LT1-LT4 Modifications 1993-97 Gen II Small Block V8

MT drag radials/launching rpms

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Old 04-09-2009, 10:08 PM
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Default MT drag radials/launching rpms

what are some of your guys 60ft times. and what tire pressure are you running.
im pushing 460 RWHP. got it dyno'd today out in sarver pa.

also i was wondering what rpms u guys are launching at and getting a good hook up.
Old 04-09-2009, 10:34 PM
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Stick or auto? What size MT?
Old 04-10-2009, 12:13 AM
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There are 7 second cars running 1.2X on drag radials so it's almost a moot point to ask this question. You need to look at your setup and see what works best for it.

Try, try again will work best. I've seen guys on stock suspension with 255/50/16 BFGs turning 1.5s all day on this and other boards.
Old 04-10-2009, 06:55 AM
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I had a 3600 Stall with 3.73's and a set of 275/50R15's on 15" Draglites. I would put it to about 1200RPM's then smash it to the floor when the light turned green. I was lifting tires and cutting mid 1.5 60ft's consistantly.

Now with the T56 in it I see it yanking up both Tires easily, I'd launch it at 4500 if I was racing it.
Old 04-10-2009, 07:57 AM
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I launch just above idle with 275/50/15 MT d/r with 18psi and it gets 1.51 60's
Old 04-10-2009, 02:24 PM
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i have a T-56.
a 383 stroker built by golen engine engine
9 inch rear.locker
275/50/15MTs

well from what i see above i should launch about maybe 3000 and 18-20 psi?
Old 04-10-2009, 08:09 PM
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How about a full bolt-on car with 255/50/16's, stock suspension, and a whiney rear
Old 04-10-2009, 08:44 PM
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you'll bog at 3k. i'd say start somewhere around 5k
Old 04-11-2009, 02:31 AM
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Originally Posted by I8ASaleen
How about a full bolt-on car with 255/50/16's, stock suspension, and a whiney rear
Same question, but cam-only???
Old 04-11-2009, 11:07 AM
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I spun the hell out of my 275/50-15 MT DRs at 16psi with a nice burn out leaving at 4k, but the track was not there to hold it. Cant wait to try it again!
Old 04-11-2009, 02:39 PM
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well drag radials are recommended to be 18-22 psi so you guys need to adjust from there just do 60ft passes and adjust psi till you get a better 60ft time....if you feel it spin go down 1 lb try again....with nittos you have to do a bad *** burn out atleast for 10 seconds i have noticed with the m/ts i have done them for 5 secs and they hook and book...
Old 04-11-2009, 04:36 PM
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With experience from last night my 255/60-16 were at 25psi(drove to track on them) and didnt adjust them... did about 5 sec burn out and rolled out.. set at 5k and ALL CLUTCH Dead Hookin! BUT.. I will say this..
I NEED A CLUTCH TODAY....lol.. Long time overdue..
And those were only 1.92.. I have cut a 1.65 tho.(cam only btw)
Old 04-12-2009, 05:24 PM
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launched at 3500. 16 psi. cut a 1.73 60ft.
12.28@112.7
best run^^
was in the 12.4s most of the day with 1.9 60fts
not bad for the first wk
Old 04-12-2009, 05:25 PM
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also the car is running rich went to stumps garage in pinegrove pa yesterday and only got 399rwhp/396 goin again next wk for a tune bryan herter will be there. from pcmforless.

thanks guys for the info



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