[s-cars] An interesting FMIC "fact" (?)

[Theodore Chen]

--- steve powers <steve at thepowers.net> wrote:
> Teddy -
> >
> > suppose you have a chipped UrS4/S6 that is otherwise stock.  you have
> > to run 91 octane, and you notice the car often pulls timing and boost at
> > WOT.
> >
> > what would you change if you were going to spend $1000-$2000 on the
> > powertrain?  bigger turbo that would run more efficiently?  bigger IC?
> >
> > somebody on this list said to do the IC first, but it sounds like you're
> > saying do something else first.  water injection?
> 
> It's a slippery slope.
> 
> Here are the perf mods that I've done to the powertrain since owning my car:
> 
> 1) buy new 95.5 S6 Avant in December 1995
> 2) chip and add RS2 (IA version) manifold in 1996 (~$1500)
> 3) replace head due to dealer screwup in 2003 (> $8K but free to me)
> 4) add RS2 MAF, FPR, injectors, silicone hoses, metal ('93) capped stock IC,
>    Stromung exhaust, 2B K26/27 turbo, Forge BPV, 7A cam, 3 BAR sensor and 
> rechip
> 
> The exhaust manifold helped lower the engine temp even before I added the 
> larger turbo. Step 4 above was done over a couple of days. At one point, I 
> had the  new firmware and 3 BAR sensor in with the old turbo. I had to 
> watch that I didn't overspin the turbo. That baby really wanted to sing 
> and noticed much, much better low end response than stock or previous 
> chip level.
> 
> Are you putting $1-2K only in this, or is that all you can spend today? If 
> the former, maybe an exhaust and a manifold (closer to $2K). That shouldn't 
> require a rechip, which will take a large bite out of this sum.

i forgot about the exhaust manifold.  my car has MTM II+, which is the
chip, 3 bar sensor, and RS2 exhaust manifold.  everything else is stock.
i also have to use 91 octane, which is all we get in CA now.  the car
doesn't like the 91 octane, and it's not always easy to get higher octane.

at first i thought a bigger turbo that ran more efficiently would be the
way to go.  then somebody said do the intercooler first, so that's what
i was thinking about doing.  now it sounds like water injection is the
way to go.

i won't rule out spending more on the car, but i don't want to be locked
into it, either.

-teddy


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