[Shotimes] RE: Supercharging

[David P]

You should have no problems with up to 300hp applications if you are
diligent about proper setup.

As for intercepting injector pulses~ I'll pass. You adjust the fuel maps at
the engine's control computer before the injector pulses are created. LPM's,
Apexi S'AFC's, etc. are in order there. As far as blowers, I recommend a
roots blower over centrifuge unit as the roots will provide more torque
where the SHO needs it. If you want a bolt-on kit, though, you're only going
to find a centrifuge system available, and you are going to pay a lot.

I'd suggest you start with a performance y-pipe  to free up the stock
restriction and get that first 10hp boost. Maybe a CAI as well. You'll want
the performance pipe with any boost mods. While you are planning, you should
go ahead and work on improving the suspension. Can't get the power down with
a worn-out suspension. You'll probably want Aluminum or Delrin subframe
bushings, and better bushings throughout, or at least new rubber bushings.
These are good things to work on while you're working out the details of the
S/C setup.



David P

95MTX



~
----- Original Message -----
From: "Michael Humbert" <humbem@rpi.edu>
To: <shotimes@autox.team.net>
Sent: Sunday, February 09, 2003 03:37
Subject: [Shotimes] RE: Supercharging


> 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
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