n20stroker

iTrader: (11)

Hey guys had my car tuned at Eastside at the time i had a stock fuel pump with an inline 255. I just installed a new intank 255 and a hotwire kit. How much will this change my wide open tune.
Thanks guys

SmokingWS6

iTrader: (1)

Did your fuel pressure change after the swap? If not nothing will need to be done, if its higher/lower the IFR table will need to be scaled accordingly.

Use the IFR caculator posted in the stickies at the top of the PCM tuning forum.

n20stroker

iTrader: (11)

Fuel pressure went up 5psi. Going to see whta it does at the track tomorrow.
thanks

SmokingWS6

iTrader: (1)

5 psi is a huge difference. It will need to be reset. What is it at now?

n20stroker

iTrader: (11)

Fuel pressure is 64psi running. I built the motor for nos. Ive been running a 60 shot wet. When i change the pump i bumped up the nos to 200 shot. U think it will be ok to run the bigger shot being theres more fuel now.
Thanks