VINCE

iTrader: (1)

If so what gas are you running? What percentage is pump and what percentage is race gas?

860 Performance

iTrader: (1)

700rwhp/700ft-lbs here, pump gas

VINCE

iTrader: (1)

Nice, but your compression is low. You can do that easily.. LOL!!

JuicedSS262

Not yet.

Z284U2TRY

iTrader: (5)

Your compression seems fine for a 300 shot or so as long as your engine is built with correct parts. I would run race gas on a indp fuel system direct ported.

VINCE

iTrader: (1)

The engine is built for it. I have upgraded my fuel system and on a 200 shot it still maintains over 60 psi of fuel pressure. I am curious to what people run intank..

Beast96Z

iTrader: (21)

I plan to do it on straight 93. 11:3:1 compression and a 200 shot.

VINCE

iTrader: (1)

I hope you are running an external fuel noid with race gas going into a direct port OR planning on decreasing a boat load of timing.

Elite_Hot_Rod

Vince my high compression 408 made 723RWHP and over 800RWTQ, I run 114 octane.

VINCE

iTrader: (1)

Wow!!! So you tuned it for straight 114 octane? How much of a shot?

DERTY

I tuned mine for straight C16, it worked out very well and was plenty safe. I could have retuned it on a lower octane fuel. But it didn't matter as the car was fine the way it was.

koolrayz

iTrader: (26)

Im going to try running pump gas on a 300 shot with 114 in the enrichment fuel cell. It will be tuned arond 12.5 to 12.8 N/A and 11.00 on the juice so Im hoping the extra race gas will be enough.

DEEZ98Z

iTrader: (5)

I was told that it is bad to run a different octane in your enrichment cell.... suppose to cause hot spots. Has anyone heard other wise? Oh and I plan on running 11.0-3 to 1 CR with a 200 shot on pump gas.

Beast96Z

iTrader: (21)

I wasn't planning on it. It'll be feeding straight off the aeromotive fuel regulator. We've got guys here spraying 175 on 12:5:1 with no more than a msd timing retard. Hopefully the timing tuner can take care of all of that on mine.

Navy David SS

iTrader: (13)

I'm running - a "good" guess - 600+rwhp and almost 700rwtq. 104 unleaded on a 200 shot of TNT power. I have heads/cam, stock bottom end, RaceX drop in fuel pump. The SS is dyno tuned via LS1Edit. Looking at bumping up to 250 jets this spring. IMO as long as you dyno tune for air fuel and be smart about it, 700/700 can be done - even on a stock bottom end.

David

VINCE

iTrader: (1)

I will play with a 50/50 mixture and see what happens..

next

iTrader: (9)

Are you high octane leaded guys using a different 02 sensor or none at all?

DERTY

I use the stock sensors, but replace them after every several races. I also keep a few around at the track.

taner

iTrader: (6)

big shot = c16, small shot 94 or 104 if i have it laying around, motor loves the good gas 11.0:1 compression last season. Derty said it well....SAFE, i want my motor to survive it is working

Ron@Vengeance

iTrader: (51)

Vince, my old setup made 654/790 on a TNT 200 direct port. 93 in the tank and 103 in the DP cell. New setup will be C16 in both