LLY: gt4202 twins

[02ilduramax]

i picked up a gt4202 a while back and am wanting to put it on my lly could i use it along with a stock turbo and where do yall buy oil drain flanges and the oil feed lines?...and for intercooler tubing would 3in 16ga mild steel be ok to use?

 

[cafryer]

What a/r housing is it

 

[02ilduramax]

believe the exhaust says 1.23 and on the front it says a/r.75

 

[IOWA LLY]

That should work fine. You can use pulse width or an external waste gate to regulate drive pressure if need be.

 

[02ilduramax]

sweet and the 3in 16ga mild steel will work as well for tubing?

 

[IOWA LLY]

For intercooler tubing, yes.

 

[02ilduramax]

alright thanks should have my trans done for my other truck this week then hopefully can start on this project

 

[quadracer37]

what size is the turbine?

 

[cafryer]

3in for itercooler pipe and hot pipe. 3.5in for charge pipe

 

[02ilduramax]

these were the numbers i got from dan@ppe.......The part # is 408752. = 76mm ind and 102 exd on the compressor with a .75 A/R 5" inlet and 3.5" outlet. Don't remember the turbine inducer but the exducer was 87mm I think with a 5" vband downpipe and T6 flange.

 

[Burn Down]

That will work just fine... That is the turbo MPI used before going to the BW475 on the base kits. MPI just used a tighter housing and gated it. Your 1.23 will work fine I would think, depends on how hard your going to push them. As stated above you may need to gate but I don't think so.

This a GT4202R same turbo just water cooled... Don't ask what happened to the GT4202

 

[02ilduramax]

i believe my turbo is an older on it doesnt have the v band on the compressor