GT28RS .86 vs GT2871R .64 - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Silvi · 07-07-2013, 01:51 AM

I will be happy to hear from people who tried both about the differences.
The spool is most important, The power is less.

Thanks

Fries · 07-07-2013, 03:10 AM

It seems you know the difference. Also theres a gt2871-sr20 thread to refer to.

Silvi · 07-07-2013, 04:26 PM

Actually I dont really know how much difference between them.
I know about the AR64, But Im interested to know about the 86 compared to 2871 AR64

codyace · 07-07-2013, 10:33 PM

The disco potato does respond 'marginally' faster, but it's not anything worth giving up 40 hp and holding power to redline for.

Silvi · 07-07-2013, 11:19 PM

I dont mind to giving up on those 40hp if the car will be more enjoyable...
My previous turbo made lot of power at high end but the spool was very poor, This is not cool

I also have an option to replace the back AR to 64

huffandpuff00 · 07-08-2013, 01:58 AM

gt28rs w/ 64. for quickest spool but you'll run out of air quick. Im running a gt28rs w/ .86 and can hit 19bs around 4k rpm, but being that the compressor wheel is so small it is over spinning the wheel creating heat (ie killing power). I would get a gtx2867 or gt2871 if i had to do it again. The larger compressor can simply push a larger volume of air into the engine.

what turbo are u currently using?

Silvi · 07-08-2013, 06:00 AM

the current turbo is 2876.86
how much boost/power output is your setup?
Im planning to boost about 16-18 psi with external WG and get about 330 whp, with the current setup the boost is 22 psi and 400whp

huffandpuff00 · 07-08-2013, 12:04 PM

I'm at 19lbs 340hp/300trq
I would go gtx2867 if you have the funds or gt2871 if not. Both use the .64ar

Silvi · 07-08-2013, 01:24 PM

Thanks!
How about the T3 version of 2871 (.63)?

huffandpuff00 · 07-08-2013, 01:46 PM

The t3 .63 flows the same as t2 .86...

K_style · 07-08-2013, 02:08 PM

Of course you can get tons more information about GT2871r in the thread below.

http://zilvia.net/f/tech-talk/124925...-sr-motor.html

07-07-2013, 01:51 AM	#1
Silvi Leaky Injector Join Date: Nov 2011 Location: IL Posts: 133 Trader Rating: (0) Feedback Score: 0 reviews	GT28RS .86 vs GT2871R .64 I will be happy to hear from people who tried both about the differences. The spool is most important, The power is less. Thanks

07-07-2013, 03:10 AM	#2
Fries Zilvia FREAK! Join Date: May 2007 Location: Texas/or/Afghanistan Age: 37 Posts: 1,514 Trader Rating: (3) Feedback Score: 3 reviews	It seems you know the difference. Also theres a gt2871-sr20 thread to refer to. __________________

07-07-2013, 10:33 PM	#4
codyace Post Whore! Join Date: Dec 2004 Location: Poconos, PA Age: 40 Posts: 8,030 Trader Rating: (58) Feedback Score: 58 reviews	The disco potato does respond 'marginally' faster, but it's not anything worth giving up 40 hp and holding power to redline for. __________________ *Want Air Conditioning in your SR20 Swapped car? Check out www.sr20acbrackets.com for more information! Quest Alternator Conversions for SR20!* Check my Group Buy! Tired of lousy internal gates? Go external wastegate with one of my manifolds, Check out my group buy

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07-07-2013, 04:26 PM	#3
Silvi Leaky Injector Join Date: Nov 2011 Location: IL Posts: 133 Trader Rating: (0) Feedback Score: 0 reviews	Actually I dont really know how much difference between them. I know about the AR64, But Im interested to know about the 86 compared to 2871 AR64

07-07-2013, 11:19 PM	#5
Silvi Leaky Injector Join Date: Nov 2011 Location: IL Posts: 133 Trader Rating: (0) Feedback Score: 0 reviews	I dont mind to giving up on those 40hp if the car will be more enjoyable... My previous turbo made lot of power at high end but the spool was very poor, This is not cool I also have an option to replace the back AR to 64

07-08-2013, 01:58 AM	#6
huffandpuff00 Zilvia Addict Join Date: Jul 2006 Location: oregon Age: 39 Posts: 835 Trader Rating: (9) Feedback Score: 9 reviews	gt28rs w/ 64. for quickest spool but you'll run out of air quick. Im running a gt28rs w/ .86 and can hit 19bs around 4k rpm, but being that the compressor wheel is so small it is over spinning the wheel creating heat (ie killing power). I would get a gtx2867 or gt2871 if i had to do it again. The larger compressor can simply push a larger volume of air into the engine. what turbo are u currently using?

07-08-2013, 06:00 AM	#7
Silvi Leaky Injector Join Date: Nov 2011 Location: IL Posts: 133 Trader Rating: (0) Feedback Score: 0 reviews	the current turbo is 2876.86 how much boost/power output is your setup? Im planning to boost about 16-18 psi with external WG and get about 330 whp, with the current setup the boost is 22 psi and 400whp

07-08-2013, 12:04 PM	#8
huffandpuff00 Zilvia Addict Join Date: Jul 2006 Location: oregon Age: 39 Posts: 835 Trader Rating: (9) Feedback Score: 9 reviews	I'm at 19lbs 340hp/300trq I would go gtx2867 if you have the funds or gt2871 if not. Both use the .64ar

07-08-2013, 01:24 PM	#9
Silvi Leaky Injector Join Date: Nov 2011 Location: IL Posts: 133 Trader Rating: (0) Feedback Score: 0 reviews	Thanks! How about the T3 version of 2871 (.63)?

07-08-2013, 01:46 PM	#10
huffandpuff00 Zilvia Addict Join Date: Jul 2006 Location: oregon Age: 39 Posts: 835 Trader Rating: (9) Feedback Score: 9 reviews	The t3 .63 flows the same as t2 .86...

07-08-2013, 02:08 PM	#11
K_style Post Whore! Join Date: Dec 2007 Location: Henderson, NV Posts: 7,666 Trader Rating: (63) Rides Gallery: K_style Feedback Score: 63 reviews	Of course you can get tons more information about GT2871r in the thread below. http://zilvia.net/f/tech-talk/124925...-sr-motor.html