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Van turbo swap

Wasn't someone playing with new wheels in the gm line? Is the problem wheel design or the shape of the housing, or both.
 
I think its that the GM X is physically to small to perform. Not sure on the wheels
 
Yeah turbovan man bought a wicked wheel for the gm-6, which is what is in all the vans and hummers, at least pre-p400. I know he said the better wheel help a little on the top end, can't remember what else it did off hand. I also would like to find out how else to let one breathe a little better on upper end.

Definitely get a 4" exhaust in there. I've seen that difference in a van and a hummer and I have the parts to do all mine except the muffler.

I spoke to Dennis a couple years back about an ATT, but the 95 and older hummers would have to have a small body lift, and I'm a whined about that. You might talk to him about that in your van, It will pay for itself in fuel savings, then all the power added on is a FREEBIE!

If you do going to a different turbo, PLEASE post it here. I would love to see any other options. I am thinking of educating myself more to learn what improvements I could make to this unit to help it out.

What re you looking for, lower end- upper- or all of it?
 
Do you have a factory turbo van already? If yes, options are severely limited unless your good at fabrication. The stock turbo is a turd due to a small compressor wheel and small ar for the exhaust. I did put a billet compressor wheel on a customers 98 and he tows heavy, he noticed a bit of improvement.
The only other way is to completely redesign the stock setup which can be done but you'll need to , mount a regular turbo back there, redo the up pipes and down pipe, fabricate new drains and the easiest part, a new oil feed.
 
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