What Turbo do I have? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

mikaelrules · 08-30-2008, 04:06 AM

Sorry for the noob question, but I recently got a 1998 S14 with an aftermarket turbo on it, except I'm not quite sure what it is. I can't really take a good look at it without taking it apart since it's a bottom mount. All I know that it's either an HKS GT-SS (similar to GT28RS) or HKS GT-RS (GT2871R). I don't know the characteristics of either turbo, all I know is that the GT-RS is bigger.

Currently it reaches full boost (14.5 psi) at about 4000-4500rpm and it's been dynoed on a Dynojet with 250whp. It has stock internals, an HKS intercooler, exhaust and intake and an URAS manifold, uppipe and downpipe.

Based on this information alone, what turbo do you guys think it might be?

riubens · 08-30-2008, 06:27 AM

if you could take a pic of the front housing we will have a better idea.

mikaelrules · 08-30-2008, 09:27 AM

These are the best pictures I can take. I hope you guys can judge by the size of the turbo relative to everything else (?). For what it's worth, I can only get the part number of the actuator, which is 17230-015100.

dangermouse73 · 08-30-2008, 10:14 AM

Not an expert but sounds like a good old GT28R.

Sileighty_85 · 08-30-2008, 12:00 PM

Yeah 250whp @ 14 psi its a Stock T28

s13dan · 08-30-2008, 01:15 PM

If you hit 14.5 psi at 4000-5000rpm it sure as hell is nothing close to a gt28rs... I have one and ill hit that by lil over 3000rpm, so i would say t28.

mikaelrules · 08-30-2008, 07:07 PM

Thanks guys. I figured it was probably something close to stock rather than the GT-RS the previous owner was claiming.

08-30-2008, 04:06 AM	#1
mikaelrules Join Date: Jul 2008 Location: Manila Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	What Turbo do I have? Sorry for the noob question, but I recently got a 1998 S14 with an aftermarket turbo on it, except I'm not quite sure what it is. I can't really take a good look at it without taking it apart since it's a bottom mount. All I know that it's either an HKS GT-SS (similar to GT28RS) or HKS GT-RS (GT2871R). I don't know the characteristics of either turbo, all I know is that the GT-RS is bigger. Currently it reaches full boost (14.5 psi) at about 4000-4500rpm and it's been dynoed on a Dynojet with 250whp. It has stock internals, an HKS intercooler, exhaust and intake and an URAS manifold, uppipe and downpipe. Based on this information alone, what turbo do you guys think it might be?

08-30-2008, 06:27 AM	#2
riubens Join Date: Feb 2006 Location: birmingham Posts: 37 Trader Rating: (0) Feedback Score: 0 reviews	if you could take a pic of the front housing we will have a better idea. __________________ Dominicano de pura sepa

08-30-2008, 10:14 AM	#4
dangermouse73 Leaky Injector Join Date: Nov 2004 Location: Marietta, GA Age: 51 Posts: 131 Trader Rating: (0) Feedback Score: 0 reviews	Not an expert but sounds like a good old GT28R. __________________ virjinjorj.com, dragonmouse.com, acceso.com

08-30-2008, 12:00 PM	#5
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	Yeah 250whp @ 14 psi its a Stock T28 __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

08-30-2008, 01:15 PM	#6
s13dan Zilvia FREAK! Join Date: Aug 2003 Location: Springfield, Mo Posts: 1,519 Trader Rating: (2) Feedback Score: 2 reviews	If you hit 14.5 psi at 4000-5000rpm it sure as hell is nothing close to a gt28rs... I have one and ill hit that by lil over 3000rpm, so i would say t28. __________________ 89 240sx hatch #933-the hot rod 91 240sx coupe #131,603-the daily

08-30-2008, 09:27 AM	#3
mikaelrules Join Date: Jul 2008 Location: Manila Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	These are the best pictures I can take. I hope you guys can judge by the size of the turbo relative to everything else (?). For what it's worth, I can only get the part number of the actuator, which is 17230-015100.

08-30-2008, 07:07 PM	#7
mikaelrules Join Date: Jul 2008 Location: Manila Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	Thanks guys. I figured it was probably something close to stock rather than the GT-RS the previous owner was claiming.