Aright guys..need help...

I have an 08 silverado 5.3 that is getting procharged next week..
I was told by a tuner that I'm going to need a different map sensor and boost a pump..

What do u guys think? I have an 8lb and 10lb pulley..

I would really like to go with the 10 lb pulley..please help

 

Your stock maf will be fine. Your stock fuel pump wont be... you will most likely need an inline booster pump or an intank walbro. You may also need injectors

 

i also have a set of siemens deka 60# injectors..

 

Gonna need a GM 2bar map and I would look into the Racetronix fuel pump modules. I just ordered one and they are a complete drop in with all new sensors and everything.

 

I also got a 08 with a 5.3 and a P1SC1 @ 10# and and is running fine with the stock pump. Also didn't change the map sensor. What size are the pulleys that you have? You can't tell the boost you will make by the size of the pulley unless you install it. I got a reichard racing 3.6" that makes 10-11# at 5800+ rpm.

 

If it is a flex fuel, you might get way with the stock injectors on 8psi.. You should get a inline pump for safety.. The TB, MAP will be fine.. best bet is to put a FP gauge, AFR gauge in there to keep a eye on things..

 

i have a 4.0 and a 3.6..

 

its not a flex fuel and i have aftermarket injectors..

what type of inline pump u recommend??

 

I have went to a big intank pump, but a inline 255 walbro should work for 9-10 psi..

 

Does anybody know which walbro 255 pump (part #) do i need to swap out the oem pump in the tank?