matty

Well yestereday i went down to KD rotary for a dyno tune then went to Englishtown raceway. My car has intake, dp, resonated mp, RB dual tip cb, and the power fc. At 10psi i was making a consistent 275rwhp. After three runs we uped the boost to close to ~12psi (.80 cm2) and we generated 296.5 rwhp. I must say i am pretty happy with those numbers. However my drag racing i wasn't too happy with. Keep in mind that this was my first ever time at the drags.(take a look at those 60' times):

1st run
r/t 1.108
60' 2.614
330 6.357
1/8 9.239
mph 87.62
1000 11.680
13.739
mph 109.72

The next run was definatly an improvement but still not getting off the line like i should be (i was definately alot calmer)

2nd run
r/t .789
60' 2.365
330 5.981
1/8 8.851
mph 87.49
1000 11.290
1/4 13.338
mph 110.33

I was thinking that a trap of 110 mph is indictivive of a 12.xx run for an rx-7. If i lower my 60' times will i be there. My first run i launched at 4000rpm and i didnt move of the line after about 20' i had to shift to second to get traction. The second run was not a smooth launch either. i was racing some vtec integra. this time i launched at about 3250 rpm i still got spinage and wheel hop though...alot....rather than shifting to second to get traction i let off the gas for a sec then hammered it again. Its funny my fiance videotaped the race and you could hear me let off the gas as my blow off valve sounds. I think i need to try dropping the clutch at 3000rpms and rather than mashing the pedal simply ease into the gas a bit. the wheel hop and spin is killing me.
what do you guys think?

matt

Import Convert

what kind of rims and tires are you using? I would think that with that kind of RWHP you really should be in the 12's. If you are still running stock rims I would suggest upgrading. You will need it eventually, especially if you keep modding your engine.

matty

stock rims and tires.which are crap. I agree 300rwhp should equal 12.xx.. It was my first time ever drag racing my car....my 60' suck.

lane_change

iTrader: (20)

Did you race at 10psi or 12psi? Are you running on the stock clutch?

matty

12psi...stock clutch.

amp

iTrader: (50)

stock wheels are light ..
its not crap imho... if you want to maintain street tires - may i suggest a good set of tires with a slightly wider patch of 245/45/16

93TTRX7

don't dump the clutch...baby it like i do

matty

i was refering to the tires.