Opinions On My Tune Gtx3076

[AngryRB]

if you compare micko's gtx3071 with the gtx3076 the power curves are almost identical, even the boost response is identical, i do admit i have cams ( not sure if they really benefit the boost response, might even slow it down) and external gate so maybe this has brought my turbo up to his level , but the difference in boost levels is just as significant, im running 5-6psi less in the whole rev range..

Seems the gtx3076 has been taking a bad wrap for a long time, and the gtx3071 is described as more responsive/better turbo and the turbo of choice, compare the two graphs and they are equal, the gtx3076 should even be in first place, and with over 350kw potential its a winner in my eye..... obviously setup dependent ( external gate, E85, proper tune, engine condition etc)

might add some in car footage soon ..

Edited August 12, 2012 by SliverS2

[scotty nm35]

That's the issue Mark, not many cars have a good enough setup to attain those sort of figures, and that's why it got a bad name. Stock manifolds or 3 inch exhausts aren't going to cut it, we are talking 4 inch system here, and how many would run that on the road.

I can say after running both the GTX3076 isn't quite as responsive as the 71 but spools in a similar fashion, with approx. 40kw higher potential imo.

[Mitcho_7]

I think the gtx range is very impressive going off some of the most recent results.

But I personally would probably still sway to the gt3076 If I didn't want to run more then 18-20psi and was internally stock. The gtx3076 would be epic on a built 25/30 running an external gate and pumping 25+psi.

Has there been any twin scroll setups for the gtx3076 to combat the smidge of extra lag?

Edited August 13, 2012 by Mitcho_7

[34GeeTeeTee]

I think the gtx range is very impressive going off some of the most recent results.

But I personally would probably still sway to the gt3076 If I didn't want to run more then 18-20psi and was internally stock. The gtx3076 would be epic on a built 25/30 running an external gate and pumping 25+psi.

Has there been any twin scroll setups for the gtx3076 to combat the smidge of extra lag?

Yep, its in the RB25 results! Was REALLY responsive...... Wish i went that way now!

[wolverine]

I have a GT3040 sitting in the garage, I reckon it will produce the same numbers on E85 as a GTX3076 but much cheaper.

[Mitcho_7]

Yep, its in the RB25 results! Was REALLY responsive...... Wish i went that way now!

The only one I can find is a regular gt3076r twin scroll that Scotty did the exhaust etc for. It's got a pretty freakin epic looking graph on 98 let alone the e85 tune!

What is the difference between the gtx3076 and the gt3040 wolverine?

[wolverine]

IMO from the results I have seen, not much difference except the price.

[34GeeTeeTee]

I have a GT3040 sitting in the garage, I reckon it will produce the same numbers on E85 as a GTX3076 but much cheaper.

How much you after? That is the 3082 equivelent yeah?

The only one I can find is a regular gt3076r twin scroll that Scotty did the exhaust etc for. It's got a pretty freakin epic looking graph on 98 let alone the e85 tune!

What is the difference between the gtx3076 and the gt3040 wolverine?

I think the compressor is bigger? Power potential is similar though!

[wolverine]

Yep, GT3040 is a GT3082.

The compressor is an 82mm compressor with similar flow potential of a billet 76mm compressor. Same 60mm turbine.

My GT3040 has extrude honed front and rear covers. I changed to a TS GT3076 so the old turbo is still sitting in the shed.

[Mitcho_7]

Ts housing on the 3040 for science?

Or will it not fit?

Edited August 13, 2012 by Mitcho_7

[AngryRB]

i dont know much about gt3082's, my turbo doesnt feel like its an on/off turbo like the gt3082sounds, mine feels very efficient and on throttle is torquey even off boost and with 5psi in third is taking off, the mightly rush happens at 4000-4500rpm and never runs out to 7000rpm, but its not like a switch, up some steep hills it will pull you in the seat even at 3000rpm...

so without experiencing a gt3082 i cant say, but i can say this turbo is showing its presence even without the 4000rpm etc revs...

i agree though if you dont want to run atleast 20psi then the gt is better...

[wolverine]

Ts housing on the 3040 for science?

Or will it not fit?

TS housing would fit .

If I had a highmount manifold, for science, it would go on. Since there was enormous difficulty getting the manifold, oil drain etc fitted with an RB25 from a Stagea in the R33 there is no chance the current turbo is coming off unless the engine comes out.

i dont know much about gt3082's, my turbo doesnt feel like its an on/off turbo like the gt3082sounds, mine feels very efficient and on throttle is torquey even off boost and with 5psi in third is taking off, the mightly rush happens at 4000-4500rpm and never runs out to 7000rpm, but its not like a switch, up some steep hills it will pull you in the seat even at 3000rpm...

so without experiencing a gt3082 i cant say, but i can say this turbo is showing its presence even without the 4000rpm etc revs...

i agree though if you dont want to run atleast 20psi then the gt is better...

Sounds just like a GT3040 which isn't very different from a GT3076 in my experience.

[s213b]

Just read the whole thread, sounds like an impressive build.

I've got a fresh forged + camed 25 waiting to go in my 32, Gtx3076 + ext gate + 20-22psi on e85 seems a good way to go in your experience?

I'm still tossing between 76 & 71..

[Lithium]

Out of interest, a local workshop here have done a built SR20VE+T using a GTX3076R and tuned it to 30psi and made a fairly impressive 477kw @ hubs with it. When given a bit of shite about dyno setting fiddling they gave a bunch of info on how they ran it so people can scrutineer it for themselves.

Looksy here: http://www.shredmotorsport.co.nz/2012/sr20vet-results-and-the-truth-about-dyno-corrections/

[AngryRB]

Just read the whole thread, sounds like an impressive build.

I've got a fresh forged + camed 25 waiting to go in my 32, Gtx3076 + ext gate + 20-22psi on e85 seems a good way to go in your experience?

I'm still tossing between 76 & 71..

i dont see the point in a gtx3071, the gtx3076 seems to respond just as good and makes more power from the dyno graphs ive compared and with less boost,( micko's compared to mine for example) im still thinking wether the 0.63 rear would of been the best option seeing my power goal was 300-320kw, the spooling and area under the curve may have been better and still had the top end, thats using E85..

Edited October 22, 2012 by SliverS2