I know of a wrecker that has some low mileage DSMs in it and I was curious if and how much bigger would the 14b be compared to a Stock hitachi turbo?I would change to a 16g later but I'm curious as to how well a mitsu turbo would work on our car.any info is welcome.



Luis

 

the only mitsu turbo that would be worth anything would be a tdo6-20g but even thats small for an rx-7...unless you want to make a twin 16g or 18g set up that be intresting.

 

A TD05 is really too small for a rotary. Infact I bet it's smaller than a T2 turbo.

 

I was interested in the Mitsu turbos also. I have a TDO5H that I fished out of the trash a while back, and I'm kinda just sitting on it for now. I'm having trouble determining the turbine that it is running. I checked the ID code on the compressor housing and it gad had a couple numbers ground off and then new ones etched in overtop. When sizing a turbo for a 13B you consider it a 2600cc motor as opposed to a 1300, right?

 

Thats right. And once you think you have the turbine size figured out go a step larger.

 

OK, cool. Figuring out the right turbo for my setup will probably be a little easier now As far as going one size bigger on the turbo's hot side, is there a mathematical reason for that, or is it just a rotary-rule-of-thumb?

 

rotaries have a very hot exhaust gas. Hotter than your average piston engine. Thats why you can run larger turbos on them.

 

Plus they have very strong exhaust pulses

 

Twin td05!

 

That would be cool.