Well 9:8:1 up to 20lbs of boost with octane. Check sig for pump 91 octane Sorry I cant post times.. track is far away and the po po is plenty.....

 

I am running 8:5.1 with 15 pounds of boost with a S85 turbo on a LS2 built bottom end. No meth here. I am seeing 717rwhp with this setup.

 

street cars are great between 9.0 and 9.5. I though 6.0litre LS2s were about 9.6:1. Very popular to turbo!

 

8.6:1 here . I think MightyMouse runs like 8.1 with his 88mm.

 

15 deg of timing and 112 octane ....we were planning on high boost but never got there on the dyno which is why i had the 112 octane:

7 psi =720rwhp dynojet
9 psi=780 rwhp dynojet

at the track it went 9.59@144 on 12 psi...3950# raceweight

full boost is at 5000rpms at the track....takes 1 sec to get there from the starting line leaving at 3000rpms on the 2 step

 

8.6:1 CR, 15psi, 16* timing, 93 octane

 

Thanks, those are the numbers Im looking to make. I dont think Ill see past 12-14psi. I do more racing off the track so I think Ill go with a 1.1 A/R. I think are raceweights are pretty close also.

 

I've got about 11.2, and I'm looking at running straight methanol with a large-frame turbo on stock cubes.

 

I'm right around 9:1

 

I just wrote up an article for GMHTP... 2005 GTO, 403 cid, 8.6:1, A4, hitting 680rwhp on a Dynomite dyno using 91 pump gas.

 

Can you run 10:1 if you limit your boost 9lb or 10lb?

 

look up Cablebandit, I think he said 10.4:1 on his S488. Thats about how my build will end up.

 

8.8:1 347 T76 eboost2 is showing 17psi i need to change the wastegate spring out and cause it wont go lower than that, lol

 

8.5-1 383 ls1 s91 turbo 20psi on c16 = 900+rwhp,875+rwt