From: <dmcnews_at_dml_yahoogroups.com>
To: <dmcnews_at_dml_yahoogroups.com>
Subject: [DML] Digest Number 2507
Date: Sunday, March 06, 2005 3:35 PM


There are 25 messages in this issue.

Topics in this digest:

1. Re: PRV Performance - Set me straight please
From: "Rick" <rdevaux_at_dml_titan.com>

2. Daily driver performance
From: "Payne" <bpayne_at_dml_macnet.com>

3. Re: PRV Performance - Set me straight please
From: "Rick" <rdevaux_at_dml_titan.com>

4. Re: PRV Performance - Set me straight please
From: "Rick" <rdevaux_at_dml_titan.com>

5. Battery Question
From: "Jason Sisto" <wizard_at_dml_tdgllc.com>

6. Delorean Detroit Auto Rama
From: "vin00538" <lawrencesr_at_dml_netzero.net>

7. Re: Battery Question
From: "Dave Swingle" <swingle_at_dml_dmcnews.com>

8. RE: Re: PRV Performance - Set me straight please
From: "John Hervey" <john_at_dml_specialtauto.com>

9. RE: Re: PRV Performance - Set me straight please
From: "John Hervey" <john_at_dml_specialtauto.com>

10. Re: Battery Question
From: Chris Almy <chris.almy_at_dml_comcast.net>

11. Re: Battery Question
From: "Joe OBrien" <joeyoseppijoe_at_dml_yahoo.com>

12. Celebrating the Irish
From: "Videobob Moseley" <videobob_at_dml_hotmail.com>

13. Re: PRV Performance - Set me straight please
From: "content22207" <brobertson_at_dml_carolina.net>

14. Re: Re: PRV Performance - Set me straight please
From: Martin Gutkowski <martin_at_dml_delorean.co.uk>

15. Re: Battery Question
From: DMCVIN6683 <dmcvin6683_at_dml_wi.rr.com>

16. Re: PRV Performance - Set me straight please
From: "Rick" <rdevaux_at_dml_titan.com>

17. RE: Re: PRV Performance - Set me straight please
From: "John Hervey" <john_at_dml_specialtauto.com>

18. Re: PRV Performance - Set me straight please
From: "stainlessilusion" <5n-_at_dml_gmx.net>

19. Re: PRV Performance - Set me straight please
From: "therealdmcvegas" <dmcvegas_at_dml_cox.net>

20. wedding rental
From: "qwe2548" <david_owensby_at_dml_yahoo.com>

21. Re: Re: PRV Performance - Set me straight please
From: DMCVIN6683 <dmcvin6683_at_dml_wi.rr.com>

22. RE: Re: PRV Performance - Set me straight please
From: "Joseph Kuchan" <josephkuchan_at_dml_hotmail.com>

23. Throttle body problems
From: "stainlessilusion" <5n-_at_dml_gmx.net>

24. Re: PRV Performance - Set me straight please
From: "endotex23" <endotex23_at_dml_yahoo.com>

25. Re: Re: PRV Performance - Set me straight please
From: Martin Gutkowski <martin_at_dml_delorean.co.uk>





Message: 1
Date: Sun, 06 Mar 2005 01:15:29 -0000
From: "Rick" <rdevaux_at_dml_titan.com>
Subject: Re: PRV Performance - Set me straight please



John, Thanks for your input.  My vehicle doesn't have a full throttle 
switch.  Can you give details about how it works and what parts make 
up that system?  Thanks, Rick

--- In dmcnews_at_dml_yahoogroups.com, "John Hervey" <john_at_dml_s...> wrote:
> 
> Rick, Activate the full throttle switch to enrich the system 
evenly. This
> activates the FV to full operation and lowers the pressure on the 
lower
> chamber of the fuel distributor to flow more fuel to the injectors. 
There
> also an operational difference between early fuel distributors 
w/out Lambda
> before 1980 VS distributors after 1980. With out changing the 
distributor to
> a non Lambda one, the switch is a easy mod.









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Message: 2
Date: Sat, 5 Mar 2005 15:46:28 -0800
From: "Payne" <bpayne_at_dml_macnet.com>
Subject: Daily driver performance


I've had the same experience with my D. Every time I would let it sit the 
car would not respond as well, it seemed to only be happy when I drove it 
every day like I used to. Unfortunately she's been down for a couple months 
with steering problems and I'm only driving my 2000 Subaru. It may be some 
time before I can get her well again and I'm afraid she will develop more 
problems sitting.

payne
#2975

>
> Also to mr. one year anniversary...  kudos to you...   My D is my
> 2nd car as I have a 2003 Chevy Silverado, but drive the D daily, my
> mechanic who is a D specialist advises this as the best way to keep
> the car performing top notch....   I would recommend this to all,  I
> bought my D fairly recently and it was only driven one every 2
> months or thereabouts, since I have had it and driven daily followed
> by a 900 mile trip home it has responded better and better,  It is
> truly "much happier"
>
> Rodney
> #3300
>


---
[This E-mail Scanned for viruses by Onlinemac.com]






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Message: 3
Date: Sun, 06 Mar 2005 01:29:40 -0000
From: "Rick" <rdevaux_at_dml_titan.com>
Subject: Re: PRV Performance - Set me straight please



Gary, The mods I'm going to do are changing my CPR to one that has 
vacuum enrichment, replace my ign distributor with a B28E distributor 
which eliminates the delay solenoid set up, higher compression 
pistons, head porting, B28E cams and headers with a 2.5 inch hi-flo 
exhaust without a cat.  I just want to take what the basic B28 could 
be without going "exotic".  No turbo, no Megasquirt, I want to keep 
it as basic as possible.  I thought the B28E cams and pistons would 
be a good start, keeping the engine stock and dependable.  I also 
want to keep the K-Jet so that when problems with the fuel system do 
develop, they'll be reasonable to deal with.  My engine is rated the 
same as the Delorean, 130 hp.  How are folks, DMUK and DMCH, getting 
their hp boosts from 130 to 150-190?  Are there rising-rate pressure 
regulators available that could be considered?  Thanks very much, Rick

> Good choice. Those who tout open loop or carburation claim their 
cars
> run great but they're going by the seat of their pants. If they 
drove
> around with some metrology (a gas analyzer, wide band O2S, or even a
> cheap A/F meter running in open loop) they'd soon see how poorly the
> basic K Jet (or worse, a carb) meters fuel. And every time the 
mixture
> deviates outside a narrow range they're losing performance. Not to
> mention the pollution and wasted fuel. Such setups are anachronisims
> of the automotive world best reserved for those unwilling or unable 
to
> learn the very real benefits from not using them.
> 









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Message: 4
Date: Sun, 06 Mar 2005 03:27:39 -0000
From: "Rick" <rdevaux_at_dml_titan.com>
Subject: Re: PRV Performance - Set me straight please



Is there a way to modify the warm up regulator so that it acts like a 
rising rate pressure regulator?








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Message: 5
Date: Sat, 5 Mar 2005 23:25:02 -0500
From: "Jason Sisto" <wizard_at_dml_tdgllc.com>
Subject: Battery Question


Can anyone tell me the proper specs for a replacement battery for the DeLorean?  I know that the Interstate MT78 works, however, I was wondering if any knew the exact specs of the original battery (size, cold crank amps, side post only, etc.)
 
Autozone & other aftermarket places only have the cross referenced one for the Volvo.
 
Thanks
 
Jay
10648
6441
2449
1548


[Non-text portions of this message have been removed]






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Message: 6
Date: Sun, 06 Mar 2005 05:38:42 -0000
From: "vin00538" <lawrencesr_at_dml_netzero.net>
Subject: Delorean Detroit Auto Rama



Hey Rick,Sandor,Mike,
 Great meeting you At the show to put a face with the emails, I enjoy 
talking about my D & setting these people who walk up only to say to 
everyone standing around my crouded car "HEY THIS IS THAT COCAINE 
GUYS CAR" Then I give it to them & everyone standing there listens to 
how & what realy happened & they take the time to look over my mini 
movie & SCREEN SAVER slide show to see all the details & different 
stages of the build of a D. They all walk away with the true knowlage 
of John De Lorean & is real encounters with politics & manufactoring.
I went horse to day at about 9:30 pm so it's going to be a rough day 
sunday the last day. I'm going to try to post a few pictures from 
today in the picture posts under AutoRama Show 2005 so everyone can 
see a little bit of my display & car I'll post more when I get time 
to relax a little. Again thanks for coming out & Keeping The Dream 
Alive. I would also like to thanks the other owners & enthusists that 
came out to support the cause & the chance to see a De Lorean up 
Close, I really wish John could have come out I'm set up in the main 
Ilse center stage ACROSS FROM GM'S NEW GTO isn't that a hoot. Hope to 
see some more owners on sunday the show opens from 10:30am to 8:00pm 
for the last day.
Again thats for all the support & I'll see ya all later.
Lawrence Vin # 00538 








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Message: 7
Date: Sun, 06 Mar 2005 06:05:04 -0000
From: "Dave Swingle" <swingle_at_dml_dmcnews.com>
Subject: Re: Battery Question



Generally if you go into a battery place (that knows what they are 
doing), and you say "Group 78", they give you the right 
battery. "Group 78" dictates a case size and post configuration, the 
CCA and other ratings will vary by manufacturer, price, marketing 
whim, etc. 

It's a VERY common size, in fact the same as my 98 Chevy Suburban and 
about a million other late-70s to now large GM vehicles. 

Dave

--- In dmcnews_at_dml_yahoogroups.com, "Jason Sisto" <wizard_at_dml_t...> wrote:
> 
> Can anyone tell me the proper specs for a replacement battery for 
the DeLorean?  I know that the Interstate MT78 works, however, I was 
wondering if any knew the exact specs of the original battery (size, 
cold crank amps, side post only, etc.)
>  
> Autozone & other aftermarket places only have the cross referenced 
one for the Volvo.
>  
> Thanks
>  
> Jay
> 10648








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Message: 8
Date: Sun, 6 Mar 2005 00:22:50 -0600
From: "John Hervey" <john_at_dml_specialtauto.com>
Subject: RE: Re: PRV Performance - Set me straight please


It already does that. It goes from a WUR to a CPR, Control Pressure
Regulator.
John Hervey
www.specialtauto.com



-----Original Message-----
From: Rick [mailto:rdevaux_at_dml_titan.com]
Sent: Saturday, March 05, 2005 9:28 PM
To: dmcnews_at_dml_yahoogroups.com
Subject: [DML] Re: PRV Performance - Set me straight please

Is there a way to modify the warm up regulator so that it acts like a
rising rate pressure regulator?







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Message: 9
Date: Sun, 6 Mar 2005 00:27:08 -0600
From: "John Hervey" <john_at_dml_specialtauto.com>
Subject: RE: Re: PRV Performance - Set me straight please


Rick, Do you have a Technical manual.  The information is on page 71 along
with some of the other questions your asking.
John


-----Original Message-----
From: Rick [mailto:rdevaux_at_dml_titan.com]
Sent: Saturday, March 05, 2005 7:15 PM
To: dmcnews_at_dml_yahoogroups.com
Subject: [DML] Re: PRV Performance - Set me straight please





John, Thanks for your input.  My vehicle doesn't have a full throttle
switch.  Can you give details about how it works and what parts make
up that system?  Thanks, Rick

--- In dmcnews_at_dml_yahoogroups.com, "John Hervey" <john_at_dml_s...> wrote:
>
> Rick, Activate the full throttle switch to enrich the system
evenly. This
> activates the FV to full operation and lowers the pressure on the
lower





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Message: 10
Date: Sat, 05 Mar 2005 22:50:25 -0800
From: Chris Almy <chris.almy_at_dml_comcast.net>
Subject: Re: Battery Question


Do yourself a favor and spend a few extra bucks to get a red top Optima 
battery. They fit just fine and perform very well. Also they won't leak 
which can destroy the carpet (just ask the PO of my D). I've had one for 
1.5 years and so far it's held up well to the abuse the DeLorean electrical 
system can put it through.

You might notice that there is also a yellow top Optima battery. This is 
deep cycle and costs more. I wouldn't recommend them as they have less 
capacity and lower CCA. Unless you run something for long periods of time 
off the battery when the engine isn't running, then they aren't necessary.

Chris
VIN 4099

At 11:25 PM 3/5/2005 -0500, you wrote:
>Can anyone tell me the proper specs for a replacement battery for the 
>DeLorean?  I know that the Interstate MT78 works, however, I was wondering 
>if any knew the exact specs of the original battery (size, cold crank 
>amps, side post only, etc.)
>
>Autozone & other aftermarket places only have the cross referenced one for 
>the Volvo.
>
>Thanks
>
>Jay
>10648
>6441
>2449
>1548






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Message: 11
Date: Sun, 06 Mar 2005 09:37:30 -0000
From: "Joe OBrien" <joeyoseppijoe_at_dml_yahoo.com>
Subject: Re: Battery Question



Go for the Optima batteries. Just better all around for Deloreans in 
terms of durability. Little pricey, but hear nothing but good things.

Just my $0.02


Joe OBrien













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Message: 12
Date: Sun, 06 Mar 2005 01:20:59 -0600
From: "Videobob Moseley" <videobob_at_dml_hotmail.com>
Subject: Celebrating the Irish


I took my silver Irish chariot to be displayed today at the North Texas 
Irish Festival.
I were clad in me kilt and all!
Much thanks to the Ohio club for the "fact sheet", because I must have 
passed out about a ream of those suckers today.

The looks like it glass ball in the possesion of a group of 3 year olds 
after eating chicken.
It is fingered up to death.
I will need to do a major washing, but no harm done.

People were pleasently surprised to find that the car was built in Ireland.
they got a real kick out of it.

Anyway, I would like to let anyone new to the list know about the Dallas 
Fort Worth DeLorean Motor Club is looking for any DeLorean owners in the DFW 
area know we are here, and that we have been invited to be in the St. 
Patricks Day Parade and then on display afterwards.
If you are a DeLorean owner in the DFW area, please contact me.
If you are lurker on the list nd just a fan of DeLoreans, please come to the 
parade and I will be happy to show you my car!

Thanks!
- Videobob
http://www.dfwdmc.com







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Message: 13
Date: Sun, 06 Mar 2005 07:12:27 -0000
From: "content22207" <brobertson_at_dml_carolina.net>
Subject: Re: PRV Performance - Set me straight please



I am of the opinion that domestic F series is a counterproductive and
even harmful application of the Douvrin design. How else to explain
generally unhappy North American experience while Europeans seem to
love the engine. The PRV over here has a negative reputation totally
disproportionate to the small number actually imported.

Biggest flaw I see in the North American version is heat. Irrespective
of any other advantages or disadvantages, a richer fuel mixture simply
burns cooler. Domestic PRV's are hot as a firecracker. I once got 2nd
degree burns on my fingertips touching a stock DeLorean engine! My
Renault block (Z7, European spec) never ran as hot as a B28F, and my
current carbureted Peugeot version was running so cool this winter
that I bumped the thermostat up to 195 degrees (versus 188 degrees F
spec). 

All that heat can't be healthy for gaskets and seals, or even the
aluminum itself. Don't forget that PRV's, especially in K Jetronic
trim, are very dependent on tight gasketing. I also wonder if imfamous
PRV "oil problems" are exacerbated by barbequing the stuff.  
Americans seem to be the only people complaining.

Heat is also Enemy #1 for alternators (what's the single most common
engine accessory failure experienced by DeLorean owners...). 

Europeans did several things on their PRV's much better than US
regulations allowed:
- Kept compression high. Gives you the same benefits of forced
induction without any of the complications. Does require a richer
mixture, though.
- Used higher lift cams. Allows more mixture into the cylinders.
- Didn't monkey with fuel/air ratios (engine warmed up -- key word
"warm", not "hot").
- Didn't force the engine to breathe its own exhaust (EGR). Didn't try
to burn anything where nothing was never intended to burn (exhaust
system via catalytic converter and smog pump).
Simple things that add up to 145-150 HP. B280 redesign bumped
compression all the way to 10:1, increasing HP to 170 (in conjunction
with different crank/bearings, valve train, and yes -- EFI).

One last thought: engineering that seems terminally wierd on a K
Jetronic equipped PRV (Valley of Death, inaccessible ignition
distributor, etc) makes perfect sense when you deal with the same
components on a non-K Jetronic application. Douvrin did not design the
engine for the fuel injection it later inherited. Volvo corrected much
of that in the B280 redesign.

Bill Robertson
#5939

>--- In dmcnews_at_dml_yahoogroups.com, "Rick" <rdevaux_at_dml_t...> wrote:
> 
> 
> Gary, The mods I'm going to do are changing my CPR to one that has 
> vacuum enrichment, replace my ign distributor with a B28E distributor 
> which eliminates the delay solenoid set up, higher compression 
> pistons, head porting, B28E cams and headers with a 2.5 inch hi-flo 
> exhaust without a cat.  I just want to take what the basic B28 could 
> be without going "exotic".  No turbo, no Megasquirt, I want to keep 
> it as basic as possible.  I thought the B28E cams and pistons would 
> be a good start, keeping the engine stock and dependable.  I also 
> want to keep the K-Jet so that when problems with the fuel system do 
> develop, they'll be reasonable to deal with.  My engine is rated the 
> same as the Delorean, 130 hp.  How are folks, DMUK and DMCH, getting 
> their hp boosts from 130 to 150-190?  Are there rising-rate pressure 
> regulators available that could be considered?  Thanks very much, Rick
> 









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Message: 14
Date: Sun, 06 Mar 2005 11:39:20 +0000
From: Martin Gutkowski <martin_at_dml_delorean.co.uk>
Subject: Re: Re: PRV Performance - Set me straight please


I just want to make it very clear that our setup (DMUK) is totally 
different and developed independently of DMCH's. Ours is simply a way of 
getting the most out of a stock DeLorean engine by replacing anything to 
do with the emissions control system, and then taking advantage of the 
different fuelling. This means there can be no catalytic converter. Our 
annual emissions testing for a car built in 1981 is a simple CO test at 
idle. The allowable level is 4.5% and we tune ours to 1.5-2%, no cat.

It took quite a bit of research and more than a bit of hit-and-miss to 
work out a system that did what we wanted. My own car, #1458 was one of 
three "test cars" which basically got secondhand parts thrown at it. My 
car gained considerably in torque and truly made it a quick car that's a 
lot of fun to drive. I have never dyno'd it. I don't need to, I know how 
it goes, and so do our customers who have had the upgrade performed, and 
those who have tried to keep up with me! Anyone having the upgrade 
performed gets new parts, in case anyone wonders!

Because it's business, I'm not about to go and tell everyone how to do 
this (sorry) but I do know it's totally different from DMCH's approach - 
their engine still uses the lambda system for example. Their engine -is- 
more powerful, but it puts out considerably less low-end torque 
-in-my-opinion- than our setup.

I can say with confidence that the exact setup we create was never used 
on any Volvo or Renault. It is a hybrid of several systems, with a 
couple of new ingredients thrown in.

Martin
DMUK

Rick wrote:

>
>Gary, The mods I'm going to do are changing my CPR to one that has 
>vacuum enrichment, replace my ign distributor with a B28E distributor 
>which eliminates the delay solenoid set up, higher compression 
>pistons, head porting, B28E cams and headers with a 2.5 inch hi-flo 
>exhaust without a cat.  I just want to take what the basic B28 could 
>be without going "exotic".  No turbo, no Megasquirt, I want to keep 
>it as basic as possible.  I thought the B28E cams and pistons would 
>be a good start, keeping the engine stock and dependable.  I also 
>want to keep the K-Jet so that when problems with the fuel system do 
>develop, they'll be reasonable to deal with.  My engine is rated the 
>same as the Delorean, 130 hp.  How are folks, DMUK and DMCH, getting 
>their hp boosts from 130 to 150-190?  Are there rising-rate pressure 
>regulators available that could be considered?  Thanks very much, Rick
>  
>






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Message: 15
Date: Sun, 6 Mar 2005 10:18:22 -0600
From: DMCVIN6683 <dmcvin6683_at_dml_wi.rr.com>
Subject: Re: Battery Question


I have to agree because i have the red top Optima battery in my car too 
and with the old battery i would notice battery acid smells once in a 
while and with the Optima battery i smell nothing.

Plus the Optima battery is supposed to last up to twice as long as a 
regular car battery.

Mark V


On Mar 6, 2005, at 12:50 AM, Chris Almy wrote:

>
>
> Do yourself a favor and spend a few extra bucks to get a red top Optima
> battery. They fit just fine and perform very well. Also they won't leak
> which can destroy the carpet (just ask the PO of my D). I've had one 
> for





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Message: 16
Date: Sun, 06 Mar 2005 15:39:47 -0000
From: "Rick" <rdevaux_at_dml_titan.com>
Subject: Re: PRV Performance - Set me straight please


John, I've got the Volvo Haynes and Chiltons that I could look 
through.  Are you refering to a Delorean manual?  Thanks, Rick


--- In dmcnews_at_dml_yahoogroups.com, "John Hervey" <john_at_dml_s...> wrote:
> 
> Rick, Do you have a Technical manual.  The information is on page 
71 along
> with some of the other questions your asking.
> John
>





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Message: 17
Date: Sun, 6 Mar 2005 11:46:35 -0600
From: "John Hervey" <john_at_dml_specialtauto.com>
Subject: RE: Re: PRV Performance - Set me straight please


The Delorean Technical Manual is the one to have for a lot of questions your
asking. It explains the operational aspects along with diagrams and
technical information. The books are about 1/2 way down on the page.
John
http://www.specialtauto.com/delorean-parts/accessories.html

-----Original Message-----
From: Rick [mailto:rdevaux_at_dml_titan.com]
Sent: Sunday, March 06, 2005 9:40 AM
To: dmcnews_at_dml_yahoogroups.com
Subject: [DML] Re: PRV Performance - Set me straight please

John, I've got the Volvo Haynes and Chiltons that I could look
through.  Are you refering to a Delorean manual?  Thanks, Rick


--- In dmcnews_at_dml_yahoogroups.com, "John Hervey" <john_at_dml_s...> wrote:
>
> Rick, Do you have a Technical manual.  The information is on page
71 along
> with some of the other questions your asking.
> Joh





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Message: 18
Date: Sun, 06 Mar 2005 16:42:27 -0000
From: "stainlessilusion" <5n-_at_dml_gmx.net>
Subject: Re: PRV Performance - Set me straight please


Don't forget that these engines are sitting in the back of the
DeLorean. As opposed to engines that sit up front and have air blowing
on them all the time (from fan or just from air flowing into the
radiator); the DeLorean has a very poor air flow in my opinion. If we
had intakes on the sides of the car that scooped up air and threw it
on the engine, I'd bet they would be much cooler. Nonetheless, the air
flow isn't so bad as it melts anything, I've had these stupid wire
loomes on my wires and they never melted, even near my manifolds
(which all lack heat shields)-i finally ripped these off and threw
them away, hate these things. Also, it is possible to run a cat with
the exhaust and not choke everything up; just don't use the stock cat
but rather use a universal one with a larger input and output. For
inspections you need to have a cat, and for testing obviously you need
to have good numbers otherwise you're failed...in most states now
anyway. -----Dani B. #5003




> 
> I am of the opinion that domestic F series is a counterproductive and
> even harmful application of the Douvrin design. How else to explain
> generally unhappy North American experience while Europeans seem to
> love the engine. The PRV over here has a negative reputation totally
> disproportionate to the small number actually imported.
> 





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Message: 19
Date: Sun, 06 Mar 2005 19:09:50 -0000
From: "therealdmcvegas" <dmcvegas_at_dml_cox.net>
Subject: Re: PRV Performance - Set me straight please



--- In dmcnews_at_dml_yahoogroups.com, "stainlessilusion" <5n-_at_dml_g...> wrote:
> 
> Don't forget that these engines are sitting in the back of the
> DeLorean. As opposed to engines that sit up front and have air 
blowing
> on them all the time (from fan or just from air flowing into the
> radiator); the DeLorean has a very poor air flow in my opinion. If 
we
> had intakes on the sides of the car that scooped up air and threw it
> on the engine, I'd bet they would be much cooler.
<SNIP>

I'm gonna argue that one. The vented engine bay of the DeLorean, with 
the radiators mouted remotely, is a helluva lot cooler than that the 
engine bays of the front mounted cars I've owned. Even my 4-banger 
pickup's engine compartment is hotter. And keep in mind that the 
DeLorean also houses it's catalycic convertor in the engine 
compartment too.

The DeLorean is a great design. Front radiators that vent hot air out 
the wheel wells. A rear engine that bathes it's finned oil pain in 
cool air, and lies in a fully vented compartment.

Air blowing across an engine makes no difference. Especially when 
it's hot air that has been warmed by the engine's own heat from a 
radiator.

-Robert
vin 6585 "X"








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Message: 20
Date: Sun, 06 Mar 2005 18:46:22 -0000
From: "qwe2548" <david_owensby_at_dml_yahoo.com>
Subject: wedding rental



Hi all,
I am planning on getting married in Oct. 05, and am looking to rent a
DMC or BTTF-DMC for the big day. 
Anyone know someone in Bucks County, PA?

Thanks,
David








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Message: 21
Date: Sun, 6 Mar 2005 12:36:01 -0600
From: DMCVIN6683 <dmcvin6683_at_dml_wi.rr.com>
Subject: Re: Re: PRV Performance - Set me straight please


I dont know why you think the airflow is bad because the deloreans rear 
deck lid and louvers are designed to suck air from underneath the car 
through the engine compartment while you are driving it, in fact it has 
a much better cooling effect because front engine cars do not have 
vents covering the whole hood and can only grab air through the grille 
and push it out the hood cracks.

Mark V


On Mar 6, 2005, at 10:42 AM, stainlessilusion wrote:

>
>
> Don't forget that these engines are sitting in the back of the
> DeLorean. As opposed to engines that sit up front and have air blowing
> on them all the time (from fan or just from air flowing into the
> radiator); the DeLorean has a very poor air flow in my opinion. 





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Message: 22
Date: Sun, 06 Mar 2005 14:39:32 -0600
From: "Joseph Kuchan" <josephkuchan_at_dml_hotmail.com>
Subject: RE: Re: PRV Performance - Set me straight please


Rick,

My article in the Fall 2004 issue of "Gullwing" explains how configure it as 
a "falling rate control pressure regulator" which accomplishesd the same 
thing a rising rate fuel pressure regulator does on a Chevy or other 
"normal" (i.e. non-K-Jet) car. The mod I describe only changes control 
pressure under boost, which is really the only time you need to on these 
cars, as the K-Jet can accomodate all driving conditions up to boost without 
any problem.

If you don't already get Gullwing, do yourself a favor and subscribe. It is 
a great resource for a DeLorean owner.

-Joe Kuchan

>From: "John Hervey" <john_at_dml_specialtauto.com>
>Reply-To: dmcnews_at_dml_yahoogroups.com
>To: <dmcnews_at_dml_yahoogroups.com>
>Subject: RE: [DML] Re: PRV Performance - Set me straight please
>Date: Sun, 6 Mar 2005 00:22:50 -0600
>
>
>
>It already does that. It goes from a WUR to a CPR, Control Pressure
>Regulator.
>John Hervey
>www.specialtauto.com
>
>
>
>-----Original Message-----
>From: Rick [mailto:rdevaux_at_dml_titan.com]
>Sent: Saturday, March 05, 2005 9:28 PM
>To: dmcnews_at_dml_yahoogroups.com
>Subject: [DML] Re: PRV Performance - Set me straight please
>
>Is there a way to modify the warm up regulator so that it acts like a
>rising rate pressure regulator?







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Message: 23
Date: Sun, 06 Mar 2005 20:42:51 -0000
From: "stainlessilusion" <5n-_at_dml_gmx.net>
Subject: Throttle body problems



I recall reading someone else having this same problem, but fail to
remember the outcome; nor can I find this in the archive for some
reason. Today I dismantled my throttle body, and cleaned all the gunk
out of it as well as lube the shaft the throttle plates are mounted
to. After all, while examining; you can see light come through with
the throttle plates full closed (around the plates, not the valve).
Normal, or not? one plate has more light coming through then the other
so I would say it isn't normal and will require a new assembly. I just
wanted some input on this, sorry to bring it up again though. Thanks
guys-----Dani B. #5003 








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Message: 24
Date: Sun, 06 Mar 2005 21:09:57 -0000
From: "endotex23" <endotex23_at_dml_yahoo.com>
Subject: Re: PRV Performance - Set me straight please



--- In dmcnews_at_dml_yahoogroups.com, "content22207" <brobertson_at_dml_c...>
wrote:
 
> Biggest flaw I see in the North American version is heat.
Irrespective of any other advantages or disadvantages, a richer fuel
mixture simply burns cooler. Domestic PRV's are hot as a firecracker.<

Not true. While a richer mixture does result is cooler exhaust stream
temps the fact is running at a best power mixture (and why would you
run at anything else if you're seeking power) results in the highest
cylinder head temps across the mixture regime. I also remind you an
engine running leaner than about 50 degrees on the lean side of peak
EGT (which occurs at stoich) runs cooler and cleaner than at any other
point where combustion is useful. 

The bottom line is running at stoich is harder on exhaust components
but results in cooler cylinder temps. This is basic combustion theory.
Anyone familar with air cooled engines also knows this.

>I once got 2nd degree burns on my fingertips touching a stock
DeLorean engine!<

Good metrology there Bill. You'd burn yourself touching any engine,
running rich or not. I suggest you get a gas anaylzer or wide band O2S
and stop using your fingers for tuning.

>My Renault block (Z7, European spec) never ran as hot as a B28F, and
my current carbureted Peugeot version was running so cool this winter
that I bumped the thermostat up to 195 degrees (versus 188 degrees F
spec).<

No doubt because you're running richer than best power. What can you
expect from something as crappy at fuel delivery as carburation? You
should've re-jeted and not fooled with the cooling system. As I said,
you're wasting fuel, making less power than you should, and polluting
more than you should. A giant step backwards. 

> All that heat can't be healthy for gaskets and seals, or even the
aluminum itself.<

Better brush on your metallurgy. For example piston aircraft engines
are air cooled and aluminum alloyed. They run at much higher power and
temps than your PRV and suffer no ill effects. I'd be willing to bet
many motorcycle mechanics would also take you to task on that comment.

>Don't forget that PRV's, especially in K Jetronic trim, are very
dependent on tight gasketing.<

Dependent in what way? If by mixture than somewhat true but what FI
engine isn't?  And what engine doesn't depend on tight gasketing in
many other ways?

>I also wonder if infamous PRV "oil problems" are exacerbated by
barbequing the stuff. Americans seem to be the only people
complaining.<

Infamous oil problems? What would those be in the B28F? And how many
Deloreans suffer from them? I'll grant you oil temps are very
important for many reasons but I've notice there is so much
misconceptions about oil in general I'll skip the subject.

> Heat is also Enemy #1 for alternators (what's the single most common
> engine accessory failure experienced by DeLorean owners...)<

Alternator failure on the D is unrelated to heat. In fact, it's
mounted in a better position than on most cars and runs relatively
cool. Measure it and see, just be sure you're not asking too much of
it electrically at the time. Btw, a blast tube does wonders for
reducing it's temp even more.

>Europeans did several things on their PRV's much better than US
> regulations allowed: Kept compression high. Gives you the same
benefits of forced induction without any of the complications. Does
require a richer mixture, though.<

Huh? what "complications" of forced induction are you referring
too? I have a turbo car (not a D) that has 80K miles on it and can
make nearly 500 HP all day long. It's never had any complications.
And it runs at stoich, it doesn't "need" a richer mixture at all. What
is *does* need is decent intercooling. Where do you come up with this
stuff?

>Didn't monkey with fuel/air ratios (engine warmed up -- key word
> "warm", not "hot").<

A particualr A/F ratio is selected for a reason. It's true richer (to
a point) produces somewhat "cooler" combustion but since it produces
more power it also produces the highest BMEP, cylinder temps and
stresses. How is that "better" other than for driver enjoyment? Any
engine that is built to provide power over any other aspect will
suffer from quicker wear, shorter life, lower fuel economy, will
require more maintenance, and in general be less reliable. But if by
"better" you meant performance than yes, I'll give you that.

>Didn't force the engine to breathe its own exhaust (EGR).<

EGR reduces power somewhat but it does so by reducing combustion
temps. Therefore it does not increase engine temps. It's sole purose
is NOX reduction. An added benefit is a widening of the detonation
margin. 

>Didn't try to burn anything where nothing was never intended to burn
(exhaust system via catalytic converter and smog pump).<

Converter operation has no bearing on engine temps. Neither does air
injection other than stealing a bit of HP to drive it. The Delorean
doesn't use either EGR or air injection. Cats? A modern honeycombed
bed cat has little to no effect on back pressure. An older pellet bed
type cat is worse but the Delo doesn't employ one. And I remind you
too much of a free flowing exhaust is a bad thing.

Everything else you state is true and if more power is to be gained on
the B28F it's simple enough to do up to a point. Tight mixture control
 and proper timing is still important however, whether at stoich or
best power. Emissions equipment is not the kiss of death for making
power. I point out again I own a car that can eat 90% of others on the
road alive and still pass the most stringent emissions standards in
the country, all while running with factory emission gear at a lambda
of 1. How does it do that? Not by using poor fuel metering, that's for
sure. 

Finally, while I'm no great fan of emission standards I accept the
very real benefits they provide to the environment. It seems you do
not. Until you and a few others accept that gobs of power can be made
and still keep the air clean you're doomed to drive clunkers. Put
another way there *is* a substitute for cubic inches...it's called
technology.


For Martin: A D with emissions equipment is speced at 1% (measured
pre-cat with the lambda loop open) because the cat needs it there. 
With no cat 2% CO is still leaner than best power, a bit higher on the
CO will get you more. If you're looking for max power than 2% is too
low but it'll still be less than your max when you get there. Do some
dyno pulls (if you can) to get it dead on but generally speaking it
should end up around 4%.








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Message: 25
Date: Sun, 06 Mar 2005 21:25:25 +0000
From: Martin Gutkowski <martin_at_dml_delorean.co.uk>
Subject: Re: Re: PRV Performance - Set me straight please


...and the Renault Alpine's, especially the GTA Turbo and A610's which 
run extremely hot, have rear windscreens!

Martin


DMCVIN6683 wrote:

>I dont know why you think the airflow is bad because the deloreans rear 
>deck lid and louvers are designed to suck air from underneath the car 
>through the engine compartment while you are driving it, in fact it has 
>a much better cooling effect because front engine cars do not have 
>vents covering the whole hood and can only grab air through the grille 
>and push it out the hood cracks.
>
>Mark V
>  
>






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