hahahahah what an amazing guy. the only thing he has going for him is his handle picture. maybe while he waits for his car to make boost he can hit up some grammar lessons.

 

not a bad # on the kit i guess if it's 91 octane gas. i bet it would wake up with alky injection though. i also thought HKS made 540 to the wheels with a GT3037 kit?? i agree that very few turbos spool as quickly as the stock 16G, HOWEVER, the fastest spooling turbo $ can buy is still the HKS GT3240. Of course TC4G63 made 348whp here in AZ on dyno dynamics with a 91/101 octane mixture on a stock turbo, HKS 264 cams, & a custom Dynoflash...

 

The most the HKS 3037 turbo kit will/has ever make on our DD dyno is 420-430whp. And that's at 30psi with all supporting mods (cams, full exhaust, intercooler, etc,.) on c16 race gas. Kinda tells you how differently different dynos are calibrated.

my 2c,
shiv

 

Ahhh, HKS. they must have used a dynojet. so it seems that your setup is pretty comparable to Vivid Racing when their EVO made 425whp on a DD here in AZ last year with a Greddy T67 on a stock motor. Sizewise, what is the real difference between the T67 & a good sized Garrett?? i understand the bearing setup is superior on the GT's, but those T67's have pretty good topend. been tossing up the idea of a Greddy T88 on my '03 w/ a 4G64 block with a useable powerband from 3-8k rpm...

 

everything else is not the same.... ball bearing...

ok... so ballbearing doesn't make the max boost come on sooner? but if it ramps up faster after a certain boost pressure is reached... that's hitting max boost sooner.... isn't it?

and also does this setup surge at all? aren't there other a/r for the exhaust housing that would make it boost faster? cuz i know there is more than one a/r. i just want to get to the bottom of all this number flinging. although i think the verdict is that it will boost faster than stock evo and the boost does come on more quickly at least after boost starts coming on.

 

i think Shiv meant, the ball bearing doesn't so much help spool the turbo sooner, where sooner is defined as making boost earlier in the rpm range (compared to the same turbo, without the ball bearing) as it helps the boost response (when you are at an rpm that the turbo will fully spool at, but the turbo isnt spooled b/c you are not putting enough load on the car, the time it takes after you floor it to the time the boost spools up)

(i think)

 

and to that i wish garret would make ti wheels and stuff... but they don't exactly have rally interests sunk in....

 

I'm going to elaborate on what alex said...

Lets say a turbo's sizing dictates that it is capable of reaching full boost at 3500RPMs. If you took two identically sized turbos, one BB, the other standard bearing and held the car at 3500RPMs, partial throttle/no boost, and then went WOT but were able to hold the engine to 3500RPMs still, the BB turbo would hit that full boost mark before the standard bearing turbo. They're both capable of making full boost at 3500, just the BB turbo has superior response and will hit full boost sooner, even though RPM never changed.

To expand on this, we all know that when we floor it in our cars we don't stay at one RPM, depending on what gear we're in the RPMs will rise pretty quick as soon as the throttle is opened imp: . So if you took these same two turbos and floored it on the road at 3500 RPMs in 3rd gear, the RPMs would rise quick and the turbos would spool, if it takes .5sec for the standard bearing to spool and .25sec for the bb turbo to spool the car would be at a lower RPM when the BB turbo hits full boost. When you look at your tach and boost gauge you would be led to believe that a BB turbo is capable of making full boost at a lower RPM than a standard bearing turbo, in which case you would be wrong. However, a BB turbo will make full boost sooner than a standard bearing turbo. It really comes down to terminology, sooner being the key word dictating "time-to-boost" rather than "rpm to achieve boost".

As Shiv said, BB turbos have much better transient response as well, meaning if you're flooring it in 2nd hitting full boost at redline, you close the throttle, shift gears and reopen the throttle (unless you're shifting like a madman ) the BB turbo will hit full boost in that next gear sooner than the standard bearing turbo.

HTH

- Steve

 

any updates yet with this pump monster turbo

 

Wow shiv this kit sounds and looks amazing. I'm really suprised I was really never a big believer of Vishnu but hey I don't have any of there parts and I haven't had any experience with there parts. With that being said I'm really blown away by this kit. I have a few questions for Vishnu, how close are you to completing this kit? Will there be some sort of group buy on the first batch? (I only ask because there seems to be a lot of interested people in this kit that are seriously thinking about getting it) Will a header help this kit out in any way maybe better spool or more hp or torque? Also will works 269 cams or even hks 272 show similar gains like the 280's? Last but not least will there be a way that we can get this kit so that the wastegate dumps into the atmosphere and not in the exhaust? Also big bump for this thread!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Oh yeah i was following the buschur 21g thread but man this looks way more promising and a lot better gains goood job Vishnu

 

In regards to the header; The beauty of this is the OE Manifold (STRENGTH!).

Probably won't hear anything until ready for Market

 

Shiv
This is a very impressive set up. It is evident that this is no less than a pump gas monster but i am curious to know what kind of WHP numbers you expect this 3071 set up to run on 110 octane?

 

With the 3071, don't expect too much gains on race gas. Perhaps 20-30whp max. If you're looking for an extra 80-150whp, you need to consider a GT30R or 35R. Of course, they won't be as ideal when running on pump gas

 

By popular request, this kit will go into product with the cast stainless steel adapter. Once we have final pricing, we'll make an announcement here and take pre-orders since we're only going to make a limited first run of the cast adapters. This kit can be ordered with a 3071, 30r or 35r. It will include a downpipe which mates up to your cat-back. It will also look completely stock once you bolt on your heatshield

Cheers,
Shiv

 

Put me down for two please!