I have just bought a 79 with a turbo setup. I was told it is a T3 from a thunderbird with a T4 Compressor housing and wheel.

It is currently used as a draw through system with Rochester 2 bl. - Engine is a 86-88 6 port.

Can anyone give me a size comparison of this verses a stock S4 turbo.

I want to convert this setup to blow though but wanting to know if I should keep this or go with a S4. If those are really my only 2 choices.



-billy

 

s4

 

the t3 is to small for a s4 motor. it will choke it. you will be better of useing the s4 turbo

 

Find out exactly what T4 compressor is on the turbo you have. Depending on which it is, moving it onto a S4 or S5 CHRA/turbine could make for a very capable turbo.