[Equinox] Nismo dyno progression journal

Equinox · 02-11-2011, 11:32 AM

Well, I've been deployed for about 10 months now, and I'm on a 2 week vacation. I was finally able to get my Nismo dyno'd with the GTM 3" cat back exhaust on it. I have a baseline, but that dyno was done at Z1 Motorsports in Georgia. My local shop i Texas has a Dynojet dyno just like Z1, but there is no telling if either dyno's are throwing different numbers. Anyways, I'll be using my local shop from now on. I won't be able to get any more dyno's until I finish my deployment in June, but atleast for now, I have a base line, and a catback exhaust chart to check out. Enjoy!

Baseline Dyno from Z1 Motorsports at ~ 2,000 miles

274.2 whp @ ~ 2,000 miles, 227.5 wtq

GTM 3" cat-back true dual exhaust at Precision Tire in Texas at ~ 6,000 miles
(dyno chart to be posted, the shop has been stringing me along for 3 days promising me the chart, they ran out of ink, and won't let me use my thumb drive. ******* hate these people.)
302 whp @ ~ 6,000 miles
Comments on the GTM Exhaust: Now this exhaust is intended for use with their turbo application, which I intend to eventually get, but for fun, I got the exhaust first, while I wait to get the turbo system - make the car sound better in the mean time. Now a 28 whp gain just from a catback exhaust is huge, BUT supposedly VQ motors actually gain horsepower with break in. So 10 or 15 of that horsepower was probably just the break in from 2k miles to 6k miles. 274whp is a low stock dyno for any 370, including the Nismo, so I suspect break in HP is the culprit.

More to come!

Nismo370 · 02-11-2011, 09:01 PM

Nice numbers with just a catback...

'10Anamoly · 02-17-2011, 07:14 AM

I am sure you got plenty of gains but I would not compare baseline dynos vs modded dynos at different shops, too much potential variance. Head back to Z1 on March 19th for a $30 dyno and see if you put down 300+ there. it would be a more realistic dyno gains estimate, but again even that depends on temperatures, humidity, etc.

Equinox · 02-17-2011, 03:11 PM

Quote:

Originally Posted by '10Anamoly

I am sure you got plenty of gains but I would not compare baseline dynos vs modded dynos at different shops, too much potential variance. Head back to Z1 on March 19th for a $30 dyno and see if you put down 300+ there. it would be a more realistic dyno gains estimate, but again even that depends on temperatures, humidity, etc.

Not going to happen, I live in Texas now instead of Alabama, and I'll be in South Korea, as I am now, in March

Atleast they are both dyno jets

02-11-2011, 11:32 AM	#1 (permalink)
Equinox Track Member Join Date: Jul 2009 Location: Beaumont, TX Posts: 685 Drives: 06 Porsche Carrera S Rep Power: 17	[Equinox] Nismo dyno progression journal Well, I've been deployed for about 10 months now, and I'm on a 2 week vacation. I was finally able to get my Nismo dyno'd with the GTM 3" cat back exhaust on it. I have a baseline, but that dyno was done at Z1 Motorsports in Georgia. My local shop i Texas has a Dynojet dyno just like Z1, but there is no telling if either dyno's are throwing different numbers. Anyways, I'll be using my local shop from now on. I won't be able to get any more dyno's until I finish my deployment in June, but atleast for now, I have a base line, and a catback exhaust chart to check out. Enjoy! Baseline Dyno from Z1 Motorsports at ~ 2,000 miles 274.2 whp @ ~ 2,000 miles, 227.5 wtq GTM 3" cat-back true dual exhaust at Precision Tire in Texas at ~ 6,000 miles (dyno chart to be posted, the shop has been stringing me along for 3 days promising me the chart, they ran out of ink, and won't let me use my thumb drive. ***** hate these people.) 302 whp @ ~ 6,000 miles Comments on the GTM Exhaust: Now this exhaust is intended for use with their turbo application, which I intend to eventually get, but for fun, I got the exhaust first, while I wait to get the turbo system - make the car sound better in the mean time. Now a 28 whp gain just from a catback exhaust is huge, BUT supposedly VQ motors actually gain horsepower with break in. So 10 or 15 of that horsepower was probably just the break in from 2k miles to 6k miles. 274whp is a low stock dyno for any 370, including the Nismo, so I suspect break in HP is the culprit. More to come! __________________ Check out my Albums '13 Subaru WRX STi \| '06 Porsche 911 Carrera S (SOLD) \| '96 Mazda RX-7 6.0L V8 RHD (SOLD) \| '09 Nissan Nismo** #0058 (SOLD) Last edited by Equinox; 02-11-2011 at 12:01 PM.

02-17-2011, 07:14 AM	#3 (permalink)
'10Anamoly Track Member Join Date: May 2010 Location: GA Posts: 882 Drives: 2010 370Z BS M6 Rep Power: 15	I am sure you got plenty of gains but I would not compare baseline dynos vs modded dynos at different shops, too much potential variance. Head back to Z1 on March 19th for a $30 dyno and see if you put down 300+ there. it would be a more realistic dyno gains estimate, but again even that depends on temperatures, humidity, etc. __________________ 2013 Ford Mustang GT 374rwhp, 360rwtq SAE / GT500 Axle-Backs / Brembo Pack / Track Pack / Recaros / 6spd

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02-11-2011, 09:01 PM	#2 (permalink)
Nismo370 Enthusiast Member Join Date: Sep 2009 Location: Dont Worry Bout It... Posts: 333 Drives: 09 370Z NismoTT Rep Power: 15	Nice numbers with just a catback...