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I think I am running way slow here, just wanted to know if you guys think it is all to blame on wheelspin, gearing, or a poor tune. Here we go:
385ci 87+ Gen1 SBC:
4.04"x3.75"
.005" in the hole
.036-.038 quench (I can't recall specifically)
9.5:1 CR
Sportsman II heads:
2.02/1.6
smoothed chambers
deburred/gasket matched runners
5-angle valve job
smoothed valve guides
bowl blending
short turn work
Comp Cams Customer hyd-roller:
Lobes are XFI I#3015/E#3016 (yes, both are intake profiles)
274/280 @.006, 224/230 @.050, .544/.540 gross lift.
It think it was ground on a 113 LSA
Built up 700r4 w/ 2400 TCI stall
B&W 9-bolt w/ 3.23s (3.70s sitting in my room for the spring).
I think I had installed the cam 4 degrees retarded, as my powerband seems to be 2500-6500. Depending on how she feels with the 3.70s I am thinking about advancing it back up 4 degrees next year, but since I have traction issues as it is I'm not sure yet. I still have the stock rims and tire-size, running Potenza RE750s, I'm paranoid about running bigger tires and blowing the 9-bolt. I also noticed that my converter seems to actually be stalling closer to 3000 RPMs, which I am guessing is due to the crap 3.23s (thoughts?)
At the track I had almost no traction through most of 1st, spun for a few tire revs into second and barked into third. I've only gotten two runs in on this motor/trans and didn't pay attention to my RPM at the finish line, but it was probably early-midway through 3rd.
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Boasting about your turbocharged/sprayed 2.0 liter Honda being fast is like Pee Wee Herman popping a couple of Viagra and then claiming to boink like a porn star...except you are still not getting laid!
Re: Just another "how fast should I go!!?" post :-)
That trap speed is pretty indicative of a mid to low 13 second run, usually if a low time is due to wheel spin your trap speed will be way up there. I run mid 13s at anywhere from 99 to 101. You may have something up with your tune, how heavy is your car?
__________________ "If you've ever seen the inside of a TPI plenum, it was designed by cocaine users of the 80s looking for something cool." Ed Maher
Re: Just another "how fast should I go!!?" post :-)
"that trap speed seems REALLY low based on your mods...."
I didn't think about the elevation but yeah that and the weight... really though even if the car weighed 3600 pounds and was high up, that's pretty slow. Maybe the cam retard is killing it? Also don't wory about tearing up the 9 bolt, they're pretty tough just keep good fluid in them. ET Streets with about 20 PSI in them will hook up better than any street tire and not hammer the driveline.
__________________ "If you've ever seen the inside of a TPI plenum, it was designed by cocaine users of the 80s looking for something cool." Ed Maher
Re: Just another "how fast should I go!!?" post :-)
Thanks for the replies guys. The track isn't far off from sea level, (Thompson Ohio) so I doubt that matters. I would estimate the car at being about 3300lbs. Assuming good traction I was expecting more like mid-to-low 12s from this combo, but to get that I also figured my MPH would be a good bit higher as well.
427 SBC
