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Is there a larger A/R turbine housing with a T3 flange and 4 bolt exhaust that will bolt up in the stage 1 kit available? I think the stock one is a .77? Is there something bigger that can bolt up?
Is there a larger A/R turbine housing with a T3 flange and 4 bolt exhaust that will bolt up in the stage 1 kit available? I think the stock one is a .77? Is there something bigger that can bolt up?
JET
There are none in the same config in the Turbonetics catalog. The turbine housing used on the Stage 1 kit is rather unique.
No not exactly. They do make several turbine housings for the Stage V turbine wheel. This particular housing is unique in its internal design and outlet configuration. This would be the CLOSEST to what you need except it has a vband discharge: 20692-5 Turb Hsg,0.81,Stg 5,Tund,Vb. That is a Stage V turbine housing .81 A/R Tangential Undivided Vband. There is also a 20696-5 Turb Hsg,0.84,Stg 5,Tdiv,Vb which is a Stage V turbine housing .84 A/R Tangential Divided V band discharge. Both of them would require you replace the 4 bolt flange with a Vband setup and then they still might not fit. Only because I am unsure if the Kolkelen turbine housing used on the Stage 1 system has EXACTLY the same dimensions as the non-Kolkelen.
What is a Kolkelen housing? What distinguishes this housing? Would a housing in the 1.0 A/R range be too big?
JET
It is a specific turbine housing design. The exact details of which I don't personally know. If you look at the box the turbo came in thought you should see the tag and the Kolke after .77 A/R. I don't know what specifically is different about the inside of the housing unfortunately...As for A/R I have no idea if a 1.0 is too big. The only way to know that for sure is to get a few different A/R housings and try them one at a time on the dyno.
3.5" will never fit in there.... I dont think a 3" will even fit in there. I'm going to have to dump the exhaust through the fender like my Grand National.
Someone has a very skewed opinion of distance. Jet, just make sure you aren't selling yourself short in "other areas".
Rocks, I've been considering a downpipe modification for a while now, since I had headers in the car. If you routed the downpipe higher, over the top of the headers, and then down to the midpipe you could probably squeeze a larger pipe in there, and also clear aftermarket headers. I'm actually surprised they routed the pipe where it is and was kind of hoping it would be changed for stage 2.
Turbonetics Larger Turbine A/R ?
