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-   -   DDMotorsports Shop 370Z Baseline Dyno - UGLY Torque Curve (http://www.the370z.com/nissan-370z-general-discussions/1530-ddmotorsports-shop-370z-baseline-dyno-ugly-torque-curve.html)

M.Bonanni 01-23-2009 06:39 PM

DDMotorsports Shop 370Z Baseline Dyno - UGLY Torque Curve
 
Took the shop 370Z down to get a baseline dyno while it is still stock. Numbers are 285.46whp and 243.40wtq (ignore the max torque number on the chart as it is inflated due to spikes).

Anyways, I was just as shocked as you probably are to see such an ugly and scary torque curve. This car is 100% stock and I am hoping that its just a bad batch of gas. Discuss.

http://www.doubledownmotorsports.com...edynochart.jpg

http://www.doubledownmotorsports.com...selinedyno.jpg

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Crash 01-23-2009 06:47 PM

Yikes!!! Tune tune tune!!!!

Neo187H 01-23-2009 07:29 PM

That doesn't seem right. How is the HP curve so smooth if the Tq curve is so jagged? Considering HP is just a calculation of Tq?

M.Bonanni 01-23-2009 07:31 PM

Quote:

Originally Posted by Neo187H (Post 23380)
That doesn't seem right. How is the HP curve so smooth if the Tq curve is so jagged? Considering HP is just a calculation of Tq?

Thats what boggles me too. Think its a software glitch?

Crash 01-23-2009 07:32 PM

^^^ Yes.

M.Bonanni 01-23-2009 07:37 PM

They had a 750whp Mustang on the dyno right before me and it was reading just fine. Go figure...

dad 01-23-2009 07:55 PM

Something is not right, I've never seen one like that.:icon14:


435 torque, yeaaaaa!

shumby 01-23-2009 08:50 PM

ya I say sensor glitch in your dyno. The curve looks right if you through out the spikes.

Lug 01-23-2009 08:56 PM

I also don't see how the HP could be so steady while the torque jumped all over the place like that.

On a dynojet from another thread..


http://www.z1motorsports.com/imageGa...line.sized.jpg

Numbers are close if you leave ou the spikes on yours.

frost 01-23-2009 09:09 PM

Tooooooo ugly to be right

Namir 01-23-2009 10:26 PM

I'm gonna go ahead and say something's not right with that curve......

re dyno?

AK370Z 01-23-2009 10:39 PM

Nice numbers :tup:. But as many suggested, redyno it. Run a full tank of 93 premium and then dyno may be? BTW, your 370Z is the best looking out of all (injected and GTM). I am a biggest Silver fanboi. Silver > ALL > White > Yellow.

When can we expect a video? :excited:

Skaterbasist 01-23-2009 10:46 PM

Nothing is wrong with the car. What needs fixing is the dyno (most likely a software issue)

Slidefox 01-23-2009 11:02 PM

Through some VP16 in that bad boy!! :tup:

Ryephile 01-23-2009 11:04 PM

Agreed Skaterbasist, the dyno itself looks to been erroring. I would have expected several pulls to be overlaid to show tolerance instead of one magic pull [or in this case, poor data pull]. If we ignore the spikes in the data, the torque curve looks fantastic; ruler flat and very good numbers in regard to rated engine output.


--->DDM; do you have the rest of the pulls that you did? Also, if that's not your dyno, they owe you clean error-free pulls! Also, did you do any datalogging to observe engine operation beyond roller numbers? Ignition timing, MAF, AFR, EGT, IAT, ECT, etc.?


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