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The mkiv Supra Owners Club

running a tt on a 5 speed box???


luke marshall
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The Americans seem to reckon the W58 is OK for 400-450 (US)hp in their NA-Ts.

 

You could always try the R154 from an MA70 and a 300(?) quid bellhousing from Toyota.

 

(What I've never understood is that the Australians think of the W58 as a strong 'box to use with their V8s. Surely the torque would do it no good at all?)

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You'll need the whole clutch assembly and release mechanism, maybe the slave and master cylinders, gear stick, possibly the rear mount and crossmember, and the right bits of the propshaft. You need to check what flywheel the N/A runs, too. The starter on an N/A is a different part number, this may be just because it's more powerful, to turn the higher compression N/A engine, in which case it should be fine to use the TT one still, or it may have a different pinion to match the different flywheel... You need to spend time with the parts CD's.

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