mustang02racing

I did a little bit of research on fuel injectors and I wanted to know if this is true
If you have 300HP to the flywheel then to figure out the LB injector you do
300/2=150 150/8cylinders 18.75LB injection 19 being the stock ones, so almost stock. My problem is that I just did heads and cams and I only gained 8RWHP, so using this calculation I reached 19lb injection. So my new heads and cams should make around 355HP to the flywheel. That would calculated to around 22lb, so would my injectors be the reason why I am not gaining my correct HP.

oxfordgt

I don't remember what year they switched to 24lb injectors but I think you have them. What color are your injectors?

racer02GTstang

an 02 gt has pink injectors.... what lb would that be chance? i thought they were only 19
?

czwalga00gt

Your stock injectors are fine. If you needed new ones you would find out on the dyno.

ZW99GT

I think pink is 19, and blue is 24? not sure.

mustang02racing

yea im are 19 and according to my dyno after installing the heads and cams i only gained 8RWHP so that means my fuel must be cutting off and that why im not getting a significant gain

ZW99GT

If you were maxing out your injectors your A/F ratio would be going lean, and a tuner with half a brain would stop ASAP.

Go ahead and get some 24's and have the recalibrated if you get on the dyno again.

mustang02racing

yea he told me that he fixed my air fuel ratio and he said that for some reason my car was not pulling after 4,500rpms and im not gaining significant HP which i should be gettig at least 40RWHP, i also realized that he didnt tune the car with the 4.10 gears that i have so could it be that the gear ratio can alter the RWHP reading on the dyno

97targa

PINK INJECTORS ARE 22lb'ers

oxfordgt

Pink are 22. orange are 19, blue are 36 but it is different if they are aftermarket.