[DMCForum] Re: Re: Carbureting DeLoreans

["content22207" <brobertson@xxxxxxxxxxxx>]

Uh oh, didn't realize Louie was lurking the Forum. Good thing I didn't
say anything controversial (he *WAS* trying to lose me).

I'm burning a Motorcraft 2150. Even though it's just a 2 barrel, it
does have a "high speed circuit" that acts just like secondaries on a
4 barrel. Dumps liquid fuel at WOT. The PRV does *NOT* like liquid fuel. 
Bogs down terribly and shoots black smoke (thank goodness I don't have
catalytic converters). This circuit is triggered by an internal cam on
the throttle plate shaft, not vacuum drop. Until I disect the carb and
figure out some way to disable it, the only way to avoid activating
the high speed circuit is to discipline myself not open the throttle
plates all the way.

Which of course means I kept up with Louie at partial throttle...

I went with a 2150 spec'd for the German 2.8L V6 Ford was dropping
into Mustang II's. Shooting in the dark (know anyone else who's
carbureted their DeLorean I could ask?) that was all I knew to do.
Main jets are fine. I just need to figure out some way to disable the
secondaries.

Bill Robertson
#5939

>--- In DMCForum@xxxxxxxxxxxxxxx, "Louie" <louie@xxxx> wrote:
> 
> I'll chime in since I've driven Bill's car, owned 2 DeLoreans and 
> have driven a bunch of others. The big difference I can tell with 
> Bill's car is it makes a lot more power in the lower rpms. Like he 
> said in an earlier post we were rallying through Charlotte traffic 
> the other day and he kept up with me easily, and without going over 
> 5k RPMS while I was redlining mine. He'd easily lose me on take 
> offs, but I might be able to beat him once my car picked up steam 
> and got moving. That's probably only because he hasn't got his 
> jetting just right on his carb yet. When the secondary kicks in it 
> absolutely drowns his car with fuel. 
> 
> I think if he can find a way to fix that his car would be a little 
> rocket ship. Look into Bill's folder in the photos section of either 
> the DMCNews or DMCForum yahoo websites (#5939). You'll see how much 
> simpler and lower Bill's intake manifold is. The stock DeLo intake 
> routes incoming air all over creation. Bill's basically has a little 
> chamber below the carb with 6 spider legs going straight to the 
> heads. I know intake manifolds are designed to tweak hp and torque 
> for different applications and so Bill's manifold also might be why 
> his car seems to make more low end torque than a stock DeLorean PRV 
> does.
> 
> The best thing by far with his engine though is access and ease of 
> maintanence. It takes him two minutes to get his intake manifold 
> off. Bill did it at a gas station in Pigeon Forge. He took off the 
> manifold then had it back on before his car was filled up LOL! And 
> none of this BS with DeLo idle problems either... hmm... *starts 
> considering carburetion* LOL! -Louie
> 
> --- In DMCForum@xxxxxxxxxxxxxxx, Bob Brandys <BobB@xxxx> wrote:
> Was there any noticeable difference in performance?
> BOB

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