LS1POWERHOUSE

i have a 99 A4 car. it currently runs 11.20 on the bottle. only bolt ons are gears and lid...

now, i am adding a FM13 cam, long tubes,LS6 intake,turbo 400 w/3500,
here is the question----

IF i am adding all of the above and on top of that another 150 shot, will my tuning somehow maybe "learn" the modifications? or is there without doubt tuning needed..... ????


ANOTHER QUESTION??

what fuel pump do you guys recommend upgrading to for enough pressure to handle all of that stuff? and will i need injectors???

any help or opinions will be greatly appreciated...

TimZ28

You are going to need tuning for that configuration. The idle will be too low, you may experience starting issues, the TH400 will set off a long list of A4 codes, and you will likely get less than ideal timing and A/F ratio.

Is your nitrous setup wet or dry? If it's wet you shouldn't need new injectors. If it's dry then you will definitely need a new set of injectors.

As for a good fuel pump... the intank Walbro's 340/342 work very well. I have a 342 in my car that I used to run with H/C and a 150 wetshot. With inline pumps you are at the mercy of the intank pump to begin with. One thing I would highly suggest is running 10 guage wire to the pump and bypass the factory wiring. The voltage drop through the factory wiring with a aftermarket pump is very significant.

Tim

Another_User

If it's dry he will need more than injectors. Baaaaboom. I wouldn't run more than 100 shot without serious tuning.

LS1POWERHOUSE

well i put a two stage on it. 150 dry and 150 wet. (BUT I WILL NOT BE SPRAYING BOTH STAGES AT ONCE) anyways, thanks for the advice. later.

and where and how much is one of those pumps?

ataylors

iTrader: (2)

This doesnt really make sense, you are going to let off one 150 hp kit then hit another 150hp???

LS1POWERHOUSE

i just think it is cool to have 2 kits on it. but if i put a pump and injectors in it, i will prob. spray 150 wet and 75 dry......