370z Dyno'ed w/ Chart! - Page 2 - MY350Z.COM Forums



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Old 12-19-2008, 12:43 PM   #21
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Originally Posted by skaterbasist View Post
Some of you act like if this motor is brand new. It's been on on the G37 for over a year. And it usually puts down 270-280 rwhp on your typical dynojet.
Correct. The VQ37 puts down a consistent 250whp on our Dyno Dynamics, and about 270-275 whp on a DynoJet.

I might expect a tad more out of the 370z, since we might experience slightly less drivetrain loss...shorter wheel base, shorter driveshaft..etc..etc.
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Old 12-19-2008, 08:12 PM   #22
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I thought the HR's put down 260-265hp. If thats true then 270-280 is kind of dissapointing for the 3.7. Maybe I'm just remembering HR numbers wrongly
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Old 12-20-2008, 12:10 PM   #23
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Quote:
Originally Posted by Sharif@Forged View Post
Correct. The VQ37 puts down a consistent 250whp on our Dyno Dynamics, and about 270-275 whp on a DynoJet.

I might expect a tad more out of the 370z, since we might experience slightly less drivetrain loss...shorter wheel base, shorter driveshaft..etc..etc.
Sharif, do you think you can provide us with overlay of dynos of the stock DE, Rev-Up, HR, and VHR (G37)? I currently have a relatively stock '03 Enthusiast and wonder what the power band is like. There are too many charts out there that are not consistent enough to compare. Also, how do we improve torque from something that has slightly more displacement?

Thanks! :-)
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Old 12-21-2008, 01:15 PM   #24
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That's pretty disappointing really Sharif. I was expecting 285-290whp.
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Old 12-21-2008, 02:15 PM   #25
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That's pretty disappointing really Sharif. I was expecting 285-290whp.
You gotta remember its a brand new car, not even close to being broke in.
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Old 12-21-2008, 02:19 PM   #26
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Originally Posted by 280z/300zx View Post
I thought the HR's put down 260-265hp. If thats true then 270-280 is kind of dissapointing for the 3.7. Maybe I'm just remembering HR numbers wrongly
What's there to be disappointed about? If you know anything about this car, it has the same engine that comes in the G37..

What the hell was everyone expecting?? Did you think they would put a magical version of the motor in the 370z??
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Old 12-21-2008, 02:20 PM   #27
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IIRC, the first HR Sharif dynoed was right at 245 whp on his DD. They added an exhaust and I "think" test pipes also.. and it got to ~260 or so whp.

Based upon this particular dyno, and if my memory is correct. I'm not seeing much to be all that happy about. Of course the peak doesn't tell the whole story, but still.
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Old 12-21-2008, 05:44 PM   #28
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Our dyno reads very low, compared to a typical DynoJet, or the high-on-crack dyno paks. So take the numbers with a huge grain of salt. The engine in the 370z should make the same power as the engine in the G37..they are identical in all respects. Really nothing to be dissappointed about guys.
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Old 01-12-2009, 09:50 AM   #29
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Quote:
Originally Posted by Sharif@Forged View Post
Our dyno reads very low, compared to a typical DynoJet, or the high-on-crack dyno paks. So take the numbers with a huge grain of salt. The engine in the 370z should make the same power as the engine in the G37..they are identical in all respects. Really nothing to be dissappointed about guys.
Thanks for the info. For comparison sake, what did stock 03-05s make on your dyno?
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Old 01-12-2009, 10:57 AM   #30
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280 would be disapointing if this were true...i would be like goodbye 370 hello Nismo..
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Old 01-12-2009, 11:01 AM   #31
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Quote:
Originally Posted by leg killa View Post
280 would be disapointing if this were true...i would be like goodbye 370 hello Nismo..
wat
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Old 01-12-2009, 11:32 AM   #32
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280 would be disapointing if this were true...i would be like goodbye 370 hello Nismo..

WTF are you talking about?
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Old 01-12-2009, 11:56 AM   #33
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When will anyone understand that dyno numbers arbitrary?
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Old 01-12-2009, 12:44 PM   #34
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Default The comprehension level...

of the arbitrariness of dyno comparisons is relative concept .
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Old 01-12-2009, 12:57 PM   #35
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Just to compare, here is my dyno sheet of my stock curve then after I got tuned on a stock NISMO 350z.

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Old 01-12-2009, 01:14 PM   #36
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Quote:
Originally Posted by Sharif@Forged View Post
The engine in the 370z should make the same power as the engine in the G37..they are identical in all respects. Really nothing to be dissappointed about guys.
What are you talking about? The 370Z has, like... 2 MORE HP!!!



Like you said, it should put out the exact same as a G37. There is a more compact driveline that may give a slightly higher reading. But on regular wheel-driven dynos, there will be some additional loss due to the wider tires. So it's all probably a wash... And I would assume this is a pretty "green" vehicle, and Nissan builds a tight engine... so this should be at the low end. But by no means, will it dyno much differently than a G37... I would bet the ecu tuning of the G37 and 370Z are pretty much the same...
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Old 08-21-2009, 08:58 AM   #37
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Originally Posted by tranceformer95 View Post
When will anyone understand that dyno numbers arbitrary?
But that arbitrary number has a great effect on my self esteem and peer acceptance on the forum. j/k
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Old 08-21-2009, 09:35 AM   #38
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back from the dead!
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Old 12-19-2009, 03:00 PM   #39
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Quote:
Originally Posted by ITR#203 View Post
Yes, but this is a Dynapack, not a Dynojet. Dynapacks, while generally considered more accurate, read about 8%-10% higher than Dynopacks and about 15%-20% higher than Mustang dynos, partially because the drivetrain loss of actually turning the wheels and the losses caused from transferring that power from the tires to the roller are no longer there - I have heard of Dynapacks being calibrated to give Dynojet numbers however. Also, when I say accurate it is not to say that the number it gives is better but rather that the results are more consistently repeatable, giving a better view of how much power you've actually added via mods when you dyno again and when comparing to other cars dynoed at the same place. I believe is the more useful way to use a dyno plot in most cases anyway, given that the day's conditions and calibration of different dynos can result in wildly different numbers even for the same car, make comparing different dyno plots from across the country an inexact science at best.
.
I'm going to soundly disagree with you here. I've been on all three dynos in question multiple times with my car at many different power levels and done lots of tuning. There might be differences, but it's not something you can stick a percentage on. If I applied your "percentage" difference rule to my car I would put down 75-100whp LESS on a Mustang vs a Dynapack. That is NOT the case at all, it's more like a 10whp difference in the mid 500s to the wheels.

The Dynojets I've been on have read very close to the Dynapack. The Mustang was every so slightly lower.

The only dynos that you can't fudge the results with calibrations or load are Dynojets since they are not load based dynos. They will read the most consistently. All the load based dynos (Mustang, DD, Dynapack) can have large fudge factors with calibrations and load in both directions so it's completely impossible to stick a percentage difference on them.
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Old 12-20-2009, 05:32 AM   #40
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How do you do a dyno in Florida and end up with kg/m and PS? I don't even know what that means.
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2009, 275, 370z, dyno, dynoed, g35, g37, graph, hp, lawrenceville, nissan, numbers, rwhp, sheet, whp

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