willizm

iTrader: (10)

So I have my tc78 single turbo goin on a forged ls1 (stock cubes) and plan on pushing mid high teens in psi and aiming for 700-750whp. I have the lonnies dual pumper setup and some 60lb injectors. Talking to Lonnie he thinks I will be fine with the 60's, but most others I talk to say go 80's. I trust Lonnie to know these setups pretty well, but his concern is me havin idling issues with the 80s and he's seen 60's on 800+whp builds. Also he mentioned that the bigger bottleneck isn't the 60's at that power level, but the fuel lines and rails. What do you guys think? I've been debating it back and forth.

HydroStream6

iTrader: (16)

Either will work with gas. If you already have the 60s I wouldn't switch.

Now if you go E85 you're going to need 120+...

willizm

iTrader: (10)

Yup, I'm staying 93 octane so higher flow needed for e85 will not be needed in my build. Has anyone pushed the 60lbers pretty far past 700whp?

01Z28Camaro

With my last setup, I was seeing 100 - 110 duty cycle at 14 psi with h/c/i 408 with pt88. I think once you turn up your turbo you will be past the safety you should have. I upgraded to 80s, just for the reason I didn't feel like messing with low impedance injectors.

98Z28CobraKiller

iTrader: (17)

I was seeing 92-94% IDC with the 80's running them at 80psi under boost to run an 8.9 @ 3850ish raceweight which is in the 800-850 rwhp range if I'm not mistaken.

99mongooSS

iTrader: (4)

For 1000 I would go with 120's...Im using 160's in my build and im only trying to make 13-1400rwhp.

LS1RedZ

iTrader: (19)

60s willl be fine, but 80s would leave a little room to grow IMO.