Revmoto you seem to know quite a bit about this turbo. What do you think the possibility would be on e85? If you could get to 28lbs or even a little more, I think this would be punchy like a ****

 

I would have to see the map but I want to say low 400's. Maybe 420. If 1.8t's can do this so can we.

 

what kind of bost do you think the 1.8ts and svts and such are running? I saw that sr20s are running like 25lbs, but is 25lbs on a 2.0 sr20 going to perform the same as 25lbs on the 2.0 4g63?

 

I've used the HKS 2510 (small turbine 28), the GT28, GT28RS and the GT2871-15. All of these were on a VW 1.8T with T25 housing. Obviously, that housing won't be ideal at all for the 2.0 Evo. The GT28RS was the best all around turbo I used for the smaller 1.8T, but I decided to step up to the next step and try the 2871-15. It's a 52 trim which is situated midway between Garretts 48 trim and their 56 trim. On the 1.8 motors, the 56 trim was too much and too much lag. As soon as the 52 trim came out, I bought it and replaced my 28RS. It had a little more lag but bearable. The VW transmission does not allow fast shifting AT ALL, but I took the car to the track one time to see what we could do and with ABSOLUTELY granny shifting it, I got a 13.3 at 107mph. Each shift took at least .6 seconds. The mph tells the power story. On a dynojet, it put down 343 whp and 357 wtq I believe. I found an older dyno sheet with the 28RS. I really don't believe that this turbo would be worth changing out the stocker, unless it was the 56 trim 2871.

The dips after the peak torque were what we believed at the time to be boost cut. No way to 'flash' it like we do the Evos, at least at the time. The above graph was made with 25 lbs of boost. Also, remember, the 1.8T is a 10.5 (if I remember correctly) compression motor. Quite a bit higher than our Evo's.

 

IDk I think a T3 gt2876r with an HTA conversion might actually be quite interesting but as I stated before the cost might not outweigh the gains. If its an 03 or 04 I say go for it. I would do 25lbs on this turbo on pump and 28-30 on E85.

 

That dyno sheet looks promising, more or less flat up top which I would take over a sharp drop anyday. Especially considering like 9sec9 said, reflashing wasn't available at the time. I think you guys are probably right about the gain vs cost.....but still it would be nice to see someone do it so we KNEW on an evo what's capable of the 28

 

If somebody had a kit that would be convenient but haven't seen anything on this turbo for our cars. Everybody just wants to see crazy numbers with very little power under the curve.

 

Thats probably because 85% or more of this board seems to be concerned only with 1/4 mile or highway pulls

 

Looked at Garretts webpage, cant find a GT28 with a T3 flange, all they list is the T25, biggest seems to be 2876 with .82 A/R

 

ATPturbo.com they have everything but a good kit for an Evo.