Hi all
I'm in the middle of 13b swapping my 85 gsl. I'm about halfway done with fixing all the rust and need to decide on a turbo. The new engine is a 13b REW with a large streetport. I'm told that the g40-900 is a great option for a 13b. but I was also told by someone who has a rx7 that the pt6266 is the best for what I'm doing. I know that the g-40 is more $$ but Id rather spend more money and do it right then need to go back and buy another turbo.

For the g-40 I'm seeing $2,400 without the turbine housing

For the PT6266 I'm seeing $2,700 with a housing ceramic coating polishing as well as the T51R mod
Is the T51R mod something that would be nice to have or is it just a waste of money

 

These are the links I was looking at
https://agpturbo.com/precision-6266-...ring-gen2-cea/
https://www.maperformance.com/produc...saAmT0EALw_wcB

 

EFR 8374 or 91/9280 is the "normal" high end setup around here

 

how much power are you trying to make?

 

T51R mod is for sound only, really just depends if you care about that!

Power goal and vehicle usage would help to make a recommendation.

 

power goal is 4-500whp
and it will be mostly street driven with some track use

 

and what A/R ratio would be best

 

I'd be looking at Garret G30-770, BW EFR 8374, or possibly one of the new SX-R turbos. Somewhere around 1.0 A/R, divided.

Lots of great info in the single turbo section.