New VQ37HR DYNO FROM G37 ! ! ! ! WOOOOOOOW! ! ! !
05-22-2007, 04:44 AM
#24
Originally Posted by VandyZ
Nissan has said new Z in 2009 as a 2010 model. No specifics yet on the engine, but they said it will be new for 2010, so I am sure the 3.7L will be old news by then. 
05-22-2007, 07:53 PM
#28
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Originally Posted by Damon_Chambers
im more concerned w/ forced induction.
05-22-2007, 09:08 PM
#29
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wow...365hp at 3.7L??? almost at the coveted 100hp per liter mark...i think more aggresive cams and higher redline will do the trick...the tq will suck though...lol.
05-25-2007, 05:25 PM
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What irresoponsible publication by Motor Authority. 365hp @ the flywheel and 25% drivetrain loss for the 6mt? 
I would like to see some emperical data on that.
I would like to see some emperical data on that.
05-25-2007, 06:30 PM
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Originally Posted by diwun67
It's closer to about 350hp at the crank. Still impressive.
Nissan, a company not traditionally known for underrating, has already publicly released the figure of ~330hp crank in the press release. Given past records, this figure is usually within a few hp of the official rating pending certification and approval. Anything north of say 336 is probably a pipe dream.
Last edited by THX723; 05-25-2007 at 06:33 PM.
05-25-2007, 06:44 PM
#34
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Originally Posted by THX723
I must be again missing something here and must ask where is this 350 figure coming from?
Nissan, a company not traditionally known for underrating, has already publicly released the figure of ~330hp crank in the press release. Given past records, this figure is usually within a few hp of the official rating pending certification and approval. Anything north of say 336 is probably a pipe dream.
Nissan, a company not traditionally known for underrating, has already publicly released the figure of ~330hp crank in the press release. Given past records, this figure is usually within a few hp of the official rating pending certification and approval. Anything north of say 336 is probably a pipe dream.
What's so hard to understand?
05-26-2007, 01:36 AM
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Originally Posted by diwun67
350 - ~17% drivetrain loss is 290.5whp, close to the 287whp it put down on a dyno in these vids from another thread https://my350z.com/forum/showthread.php?t=273510
What's so hard to understand?
What's so hard to understand?
If we must play the drivetrain loss voodoo magic game, then it ought to look more like the following:
"Non Rev-up" VQ35DE
Factory rating: 275hp SAE*
Automobile Dynojet rating: 236hp
--> calculated drivetrain loss = ~14.2%
VQ37VHR
Automobile Dynojet rating: 287hp
assuming the particular '08 G35 coupe has similar drivetrain loss @ ~14.2%
--> calculated crank/flywheel power = ~334hp SAE
Coincidence (to the preliminary factory 330hp rating)? Not likely, especially given the +/-3% precision at play for typical chassis dynos.
*Note: based on revised SAE power measurement rating and certification (not to be confused with SAE dyno corrections).
The fact of the matter is modern manual transmission typically do not give up much more than 10% in efficiency. 4-5% of lost from tire to Dynojet roller interface is not uncommon.
Last edited by THX723; 05-26-2007 at 01:50 AM.
05-26-2007, 07:12 AM
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You mean bending over and taking it by the dealer. Hell yea! Nah I didn't loose that much when I got the 07. So we will see. Thats also a year or two from now so who knows what will happen.
