Whos Interested In The Gt3076r/gt3037 In 52 Trim ?

[Lithium]

Very nice - actually thought it might make a little more, but that is still very healthy and should have a wicked power delivery! Look forward to reports on how it drives

Is that a Dyno Dynamics dyno?

[wolverine]

It will be great fun to drive. Hopefully Disco has time to drive by my work on the way back home.

The instant response of the GT-RS is what makes it a fun streeter, with a bit more top end it should be even better on open roads like Bells Line.

[34GeeTeeTee]

Has anyone done a comparison of the 3076R 0.82 against a Precision 5558 0.63 which is what I run now. I was torn between these two turbos and Yavuz from Unigroup told me they are more or less identical on RB25s but that the Precision does start to shine more on high boost which is what their strength is. The power delivery from the 0.63 5558 is also snappy when it comes on and not smooth /boring, that is what I wanted so I am happy.

Saying that if I had to do a street RB25 again I would go the 'peoples choice' which is the 3076R 0.82 just to try it out and knowing it is a winner.

You know mine and Kurtis's are a good comparison, he makes a few KW more with 3psi more boost but both cars are amazing to drive everywhere in the rev range and are setup very similar.

5558 0.63 vs 3037 56T 0.82

[discopotato03]

Well I'd say Scott found the limits of the GTRS and it sounds like a good result from the littlish fella .

My ask was firstly this has to be a nice car to drive as in drivability start up consumption etc . I left it up to him how much boost to run and that turned out to be 18 pounds . Not sure what brand dyno Insight use .

Anyway I'll find out what it drives like later in the day when I pick it up . Andrew not sure if I can get to you today because as you know its a bit away from my district and not the place to hang about for the afternoon peak hour - or four . May be able to meet at that place on the weekend ?

So as to not be off this threads topic the 52T GT30R is still a possibility and I do remember reading here that someone went from a GTRS to a 52T GT3076R and had virtually no lag penalty . As mentioned Mr Mafia got over 300 wasps from his 3076R and that , like a GTRS , was wearing the small or 0.63 AR IW turbine housing . Beating the heat seems to be the big issue and it sounds like E70/E85 or in Mr Mafias case water methanol injection is doing just that .

Now to give the wallet a rest a just drive the thing , cheers A .

[Lithium]

Looking forward to seeing the result for this car too: http://www.skylinesaustralia.com/forums/topic/417832-precision-pt6766-vs-forcedperformance-gt3794r-hta-dyno-shootout/page__view__findpost__p__6735544

It's a RB25 with a GT3076R-HTA (essentially a HTA-spec 52trim GT3076R) and will be tuned on E85 - would make for interesting comparison with the PT and Garrett turbos.

[34GeeTeeTee]

Looking forward to seeing the result for this car too: http://www.skylinesa...ost__p__6735544

It's a RB25 with a GT3076R-HTA (essentially a HTA-spec 52trim GT3076R) and will be tuned on E85 - would make for interesting comparison with the PT and Garrett turbos.

I really wanted to go that path as i have heard nothing but good things.... Will keep an eye on it too!

[discopotato03]

Yep FPs done a lot with those HTA conversions . David Buschur really like that one a screwed a lot of Hp and torque out of an Evo engine with one . As mentioned before note that these use the next family up (T04S) compressor housing and provided you can push significantly higher boost than most here do they make good numbers . Easily the sorts of numbers people though quite reasonable from a conventional GT3582R in recent years .

A .

[34GeeTeeTee]

Yep FPs done a lot with those HTA conversions . David Buschur really like that one a screwed a lot of Hp and torque out of an Evo engine with one . As mentioned before note that these use the next family up (T04S) compressor housing and provided you can push significantly higher boost than most here do they make good numbers . Easily the sorts of numbers people though quite reasonable from a conventional GT3582R in recent years .

A .

Hmmmm sounds tasty! So an improvement over a GTX by the sounds....

[wolverine]

Anyway I'll find out what it drives like later in the day when I pick it up . Andrew not sure if I can get to you today because as you know its a bit away from my district and not the place to hang about for the afternoon peak hour - or four . May be able to meet at that place on the weekend ?

I realise it is a bit of a hike home but if you were in the area up to 3pm I have a bit of time.

[Lithium]

Hmmmm sounds tasty! So an improvement over a GTX by the sounds....

I've been making noises for some time now that I felt the GTX3076R may be too little too late (from Garrett) due to the existence of the FP GT3076R - and that it seems like the perfect successor to the 56T GT3076R for better spool and better flow, for some reason for a large part the FP HTA stuff is largely overlooked but the Precision stuff has got quite trendy in terms of high flowing billet 'custom' jobs. I now find myself really hoping I'm right in regards to the match to an RB25, and very much looking forward to BRI73Y's results

[34GeeTeeTee]

I've been making noises for some time now that I felt the GTX3076R may be too little too late (from Garrett) due to the existence of the FP GT3076R - and that it seems like the perfect successor to the 56T GT3076R for better spool and better flow, for some reason for a large part the FP HTA stuff is largely overlooked but the Precision stuff has got quite trendy in terms of high flowing billet 'custom' jobs. I now find myself really hoping I'm right in regards to the match to an RB25, and very much looking forward to BRI73Y's results

Me too, will watch closely.... Mostly just for interest as it should be a good mix!

[simpletool]

I've always wanted a 52 trim GT3076 with something like a .73 housing. Would be good for around 280rwkw (on an Aussie dyno).

Then again a HKS GT2835 would be fantastic too - just stupidly pricey and needing a fancy dump pipe.

[AngryRB]

It will be great fun to drive. Hopefully Disco has time to drive by my work on the way back home.

The instant response of the GT-RS is what makes it a fun streeter, with a bit more top end it should be even better on open roads like Bells Line.

Looking at those graphs, the GT-RS looks very dissapointing in comparison to the gt30, even my gtx on 16psi and 98 matches it all over the graph, difference being i have external gate, just goes to show the big turbo's can pretty much match a GT-RS down low ( on the dyno anyway) but blow it away with some more boost.

Edited February 12, 2013 by AngryRBGTX

[wolverine]

Having owned a GCG hiflow, GT-RS, 2835ProS, GT3040 and TS GT3076 I have a pretty good idea how they drive. Dyno printouts don't tell the story of how they drive.

[Lithium]

So any general impression of how they all compare overall? ?

[wolverine]

GT-RS is very snappy on/off throttle compared to the 2835ProS so a better thing in cut and thrust city traffic. The ProS needs a slightly bigger throttle opening to get the car to move so despite dyno printouts looking similar down low they feel very different on the road. Once the roads open up the ProS has more legs and is fantastic particularly 80-110km/h when overtaking.

The GT3040 and GT3076 feel like slightly larger framed turbos and are not as responsive in traffic but have a whole lot more to give once they come on boost. The much maligned GT3040 is very close in performance to the new TS GT3076 with a few hundred rpm difference in boost threshold which could be due to tuning as much as compressor size or TS turbine housing. IMO the GT3040 is a budget GTX3076 and all it needs is someone to use E70-85 to prove it but no one has done it yet. Given the cost vs gain I wish I had stuck with my GT3040 although the GT3076 is a better thing it just wasn't worth the coin changing over.

[34GeeTeeTee]

GT-RS is very snappy on/off throttle compared to the 2835ProS so a better thing in cut and thrust city traffic. The ProS needs a slightly bigger throttle opening to get the car to move so despite dyno printouts looking similar down low they feel very different on the road. Once the roads open up the ProS has more legs and is fantastic particularly 80-110km/h when overtaking.

The GT3040 and GT3076 feel like slightly larger framed turbos and are not as responsive in traffic but have a whole lot more to give once they come on boost. The much maligned GT3040 is very close in performance to the new TS GT3076 with a few hundred rpm difference in boost threshold which could be due to tuning as much as compressor size or TS turbine housing. IMO the GT3040 is a budget GTX3076 and all it needs is someone to use E70-85 to prove it but no one has done it yet. Given the cost vs gain I wish I had stuck with my GT3040 although the GT3076 is a better thing it just wasn't worth the coin changing over.

I was due to prove this but the plan changed, if anyone else wants to step up and give it a shot then the turbo is up for grabs!

[discopotato03]

Scott reckons he likes one of the GT3071Rs - possibly the GTX one can't remember .

I also agree its a great pity Garrett or HKS never made GT30 turbine housings in 0.73 AR with T3 flanges . T25 flanged HKS ones work well but not much good to us .

I think with some mild head work and cams just about any GT30 based turbo should get close to or over 300 Kw on E70 or E85 .

About my bus , it was set up with the Tech Edge WB input rather than the OE probe and we both think that may not have been way to go . Scott reckons the std probe would be more accurate around stoi and my Tech Edges probe is a little out compared to his NTK wide band - by about 0.2 lambda .

He wants me to come back after a few tank fulls of E70 to be certain all the United E85 and Ultimate is out of the system . He set it a smidge rich just keep it safe until then .

I think he prefers the Injector Dynamics EV14 injectors and said he could get closer to ideal idle and cruise AFRs with them .

ATM I don't know the Vipec software and he said he'd load it for me next time with his "template" of what goes where because there is a large range of gauge etc options with them .

I'd like to see the actual tables so I know what the numbers are like . I got to like my last PFC maps and I was finally getting real good part throttle torque and consumption .

Anyway another learning curve , cheers A .

[GTScotT]

I was due to prove this but the plan changed, if anyone else wants to step up and give it a shot then the turbo is up for grabs!

got one to sell? based on prior feedback apparently these work better on SR's than 3076's do.

wouldnt mind testing that theory if priced right!

[bri73y]

Run in tune done last night. FP HTA 3076 - RB25

Was completed at 10:30pm so not a lot of time spent on getting it perfect.

Good enough to turn some k's before going back for final tune later next week.