What kind of times to expect with 450rwhp
07-24-2012 | 06:58 AM
#21
Don't even get me started about the dyno sheet... haha the "tuner" I went to basically only changed the spark tables, and some idle tables from a stock 6.0L tune. He didn't make any changes to VE, MAF, injector data, ect for a motor with 40 more cubic inches, better flowing heads, and a decent size cam. It ran like complete **** when I got it off the dyno and for the next month or so until I figured out HP Tuners. When I got a wideband on the truck, the afr was mid 14's under WOT..
It made 435hp and 400ftlbs with his tune on it. I haven't been able to get it back on the dyno since. Sorry for the RANT but I will post that bullshit graph up.
All of those are great suggestions Pittman! I currently have 3.42's so those won't help much. I will start shedding weight everywhere I can think of before August 18th. I really hope I can get some dr's before then.
It made 435hp and 400ftlbs with his tune on it. I haven't been able to get it back on the dyno since. Sorry for the RANT but I will post that bullshit graph up. All of those are great suggestions Pittman! I currently have 3.42's so those won't help much. I will start shedding weight everywhere I can think of before August 18th. I really hope I can get some dr's before then.
07-24-2012 | 10:23 PM
#22
I ran some 7.20's at 96mph with 504rwhp and a clutch in the Gibbs truck. Never got a 60' better than 1.80. Truck weighed 4250 with me in it. 5.13 gears...
That should equate to mid to low 11's on motor. I think with a gear change you should be low 12's..
That should equate to mid to low 11's on motor. I think with a gear change you should be low 12's..
07-24-2012 | 10:44 PM
#23
by the way thats on a stock 6.0 shortblock
07-25-2012 | 12:24 AM
#25
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TECH Senior Member
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rwhp and times in sig. get the truck weighed and if that was my 408 and only put that down id be pissed. your stall is to small and the cam could be better bu thats me, drop some weight, i have a 408 with same ls3 ported heads and putting down close to 600 to the wheels but then again its a different kind of animal
by the way thats on a stock 6.0 shortblock
by the way thats on a stock 6.0 shortblock
I wouldn't ever run a higher stall or a bigger cam in a daily driver. That's just my personal preference. I'm interested to know what kind of change you would make to the cam though?
Those are great times. Keep up the good work and let us know what the 408 runs.
07-25-2012 | 10:28 AM
#27
Is the CAM in your SIG a Comp grind? 614/624 lift? If so, that is the same cam I used in my 11.5 to 1 370 with LS3 heads. It made the 500whp. Granted the only stock internals in that motor were the crank and rocker arms, but a 408 should do the job much easier.
