Hi, does anyone know if a Garrett CHRA assembly will fit into an S5 turbine housing? It has a 60-1 compressor wheel & a P-trim turbine wheel. I can re-machine the turbine housing to fit the P-trim wheel but didn't know the diameter of the CHRA where it goes into the turbine housing or if it would go into the turbine housing too far. I was running a Stage 3 hybrid but it has a damaged turbine wheel & was thinking of making my own hybrid this way. I can't seem to find a stock turbine wheel anywhere. The CHRA is from atp turbo http://www.atpturbo.com/mm5/merchant...egory_Code=GTB This way I wont need a new downpipe and manifold.
Thanks Davidp

 

Also if anyone knows where I can get a stage 3 or P-trim turbine wheel to fit the stock turbo, I would appreciate it if you can let me know. All I can find is wheels that say they are big shaft. I could just repair the turbo I have but thought I might want to go ball bearing. Thanks Davidp

 

yes it bolts on with some minor clearancing for the oil return line, and the coolant ports are 14mm vs the stock 16mm. i did this about a month ago. gpopshop did the milling on my exhaust housing to fit the p-trim wheel

weird thing is i actually get slower spool with the BB center vs the stock journal bearing

 

I picked up a used turbo in the for sale section, tore it down and it appears to have been recently rebuilt. First I'm going to put my compressor section on it and try that. But I'm still looking at all options. Maybe I'll try the CHRA thats available with the stage 3 turbine wheel based on your results. It's not much bigger than stock. http://www.atpturbo.com/mm5/merchant...egory_Code=GTB Thanks for the reply. Davidp

 

you dont want a small turbine wheel in a hybrid, even with good porting you end up with boost creep unless the wheel is clipped. a decent sized wheel lets more exhaust past, which helps control creep. i still get a little creep with the p trim but it is really isnt too bad

 

If you want a decent turbine wheel i am selling a brand new F 65M TURBONETICS exhaust wheel(10 blade taller tip wheel)also have a TURBONETICS ball bearing CHRA for sale all for cheap.

 

I really hadn't thought much about boost creep, I was using an H trim compressor wheel and it was running out of breath at high rpms. When I put it back together I'm going to a 60-1 compressor wheel, if I have a problem I'll have try the P-trim turbine wheel. Thanks for the tip. Davidp

 

I'll keep you in mind. I'm not familiar with that turbine wheel. Is it close to the size of a P-trim? What are the wheel sizes on the CHRA? I'm looking for something about the size of a 60-1 with a P-trim. I should have the used turbo I just bought back together this week and I'll have to see how it runs.