Hey guys. I am about to send my stock turbo ('91) off to Majestic Turbo to have them upgrade it. I have discussed three options with Kevin there. I did search forum and nobody seemed to talk about these compressor options.
-H3
-TO4E46 with a five-degree clip
-TO4E50

I am shooting for about 300hp at the crank. I cannot afford a full TO4 upgrade. So I am just looking for a little extra horsepower. Kevin believes that the TO4 E"46" would be my best route. I have included the compressor map for that compressor wheel. Can somebody tell me how to read this thing?

Does that sounds like a good upgrade? Thank you.

James

 

This site explains a lot of the compressor map. It has some errors, but it will give you the main idea.
http://www.gnttype.org/techarea/turbo/turboflow.html

You may also find this site interesting.
http://www.turbofast.com.au/turbomap.html

 

Any of those would probably get to your goal, but the largest comp side you can go with is a T04B 60-1 (Turbonetics) unit.




-Ted

 

Thanks for the links. I will check it out!

James