darthracer777 Posted November 6, 2010 Report Share Posted November 6, 2010 I'm looking at an '11GT500 that's been heavily modified---he claims 688 RWHP, which means it's putting out ~ 800 to the flywheel. Isn't that too much for the stock clutch? I was wondering if the clutch/tranny has been 'tweaked' for the SS Shelby 'stangs? Link to comment Share on other sites More sharing options...
stevedm Posted November 6, 2010 Report Share Posted November 6, 2010 SS have nothing done to those parts. They get a short throw shifter and a new driveshaft but no tranny or clutch work. Link to comment Share on other sites More sharing options...
bpmurr Posted November 6, 2010 Report Share Posted November 6, 2010 I was told the stock unit is good for 800 crank HP. However I doubt it would hold up with much repeated use at the track. Link to comment Share on other sites More sharing options...
darthracer777 Posted November 6, 2010 Author Report Share Posted November 6, 2010 I was told the stock unit is good for 800 crank HP. However I doubt it would hold up with much repeated use at the track. yes, that's what I thought. No big deal, looks like an aftermarket clutch is coming up...... Link to comment Share on other sites More sharing options...
blazeone Posted November 6, 2010 Report Share Posted November 6, 2010 I'm running that hp and have 20 passes with very stciky tires. The clutch is awesome, has not even hinted a slip. If I could get under the car I would give it a hug after every track night. Link to comment Share on other sites More sharing options...
darthracer777 Posted November 7, 2010 Author Report Share Posted November 7, 2010 I'm running that hp and have 20 passes with very stciky tires. The clutch is awesome, has not even hinted a slip. If I could get under the car I would give it a hug after every track night. very good...........what kind of 'stickies' do you run? I plan on using MT slicks. On the street, I'll use drag radials. In fact, what's the largest DR I can run on the stock (non-PP) wheels? Link to comment Share on other sites More sharing options...
bpmurr Posted November 7, 2010 Report Share Posted November 7, 2010 I'm running that hp and have 20 passes with very stciky tires. The clutch is awesome, has not even hinted a slip. If I could get under the car I would give it a hug after every track night. That's good news. My first stock clutch couldn't handle12 passes on street tires. Granted they were all on the same day but still. Link to comment Share on other sites More sharing options...
Cdvision Posted November 7, 2010 Report Share Posted November 7, 2010 I've seen several 2010/11 GT500's (some even with drag radials or slicks) make 10+ passes in a day and not have clutch failure (and a few were modded-pullied, headers etc). Improper launch technique (ei-slow release,riding the clutch out of the hole etc) can cause any clutch to fail fairly fast. Link to comment Share on other sites More sharing options...
blazeone Posted November 7, 2010 Report Share Posted November 7, 2010 very good...........what kind of 'stickies' do you run? I plan on using MT slicks. On the street, I'll use drag radials. In fact, what's the largest DR I can run on the stock (non-PP) wheels? Running 315x40x18 Nitto NT05R on CCW 18x11 wheels. Consult with the tire manufacturer for recomended rim size. Link to comment Share on other sites More sharing options...
0201212 Posted November 7, 2010 Report Share Posted November 7, 2010 I have seen some running as big as a 315 dr on the stock rim some report rubbing and some don't. I would make sure to get an adjustable panhard bar so that you can center the rear end just to make sure. Hope that helps. Good luck on the clutch, like someone else on here said it is all about driver skill some have it and some don't. Once you get the launch down your clutches should last. Link to comment Share on other sites More sharing options...
bpmurr Posted November 7, 2010 Report Share Posted November 7, 2010 I've seen several 2010/11 GT500's (some even with drag radials or slicks) make 10+ passes in a day and not have clutch failure (and a few were modded-pullied, headers etc). Improper launch technique (ei-slow release,riding the clutch out of the hole etc) can cause any clutch to fail fairly fast. Agreed, but sometimes you just get a bad one like I did. I'll be interested to see how my new one holds up. Needless to say I won't be going to the track anymore. Too much of a risk. Link to comment Share on other sites More sharing options...
Cdvision Posted November 7, 2010 Report Share Posted November 7, 2010 Agreed, but sometimes you just get a bad one like I did. I'll be interested to see how my new one holds up. Needless to say I won't be going to the track anymore. Too much of a risk. Well I read one of your old racing posts on how you rode the clutch out as to not spin the tires as much, so.........just sayin'. Link to comment Share on other sites More sharing options...
darthracer777 Posted November 9, 2010 Author Report Share Posted November 9, 2010 Running 315x40x18 Nitto NT05R on CCW 18x11 wheels. Consult with the tire manufacturer for recomended rim size. What wheel back spacing did you use? Link to comment Share on other sites More sharing options...
blazeone Posted November 9, 2010 Report Share Posted November 9, 2010 What wheel back spacing did you use? Beats me, ask John at CCW. He'll know model C10. Link to comment Share on other sites More sharing options...
BDrool Posted November 9, 2010 Report Share Posted November 9, 2010 I have seen some running as big as a 315 dr on the stock rim some report rubbing and some don't. I would make sure to get an adjustable panhard bar so that you can center the rear end just to make sure. Hope that helps. Good luck on the clutch, like someone else on here said it is all about driver skill some have it and some don't. Once you get the launch down your clutches should last. Just remember, as the back end squats, it will center up. If you put an adjustable on it and center without preloading, the car will squat and rub just opposite from what yolu are thinking. Link to comment Share on other sites More sharing options...
bpmurr Posted November 9, 2010 Report Share Posted November 9, 2010 Well I read one of your old racing posts on how you rode the clutch out as to not spin the tires as much, so.........just sayin'. Can you tell me where that is because I can't find it here....? http://www.teamshelby.com/forums/index.php?/topic/55759-took-my-gt500-to-the-dragstrip/page__p__952419__hl__bpmurr__fromsearch__1#entry952419 Link to comment Share on other sites More sharing options...
Torched10 Posted November 9, 2010 Report Share Posted November 9, 2010 I was told the stock unit is good for 800 crank HP. However I doubt it would hold up with much repeated use at the track. bpmurr---did you get your clutch fixed yet--bob Link to comment Share on other sites More sharing options...
bpmurr Posted November 9, 2010 Report Share Posted November 9, 2010 bpmurr---did you get your clutch fixed yet--bob Yes, I have another OEM unit. So far so good. Link to comment Share on other sites More sharing options...
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