Turbo sizes between APS and GTM?

COSMO · 12-30-2012, 10:04 AM

New here and after much debate I have been trying to research the different size turbo's between the aps tt kit and gtm's tt stage II kit. Does anyone know if which of the turbo's are bigger?
Thanks a bunch,
cosmogirl

Cell · 12-30-2012, 11:44 AM

I don't think APS makes kits for the 370z.

COSMO · 12-30-2012, 04:12 PM

Well I was referring to the aps tt kit for the 350z compared to the gtm tt kit for the 370z. Basically a comparo between the gt28rs .86ar (gtm) and the gt2535r?

SharpByCoop · 12-30-2012, 09:05 PM

The gt2535 appears to be notably larger in capacity. It is capable as a single of 400hp.

Too big for most street needs. Depends what you're looking for, or prepared to build for.

Coop

kpjc4eva · 12-30-2012, 10:00 PM

GT28RS is a 42mm size turbo.
Couldn't find the other one.

Mike@GTM · 01-02-2013, 02:49 PM

I'm confused as to how there's all this incorrect information in here when a visit to Garrett's website would give you more correct information than you can shake a stick at.

Garret has a way of numbering their turbo part numbers in such a way as to let you know what the exducer size of the compressor is. So, in GT2554R, the 54 refers to the exducer size of the compressor wheel. Naturally, GT2860RS means that it has a 60mm exducer which is bigger than a 54mm exducer.

The first pair of numbers in their numbering system refers to the frame size of the turbo. The bigger the number, the bigger the turbo is. As such, a GT25 is smaller than a GT28.

In short, our Stage 2 turbos are bigger than the old, discontinued, no longer available APS kit for the 350Z.

SharpByCoop · 01-02-2013, 08:12 PM

^^^ I'll have another slice of that crow pie, Mike! LOL.

Coop

COSMO · 01-05-2013, 01:14 AM

Didnt mean to upset anyone here but thanks for the final word... Not to beat a dead horse but after researching it seeems the aps kit came with gt2871r turbo's rated a 40lbs per min and 400 hp a piece. It seems aps was trying to keep it a secret what the actual size turbo's were used for some odd reason...

COSMO · 03-02-2013, 06:31 PM

APS uses "GT25R" frame compressor housing on their GT2871R because it's the biggest one that can fit in there. The GT25R housing is remachined to take the GT2871R wheel.

elperuano · 03-02-2013, 09:36 PM

Uhhhh ok...

12-30-2012, 10:04 AM	#1 (permalink)
COSMO A True Z Fanatic Join Date: Dec 2012 Location: FL Posts: 1,816 Drives: 2012 Touring GTM TT Rep Power: 20	Turbo sizes between APS and GTM? New here and after much debate I have been trying to research the different size turbo's between the aps tt kit and gtm's tt stage II kit. Does anyone know if which of the turbo's are bigger? Thanks a bunch, cosmogirl Last edited by COSMO; 12-30-2012 at 04:17 PM.

12-30-2012, 09:05 PM	#4 (permalink)
SharpByCoop Enthusiast Member Join Date: Sep 2010 Location: Connecticut Posts: 286 Drives: '08 G37S - Graphite Rep Power: 15	The gt2535 appears to be notably larger in capacity. It is capable as a single of 400hp. Too big for most street needs. Depends what you're looking for, or prepared to build for. Coop __________________ Jim Cooper - (Retired: '08 Infiniti G37 Sport • TheShopCT built • 11.13 @ 123 mph (click for vid) • GTM Stage II Twin Turbo • 5-speed A/T Level Ten built • 591whp @17 lbs boost)

01-02-2013, 02:49 PM	#6 (permalink)
Mike@GTM Not an active Vendor. DO NOT BUY Join Date: Sep 2009 Location: California Posts: 391 Drives: '13 Hot Lava FR-S Rep Power: 17	I'm confused as to how there's all this incorrect information in here when a visit to Garrett's website would give you more correct information than you can shake a stick at. Garret has a way of numbering their turbo part numbers in such a way as to let you know what the exducer size of the compressor is. So, in GT2554R, the 54 refers to the exducer size of the compressor wheel. Naturally, GT2860RS means that it has a 60mm exducer which is bigger than a 54mm exducer. The first pair of numbers in their numbering system refers to the frame size of the turbo. The bigger the number, the bigger the turbo is. As such, a GT25 is smaller than a GT28. In short, our Stage 2 turbos are bigger than the old, discontinued, no longer available APS kit for the 350Z. cdoxp800, Legz and COSMO like this.

01-02-2013, 08:12 PM	#7 (permalink)
SharpByCoop Enthusiast Member Join Date: Sep 2010 Location: Connecticut Posts: 286 Drives: '08 G37S - Graphite Rep Power: 15	^^^ I'll have another slice of that crow pie, Mike! LOL. Coop __________________ Jim Cooper - (Retired: '08 Infiniti G37 Sport • TheShopCT built • 11.13 @ 123 mph (click for vid) • GTM Stage II Twin Turbo • 5-speed A/T Level Ten built • 591whp @17 lbs boost)

01-05-2013, 01:14 AM	#8 (permalink)
COSMO A True Z Fanatic Join Date: Dec 2012 Location: FL Posts: 1,816 Drives: 2012 Touring GTM TT Rep Power: 20	Didnt mean to upset anyone here but thanks for the final word... Not to beat a dead horse but after researching it seeems the aps kit came with gt2871r turbo's rated a 40lbs per min and 400 hp a piece. It seems aps was trying to keep it a secret what the actual size turbo's were used for some odd reason... Last edited by COSMO; 01-07-2013 at 08:22 AM.

12-30-2012, 11:44 AM	#2 (permalink)
Cell A True Z Fanatic Join Date: Jan 2010 Location: Chicago Posts: 1,449 Drives: A Garbage Truck Rep Power: 21	I don't think APS makes kits for the 370z.

12-30-2012, 04:12 PM	#3 (permalink)
COSMO A True Z Fanatic Join Date: Dec 2012 Location: FL Posts: 1,816 Drives: 2012 Touring GTM TT Rep Power: 20	Well I was referring to the aps tt kit for the 350z compared to the gtm tt kit for the 370z. Basically a comparo between the gt28rs .86ar (gtm) and the gt2535r?

12-30-2012, 10:00 PM	#5 (permalink)
kpjc4eva Base Member Join Date: Jan 2012 Location: Dallas Posts: 43 Drives: Marine Corps boots Rep Power: 13	GT28RS is a 42mm size turbo. Couldn't find the other one.

03-02-2013, 06:31 PM	#9 (permalink)
COSMO A True Z Fanatic Join Date: Dec 2012 Location: FL Posts: 1,816 Drives: 2012 Touring GTM TT Rep Power: 20	APS uses "GT25R" frame compressor housing on their GT2871R because it's the biggest one that can fit in there. The GT25R housing is remachined to take the GT2871R wheel.

03-02-2013, 09:36 PM	#10 (permalink)
elperuano A True Z Fanatic Join Date: Oct 2011 Location: Southwest FL Posts: 1,374 Drives: G37S Rep Power: 29	Uhhhh ok... blackonorange likes this.

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