I have an 86 gxl, and i'm swapping the engine and trans with a s4 13bt. I was thinking of getting a mazdatrix driveshaft that will allow the turbo tranny to connect to n/a diff. Will my rear end hold up? Not looking to make more than 300hp.

 

Depends on how you drive. Racing always creates more stress and pressure then driving like a 83 year old lady. It should hold up under 300 HP.

 

300HP will be fine.

 

+1

 

Thats great news! Thanks ya'll!

 

some old timer to the rx7 community simply told me to keep my traction shitty, and that will be the only thing that breaks.

 

so whats the max hp a NA and Turbo diff can handle?

 

To be safer you can always have your rear end gears cryo treated and coated.

 

+1. Thats what Muscle car guys do. You'll have to dial out teh wheel hop though.

 

Will look into getting cryo treated, I plan on swapping the lsd with a kaaz 2way.