I read a topic back awhile ago and i saw that someone said that the hx-35/WH1C will only work on intercooled first gens. Is that true or could i put one on my 91 non-intercooled. I would use the whole turbo (compressor/12cm housing)


thanks

jeff

 

The intake on the aftercooled trucks is larger in diameter, so you will need to get a late model intake hose or convert to the 4" rubber elbows & pipe intake. Also, you will have to make an adapter to go from the flange outlet on the compressor to your crossover pipe . . . I am not sure what the relative diameters are there.

That all said, I think that you might find a slight reduction in low end performance with the bigger compressor. I might be wrong there, though.

 

I'm wondering if maybe people are saying that because of the discharge of the compressor housing... on the non-intercooled trucks, they compressor housings have a hose-out discharge where the intercooled have a v-band discharge...

that said, it'll work fine, but you may have to get creative on the discharge...

you should be able to use your compressor housing on a WH1C, and conversely, you can use a wastegated turbine housing on your existing turbo.

Forrest

 

The housings are not interchangeable, as the later model compressor wheels are larger in diameter. That is what drives my concern for low end performance. You are correct in that the exhaust housings are interchangeable.

 

well, a slightly larger compressor wheel on a turbo with a 12cm exhaust housing is going to have a LOT more low end performance than a slightly smaller compressor wheel with the 21cm turbine housing found on the early 1st gens.