DDMotorsports Shop 370Z Baseline Dyno - UGLY Torque Curve

M.Bonanni · 01-23-2009, 07:39 PM

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.

Crash · 01-23-2009, 07:47 PM

Yikes!!! Tune tune tune!!!!

Neo187H · 01-23-2009, 08:29 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, 08:31 PM

Quote:

Originally Posted by Neo187H

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, 08:32 PM

^^^ Yes.

M.Bonanni · 01-23-2009, 08:37 PM

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

dad · 01-23-2009, 08:55 PM

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

435 torque, yeaaaaa!

shumby · 01-23-2009, 09:50 PM

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

Lug · 01-23-2009, 09:56 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..

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

frost · 01-23-2009, 10:09 PM

Tooooooo ugly to be right

Namir · 01-23-2009, 11:26 PM

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

re dyno?

AK370Z · 01-23-2009, 11:39 PM

Nice numbers

. 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?

Skaterbasist · 01-23-2009, 11:46 PM

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

Slidefox · 01-24-2009, 12:02 AM

Through some VP16 in that bad boy!!

Ryephile · 01-24-2009, 12:04 AM

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.?

01-23-2009, 07:39 PM	#1 (permalink)
M.Bonanni The370Z.com Sponsor Join Date: Nov 2008 Location: Las Vegas Posts: 2,575 Drives: Fast Rep Power: 1321	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. __________________ MikeBonanni.com Twitter: http://www.twitter.com/MikeBonanni Facebook: http://www.facebook.com/MBonanni36 Function > Form Last edited by M.Bonanni; 01-29-2009 at 12:41 PM.

01-23-2009, 07:47 PM	#2 (permalink)
Crash A True Z Fanatic Join Date: Dec 2008 Location: Los Angeles Posts: 1,853 Drives: 02 Corvette Z06 Rep Power: 589	Yikes!!! Tune tune tune!!!! __________________ 2002 Corvette Z06 - Totaled 2003 Corvette Z06 50th Anniversary

01-23-2009, 08:32 PM	#5 (permalink)
Crash A True Z Fanatic Join Date: Dec 2008 Location: Los Angeles Posts: 1,853 Drives: 02 Corvette Z06 Rep Power: 589	^^^ Yes. __________________ 2002 Corvette Z06 - Totaled 2003 Corvette Z06 50th Anniversary

01-23-2009, 08:37 PM	#6 (permalink)
M.Bonanni The370Z.com Sponsor Join Date: Nov 2008 Location: Las Vegas Posts: 2,575 Drives: Fast Rep Power: 1321	They had a 750whp Mustang on the dyno right before me and it was reading just fine. Go figure... __________________ MikeBonanni.com Twitter: http://www.twitter.com/MikeBonanni Facebook: http://www.facebook.com/MBonanni36 Function > Form

01-23-2009, 08:55 PM	#7 (permalink)
dad Grand Prix of Endurance Join Date: Nov 2008 Location: Tennessee Posts: 3,476 Drives: Mulsanne Straight Rep Power: 26	Something is not right, I've never seen one like that. 435 torque, yeaaaaa! __________________ We can do without any article of luxury we have never had; but once obtained, it is not in human nature to surrender it voluntary.

01-23-2009, 08:29 PM	#3 (permalink)
Neo187H Enthusiast Member Join Date: Jan 2009 Location: Albany, NY Posts: 302 Drives: PW 370Z Rep Power: 16	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?

01-23-2009, 09:50 PM	#8 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 44 Posts: 6,288 Drives: your sister Rep Power: 236	ya I say sensor glitch in your dyno. The curve looks right if you through out the spikes. __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

01-23-2009, 09:56 PM	#9 (permalink)
Lug A True Z Fanatic Join Date: Dec 2008 Location: Texas Posts: 1,926 Drives: 2006 350Z Rep Power: 19	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.. Numbers are close if you leave ou the spikes on yours. Last edited by Lug; 01-23-2009 at 10:01 PM.

01-23-2009, 11:26 PM	#11 (permalink)
Namir Track Member Join Date: Nov 2008 Location: OH and VA Posts: 627 Drives: 09 G37S 6MT Rep Power: 256	I'm gonna go ahead and say something's not right with that curve...... re dyno? __________________ Ambition is the path to success. Persistence is the vehicle you arrive in. G37S\|6MT\|PREM\|NAV\|Eibach\|Ichibia\|Injen

01-23-2009, 11:39 PM	#12 (permalink)
AK370Z Administrator Join Date: Sep 2008 Location: NJ Posts: 9,930 Drives: 09 370Z MB Sports M6 Rep Power: 10	Nice numbers . 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? __________________ The370Z Signature Pictures ll Want to rock our forum decals on your car? Then click here! ll How to Embed YouTube Videos In a Post STOP! (Hammertime) ll Become a Premium Member Click HERE ll F.A.Q. Are You a Nissan Dealer? Click Here to Become A "Supporting Dealer" and Start Listing Your 370Zs In Our Inventory Section My Monterey Blue Z ll My Exhaust --> My Intake --> G3 Nissan's Official Response Regarding Oil Temp Issue: CLICK HERE Need a Set of Cheap Winter wheels /Tires? Then Visit The Banner Link Below and Place Your Order. You'll Help Keep The370Z Alive.

01-23-2009, 11:46 PM	#13 (permalink)
Skaterbasist Base Member Join Date: Dec 2008 Location: SoCal Posts: 99 Drives: 06 G35 Coupe 6MT Rep Power: 267	Nothing is wrong with the car. What needs fixing is the dyno (most likely a software issue)

01-24-2009, 12:02 AM	#14 (permalink)
Slidefox Previous Moderator Join Date: Nov 2008 Location: Arizona Posts: 1,534 Drives: A Pony Rep Power: 214	Through some VP16 in that bad boy!! __________________ Forum Rules: Click Here Before Posting Click Here to Become a Premium Member Go Turbo or Go Home!!//Cowboys 2012 Superbowl Champs// Suns 2012 NBA Champions

01-24-2009, 12:04 AM	#15 (permalink)
Ryephile Base Member Join Date: Nov 2008 Location: Metro-Detroit Posts: 23 Drives: '02 Cooper S Rep Power: 17	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.? __________________

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
GT Motorsports Dyno the First 370Z in the US: 290 RWHP!!! (Approx.)	AK370Z	Nissan 370Z General Discussions	39	01-24-2009 08:00 PM
Audio shop in Japan strips a Z34 370Z	AK370Z	Audio & Video	12	01-18-2009 01:58 AM