2g: sm 16g on stock fuel syst.

[mitsugsx95]

I just installed my small 16g and was wondering what would be a safe boost to run on it with the stock fuel system? I have already tried searching, so dont just give me "search". I know that 12-13 sounds about right for the stock system. I have a walbro 190lph coming too. What would be a safe boost to run with just an upgraded fuel pump?

 

[CanadianTSi]

12-13 sounds good for now.

With the 190 pump you could probably do 15psi safly

 

[mitsugsx95]

Should i even run it past 14 psi with the stock injectors? Im sure that even at 13-psi it would pull a lot harder than the T-25, but i havent got on it yet due to a broken wastegate acuator.

 

[Thalomos]

Friend of mine was running 15psi on his big ported 16g with stock injectors with no knock (only fuel mod is 255lph pump)... and i think he's running now at like 17-18psi with 3-7 counts of knock.... INj Duty cycle is pretty high though.

 

[greyforestgst]

id say 15 is safe

fuel cut will defend you from melting things

 

[NewB2dsm]

If you have full exhuast i would say 12psi max with stock pump. I was running 10psi on my sm 16g with a 190 pump and my egts were really high. Now i have full exhuast and i can do about 16psi safly. Just wait a little. And my 16g pulled harder than the t25 at 11psi than the t25 could at 15