olegreen94

I have a forged piston, fully balanced 355,w hot cam and i want to know what is the stock injectors capable of i think i need more fuel? If so what size?

buffman

iTrader: (9)

stock might work if not 30lbs will get the job done. do some logging wtih datamaster if you have the ability and look at the duty cycle of the injectors. anything over 85-90% calls for bigger injectors.

Cammed95Z28

I have the same exact setup and am putting down numbers in sig. Have a high rpm miss and turns out my injectors can't keep up with my setup so I'm goin with Delphi/Racetronix 37#'s

daniel6718

iTrader: (36)

ive been doing this alot laterly but get some 42 thery are cheap, 275 brand new from HSW cant beat that

BlackScreaminMachine

iTrader: (17)

I always used #30's and when I went with a bigger cam then went to #37 Racetronix peices.

olegreen94

Ok so if i go with 30lb injectors i have a pcmforless tune will i have to get it tuned again or what will i need?

By the way Thanx for the info!

buffman

iTrader: (9)

you will have to have them make adjustments..

BlackScreaminMachine

iTrader: (17)

There is basically your PE (power enrichment table, your basic fuel map) then afterward there is a correction that you can do by a percentage. PCMforless will ball park it and make a across the board correction to run it safe.

Sweetred95ta

iTrader: (2)

What change are you making in the PE table? I would think that the percentage changes (scaling) would be done to the % Change to A/F (PE Table). Or, is it another table? The most important and drastic change made is the change to the injector flow rate in the ECM Constants.

BlackScreaminMachine

iTrader: (17)

Stupid me, I assume people knew bout that since they would have tuning software, but that is certainly correct, that table ball parks it pretty good.