I have a buddy that is going to start pulling and wants get his truck set up, he has a HX40 turbo on it and I was wondering what class of turbo that is. 2.5? 3.0? I have no idea. I take it the class is the size of turbo inlet is that correct? Thanks for the help!!!

Dustin

 

Hx40 is well under the 2.5 limit.
64mm is right at (or under) 2.5 and the Hx40 inducer is in the 60mm area.

 

Thank you Sir

Dustin