Lightened Flywheels + twin tech design stuff

[sfwilliams@comcast.net (Scott F. Williams)]

Allyn, you've got a lot of sensible plans for your car. I'm going to comment
on the stuff that I think still needs some more thought.

> water injection (pulsed injectors, ecu controlled) at turbine
> intake(or)exhaust (increase charge
> density),

Injecting into a spinning turbo can be very dangerous to your unit's health.
At those high rotating speeds, the water is abrasive. It will also slow your
spool up, etc. I say that this is a bad idea.

 base of intake runners (in cylinder cooling), and
> external chargecooler-radiator and
> engine radiator spray (increase efficiency)

Now, you're talking. The intake runners and outside of the intercooler are
great places to spray. Keep in mind, though, that you'll have to carry a lot
of water on board if you're going to spray frequently at multiple points.
Frankly, I think you should be running a watercooled intercooler in the
back, anyway.

> exhaust thermocouples (4), providing feedback to intake runner
> water injection control for that
> cylinder (also to ecu for fuel dumping and/or boost/timing
> advance reduction as needed).

You're a mad man. :^) Just remember, though, that the water injection should
be a back up system -not a primary source of detonation suppression. Yeah,
water is "free" and available pretty much everywhere, but... God help you if
you run empty in the middle of a session! From the sounds of it, you're
anticipating the need for the water during most operating conditions. I
could be reading into it, too much...

As we discussed, you need to pick a suitable pump and feed system. Have you
come up with anything that offers high pressure but low flow? How will you
regulate the pressure in the water system? Again, my thought is to plumb a
rudimentary "water rail" with FPR and return line. This seems like the only
way to go...

> dare i say... brake wise(ouch):
> 10.1 ate power discs up front, 9.4 ate power discs in rear,
> proportioning valves removed, 16v
> mc/booster
> s/s lines, stock 16v calipers (front), 8v (front) calipers (in rear)

I think you'll want bigger brakes than that! I'd run the 11" units from the
Corrado up front. It isn't a hard retrofit. In fact, all you need are the
adaptor brackets which are currently on eBay. I don't remember the auction
number or whatever...
--
Scott F. Williams
NJ Scirocco nut
'99 Subaru Impreza 2.5 RS
Mazda 323 GTX turbo "assaulted" vehicle
Golf GTI 16v "rollycar"
ClubVAC: "Roads found. Drivers wanted."

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