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Thread: GTX28r turbos

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Posts: 11-20 of 36
2012-08-23 02:52:53
#11
I want it b/c it will go well with my current setup (T3, vband, ext WG) its simply a bolt-in affair. The 67R also has a higher number/larger efficiency island than the rest.

I have a 2860RS now (35lb/min) im getting the GTX2867R (45 lb/min) Garrett said on their facebook page it will do 500hp. Its just awesome for my goals.

The guy from zilvia said it was 308whp on 11psi. (see below)





Originally Posted by codyace
Had our dyno day yesterday at a different dyno shop. Big boy load bearing dyno this time. We've had plenty of cars dyno at Franks and our old Dyno, and it's usually a solid 20 hp difference between them. I can say that having dynoed over 300 cars now on the old dyno, that it does take some getting used to the Mustang dyno..on the Dyno jet you can almost always just lay on the hammer and make power (it's only a little 1000 lb roller). On the Mustang Dyno you usually spin the tires on the first pull as the rollers are double the weight of the car. You also need to train yourself to 'stay in it' as the dyno builds resistance...it's odd at first as you think you're hurting the car...but it's normal. Then again he's used to setting up 2000+ hp cars on the dyno so it's different for them needing big load.

Either way the car put down 395 at 19/20 psi. Forget the torque, but will have that soon. With that said I'm VERY happy with the results, as that's (and again we've compared 30-50 cars now between the two dynos) typically a 415-420 WHP car on our old DynoJet at Deihls Paving. At 11 PSI it made 308 whp.

I'm stoked. Only thing was I had to keep cranking the boost to make 20 PSI on Franks dyno...and of course I forget to turn it down. On the way home I laid into it and it made 25 psi...let me assure you it was freaking fast.

Same setup as before, just super low plug gap. I'm hoping to get the longer dwell and opening the gap to make some more power.

Cliffs: SUPER happy with the new turbo. Boost builds sooner, comes on nicer, and without a doubt makes more power than the 2871r setup.
Last edited by unijabnx2000 on 2012-08-23 at 02-56-22.
2012-08-23 03:38:44
#12
Talked to ATP about them. You can apparently reuse your existing T28 turbine housing to reduce costs, but my GTI-R one had cracks in the wastegate port. Their compressor housings are supposed to be particular to the GTX series. They do offer a GT2860R compressor housing with they typical Nissan 2 bolt inlet, 3 bolt outlet; but BE WARNED, the 2860R compressor housing bolt pattern for the GTX2863r is different from the GTI-R one so it will not directly bolt on. If you just buy the generic housing with the open ends you can put on whatever couplers fit your bill though.
2012-08-23 03:51:30
#13
Originally Posted by tech44
Talked to ATP about them. You can apparently reuse your existing T28 turbine housing to reduce costs, but my GTI-R one had cracks in the wastegate port. Their compressor housings are supposed to be particular to the GTX series. They do offer a GT2860R compressor housing with they typical Nissan 2 bolt inlet, 3 bolt outlet; but BE WARNED, the 2860R compressor housing bolt pattern for the GTX2863r is different from the GTI-R one so it will not directly bolt on. If you just buy the generic housing with the open ends you can put on whatever couplers fit your bill though.


That doesn't affect me, but why do this upgrade if u don't change from the 2/3 bolt housing
2012-08-23 03:58:20
#14
wanted direct replacement. Still have factory top mount. The drawing on Garrett's website showed that the locations of the bolt holes are the same, just different locations.
Last edited by tech44 on 2012-08-23 at 03-59-09.
2012-08-25 18:03:38
#15
I wonder how well a high compression low boost GTX28r would perform. SR20VE with 11:1 compression and say, 8psi.

I would guess 300whp on 8psi. And E85 would be a riot!

Too bad I can't do crazy stuff like this.
2012-08-27 01:07:40
#16
My VE has 11:1 compression and I have easy access to E85...tempting.
2012-09-02 07:17:32
#17
Coheed is there any similar to gtx28r 500hp turbo from the PTE ? (the ballbearing PTEs are cheaper than Garrett ones)
2012-09-03 06:11:58
#18
Nothing in a t2 will make 500hp. But a 5757 should do ok.
2012-09-09 06:59:31
#19
On my SR21DET RWD we are currently running a GTX2867 with a .82AR T3 divided housing. We are currently max out at 30PSI and we made 490RWHP with 480ft/lbsTQ. We are at 180K RPM on the turbo thats pretty awesome for a T28 series!!!
2012-09-09 07:08:34
#20
Originally Posted by Sexxxyslide
On my SR21DET RWD we are currently running a GTX2867 with a .82AR T3 divided housing. We are currently max out at 30PSI and we made 490RWHP with 480ft/lbsTQ. We are at 180K RPM on the turbo thats pretty awesome for a T28 series!!!



Wow good figures! Whats your complete set up? fuel?
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