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That is an amazing launch !! Those rear tires must stick like glue - what type, and at what RPM did you dump the clutch ??
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2003 Black on Black Z06 - RD Racing 4 point roll bar, Kirkey seat with Hardbar rails, Crow 6 point harnesses, track alignment, LG GT2 Coilovers, Pfadt poly bushings, Hotchkis sway bars, lowered, DRM engine oil cooler and transmission cooler, Dewitts Radiator, Goodridge SS lines, 2006-Z06 shifter, Wilwood BBK, DBA 5000 two piece rotors, LG spindle ducts and DRM air ducts, ARP wheel studs, Turn One PS Pump, Phoenix Tow Hooks
That's what is soo funny... They're standard Pirelli PZeros in a 220UTQG. I slipped the clutch at about 2800 RPMS. After this launch I quit for the day... the thought of broken parts and a depleted checking account skeered me off... Think I did a total of 8 passes and never got out of the 12s and never got faster than 118mph. Trying to get that car down that track was the most frustrating and unrewarding thing I've tried in a while...
That's what is soo funny... They're standard Pirelli PZeros in a 220UTQG. I slipped the clutch at about 2800 RPMS. After this launch I quit for the day...
Mike
No engine up front, correct? This would make lifting the front end a lot easier. BTW I would have left after lifting the front end also. You got the pic, so quitting while you are ahead was a good idea.
You're lucky you didn't break something. Those cars aren't meant to do that. Half-shaft, clutch, diff, tranny...all of them are real expensive on a Porsche...FWIW.
You're lucky you didn't break something. Those cars aren't meant to do that. Half-shaft, clutch, diff, tranny...all of them are real expensive on a Porsche...FWIW.
I'm not somuch worried about breaking it, cause I know it's a risk of running the car... I'd just write a check, be broke for a month, and have it fixed.
A side effect to that wheel stand was that this evening while I was prepping the car for Summit Point on friday, I found all 10 of the rear lug studs sitting at aboout 150#ft. of torque. I have to order some new lug studs... Normally I check them at 96#... That was some serious torque when she stood up!
I'm not somuch worried about breaking it, cause I know it's a risk of running the car... I'd just write a check, be broke for a month, and have it fixed.
A side effect to that wheel stand was that this evening while I was prepping the car for Summit Point on friday, I found all 10 of the rear lug studs sitting at aboout 150#ft. of torque. I have to order some new lug studs... Normally I check them at 96#... That was some serious torque when she stood up!
Mike
How did the lugs get torqued to 150? Surely you aren't implying that the wheelie did that.
Two weeks ago I returned the car from the last track event and
i haven't touched it since then... I torque my wheels to 96# ft. and don't touch them. I had maybe 6 miles on the car before Monday, and I'd retorqued them on Sunday night to 96#ft. so, yea, I think that wheel stand, the repeated wheel hops, and other related launch issued served to impact those studs. Unless you have another solution, I'm clueless as to another explanation.
Two weeks ago I returned the car from the last track event and
i haven't touched it since then... I torque my wheels to 96# ft. and don't touch them. I had maybe 6 miles on the car before Monday, and I'd retorqued them on Sunday night to 96#ft. so, yea, I think that wheel stand, the repeated wheel hops, and other related launch issued served to impact those studs. Unless you have another solution, I'm clueless as to another explanation.
Mike
I guess my next question would be as to how you determined them to be 150? The torque required to break them loose is not the same as the amount of torque applied to tighten them.
I guess my next question would be as to how you determined them to be 150? The torque required to break them loose is not the same as the amount of torque applied to tighten them.
Although you're correct, it does take more force to loosen them, my Ingersol Rand cordless impact never has issues breaking anything loose that has been tightened to 100-102#ft. of torque. It wouldn't budge these. I checked them at the clockwise, then counterclockwise for each stud as I was trying to find out what they were torqued to. Based on what I know of bolt stretch, these studs shouldn't take 150# from a torque wrench to break free... It can't be good for them. Regardless, I'm replacing them.
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Me lifting the front wheels on takeoff...
