well I just found out I need rebuild.before even I start the car with with new single.
sad but it's good chance to do more porting.I currently mild street port.
should get some benefit from half bridge port or i'm gona loose all the low end?

I don't wnat the dyno queen I better to be street king..

thanks.

 

what size is your turbine housing?

 

https://www.rx7club.com/2nd-generation-non-technical-pictures-198/60-1-62-1-club-post-if-you-have-one-742289/

for street king great turbo on a BP

 

.84 divided..
I thin it's good idea to bridge..

 

I think that turbo with that hotside is better matched to a nice streetport.

 

well I'll keep the current port for now.
anyway I just found I need more than just coolant orings because my rotor housings look pretty bad.

I was using RA seals and springs and I don't know that's the fator but it scored pretty good.
well I had failed OMP line some times so I couldn't blame RA for this.
anyway it still showed good compression so I'll just throw some coolant o-rings now and drive it untill dies and build better motor..