Handing a 5.0 his ass via a 7200lb truck

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Nov 30, 2006 | 05:05 PM

#11

Whippled 496

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From: Lake Shore, MD

Quote:

Originally Posted by DanaliHD

that's a great 60'. I'm pretty sure my best was in that range also. Just out of curiosity, did you have the truck weighed? I just can't see how the 8.1L could possibly weigh that much more than my 6.0L. My race weight was 6140lbs. That was no spare, no tailgate, no side steps, no tonneau cover.

Pump up the boost on that thing for god's sake, lol. with proper tuning you could EASILY run 10+lbs boost. I ran 15lbs for a year with no problems. I didn't run into a problem until i had a voltage issue and my MAF went all whacky on me. I tried switching to 2bar speed density and my VE table was all f'd up but i dragged it anyway. Bad idea. lol

You should have no problem getting a low 13 slip. I ran 13.06 @ 102 with a 1.9 60' and i coasted throuugh the finish line cause i spun the crank at the 1000' mark. OOPS, lol.

I am basing that weight off what other 8.1Ls i have heard of weigh in at. I also have the spare in place, the tailgate on, the back seat in, full length steel step bars, etc. I am seeing about 7-7.5 psi when i punch it, then by 3rd gear Im around 6.5-7psi according the the gauge. My problem is if I add any more boost i am going to have to upgrade the fuel pump and injectors as im at 107% IDC now. Im not quite ready to make the upgrade just yet because i dont like the fact that i have heard horror stories about trying to tune the 60lb injectors AND the fact that there is not a "drop-in" hi flow pump for our trucks yet (suppose i could go with the inline pump though). I dont want to hack up the fuel basket to make it work, someone has got to be working on a drop-in i would imagine.