Re: Performance mods

["David Teitelbaum" <jtrealty@xxxx>]

The "hot" set-up now is to use an electric blower. It doesn't take
power fron the engine directly, no weird plumbing to get the exhaust
pipes to and from the turbine, less heat, no oiling problems, no turbo
lag, easy to control. The neon set started out using modified leaf
blowers, now there are some companies selling units made for this.
This might be the way to go and it is probably cheap. Of course to
realize the full potential intercoolers would help. Just remember the
"weakest link theory". If you strengthen something the next weakest
link will break like the transmission, wheel bearings, C/V joints,
clutch etc. On the subject of velocity of the fuel-air charge, on a
forced induction engine the velocity of the charge is less important
than the pressure and temperature so porting and polishing are of
limited value. What becomes VERY important is the timing of the
ignition and the camshaft and the compression ratio. A forced
induction engine is very prone to predetonation and overboost both of
which induce high combustion pressures which are death to the pistons.
David Teitelbaum
vin 10757


--- In dmcnews@xxxxxxxxxxxxxxx, "Donald Ekhoff" <ekhoff@xxxx> wrote:
> Martin, You make an excellent point. This engine has tremendous
potential
> and sucessive variants have certainly proved this to be true. If
there was
> someone providing a service sourcing and supporting European based
engine
> upgrades, I would be first in line. My perspective is that I
already have
> the odd-fire DMV motor and see substancial gains without breaking
the bank
> or my drive train. I don't think 130 HP is enough. I suppose the
question
> is, how much more can I get for how much spent? Has anyone else
attempted a
> ported, polished (induction as well as exhaust), turbocharged (single or
> twin), intercooled, water injected DMC/PRV yet?
> 
> Don E.
> #6543
> 
> 
> ----- Original Message -----
> From: "Martin Gutkowski" <webmaster@xxxx>
> To: <dmcnews@xxxxxxxxxxxxxxx>
> Sent: Monday, April 14, 2003 3:07 PM
> Subject: Re: [DML] Performance mods
> 
> 
> > Pete Berveiler wrote:
> >
> > >I believe the 350-400 HP range is attainable with
> > >turbocharging or supercharging, but not with the DMCH
> > >mods. It will require serious high-dollar performance
> > >mods (custom intake manifolds, exhaust capable of
> > >moving that much air, new concave pistons, larger air
> > >inlet system, full distributorless EMS and new more
> > >powerful ignition system, High-flow EFI system, and
> > >different catalytic converters to be street legal)
> > >that you can drop nitrous on as well to go above
> > >400HP.
> > >
> > >
> > It's really funny how people keep on writing things like this - not to
> > have a dig at what Peter's written - he's on the money. What it comes
> > down to is the odd-fire crank in the DeLorean engine is simply not
> > suitable for turbocharging, and that is only at the top of a very long
> > list of problems with turbocharging this engine.
> >
> > Why else would the Renault 25 Turbo have such a massively
re-engineered
> > engine? The Renault Alpine A610 produces in excess of 400hp reliably
> > from a 2.5l PRV-6 that mates to the exact same gearbox as the
DeLorean.
> > The engine is an enhanced and intercooled version of that in the R25
> > Turbo, which can be found in scrapyards all over europe.
> >
> > Why do people keep trying to reinvent the wheel with an enhanced
> > original DMC PRV when so many are available just begging to be dropped
> > in, have an exhaust made to fit, and bingo-splingo, a 400hp
capable PRV
> > in the back of your D?
> >
> > The DMCH engine is about as good as you'll get without spending
serious
> > money on rebuilding and reengineering a stock engine.
> >
> > Oh, and the 3.0l PRV used in cars like the Renault Espace and Citroen
> > Xantia up until only a few short years ago can be tuned (at some
> > expense) to 300-350hp. It will bolt right in.
> >
> > Martin
> > #1458
> > #4426
> >
> >
> >
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> >
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