Got Over 400kw Atw?

[blk180]

Tommcat? 2.8lt Vcam -5s

Im sure ash would know this one was another Vic monster.

[N1GTR]

It's "GTRRKT" which was Tango Matts R34.

[Marko R1]

GTRKAT was tuned by Scott & Insight M/S, runs a Vipec - very nice car

[N1GTR]

I must be missing something, whats the relevance to this discussion Marko?

[On Edge]

I must be missing something, whats the relevance to this discussion Marko?

about the same relevance as that 300,000 word 20 year old sig quote

[N1GTR]

about the same relevance as that 300,000 word 20 year old sig quote

Thought that may be the case!

[Marko R1]

I must be missing something, whats the relevance to this discussion Marko?

I am making a statement that its a nice car, is that not allowed on sau?

about the same relevance as that 300,000 word 20 year old sig quote

hmmmm...i will amend my sig if its that much of an eyesore

Thought that may be the case!

enough with the bait! give it a rest

[N1GTR]

I genuinely was waiting for you to post a 400kw graph or some awesome drag result about that car, given that's the whole point of this thread

[On Edge]

[Marko R1]

Its making 390awkw on 20psi and cams at 0 degrees (don't ask lol), with a retune it qualifies for the 400kw club so once its there I'll post it.

Btw - fair call on my sig.

[R31Nismoid]

Always a bit sceptical when theres no corrections on a dyno dynamics graph for all we know that graph could be stock turbos with 200 degrees of intake compensation.. Before xmas my car made 492rwkw on e85 and 26psi on a pretty hot day with 28degrees AirTemp 49 degrees InletTemp compensation worked in the figure i thought nice not much to go till 500 now. After having a few problems we stopped tuning for the day, 2 days later went to another dyno, tune unchanged made 460rwkw i was like

Anyway dynos tell porkies we need more mph on the 1/4 in this thread..

There was a full thread on the car specs if you want to know more - rb29 was in the title IIRC.

[Ryan1200]

There was a full thread on the car specs if you want to know more - rb29 was in the title IIRC.

Yep i remember the thread well was pretty blown away by the midrange just pointing out how much dynos can vary...

[Dajae]

There was a full thread on the car specs if you want to know more - rb29 was in the title IIRC.

"RB29 wow". Great thread, and that graph is pure car porn.

Hey question for you guys.. Im currently building my engine, and a thought crossed my mind.. The gtx3076r's compressor map shows it can flow around 65lbs/min of air at ~29psi. Could this translate into a hopeful ~530 - 550rwhp? Or ~400rwkw? I mean, could it be done for sake of argument..

The housing configuration i figured would be a 1.06 T4, most likely divided and mated to a twin scroll manifold.

Any thoughts guys?

[Lithium]

I wouldn't, not unless you've seen anyone push one that hard and make that much power on a dyno type that gives results which reads in the area you aim to reach that power on. You certainly won't be getting that power from one on pump gas on any dyno, E85 or something similar would be a must.

400kw should be achieveable on E85 with a GTX3076R at least on a hub dyno, actually even potentially with a run of the mill GT3076R.

[scotty nm35]

"RB29 wow". Great thread, and that graph is pure car porn.

Hey question for you guys.. Im currently building my engine, and a thought crossed my mind.. The gtx3076r's compressor map shows it can flow around 65lbs/min of air at ~29psi. Could this translate into a hopeful ~530 - 550rwhp? Or ~400rwkw? I mean, could it be done for sake of argument..

The housing configuration i figured would be a 1.06 T4, most likely divided and mated to a twin scroll manifold.

Any thoughts guys?

I thought the same thing, the GTX3076 compressor flows nearly 5 lbs more than the GT35 on paper so 400atw should be theoretically possible with enough boost.

[Dajae]

I wouldn't, not unless you've seen anyone push one that hard and make that much power on a dyno type that gives results which reads in the area you aim to reach that power on. You certainly won't be getting that power from one on pump gas on any dyno, E85 or something similar would be a must.

400kw should be achieveable on E85 with a GTX3076R at least on a hub dyno, actually even potentially with a run of the mill GT3076R.

Was definately thinking the e85 route aswell. IIRC, some of the supra guys have them running 26psi, so i figure the odd jump to 29psi would be ok. And because of the 1.06a/r, EGT temps *should* be fairly acceptable.. I think?

Wouldnt the gt3076 be out of its ideal efficiency? I mean, i havent seen one go past ~24psi, but then again i havent looked for that exact figure..

My build should be done around september, so might push it to 29psi to see if its achievable.. For science-sake

Scotty, glad to see im not the only one! i know the gtx are marginally slower coming onto boost, but i figure the divided housing mated to a twin scroll mani should bring it back to bee's dick of difference.

Thanks for the input gents!

[R31Nismoid]

Problem with ramming so much boost etc, what happens if you get a slightly average batch of fuel?

There is really not enough room for error running uncontrolled fuels in street cars.

[Lithium]

The normal GT3076Rs have been pushed up past that before and made good power, but yeah they are definitely pushing shxt up a hill. I reckon the gun choice for what you're looking at doing would be a FP GT3076RHTA personally.... have a look into those while you're considering it.

They are claimed as 59lb/min, which sounds underwhelming compared to the GTX but bare in mind the maximum flow is rated to whatever flow efficiency the company decide to use as a cut-off and isn't an absolute - and also Garrett themselves have ultimately said the 77mm compressor used on the GTX3076R isn't suited to the GT30 hotside by putting it on the GTX3576R, the extra flow is argueably redundant on the GT30 turbine.

I think the HTA76 wheel is basically the ultimate compressor for a GT30 turbine, the most flow you could put through that turbine with better response than a normal 56trim GT3076R wheel.

[NYTSKY]

Im waiting for someone to stick a FP3794 on an RB, should be an absolute weapon!

[scotty nm35]

Problem with ramming so much boost etc, what happens if you get a slightly average batch of fuel?

There is really not enough room for error running uncontrolled fuels in street cars.

Mine is lasting well so far, haven't had any bad batches of Caltex yet either according to the wideband anyway. I did hear it pinking once on cruise one of the hot days we had, but its running 18:1 there for economy atm.

Im not scared about the little VQ, seen many stock VQ30det's pushing big numbers (400-450kw) and the VQ25det runs the same rods, the main worry is the auto. Either way, I have spare engines and a trans here.

I doubt 400 is attainable with the auto, (I would be happy with 350) but a built RB with a GTX3076 would sh*t it in. I will check out the HTA76 further Lithium but I think the compressor housing is a little too big. Does it still run the Garrett rear?