Do the 93's have a 18 or 21 exhaust housings?? I do not want to screw with the pump to much so would a aftermarket fuel pin and 3200 spring do some good for me? A 16 cm housing or HHT compressor upgrade be best to match the fuel?

 

My 93 had a 18.5 cm2

 

According to this site http://dodgeram.org/tech/dsl/Facts/dieselspecs.htm you have the 18.5, and from what I have been reading in different threads the 16 really doesn't pay to change out for us guys with the 18.5. As far as the stage III I can't answer that.

Ryan

 

If you have an automatic the 18.5 cm runs fine.

If all you're going to do is the fuel pin and the spring, the stock turbo will do fine.

 

Awsome. I would like to push more air though... but thanks for the info!!

 

As long as your EGT's are fine and you aren't hazing at full boost, there's really no need for more air. Dave's right, with the auto spoolup isn't too much of an issue (at least with the 18.5cm), and it keeps drive pressures down at higher RPM.