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Lets put it a more logical way - why do you want to go with the Avo .73a/r housing when there is a housing option which is proven to get the most out of the GT3076R which comes with the turbo? For all I can tell you want to do it just because, because there is no logical reason I can think of. The turbo comes with the Garrett housing, its easy to get a dump pipe made up for it, and most importantly you KNOW its going to work.

Not saying the Avo housing won't - but why take the more difficult and expensive option when there is a known quantity? It doesn't make sense to me.

Thank you for you putting it in a more logical way and not just speaking fir the hell of it.

I was aiming at .73 in an attempt to get a balance between the more responsive .63 and higher flowing .82. Also keep my dump pipe.

Edited by ShiftyTys

If you were thinking of a GT3076 and wanted something in between .06 and 0.8 for a mix of response and power, would a 3071 in a 0.8 housing fit the bill? Pretty sure there were dyno results recently posted that had 270kw and really good response?

Is this the Gtx series ur referring to? Cos yeh I know that's another option. May be leading that way....

I was aiming at .73 in an attempt to get a balance between the more responsive .63 and higher flowing .82. Also keep my dump pipe.

OK. For what its worth, I feel the difference (having had both) between a .63 and .82 is minimal - I run a .82 and don't feel robbed of down low, it has a very nice power delivery. If you are really that worried about a bit of a mix, just get an HKS GT3037 with .68 housing.

I was aiming at .73 in an attempt to get a balance between the more responsive .63 and higher flowing .82. Also keep my dump pipe.

You can't directly compare a 0.73 non-native housing to a garrett housing. It is based on a ratio and it won't be same when you compare housings.

You can't directly compare a 0.73 non-native housing to a garrett housing. It is based on a ratio and it won't be same when you compare housings.

Yeah look I think I'm leaning towards. Gtx3071 with .82. I appreciate your advice regarding 63 and 82.

Have ordered gtx3071 .82.

Currently running :

Link G4 ecu ( No AFM)

Front mount

Turbo back 3" stainless zorst

Gizzmo IBC boost controller.

Wallbro 550hp fuel pump

Custom fabricated airbox.

Valeo sports clutch (expecting that to go soon after turbo installed)

191.4 rwkw at 13psi

Getting:

Gtx3071 .82

Fuel rail

Injectors (ready for e85 but not using yet)

Aiming for about 260rwkw.

Sounds like a defect/EPA waiting to happen mate, really hope you don't get pulled over...

You should make 300rwkw on PULP though either way. 260 is rather conservative and a normal GT3071 will do that.

Awesome - looking forward to seeing how that goes, it is definitely what I was sold on until I saw the first results of the GTX mid frame turbos. Good luck, could be interesting :)

I finally just took delivery of my new GTX3071R!!! Here are some pics up against what it is replacing.

If the GTX wheels work like their maps show then mated to a 0.82 turbine housing should be the right combo for and RB25.

post-31977-0-32226100-1298626006_thumb.jpg

post-31977-0-85812000-1298626018_thumb.jpg

post-31977-0-60972500-1298626029_thumb.jpg

post-31977-0-76261500-1298626038_thumb.jpg

post-31977-0-22773000-1298626054_thumb.jpg

post-31977-0-91998600-1298626061_thumb.jpg

post-31977-0-71837000-1298626072_thumb.jpg

Edited by JustinP

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