Trans/clutch options for 860hp Cobra?

[marcocsx3121]

The clutch should be OK, since I'm running a McLeod twin in my Corvette at 798 hp at the wheels. While I can't comment on the TKO, I would assume that the "street" tires would act as a safety valve and blow off before much damage could be done to the drive line.

[patrickt]

Originally Posted by marcocsx3121

While I can't comment on the TKO, I would assume that the "street" tires would act as a safety valve and blow off before much damage could be done to the drive line.

If "x" hp/tq will break your street tires loose, then all you really need for a clutch is, say, "x" plus 20%, right? Right now, with my measly little 475HP, "weak sister" FE, if I'm just slowly going down the street, or parking lot, and I give it more than half throttle, my Yokohamas just break right loose and spin and my POS Centerforce clutch holds just fine. Sooooo, if I had an additional 300HP on my engine, why would the situation be any different?

[blykins]

I offer "prepped" TKO 600's with about 700-725 lb-ft capacity. I would go this route with a McLeod RST clutch kit. I put this very combination behind my big inch Boss 9 engines with around the same hp/tq ratings and much heavier cars.

[ERA Chas]

Originally Posted by patrickt

Right now, with my measly little 475HP, "weak sister" FE, ...

Where did you find 75 more HP??

[patrickt]

Originally Posted by ERA Chas

Where did you find 75 more HP??

It always had it... I just downplay my numbers.

[patrickt]

I remember having a conversation with the ERA gang about the size of the u-Joints, both on the drive shaft and the four on the ERA rear. The long and the short of it was that the rear drive shaft u-joint was smaller than the front because, if something went really, really wrong, you would prefer to have that one blow rather than the front -- 1310 verus 1330, if I recall.... So, putting in a "monster" clutch, when the tires break loose well below "moderate" clutch holding levels is like putting in a monster front u-joint on the drive shaft, while the rear u-joint is still a 1310. No?

[scottj]

Originally Posted by patrickt

If "x" hp/tq will break your street tires loose, then all you really need for a clutch is, say, "x" plus 20%, right? Right now, with my measly little 475HP, "weak sister" FE, if I'm just slowly going down the street, or parking lot, and I give it more than half throttle, my Yokohamas just break right loose and spin and my POS Centerforce clutch holds just fine. Sooooo, if I had an additional 300HP on my engine, why would the situation be any different?

You don't say what gear, but if a top gear roll-on breaks the tires loose, then yes the POS Centerforce should still hold... in that situation.





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[paulmartin]

how can anyone handle 850hp in a cobra..?......
oh yeah its the guys who end up upside down in a ditch or in a tree