on my ls im putting spray on,maybe just 50-75 shot,would it be ideal to raise the comp. to handle it better?head gasket pistons etc...

 

keep stock compression and run a 60 shot with your fuel pressure set at ~45psi @ WOT, went through 4 bottles on mine, still runs strong......anything higher, bigger injectors, fuel pump are needed as well as backing off your timing a couple of degrees.

 

would 350cc injectors work? or should i go a lil higher?

 

for a 60 shot, stock fuel system is fine, just turn up your fuel pressure a little bit ~45psi @ WOT.

if you want to go with a 75, i would reccommend 310cc saturated injectors with a walbro 255lph and fuel pressure cranked up to 50psi @ WOT, also, back off you're timing 2 degrees, you'll be fine.

 

you can adjust stock FPRs?didnt know that..i think ill be runnign a 60 to be safe ive got over 100k on the b18....how would i adjust it?

 

But one mistake Josh made, if you run the 310cc injectors, there is no need to further increase fuel pressure... With 310s, stock fuel pressure should be fine, just get an AFC or some other means of tuning to make sure you have an adequate supply of fuel... Test injector duty cycle on the spray, and if they are above, say 85% or so, then you should go ahead and slightly increase fuel pressure....

 

thanks alot for the help guys,i have a lil better idea of what i need to get set up.when it comes to the bottle.idunno much.-Greg

 

fukk that im gettin my ls next month and most my boys here in orlando with their stock ls's been runnin 100-140 shot on theirs and their styll stock wit fpr /....when i get my ls im spraying 100 shot on mine so...shyt bolt up 100 shot and watch u go fast