MistAminER112

Hey guys,

I've been on MyG37 for a little while now but I never formally introduced myself, so I figured I'd do it with a few vids of some Stock Dyno Runs we pulled today...

Here's a video of the best run from today @ Speed Industry in Troy, Michigan:

(2011 Infiniti G37xS Sedan Stock Dyno Pull 2 @ Speed Industry - YouTube)

Car is completely stock and an exhaust is going on it tomorrow (if all goes well!)
Shall be installing a FI RTP & CF CBE. I wish I had a set of R2C's I could install, too, to see just how much they would add together.

As a side note, I was unable to do 2x Dyno's on the same day because they're pretty backed up at the shop. However, we should be expecting pretty similar 'temp' conditions tomorrow considering both days of dyno results will be indoors anyways...

During this particular pull which was the best pull, we got 224awhp & 201 Ib/Ft. Torque on an AWD Mustang Dyno. Unfortunately I didn't measure the temperature or humidity inside the building so I don't have that info. I'll try to get that tomorrow, however.

Thanks for watching and please feel free to ask any questions...

Once again I have no performance mods on the car, completely stock

Also, I got super lazy and didn't feel like busting out the old scanner to scan the Dyno sheet so I just took a picture of it from my iPhone

I have another video up of the Dyno where we did a pull in 5th gear but weren't able to complete the run because the car topped out at 150mph

FootLong

1). If the 37x is 100% rear wheel drive until slip is detected, how come all 4 were spinning for the dyno run

2) even if the awd drivetrain is a 20% loss, shouldnt our cars dyno around 262 at the wheels. I see it's a mustang dyno, but that seems really low

Ra_

iTrader: (2)

Very cool! Did you run into any issues with the AWD system on the dyno? Did you notice it starting out RWD and switch to AWD when it recognized rear slip? I just got my G37xS, and was curious how instant AWD turned on.

MistAminER112

I actually also felt like the numbers were low, but one of the tuners at the shop told me that the Mustang Dyno usually contributes to a good chunk of drivetrain loss(~5%)...it could also be the gears we used- 4th and 5th-might try to use 3rd tomorrow...not sure though, maybe someone else can chime in...though my 2008 G35x had similar power loss at approx 25-%30%

The AWD also kicked in basically immediately, really no lag time, really not sure why though...but no problems, Dyno went smoothly

Adam West

iTrader: (3)

Nice vid, thanks for posting up, great to see another X out there. Looking at your chart it seems a bit funny the rpm scale ends at 7200, the VQ37 revs up much higher than that. Also your power peak seems a bit low (~6500rpm) compared to what the factory claims max HP is at 7000rpm. Did you do the run in pure manual mode or use DS? Also, did you turn off the VDC?

TheLocNar

iTrader: (5)

Did my runs in 4th... 3rd reads too low, and 5th just takes too darn long. 4th is the best gear.

The fronts spin up immediately with throttle on the dyno. I wish I could explain why, but that's just how it is. lol

simonsez

dyno number is def. low.
Mine (same car) 7AT AWD ran 280ish after HFC/axleback/r2c + UpRev.

rpm&my_G35

I agree.
You should be seeing about a 15% loss, not +30%. Something isn't adding up here.

MistAminER112

Thanks alot for the responses, guys, did a second set of Dyno's today after the Fast Intentions CBE install and while we were pulling a few Dynos I spoke to the Tuner on staff and he was saying that they've compared their Dyno results with other shops who have the Mustang AWD Dynamometer and he told me that their results vary up to 15% in comparison.
SO, assuming 15% IS accurate, I should be looking more towards 272AWHP instead of 224AWHP(wishful thinking?).

And yes we ran with the VDC completely off (If you hold the VDC button for 10 seconds it turns off VDC + Traction Control) and the pulls were all done with the Manual mode engaged...

00Max00

I guess the snow switch was accidentally engaged, that would explain why AWD kicked in immediately and why the number was so low.

rsi-g37xs

AWD Kicks in Immediately with or without the snow switch engaged. When I dynoed my 09xS Sedan, the AWD kicked in less than a second after the rear wheels started spinning, it was almost instant.

rsi-g37xs

Also You can't take what one dyno reads compared to another as there are just way to many variables and differences between all the different dyno's. Some read high, some low, some do not account for weather/humidity conditions, some do. There are Dyno Jet Dyno's, Mustang Dyno's etc. There are just too many differences and variables to really compare one to another. The best thing to do is take that number as a starting point and see how much the mods add. As a reference my 09 put down 256 awhp and 222 lb/ft with a K&N intake installed, run was done in 3rd gear with temps of 54 degrees and humidity at 22%, these numbers are also corrected for elevation as I'm at 5200ft above sea level. To give you an idea of how much elevation affects the #'s uncorrected the car was at 213 awhp and 185 lb/ft

TheLocNar

iTrader: (5)

Every dyno will read differently. The importance is the difference on the same dyno after the mods. It's all about your specific gains.

TinsleyC

Really?? Is this particular to any years or models?

MistAminER112

Honestly I'm not sure, this was the first time I had heard of it, but the Mechanic installing my exhaust showed it to me...apparently you have to turn the car off and turn it back on to again get the ability to use VDC after you do a full disable.

And yes, regardless of the overall numbers I'm really only concerned about the increase I'm getting from mods anyways