GT Motorsports: 370Z Stock block testing, and turbo system development

3SeventyZ · 01-19-2009, 09:18 AM

In for some updates.

Cown3d · 01-19-2009, 11:59 AM

^same

George@GTM · 01-20-2009, 04:18 PM

Cat back exhaust testing should be complete this week.

Thanks guys!

-George
GT Motorsports

TerribleONE · 01-22-2009, 04:33 AM

pics and sound clips please.. :]

George@GTM · 01-23-2009, 06:34 PM

Soon

SAM@GTM · 01-24-2009, 06:29 AM

Here is the first version of our 2.5" GTM cat back with some dyno results and some pics, The car made 308 RWHP and 261.1 RWTQ with adding 2 degree's of timing via the consult III. The 370Z counties to impress us by how well it responding the modification we are making. We will be finalizing the GTM ecu flash for the 370Z within the next 10 days and i have no doubt that we can get other 10 to 15 RWHP with some tuning .

We have another week to finalize our GTM 3 " exhaust then we will move to the turbo kit .

Stay tuned

Sam

GTM 2.5" CATBACK EXHAUST

TerribleONE · 01-24-2009, 06:44 AM

nice..!

SAM@GTM · 01-24-2009, 06:54 AM

DYNO RESULTS

SOUND CLIP

YouTube - GTM 370Z CAT BACK WITH FACTORY CATS

Sam

GT MOTORSPORTS

WShade · 01-24-2009, 01:11 PM

Sounds fantastic as well. Preliminary price point, $1500 - $1800 with test pipes?

LiquidZ · 01-24-2009, 02:30 PM

Now this is how you show results.

P.S. What were the sparks flying out the back?

I think the next thing you guys need to do is weigh the exhaust. Its not going to be titanium like the Japan brands, but at the same time, it won't cost $4500 bucks.

Crash · 01-24-2009, 05:07 PM

Those numbers look great. You didn't loose any torque and in fact gained! Any idea what kind of numbers this would do without replacing the cats? I plan to keep my car smog-legal until I do the turbo.

Minicobra1 · 01-24-2009, 05:18 PM

Nice!! Who turned out the lights

Minicobra1 · 01-24-2009, 05:31 PM

I hope you guys can keep the cost reasonable, with so many people making SS catback exhaust for the 370z it's going to be a tuff choice.

I like the numbers and torque curve I'm seeing, I want something that will give some gains in the lower rpms as well. This car seams to need it, doesn't really come alive until after 5K RPM, and for a street car it would be better to have power come in a little lower.

Keep up the good work

Braden

PS: I know you guys are working on a TT for this, but any thoughts of a NA intake as well???

RCZ · 01-24-2009, 05:57 PM

I am impressed with the sound of the dyno pull that you have on youtube with your custom catback and test pipes. It sounds great! Power gains are very cool too, but I wish you hadn't added 2 deg of timing to get real results of the catback alone... Looks great, sounds great. If the price is right, I don't see why not.

LiquidZ · 01-24-2009, 06:03 PM

Make a thread about the new catback or I'll steal your thunder and make on myself!

01-19-2009, 09:18 AM	#16 (permalink)
3SeventyZ Track Member Join Date: Dec 2008 Location: MD/DE Posts: 626 Drives: 350Z, 370Z, SRT8 Rep Power: 476	In for some updates. __________________ 2009 Magnetic Black 370Z Sport 6MT

01-24-2009, 06:54 AM	#23 (permalink)
SAM@GTM NOT AN ACTIVE SPONSOR. DO NOT BUY Join Date: Dec 2008 Location: CALIFORNIA Posts: 913 Drives: 370Z Rep Power: 18	DYNO RESULTS SOUND CLIP YouTube - GTM 370Z CAT BACK WITH FACTORY CATS Sam GT MOTORSPORTS Last edited by SAM@GTM; 01-26-2009 at 08:05 PM.

01-24-2009, 01:11 PM	#24 (permalink)
WShade Track Member Join Date: Jan 2009 Location: San Antonio, TX Posts: 765 Drives: 09 370Z T/S/N Rep Power: 187	Sounds fantastic as well. Preliminary price point, $1500 - $1800 with test pipes? __________________ Q50S Q60 RS400

01-24-2009, 05:07 PM	#26 (permalink)
Crash A True Z Fanatic Join Date: Dec 2008 Location: Los Angeles Posts: 1,853 Drives: 02 Corvette Z06 Rep Power: 590	Those numbers look great. You didn't loose any torque and in fact gained! Any idea what kind of numbers this would do without replacing the cats? I plan to keep my car smog-legal until I do the turbo. __________________ 2002 Corvette Z06 - Totaled 2003 Corvette Z06 50th Anniversary

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01-19-2009, 11:59 AM	#17 (permalink)
Cown3d Base Member Join Date: Jan 2009 Location: Durham, NC Posts: 113 Drives: 87' Mazda rx7 TII Rep Power: 16	^same

01-20-2009, 04:18 PM	#18 (permalink)
George@GTM NOT AN ACTIVE VENDOR. DO NOT BUY Join Date: Dec 2008 Location: California Posts: 146 Drives: TTG41 Rep Power: 17	Cat back exhaust testing should be complete this week. Thanks guys! -George GT Motorsports

01-22-2009, 04:33 AM	#19 (permalink)
TerribleONE A True Z Fanatic Join Date: Jan 2009 Location: Socal Posts: 10,203 Drives: WOT Rep Power: 5850	pics and sound clips please.. :]

01-23-2009, 06:34 PM	#20 (permalink)
George@GTM NOT AN ACTIVE VENDOR. DO NOT BUY Join Date: Dec 2008 Location: California Posts: 146 Drives: TTG41 Rep Power: 17	Soon

01-24-2009, 06:29 AM	#21 (permalink)
SAM@GTM NOT AN ACTIVE SPONSOR. DO NOT BUY Join Date: Dec 2008 Location: CALIFORNIA Posts: 913 Drives: 370Z Rep Power: 18	Here is the first version of our 2.5" GTM cat back with some dyno results and some pics, The car made 308 RWHP and 261.1 RWTQ with adding 2 degree's of timing via the consult III. The 370Z counties to impress us by how well it responding the modification we are making. We will be finalizing the GTM ecu flash for the 370Z within the next 10 days and i have no doubt that we can get other 10 to 15 RWHP with some tuning . We have another week to finalize our GTM 3 " exhaust then we will move to the turbo kit . Stay tuned Sam GTM 2.5" CATBACK EXHAUST

01-24-2009, 06:44 AM	#22 (permalink)
TerribleONE A True Z Fanatic Join Date: Jan 2009 Location: Socal Posts: 10,203 Drives: WOT Rep Power: 5850	nice..!

01-24-2009, 02:30 PM	#25 (permalink)
LiquidZ A True Z Fanatic Join Date: Nov 2008 Location: Columbus, OH Posts: 1,940 Drives: Mag. Black 2009 370Z Rep Power: 705	Now this is how you show results. P.S. What were the sparks flying out the back? I think the next thing you guys need to do is weigh the exhaust. Its not going to be titanium like the Japan brands, but at the same time, it won't cost $4500 bucks.

01-24-2009, 05:18 PM	#27 (permalink)
Minicobra1 A True Z Fanatic Join Date: Nov 2008 Location: Orange County, CA. Posts: 1,205 Drives: 370Z Tour, Spt, 6mt Rep Power: 645	Nice!! Who turned out the lights

01-24-2009, 05:31 PM	#28 (permalink)
Minicobra1 A True Z Fanatic Join Date: Nov 2008 Location: Orange County, CA. Posts: 1,205 Drives: 370Z Tour, Spt, 6mt Rep Power: 645	I hope you guys can keep the cost reasonable, with so many people making SS catback exhaust for the 370z it's going to be a tuff choice. I like the numbers and torque curve I'm seeing, I want something that will give some gains in the lower rpms as well. This car seams to need it, doesn't really come alive until after 5K RPM, and for a street car it would be better to have power come in a little lower. Keep up the good work Braden PS: I know you guys are working on a TT for this, but any thoughts of a NA intake as well???

01-24-2009, 05:57 PM	#29 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	I am impressed with the sound of the dyno pull that you have on youtube with your custom catback and test pipes. It sounds great! Power gains are very cool too, but I wish you hadn't added 2 deg of timing to get real results of the catback alone... Looks great, sounds great. If the price is right, I don't see why not.

01-24-2009, 06:03 PM	#30 (permalink)
LiquidZ A True Z Fanatic Join Date: Nov 2008 Location: Columbus, OH Posts: 1,940 Drives: Mag. Black 2009 370Z Rep Power: 705	Make a thread about the new catback or I'll steal your thunder and make on myself!