What are your thoughts on installing new injectors, fuelrail and boost a pump. The way I see it if I increase the flow wont that increase horse? The last car I built had a carb so Im new to moding a Fuelie. So I thought I would ask first.
I do not think that would work. I think you would end up running too rich all the time. now if you got a chip programmed for the new injectors and the new fuel pressure (not sure if you even need to do that) that you may see an increase. I don't fully know but I do know that withthe stock setting of the computer the car will open the injectors for a set amount of time and with bigger injectors the cylinder would get more gass than needed, the chip can take into account the injector size and shut them off sooner to avoin a too rich situation.
Dont forget about the O2's either. If they see too much fuel they will set a CEL. If you put larger injectors on and thats all, then they will work cause the ECU doesnt know what size you have on there. But it will command the injector to be on for so long. A larger injector will flow more fuel in the same amount of time.
Keep in mind that just because you are putting more fuel in doesnt automatically equate to more horsepower. You have to actually burn the fuel to get anything out of it, otherwise you are just increasing your fuel dilution in your oil and saturating your catalytic converter, and one way to kill a cat quick it to saturate it with fuel to say nothing of the O2 sensors.
____________________ My car is a synner! It uses Amsoil Synthetic Lubricants.
2001 Pontiac Grand Prix GTP
It whines a lot, but I like it
the computer will adjust out larger injectors to a point. Then it will throw a CEL for the fuel trim exceeding 20%. running rich dosent increase power.
I just did a fuel mixture adjustment on my boss's 85 Porsche 944. IT was running so damn rich that the CO was 10%. The equals about 9:1 AF.
I replaced the restricted fuel pressure regulator and set the mixture on the 4 gas.
runs WAAAY stronger and dosent foul out plugs in 2 days anymore.
