Another 78/75 goes 9s
00 Firebird Formula
Stock bottom end LS1
Patriot Stage 2 ls6 heads
Summit stage 2 turbo cam
Ls1 intake
80lb injectors - (2) walbro 450s intank
OG VS racing cast 78/75 - 3" bumper exit exhaust
Th400/brake
PTC 9.5 15-0 sprag less
MWC 9", 3.50 gears
5 year old MT 28x10.5 stiff wall slicks
Terminator X
The car is running on e85, 14psi and I just double-checked the logs 12.5* of timing.
1st pass was 3000rpm 2-step 0psi launch off the brake
2nd pass was 3000rpm 2-step 1psi launch off the brake
3rd pass was 4000rpm 2-step 10psi launch off the brake
4th pass was the same as the 3rd just backing it up
1st pass
2nd pass
3rd pass
4th pass
What is your RPM through the traps with the 3.50 gears?
Assuming the fueling is good, it sounds like you can crank some more timing in it to run even quicker
Duty cycle is 80% - I think I'm close to tapping them out. I could play with the alcohol content and push them a little further- fuel is reading 74%, so 60-65% would give me a little more to work with.
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I love how no one has any love for the sbe ls1. Let's say this one owes me nothing and I have an L33 ready to go. I'm not saying it'll live forever but it's definitely not on borrowed time.
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Just a precursor to more boost....

Congrats on the 9 second pass!
Congrats on the pass, now stuff the L33 in it, and sell that LS1.










