View single post by StevenD57
 Posted: 03-07-2013 12:13 am
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StevenD57



Joined: 04-10-2009
Location: Hubbard, Ohio USA
Posts: 104
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 Unless you are planning on a big turbo I don't think you will be developing enough torque to exceed the capacity of the W58. Toyota spec'ed the R154 in the twin-turbo Supra cars. The NA 3.0L Supra's were just fine with the W58 torque capacities. The torque capacities I have seen for the two gearboxes is:

 W58: 300-350ftLb

R154: 450-550ftLb

BTW, Torque is what breaks gearboxes, not horsepower.

Last edited on 03-07-2013 12:13 am by StevenD57