Re: Porsche Motors in BTTF Deloreans

["John Dore" <dmcjohn@xxxx>]

Hey Bob,
I don't think they used anything but original DeLorean engines in 
the cars right throughout the trilogy... In BTTF3, when Marty is 
going from 1955 to 1885, the car drives over the camera so you get a 
view of the undercarriage, and in one of the frames you can clearly 
see an original DMC oilpan, suggesting they stayed with the original 
engines.

See ya,
John Dore, Ireland. #3810.

> Bob,
> 
> After seeing the same information on the DVD a few months ago, I 
did
> contact Stephen Clark (BTTF.com) to see if he had someone to 
contact
> about verifying this info. He recommended trying a chat session 
with
> Bob Gale scheduled earlier this year, but I could not get through
> with the question or he just ran out of time to answer every 
request.
> I am still pursuing other contacts, with no verifiable details yet.
> 
> As far as identifying the possible Porsche engines, the field does
> narrow quickly based upon the production periods of the movies.
> 
> As for choice of Porsche engines, the flat six of the 911 models
> would have been a real challenge to fit in a Delorean without some
> substantial modifications to the engine cradle area. The early,
> normally aspirated 944 engines (4 cylinders) put out about the same
> amount of HP as the stock PRV V6, at 135HP through 1985.5 models.
> While the 944 Turbo engines put out substantially more HP, these
> engines were first offered in 1986 in the US, so the only Porsche
> Turbo 4 available for the first movie would be the 924 Turbo and
> that model made less HP than the normally aspirated early 944. 
> However, Turbo engine transplants also imply complicated exhausts.
> 
> Although I would have to listen to the details again to be sure, 
but
> on the DVD, I think Bob and Bob alluded to more use of the Porsche
> engines in the second and third movies, allowing the possibility of
> using the later model 944 engines, either the 16 valve 944S engine
> or the even more powerful 944 S2, 16 vavle, 3.0 Liter 4 cylinder.
> The 944S is just shy of 190 HP, while the 944 S2 makes 210 HP.
> 
> In any case, the engine sound used in the BTTF movies does not 
appear
> to be a Porsche Turbo engine (they all have a distinct Turbo 
whine),
> so it is much more likely that a modified 944 engine was used, for 
an
> easier install or the air cooled, flat six was engineered into the 
D.
> 
> Until we find out from the BTTF gear head in charge, this topic 
will
> probably keep us guessing for a while longer.
> 
> Later,
> Rich W.
> 
> --- In dmcnews@xxxxxxxxxxxxxxx, Bob Brandys <BobB@xxxx> wrote:
> > Just finished watching all the detail stuff on the BTTF DVDs. 
Early 
> on 
> > in the DVDs they talked about the Delorean having a 4 cylinder 
which 
> we 
> > all thought was wrong.
> > 
> > Well, in the third DVD they talk about the Delorean's being 
> retrofitted 
> > with more powerful Porsche engines. This is news to me, but the 
> sound 
> > from the engines in the movies is certainly reminiscent of 
Porsche 
> > exhaust systems. 
> > 
> > Anyway, who did these conversions.? Kevin Pike certainly did 
> not.. 
> > Jay Orvis did not. Bob Boyce was not aware of this.
> > 
> > It certainly was not a Porsche flat 6 (though the white wall 
tired 
> > Delorean may have been a Porsche/VW chassis.), Was it is a turbo 
4 
> > cylinder.? This may be probable since these were supposed to be 
> more 
> > powerful engines than the Ds.
> > 
> > Well for those BTTF purists (HA! HA!), I guess we would have to 
put 
> > Porsche engines in our cars.
> > 
> > BOB