So im wondering which injector should I use.
currently I've been sitting on 60lbs injectors that have been working with my gt45 turbo crabking 14psi on the stock ls1 for now. not sure what the power is but its been driving reliable for years on stock internals, with a healthy fuel system to support it.. dual racetronix 340 pumps amd harnesses, deka 60lbs injectors, 50psi on a BRFPR with a full return system.

Now I'm putting a summit stage 2 turbo cam in it, and thinking of throwing on the 7875 billet gen 2.5 turbo that's capable of quite a bit from what we have seen from sloppy mechics. gonna keep the power under 800 since the stock ls1 internals are now gonna be the Achilles heal.

that said, I have 80lbs injectors from our friends at rhe ws6store and I also bought SEP 120lbs injectors, but im a bit hesitant on running those as I've heard some difficulty tuning those?
anyone run both and know better than me, please chime in!

just a cam hanging out waiting to find the right block lol

 

WHICH Stage 2 cam? Summit makes different Stage 2 cams for all situations.

 

sorry, it's a Summit Stage 2 turbo cam, 226/230 Dur., 113+4, .600/.575 lift

 

What's your current injector duty cycle? That will give you a pretty good idea.

 

pull these calculations off Fic just for some simple math. either one of these will work for my current setup.
I could use the 80lbs on pump to hit 800hp or the 120lbs with e85 to hit 800ish with both under 80% duty cycle in theory, even with moderate fuel pressure.

 

well for now, 80lbs injectors it is. if I swap to e85, I'll give the 120lbs a shot. I've already got preliminary tune loaded on my tablet, now just gotta finish installing the turbo so I can get the idle hashed out