370z Dyno'ed w/ Chart! 12.18.08
 

http://img389.imageshack.us/img389/3694/57047101jv3.jpg

http://img389.imageshack.us/img389/5894/11305808fi2.jpg

http://img389.imageshack.us/img389/1325/32108462kp2.jpg

Many thanks goes to 370zfanatic and the370z.net

wow thats pretty good... assuming that means it puts out 280 to the wheels?

ps is a higher rating than HP iirc.. not much though.

and the first pic looks like a chop

That's a dynapack too so it's not comparable to other dyno's including the more popular dynojet.

Dynapacks always put out higher numbers...

Is it just me or do the HR's dyno similar HP numbers on Dynapack? I remember seeing two at 280 to 290 HP stock. I hope I'm mistaken.


EDIT: Found the thread I was thinking about. http://g35driver.com/forums/g35-seda...o-results.html

Did anyone notice it has the non-sport wheels? Not 100% sure about the models, but wouldn't that mean it's the 7AT and not the 6MT?? That would definitely affect the dyno reading.

You can get 6MT with or without the optional sport package. There are two trims: BASE and TOURING. Both have 7AT and 6MT as options. Work pwnage... can't see dynos! Blue balls...

I personally don't care much about how much power it makes, but I would definitely compare the DE, REV-UP, HR, and VHR power bands.

Why does it have volks in the first pic but not the second?

Stop bringing reality into this!

Too many unknown details, I'll wait for more reliable dyno's to come out.

this pull was done in 3rd? I guess they selected which ever gear gave them the best results. Results may vary in 4th and 5th (5th I'm assuming is 1:1)

Jon

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'08 G37S Black/Black 6MT | Premium | Navi

Get your wrong on:

http://www.sheepholetees.com/main.php

5th is 1:1 on the 6 speed so that would be the correct gear to pull in. This seems a lil bit suspect all around.

I agree with Bryan about this being fishy. Dyno'ing in a lower gear will usually give you higher numbers.

As always, there are too many different ways to do dynos and they're mainly good for testing gains when you slap performance parts on, and that's only true if you come back to the same dyno everytime after each change. They way dynos are done are, to me, like conducting an experiment many different ways to get the results you want rather than the actual.

jon
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'08 G37S Black/Black 6MT | Premium | Navi

Get your wrong on:

http://www.sheepholetees.com/main.php

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.

As part of ensuring accuracy on Dynopacks, you can specify the gear ratio on the car. As a result, technically you could dyno in 2nd gear, the problem would not be so much inflated power numbers as much an erratic graph.

My issue is that if it is calibrated as a normal Dynapack, why is it only making 280? I'd definitely expect at least 300 hp on a Dynapack and hope that this particular one was simply calibrated as a Dynojet in which case 280 would not be too bad.

If I remember right, that's what the G37s are putting down. The Z is rated at 332, the G at 330, so 280's pretty close.

jon
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'08 G37S Black/Black 6MT | Premium | Navi

Get your wrong on:

http://www.sheepholetees.com/main.php

You must have completely missed my rant about Dynapack vs. Dynojets. Yes, if it was a Dynojet, it should be making around 280 hp - not a problem. But given that most dynopacks read 8% to 10% higher, this should be making around 300 at least.

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.

Usually Dynapacks do read a bit higher than dynojets. But Dynapacks can read lower than dynojets if they are calibrated that way.

I've dyno'd my car at two different shops with two different calibrations on their dynapacks on one of them read 280 rwhp whereas the other one read 255 rwhp. That's with the same exact mods. (The owner claimed their calibration was much more conservative).

Bahaha, these volks have the 350z brakes behind them...

http://img389.imageshack.us/img389/3694/57047101jv3.jpg

Peep the front wheels....seems as if the volks have dissapeared.

http://img389.imageshack.us/img389/5894/11305808fi2.jpg




:icon18::icon18::icon18:

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.

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

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! :-)

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.

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??

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.

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?

280 would be disapointing if this were true...i would be like goodbye 370 hello Nismo..

wat

WTF are you talking about?

When will anyone understand that dyno numbers arbitrary?

The comprehension level...
 

of the arbitrariness of dyno comparisons is relative concept :bowrofl:.

Just to compare, here is my dyno sheet of my stock curve then after I got tuned on a stock NISMO 350z.

http://photos.smugmug.com/photos/435756258_9ekSt-XL.jpg

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...

But that arbitrary number has a great effect on my self esteem and peer acceptance on the forum. j/k :icon17:

back from the dead!

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.

How do you do a dyno in Florida and end up with kg/m and PS? I don't even know what that means.

This thread is over a year old. How the hell did a guy with a 7000 post count bump this?

It's last bump was well less than a year ago. It came up on the "new posts" list...so I posted in it, I don't look at the date when it comes up in the "new post list"....

3 cars you say?

Post up your quarter mile times big shot.

This would actually be an extremely interesting graph to see.

Anybody got the time, resources or link* to(for) one of these?

back from the graveee....

Is there truth behind 2014 and newer have more hp? Saw it on Z1 vid. Seems makes sense to me that my 4th Z will be a higher model

Link the vid.

2014+ have the same 332 and 350 power built since 2009.

What’s the diff anyways.... thought you were buying the turbo Z as your 4th Z.

Go to Z1 website and click on 370z intake and watch the clip. Now I'm set on a 370z. Honestly after owning 3 350zs, one NA, one nitrous and last supercharged, i don't see my gain with owning another,plus buying a TT Z is...let's be real...... Crazy to buy one without knowing who installed, tuned and even then it's a crap shoot. However now a 370 with 16k miles stock beside art pipes and stillen exhaust. Sign me up