On a stock 20B, what is the most boost someone could safely run using a probperly sized single turbo. Of corse tuning has to be good, etc...

 

Better yet, does anyone know whats the most hp a stock 20b has made on stock ports?

 

PM 20b 3rotor or RED RX7
20b 3rotor has a gt42 making nice power at 8psi tuned by S.K. and RED rx7 has some sort of a t72-t76 setup making 638rwhp at 13.xx psi.
the other thought is to ask the aussies http://ausrotary.dntinternet.com/forums/index.php

 

My engine is stock, from japan with no rebuild. It made 403rwhp at 8psi. When spring comes i want to see what it does at 15psi.

 

My 20b with stock ports and 13b exhaust housings made 587rwhp at 1.25bar. This was with a greddy t88-34d. I imagine it will be good for a little more with some better tuning at 1.4bar. I was recomended not to boost over that by a couple of Japanese shops.

-Destin

 

I think RED-rx7 has a side ported motor.

-Destin

 

Yep his is ported