nonnieselman

iTrader: (10)

What PSI is the fuel on these engines?

Ill be installin a nitrous kit on my buddies S-10 with a 4.3 and im just tryin to find out what jets we are goin to be needing..

Startin with a 50 shot and prob go up to a 75 or possibly a 100... depends on what my research comes up with..

Thanks guys!!!!

Blue02Hoe

I'd stick with the 50 unless he want's a really heavy paper-weight, or a cool coffee table.

Derek @ EDO

iTrader: (73)

50-60 psi

TXsilverado

iTrader: (19)

ChevyThunder17

iTrader: (45)

The 4.3? What year? If it's CPI, it's something like 80-85 psi of fuel pressure. Also wouldn't do anything to it other than drive it if it's CPI. They are the biggest pieces of **** in regards to getting fuel into an engine. Ever. Two words: fire hazard.

mcfarlnd

iTrader: (15)

i had a wet kit on my 97 full size 4.3 it was a 75 shot and it held up just fine.

nonnieselman

iTrader: (10)

sorry.... its a 2003

nonnieselman

iTrader: (10)

You remember what jets you used?

ChevyThunder17

iTrader: (45)

That was the last year of CPI. 2004 and up had actual injectors.

Mcfarlnd: You used a wet kit, no?

nonnieselman

iTrader: (10)

Central Port Injection??? CPI??

Im goin to hook my Fuel Pressure Gauge up to it today and see what it shows..

Is theirs the same as ours with the Regulator you can unhook and read the FP With no Vacumm?