GT Motorsports: Upgraded APS TT, FCon Vpro, GTM Longblock

George@GTM · 11-18-2007, 07:39 PM

This car was built a little over a year and half ago. Over 8,000 miles on our GTM Stage 1 long block, still urning strong, and making good power. Car came in because it was having some smoking issues recently. The owner (Crom) decided to bring it in so we can diagnose the problem. Their were 2 possibilities, either a engine issue or a turbo problem. We did preform a compression and leak down check, everything was perfect, even the spark plugs showed signs of a good burning engine with no traces of oil.

We did send the turbos to get inspected, during the inspection it was determined that one of the seals had gone bad. The turbos could have been sent to APS to see if they would warranty them, but there was no idea on how long that could possibly take. With Crom knowing that we decided to have them rebuilt with a 2871R cartridge. Turn around time to get the turbos rebuilt was only 10 days so this was the fastest way to get the job done.

The turbos were changed, car was checked over, and then re-tuned. Car is running great just as the first day it left the shop, we hope Crom is happy!

"Crom"

2003 Nissan 350Z

HKS FCon VPro
HKS Knock Amp
HKS EVC 5
Defi Display Link & Gauges
TEIN Flex w/ EDFC
Pathfinder Cooling Mod
CJM Stage 1 Fuel system
GTM Stage 1 Shortblock
GTM Stage 1 Heads
JWT S1 Camshafts
APS Plenum
APS Twin Turbo System
Aquamist W/I System

Conservative 91 Octane Tune 14psi & 12psi:

Images of the car, Enjoy!:

Hexxum001 · 11-18-2007, 07:59 PM

Very nice!! That's a great looking dyno! Congrats Crom! Another great job by GTM.

Alberto · 11-18-2007, 08:04 PM

Nice numbers, awesome power curve, spaceship like taillights.

Crom · 11-18-2007, 08:22 PM

Thanks Sam...totally appreciate all of your last minute checks and balances even though you were really stretched for time...the smoking during traffic going to hollywood during the day just got worse and worse, and i knew something was wrong. Your patience w/ this car has truly been tested over the past couple of years and its def been a long journey..I promise to stop modding it soon to give you some piece of mind. Thanks for everything....

THE ROADSTER · 11-18-2007, 08:31 PM

what is that light behind the steering wheel ?

rcdash · 11-18-2007, 08:36 PM

Car looks amazing - nice work, great tune.

So what's the guess on why the turbo seal went bad? And is there anything done (can be done) to prevent it from happening again? Finally what's the cost of "cartridge replacement"?

Thanks.

TayTaythatsme04 · 11-18-2007, 09:35 PM

Quote:

Originally Posted by THE ROADSTER

what is that light behind the steering wheel ?

Looks like a shift light

T

Crom · 11-18-2007, 10:32 PM

^... its just the warning sensor hooked up to the defi rig.....

Crom · 11-18-2007, 10:40 PM

Quote:

Originally Posted by rcdash

Car looks amazing - nice work, great tune.

So what's the guess on why the turbo seal went bad? And is there anything done (can be done) to prevent it from happening again? Finally what's the cost of "cartridge replacement"?

Thanks.

I have no idea...I don't even push the car that hard...drive it a couple times a week w/ one track day...w/ this setup...as for the cost, it wasn't cheap..although I could have went the other route by sending them back to APS..but I wanted a car for the holidays and even then there was no guarantee that they would warranty them.

unkn0wn ryder · 11-19-2007, 02:57 AM

is that the stock engine cover if not where did you get it from? the Z looks amazing btw...

unkn0wn ryder · 11-19-2007, 02:59 AM

Quote:

Originally Posted by THE ROADSTER

what is that light behind the steering wheel ?

i think thats the knock warning lite from TurboXS

tig488 · 11-19-2007, 06:20 AM

comparison numbers between the old turbos vs the new ones?

Crom · 11-19-2007, 01:45 PM

Quote:

Originally Posted by tig488

comparison numbers between the old turbos vs the new ones?

It was roughly the same...old setup was 545 at 13psi, new setup was 535 at 14psi...I think they were both 4th gear pulls but I could be wrong.

Crom · 11-19-2007, 01:46 PM

Quote:

Originally Posted by unkn0wn ryder

is that the stock engine cover if not where did you get it from? the Z looks amazing btw...

Thanks...just a cut stocker

tig488 · 11-19-2007, 04:13 PM

so it made less power at more boost? arent these new turbos bigger than the old ones?

Crom · 11-19-2007, 04:21 PM

Slightly bigger...I left it to the varying temp conditions.....

Devil Z · 11-19-2007, 05:09 PM

Quote:

Originally Posted by Crom

Thanks Sam...totally appreciate all of your last minute checks and balances even though you were really stretched for time...the smoking during traffic going to hollywood during the day just got worse and worse, and i knew something was wrong. Your patience w/ this car has truly been tested over the past couple of years and its def been a long journey..I promise to stop modding it soon to give you some piece of mind. Thanks for everything....

Crom, I had no idea that Z was yours. I absolutely love it!!! There were 2 Z's there that I absolutely fell in love with at first sight, yours and a Redline with Nismo V1 and Volk TE37 Time Attacks. Your car is absolutely gorgeous, and looks fawking mean/aggressive.

Congrats.

Crom · 11-19-2007, 06:00 PM

^ Thanks bro....totally appr it...that red z was cool too..it had some double pvc pipe attachment in the trunk...maybe it was the aquamist..pretty cool.

redlineryder · 11-19-2007, 06:54 PM

You have time to make this thread but won't post an update on the SEMA car thread

http://www.my350z.com/forum/showthread.php?t=298225

GlenRoseFireFighter · 11-20-2007, 10:07 AM

Quote:

Originally Posted by Crom

It was roughly the same...old setup was 545 at 13psi, new setup was 535 at 14psi...I think they were both 4th gear pulls but I could be wrong.

the video posted sounded like a 5th gear run which makes sense since that's the 1:1 ratio gear on 6MT's

11-18-2007, 07:39 PM	#1
George@GTM Sponsor GT Motorsports Join Date: Sep 2006 Location: California Posts: 1,690 iTrader: (7)	GT Motorsports: Upgraded APS TT, FCon Vpro, GTM Longblock This car was built a little over a year and half ago. Over 8,000 miles on our GTM Stage 1 long block, still urning strong, and making good power. Car came in because it was having some smoking issues recently. The owner (Crom) decided to bring it in so we can diagnose the problem. Their were 2 possibilities, either a engine issue or a turbo problem. We did preform a compression and leak down check, everything was perfect, even the spark plugs showed signs of a good burning engine with no traces of oil. We did send the turbos to get inspected, during the inspection it was determined that one of the seals had gone bad. The turbos could have been sent to APS to see if they would warranty them, but there was no idea on how long that could possibly take. With Crom knowing that we decided to have them rebuilt with a 2871R cartridge. Turn around time to get the turbos rebuilt was only 10 days so this was the fastest way to get the job done. The turbos were changed, car was checked over, and then re-tuned. Car is running great just as the first day it left the shop, we hope Crom is happy! "Crom" 2003 Nissan 350Z HKS FCon VPro HKS Knock Amp HKS EVC 5 Defi Display Link & Gauges TEIN Flex w/ EDFC Pathfinder Cooling Mod CJM Stage 1 Fuel system GTM Stage 1 Shortblock GTM Stage 1 Heads JWT S1 Camshafts APS Plenum APS Twin Turbo System Aquamist W/I System Conservative 91 Octane Tune 14psi & 12psi: Images of the car, Enjoy!: __________________ WWW.GTMPOWER.COM WWW.CiNcityDesigns.COM *- 700 WHP CLUB -* Last edited by George@GTM; 11-18-2007 at 08:06 PM.

11-18-2007, 07:59 PM	#2
Hexxum001 Registered User Join Date: Mar 2006 Location: Los Angeles Posts: 723 iTrader: (3)	Very nice!! That's a great looking dyno! Congrats Crom! Another great job by GTM. __________________ 2006 G35c 6MT Vortech Supercharged (with a lot of go fast goodies) by GT Motorsports

11-18-2007, 08:04 PM	#3
Alberto SHIFT_Blah Join Date: Mar 2003 Location: Maryland Posts: 19,695 iTrader: (12)	Nice numbers, awesome power curve, spaceship like taillights. __________________ 11.1@126mph old set-up low boost Wanna see my Z go 170+mph? Click Me *More Videos* Fixed & Tuned by PFSUPERCARS

11-18-2007, 08:22 PM	#4
Crom Valhalla Join Date: Sep 2004 Location: Huntington Beach Posts: 2,410 iTrader: (25)	Thanks Sam...totally appreciate all of your last minute checks and balances even though you were really stretched for time...the smoking during traffic going to hollywood during the day just got worse and worse, and i knew something was wrong. Your patience w/ this car has truly been tested over the past couple of years and its def been a long journey..I promise to stop modding it soon to give you some piece of mind. Thanks for everything.... __________________ 2003 SS APS TT, 5??RWH 535TRQ - DJ << TRACK HEADLIGHT COVERS >> http://www.my350z.com/forum/showthre...=350640&page=6

11-18-2007, 08:36 PM	#6
rcdash Master Join Date: Jul 2005 Location: Chapel Hill, NC Posts: 2,644 iTrader: (7)	Car looks amazing - nice work, great tune. So what's the guess on why the turbo seal went bad? And is there anything done (can be done) to prevent it from happening again? Finally what's the cost of "cartridge replacement"? Thanks. __________________ ForgedPerformance Built: Arias, Eagle, JWT-700bb, GTM-5AT, Haltech, Carbonetics LSD, Tein Monoflex. Greddy evoTT, and StopTech BBK.

11-18-2007, 08:31 PM	#5
THE ROADSTER Registered User Join Date: Sep 2003 Location: CORONA Posts: 752 iTrader: (2)	what is that light behind the steering wheel ?

11-18-2007, 10:32 PM	#8
Crom Valhalla Join Date: Sep 2004 Location: Huntington Beach Posts: 2,410 iTrader: (25)	^... its just the warning sensor hooked up to the defi rig..... __________________ 2003 SS APS TT, 5??RWH 535TRQ - DJ << TRACK HEADLIGHT COVERS >> http://www.my350z.com/forum/showthre...=350640&page=6

11-19-2007, 02:57 AM	#10
unkn0wn ryder Registered User Join Date: Oct 2005 Location: Maui, HI =>Killeen, TX =>IRAQ Posts: 689 iTrader: (0)	is that the stock engine cover if not where did you get it from? the Z looks amazing btw... __________________ No more PPW its now Glacier Frost Mica 350z TEAM DFINED http://www.dfined.com Special Thanks 2 STREETWORKS PERFORMANCE-Carlos,SGP RACING-Mark,INJECTED PERFORMANCE-Marty,RavSpec, & GTSpec-NoahZburnt SELFSPONSORED "the biggest fad is trying to be different" - C-*LoS*

11-19-2007, 06:20 AM	#12
tig488 Registered User Join Date: May 2003 Location: bama Posts: 3,731 iTrader: (18)	comparison numbers between the old turbos vs the new ones? __________________ proud owner of the first APS powered 240sx, not no more, im reaoch beaotch!

11-19-2007, 04:13 PM	#15
tig488 Registered User Join Date: May 2003 Location: bama Posts: 3,731 iTrader: (18)	so it made less power at more boost? arent these new turbos bigger than the old ones? __________________ proud owner of the first APS powered 240sx, not no more, im reaoch beaotch!

11-19-2007, 04:21 PM	#16
Crom Valhalla Join Date: Sep 2004 Location: Huntington Beach Posts: 2,410 iTrader: (25)	Slightly bigger...I left it to the varying temp conditions..... __________________ 2003 SS APS TT, 5??RWH 535TRQ - DJ << TRACK HEADLIGHT COVERS >> http://www.my350z.com/forum/showthre...=350640&page=6 Last edited by Crom; 11-19-2007 at 04:23 PM.

11-19-2007, 06:00 PM	#18
Crom Valhalla Join Date: Sep 2004 Location: Huntington Beach Posts: 2,410 iTrader: (25)	^ Thanks bro....totally appr it...that red z was cool too..it had some double pvc pipe attachment in the trunk...maybe it was the aquamist..pretty cool. __________________ 2003 SS APS TT, 5??RWH 535TRQ - DJ << TRACK HEADLIGHT COVERS >> http://www.my350z.com/forum/showthre...=350640&page=6

11-19-2007, 06:54 PM	#19
redlineryder Registered User Join Date: Jul 2007 Location: toronto Posts: 11 iTrader: (0)	You have time to make this thread but won't post an update on the SEMA car thread http://www.my350z.com/forum/showthread.php?t=298225