help: Fuel Pressure Regulator or Larger Injectors

[M3RCR]

hi all,

i am going crazy on rather changing from my stock (17.5?) injectors to larger size (21.5/24) or just leave it alone. i have Dinan fuel pressure regulator with custom chip already. my air/fuel ratio is lying perfectly around 13.

my question is, many people say that if you are running over 270BHP, you need to change the injectors to 21.5/24. but if i have the f.p.r. installed, would that be the problem??? will changing to larger injectors will give me significant gains compares to just f.p.r.??

one last stupid question, should i go reprogram my car after changing from f.p.r. to larger injectors??

many thanks.

oh, by the way, anyone knows where i can get larger injectors 21.5/24?

:p

[Kevlar]

I would recommend the larger injectors. With the 17lb injectors you may have them maxed out. It's kinda like trying to sip a milk shake through a tiny tiny straw. You can only get so much milkshake through the straw... no matter how are you suck. Eventually your head will explode.

If you use a much larger straw, you get more milkshake without having to suck as hard... henceforth, you're head doesn't explode.

When you change the injectors, you will have to have your chip reprogrammed.

You can get the larger injectors at Active Autowerke.