evelhalo

87, GXL
CAI (with box as soon as i can figue out how to route some airflow from brakes)
high flow exhaust "(fabbed; i need some mufflers!!)
boring Tb and porting next week

so what i want to know is if i dont buy a computer upgrade am i going to have trouble with this car running a tII fuel pump and 550 secondaries? would just an A/f autometer be sufficient?
I have gone through the archives and read all the info on this, i just want opinions and expertise (maybe someone who has tried it)
I know it can be made to work, i just want to know how well, and if its helping or hurting without a comp.

Kai

That car doesn't need a computer, fuel pump, OR bigger secondaries. In fact, you should pick up an S-AFC or S-AFR to lean it out. Even with bolt-ons, N/A's run pig rich.

I dyno'ed my N/A with bolt-ons and it still dove to 10:1 A/F by redline.

bigdv519

iTrader: (3)

Kai is right, your car doesn't need a computer, fuel pump, or bigger injectors. The S-Afc will help out to lean your already rich mixture. You could use the pump if your running nitrous.

evelhalo

thx, I may run nitrous eventualy, def some forced induction, but i just think i want better fuel pressure at the high rpms, especially since itll be ported, so im gonna put the tII pump on at some point, i hear stock inj handle up to 300 so think ill get mine cleaned instead of buying new secondaries.


anyone got a good deal on a safc/afr?

Kai

Until you install something serious, fuel pressure at upper RPM's is still perfectly fine. Raising the fuel pressure now will only lower the power output and up the fuel consumption.