shiv@vishnu

iTrader: (20)

A customer of ours came in yesterday to do a maximum hp tune for his HKS GT3037-based turbo kit. The EVO was fully modified (cams, full exhaust, test pipe, 6 speed, differentials, intake, etc,.) At 30psi of boost, running c16, the turbo maxed itself out at 390whp on our Dyno Dynamics dyno. Stock EVOs put down 195-200whp. Peak power was made at a reasonably low ~6000rpm due to turbo flow limitations. According to the Dyno Dynamics shootout software, estimated flywheel hp is 488bhp. Although in aftermarket claim land, this is probably well over 550bhp Feel free to apply your own interpretations...

I'll post up dyno charts on Monday.

Cheers
shiv

Ryanmcd3

So is your turbo making more or less then that one?

Evo2Envy

iTrader: (1)

did you by chance get the A/R designation .87, .73, .68, or .61? also, which a/r did u run on ur shop car???

Creamo3

iTrader: (48)

I don't really consider peak power at 6k rpm's low, but those are good top end numbers if you are into that kind of setup. I prefer more useable/streetable power where you don't have to rev you're car too high just to get some response.

ez76

iTrader: (5)

is the 6 speed's lower gearing much different in the gear you run on the dyno?

QuantumEVO

iTrader: (12)

So, does "fully" include anything done to the head or intake manifold? Which cams?

Mark
www.Quantum-Racing.com

shiv@vishnu

iTrader: (20)

A lot more As for full modified, I meant just with bolt-ons. Stock head, stock block, stock intake manifold, etc,. The car is running 272 cams, intake and exhaust.

When you see the dyno graphs, you'll see what I mean about the turbo being undersized for this power level. The hp curve looks more like a torque curve (flat up top).

I haven't double-checked, but I believe the standard HKS kit comes with a .87a/r as designated by HKS, using their own proprietary HKS housings. I'll check on Monday. Compared to Garret offerings, this turbo seems to spool up like a .63 but is power limited up top like a .58. Not a good turbo match, IMHO.

We run a somewhat trick set-up in our Stage 2 offering. Offers nearly identical performance up to 5000rpm as the HKS turbo. But by 7500rpm, there's is at least a 60+whp differential, offering a much more useable power band. Both make full boost (30psi) by 3900rpm on the road.

Shiv

Crazy4Cars

iTrader: (1)

Those numbers are too low, on our customer road race evo 6 with the same turbo and all race parts an a motec m48 pro and blitz 1000cc, we made 608hp. That Turbo is the tuner's choice in Japan right now.

Pesto360

iTrader: (2)

I respectfully disagree with you about the potential of the 3037s, something must have been wrong with that car or the dyno must read very low. I have a similar setup on my car, except my head is hogged out and i have bigger valves, balance shafts removed balanced rotating assembly pistons etc etc.. and with a conservative 21 pounds of boost on 93 octane I pulled 419whp on a Dynojet...( I know youre going to say dynojets read or calculate hp a bit more liberally) but why did you limit the car to 6000 rpm and blame it on turbo flow limitations, when I have shown that the car can still produce power close to 9000 rpm, is the bottom end not build on the car your talking about? if so I can see why, but thats then a limitation of the bottom ends ability to spin, and not the limitation of the turbo.

Pesto360

iTrader: (2)

and if anyone is interested...Ill be selling my entire HKS 3037s kit with a NEW 3037s turbo ( mine exploded) or a modified 3037s to your specs...I put the SFP.net GT35r kit on mine to make that magice 500whp on pump gas (500 dynojet whp)

94AWDcoupe

iTrader: (125)

When do we get the juicy dyno numbers?

Pesto360

iTrader: (2)

maybe monday..have to check the dyno schedule there is only one awd dyno is so fl..and they are always busy..good business opportunity for someone to open up another dyno shop

Pesto360

iTrader: (2)

Vishnu, I took another look at my dyno sheet, and there is a link Ill attach at the bottom of this response, if someone wants to figure out how to post it so it comes up automatically Id appreciate it ..I cant figure it out...anyway...according to my dyno chart....and where u say yours peeks, your dyno seems a bit more liberal than the one I used, however since we used basically the same setup etc ( did u run a stand alone?) the cams should make the power at about the same rpm with the same setups....seems u cut the car off before it really started to make some power....at about 6000 rpm my car made about 370whp...yours made 390 thats awesome,( I was also running 93 octane and yours was 116 octane) if you would have let it breathe to 9500 rpm u would have probably seen 500+ hp...then again if the bottom end isnt built i can understand ....Im not doing a comparison mine is bettetr than yours etc..Im just pointing out something thats obvious to me and may confuse others who arent aware of the situation.... but to cut it off at 6000 rpm doesnt make any sense, even on a stock motor. Here is the chart thread
https://www.evolutionm.net/forums/sh...&highlight=419

metaphysical

iTrader: (3)

He had a 6-speed transmission???

memo3

iTrader: (40)

What kind of fuel management he is using?