someone please enlighten me. i cant find the differences anywhere. even on the garrett site, there is no 3037r turbo only the 3076. so im very confused. also on kits like the atp kit, some people say they have the 3076 but on the site there is only the 3037r turbo or te 3071 turbo. so are the 3037r and the 3076 turbos the same or different? which one is bigger?

 

I believe the 3076r is the biggest turbo in the 30 gt(garret) series. There is the 3071 and the 3076. The 76 flows about 52lbs per minute and the other flow less. I had a 3076 then upgraded to a 35r. With the 76 you can see close to 500whp on race maybe a little more. I also think that the 3037 is a Hks turbo, a garret turbo built by Hks to their specs.

 

http://www.atpturbo.com/Merchant2/me...egory_Code=GRT

just so everyone can see for them self what i am refering too.

 

please look at the offical lineup i posted, the link

 

dont forget 3065 i beilive it flows the best with the least amount of lag

 

i believe it all has to do with the turbine housing a/r and its size.

 

hum? does any one know if atp still offers the 3076 then? because i know people have them but they dont offer if on the site.

http://www.atpturbo.com/root/releases/release052704.htm

 

can anyone shed some light?

 

Yes ATP still offers the 3076. The 3076 is the biggest of the 30R's you can get from garrett. There are other people out there (FP) that make modified 30R's by changing the turbine housings, however they all share the same CHRA. The 3076 is capable of well over 500whp on race, I'm making 490 on race with a stock ecu, stock tb, stock intake manifold, hks 272 cams and a couple other things which are obviously a bit of a restriction compaired to available options right now.

A fully built 3076 running to its max on a good build should see mid to high 500 whp numbers, with cams ems and intake manifold i feel 550 wouldnt be out of the question, with an *** of tq too.

Scorke

 

The 3071 is the smallest, the 3076 is larger, and finally the 3037 is the largest of the three. Each succeeding one is a bit laggier and puts out significantly more power than the former.

I think that the 3037 is nothing more than a specially configured 3076(3076-12). I gather that the difference between the 3076 and 3037 is relatively minor such as a slightly different trim or a bit looser turbine housing, than the nominal 3076.

I hope that maybe someone on here can give you a better explanation of the actual differences which distinguish the 3037 from the 3076 than I did.

 

i have the gt3037r on my Full-Race kit. They give the specs on their site. I think this turbo rocks. I put down 459 to the wheels on 25 PSI 100 octane. My spool is in the mid 4k range. My turbo has nothing but Garrett stamped on it. Interesting there is nothing on their site.....Ray

 

Quote:

Originally Posted by rraulston

i have the gt3037r on my Full-Race kit. They give the specs on their site. I think this turbo rocks. I put down 459 to the wheels on 25 PSI 100 octane. My spool is in the mid 4k range. My turbo has nothing but Garrett stamped on it. Interesting there is nothing on their site.....Ray

Awesome numbers @ only 25# boost. Just out of curiosity, at what RPM did you reach the 459 WHP?

 

IIRC, 3037 and 3076 are the same except the 3037 is an HKS unit. There may be small differences, however. Not sure what those differences would be.

 

The GT3076=3037.

Garrett uses the compressor wheel diameter as the last two digits (76). The 3037 is an HKS model number. The "37" represented the Garrett turbo which used a 76mm compressor at that time (This was back in the good ol' days when Garrett had a lot less turbos to choose from).

An important note: HKS and Garrett make 5-6 different versions of a GT3076/37. Not all GT3076's are created equal. Make sure you know what you are getting. The most common GT3076 is the GT3076-12. This is also the newest T3 version of the HKS 3037.

 

On 116 at 25 psi I was making 460/460, good stuff hehe. The 3037 just designates the fact that it is the biggest of the 3076 cartridge choices, JJ hit the nail on the head.

Scorke