gt884me

At what point in modding should you upgrade your injectors from stock, and what are the results from doing this?

duslep

generally i think that it is around 300 hp that you upgrade your injectors

92hatchLX

+1

mrbigshot

it doesnt add horsepower by going with bigger injectors, its keeps your engine alive by not going lean.

7upedition

i think when you upgrade cam/heads, or add a tubro or s/c you want your heads/intake combo to be balanced and that requires the motor to get enough fuel so you can adjust air fuel ratio.... would this warrant an upgraded fuel pump?

mrbigshot

yup

gspfunk

Look up in the Tech stickies....there's a post about calculating inj size.

bouchermb

I did it after SC and Intake. I did MAF, TB and fuel pump at the same time.