couple R-154 swap questions

Grinder said

Is this a common problem? I used to race at the speedway in Vegas and I knew a guy making 850 hp 784 ft. lbs. in a supra,he would dump the clutch at 3800 rpm off the line.He said it was a stock trans.

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Not sure if it is common, but sure seems to be a hot topic on the Supra forums.

Just to make sure, this the the 5 speed, not the later 6 speed that came in the twin turbo Supras. That tranni is completely different.