APS TT replacement and upgrade info....
12-01-2007, 09:43 AM
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Originally Posted by tig488
too small.
i thought the standard APS turbos were 2835s.
i thought the standard APS turbos were 2835s.
12-01-2007, 02:21 PM
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Originally Posted by tig488
too small.
i thought the standard APS turbos were 2835s.
i thought the standard APS turbos were 2835s.
By switching to a GT2560 you are actually INCREASING the size of the housing from the standard APS Turbos.
At least, this is what I conclude after reading through all of the info.
With our engines I highly doubt you will feel any difference, actually.
If the goals are around 500whp a GT2560R will do the job just fine, again, I HIGHLY DOUBT there will be lag . . .
12-01-2007, 06:10 PM
#25
Originally Posted by gecof1
Major tuning shops like APS go to Garrett and they specify what are their goals. Custom made turbos can be ordered to cover all tuners needs. This is the issue with turbos from APS. Look around garrett list. There are not 0.8A/R compressor housing apart from 2565s, but by using a larger compressor wheel the job is done with smaller housing.
Last edited by tig488; 12-01-2007 at 06:35 PM.
12-01-2007, 06:30 PM
#27
for what its worth...
this is from a previous post by Zivman
The turbos are a hybrid GT25 turbo with a GT35 compressor housing. The original tech name for it was a GT2535R, but Garret has updates its litterature and it is now labeled as a GT2871R.
The original info on the turbos:
"The turbos are Garrett GT2535R Water-Cooled Ball-Bearing Turbochargers
It is a new hybrid speced by APS for Garrett to produce to match the VQ35DE. What the alphanumeric name means is, the turbine side uses the GT25 housing and the compressor uses a GT35 housing"
As an update, I was provided with this info....directly from APS:
APS twin turbo system are actually a GT 2871R, the turbo model terminology was changed by Garrett approx 4 months ago"
The reason you are having a difficult time finding more info from Garrett is the fact that these turbos are manufactured exclusely for APS for use in their kits.
this is from somebody else...
When David from APS visited us at Enjuku Racing, he informed us that the turbo was a GT2871R but he was using a compressor cover from that of a Skyline GT-R N1 due to the nature of the compact design that the turbo(s) required in this particular application.
this is from a previous post by Zivman
The turbos are a hybrid GT25 turbo with a GT35 compressor housing. The original tech name for it was a GT2535R, but Garret has updates its litterature and it is now labeled as a GT2871R.
The original info on the turbos:
"The turbos are Garrett GT2535R Water-Cooled Ball-Bearing Turbochargers
It is a new hybrid speced by APS for Garrett to produce to match the VQ35DE. What the alphanumeric name means is, the turbine side uses the GT25 housing and the compressor uses a GT35 housing"
As an update, I was provided with this info....directly from APS:
APS twin turbo system are actually a GT 2871R, the turbo model terminology was changed by Garrett approx 4 months ago"
The reason you are having a difficult time finding more info from Garrett is the fact that these turbos are manufactured exclusely for APS for use in their kits.
this is from somebody else...
When David from APS visited us at Enjuku Racing, he informed us that the turbo was a GT2871R but he was using a compressor cover from that of a Skyline GT-R N1 due to the nature of the compact design that the turbo(s) required in this particular application.
12-01-2007, 10:41 PM
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The range stands between the 25ths and 28ths. Turbine is coming from GT28s with 0.64A/R. The compressor housing is coming from a GT2554, machined to accommodate the compressor wheel of the, 2871R. There is not a direct replacement at garrett catalogue
12-02-2007, 09:34 AM
#32
Actually I was going to post this ina different thread but I just got back from dynoday at JER. And I have a comparo from before and after the turbos were rebuilt...
Before: DynoJet: 545rwh, 500trq -13psi
DynoDynamics:450rwh, 500trq -13psi
After: DynoJet: 535rwh, ?trq - 14psi
DynoDynamics: 430rwh, 530trq -14psi
These new rebuilt jobs obviously lose out a little..but it feels like it spools faster and in alot more responsive at the lower rpms...
Before: DynoJet: 545rwh, 500trq -13psi
DynoDynamics:450rwh, 500trq -13psi
After: DynoJet: 535rwh, ?trq - 14psi
DynoDynamics: 430rwh, 530trq -14psi
These new rebuilt jobs obviously lose out a little..but it feels like it spools faster and in alot more responsive at the lower rpms...
12-02-2007, 03:08 PM
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Originally Posted by Crom
Actually I was going to post this ina different thread but I just got back from dynoday at JER. And I have a comparo from before and after the turbos were rebuilt...
Before: DynoJet: 545rwh, 500trq -13psi
DynoDynamics:450rwh, 500trq -13psi
After: DynoJet: 535rwh, ?trq - 14psi
DynoDynamics: 430rwh, 530trq -14psi
These new rebuilt jobs obviously lose out a little..but it feels like it spools faster and in alot more responsive at the lower rpms...
Before: DynoJet: 545rwh, 500trq -13psi
DynoDynamics:450rwh, 500trq -13psi
After: DynoJet: 535rwh, ?trq - 14psi
DynoDynamics: 430rwh, 530trq -14psi
These new rebuilt jobs obviously lose out a little..but it feels like it spools faster and in alot more responsive at the lower rpms...
12-02-2007, 09:36 PM
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Originally Posted by tig488
APS claims their turbos are custom, but they arent. the single turbo kit ( that i had ) was claimed to be custom, the only thing custom was the elbow welded to the compressor housing.
People think custom, and they think super special. If APS said they used a standard garret turbo, i guess you would be pissed off to find you cant buy one off the shelf.
12-02-2007, 09:49 PM
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Originally Posted by Crom
Actually I was going to post this ina different thread but I just got back from dynoday at JER. And I have a comparo from before and after the turbos were rebuilt...
Before: DynoJet: 545rwh, 500trq -13psi
DynoDynamics:450rwh, 500trq -13psi
After: DynoJet: 535rwh, ?trq - 14psi
DynoDynamics: 430rwh, 530trq -14psi
These new rebuilt jobs obviously lose out a little..but it feels like it spools faster and in alot more responsive at the lower rpms...
Before: DynoJet: 545rwh, 500trq -13psi
DynoDynamics:450rwh, 500trq -13psi
After: DynoJet: 535rwh, ?trq - 14psi
DynoDynamics: 430rwh, 530trq -14psi
These new rebuilt jobs obviously lose out a little..but it feels like it spools faster and in alot more responsive at the lower rpms...
Thanks for the info Crom.
12-03-2007, 02:11 AM
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Originally Posted by Weqster
A custom turbo is a non-standard item. Does garret list a 90deg outlet in there catalog? No. Its custom.
People think custom, and they think super special. If APS said they used a standard garret turbo, i guess you would be pissed off to find you cant buy one off the shelf.
People think custom, and they think super special. If APS said they used a standard garret turbo, i guess you would be pissed off to find you cant buy one off the shelf.
12-03-2007, 02:16 AM
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Originally Posted by Devil Z
Hmm i noticed more torque, less HP after your turbos were rebuilt. Which makes sense if you can feel them spool faster and are more responsive.
Thanks for the info Crom.
Thanks for the info Crom.
12-03-2007, 02:45 PM
#39
Originally Posted by Weqster
A custom turbo is a non-standard item. Does garret list a 90deg outlet in there catalog? No. Its custom.
People think custom, and they think super special. If APS said they used a standard garret turbo, i guess you would be pissed off to find you cant buy one off the shelf.
People think custom, and they think super special. If APS said they used a standard garret turbo, i guess you would be pissed off to find you cant buy one off the shelf.
no, i dont think super special, but when they market it as custom, and APS acts all "hush-hush" about turbo specs, and makes it out to be more than it is, and wont answer questions about it, and you find out that the only thing custom is that they have put a 90 degree elbow on it, thats total BS. i wouldnt expect anything else from APS.
Last edited by tig488; 12-03-2007 at 02:47 PM.
12-03-2007, 07:07 PM
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Originally Posted by tig488
oh snap, so i can try and market a CUSTOM turbo since i painted the housing!!! you know, since garrett doesnt list that in their catalog. theres also a little scratch where my socket hit it, i can add that to the spec list.
no, i dont think super special, but when they market it as custom, and APS acts all "hush-hush" about turbo specs, and makes it out to be more than it is, and wont answer questions about it, and you find out that the only thing custom is that they have put a 90 degree elbow on it, thats total BS. i wouldnt expect anything else from APS.
no, i dont think super special, but when they market it as custom, and APS acts all "hush-hush" about turbo specs, and makes it out to be more than it is, and wont answer questions about it, and you find out that the only thing custom is that they have put a 90 degree elbow on it, thats total BS. i wouldnt expect anything else from APS.