does anyone know how you can tell
how much more air u need when u add more fuel
like say i install 860cc injectors what should i do for more air?

 

1st off we dont know what kid of car u have... Turbo - N/A, i hear thats way to big.. i hear after u street port u can put turbo ones in your 2nd fuel rail. but thats my .02 , thats for an N/A

 

It sounds like you don't understand how EFI works. You don't add air to compensate for more fuel. The airflow is measured by the ECU and it then calculates how much fuel needs to be injected. Fuel system mods are needed when the airflow has been increased to the point where the stock fuel hardware can't supply the required amount of fuel.

Since you've given us zero info on your car, that's all you get for now.

 

yeah you cant really just " add air", you add fuel based on the amount of air coming in not the other way around!

need to know mods and what car to help you at all

 

Electric supercharger!


-Ted

 

yea i should have left that
i have an 86 so far with no mods on it
just regular f.i. tryin to figure out what to do to get some speed of the car
with out a turbo

 

you dont need larger injectors unless your making like 250 hp on a NA car,

the big gain mods, are full exhaust system with RB header, a true cold air intake( route it to somewhere where it can actually suck cold air, infront of car),
doesnt add hp but "makes more use of hp available" ,light weight flywheel, upgraded clutch, and then weight reduction( remove interior AC power steer, get aluminum hood, ect...