[Shotimes] RE: Supercharging

Michael Humbert humbem@rpi.edu
Sun, 9 Feb 2003 03:37:52 -0500


That is exactly what I had in mind.  I wanted a small amount of boost to
add a bit to the car.  I wasn't thinking 'vette bashing power.  Of
course, I don't want to go through an engine swap at this stage in the
game as my current motor is running very well and I'd rather keep a
motor that has proven to be reliable as opposed to putting in a motor
that I don't know the history of.  I figured that since my motor was
running so well it would be able to take a small amount of boost without
crapping out within 10K miles.  Anyway, would you advise against getting
a smaller supercharger and simply adding larger injectors?  As for fuel
management, I was thinking that the MAF would accurately measure the air
flow, but that the difference in injector pressure would have to be
taken into account.  Is there some way to intercept the pulses sent to
the injectors by the computer and multiply them by the ratio of (old
fuel pressure / new fuel pressure) so that the correct amount of fuel
would be added?  

Mike Humbert 


----Original Message----

From: "David P" <jpotter8@bellsouth.net>
Cc: <shotimes@autox.team.net>
Subject: Re: [Shotimes] RE: supercharging
Date: Sat, 8 Feb 2003 23:34:29 -0500

You know, at this late point in the game, I don't consider a makeover to
that extent worth the effort or money, or time (takes lot of each).
Having the money to do so does not make highly modifying a car that is
FWD, not very well balanced, and at least eight years old (Gen2) a smart
decision. Having money to do so means you can also afford a better
hot-rod like a Stang AND an SHO, or a better 4-door performer like a
BMW.

On the other hand cost-effective boost can be had. I personally am
looking at doing a "jy" S/C with an Eaton found in the grand prix GTP,
along with a 3.2L swap for the beefier rods and low-end torque. I'll
push a minimum level of boost to avoid having to rebuild the bottom end
with better parts and re-stroking, and I'll be able to use the stock
tranny without too much concern for damage due to brute power. A change
of injectors, fuel pump, fabricated steel and some method of
programmable fuel control later, and I should see 280-300hp for less
than $3k. This is worth it, to me, for an aging car that has little
support in both the aftermarket and oem.

Of course, anyone wanting to just throw their money out the door in
large quantities, by all means, enjoy yourself. At the same time, go
line up a number of good used trannys since you can hardly find enough
parts to rebuild one.


David P

95MTX