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3.7L V6 Technical Discussions Any questions about the new engine, transmission, exhaust, tuners/CAI, or gearing can be asked here!

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Might dyno my V6 on Saturday

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Old 04-20-2012, 12:03 AM   #1
wkayl
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Default Might dyno my V6 on Saturday

I may have a chance for a free pull on a dyno on Saturday. I have never done this in my life. My 2011 V6 is bone stock, just like out of the show room. It has 30,000 miles. Any pointers? What should I expect?
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Old 04-20-2012, 02:57 PM   #2
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Add as many performance parts stickers as possible. they are worth 5hp each.


let us know the results.
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Old 04-20-2012, 04:32 PM   #3
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check your air pressures, turn off the GD traction control, Worry more about your shifts than 'nailing' it for time (clean, not slammed) and report back on how it goes.
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Old 04-20-2012, 06:20 PM   #4
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Don't forget to note what sort of dyno your car was measured on and what the ambient temperature/humidity was.
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Old 04-20-2012, 10:56 PM   #5
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Remember that a dyno is a tool - no more and no less.


If you want braggin' numbers, put the car on the dyno and cool it down to ambient temperature before making the run. This will give the best chance of avoiding power-robbing heat soak.

If you want to know what to expect in the real world, drive it straight onto the dyno, do not shut it off, and do the pull. That will give you the readings as close to the real-world conditions that you can get.

Most dynos have a "correction factor" option to account for ambient pressure and temperature. Try to get the corrected graphs, rather than the raw values.

Other than that - have fun and post up! What year and setup is your car?
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Old 04-21-2012, 10:13 PM   #6
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Well that was fun. My bone stock 2011 3.7 V6 did 234.67 HP and 215.03 ft lbs of torque. I edged out a club member's about a 2004 GT by 2 HP. The dyno was a DYNOJET 224xlc. Temp was 77.47 and humidity was 16%. Here is a quick video. http://www.youtube.com/watch?v=rQ99J...&feature=email

Click the image to open in full size.

Last edited by wkayl; 04-22-2012 at 09:48 AM.
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Old 04-22-2012, 07:29 AM   #7
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235rwhp sounds a little low - that would put drivetrain losses at 23%. The torque seems to be on par, but I would question the HP.

Do you have an automatic?

In comparison, the old 4.6 V8 (rated at 300bhp) in 05-10 GTs typically produced 265rwhp with the 5 speed and 250rwhp with the automatic.
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Old 04-22-2012, 06:43 PM   #8
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According to Wikipedia, Littleton, CO is 5351ft above sea level. Might that have an effect, even with the correction factor?
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Old 04-23-2012, 09:14 PM   #9
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Actually, on the bottom of the graph, you'll see the SAE correction factor was 1.23....which is a LOT and probably from the altitude.

Automatic?

Gotta love that SOUND!
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Old 04-24-2012, 06:58 AM   #10
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Our club had 4 cars there. Here is a video of all 4 cars. Yes, I have an auto.
http://www.youtube.com/watch?v=gijW2M0wIAc
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Old 04-24-2012, 11:43 AM   #11
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Glad you did it and had fun! The numbers seem a tad on the low side, but given that elevation and your auto (autos arent as power-robbing as they use to be, but still....) it makes a little more sense.

What plans do you have for the vert?
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12.71 @ 109.5 1.74 60ft.... 31.2mpg
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Old 04-24-2012, 09:28 PM   #12
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Quote:
Originally Posted by 97tplsGT View Post
What plans do you have for the vert?
Nothing much. I have done only slight cosmetic things so far. Matt black stripes, side scoops, and driving lights. Maybe a CAI in the furure without a tune (I like my warrenty and milage). My wife would like to have it make more noise (she liked the sound of our white 97 GT convertable). It even got so far as we test drove a California Special. The $200/month increase in payments made us shy away from that. I am a little gun shy on what axel back exhaust to get as I don't want it to drone or sound like a ricer.
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Old 04-26-2012, 09:15 AM   #13
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I would suggest the Flowmaster Force II's. They are about the least aggressive a/b out there, and doesn't rice things up too bad at all. I was gonna do a custom exhaust setup using Pypes M80 mid-mount mufflers. But the o/r xpipe was a lot cheaper, gave more power, and doesn't sound too horrible, imo of course.

I understand the warranty thing, but why do you think the tune would effect your mileage? If you keep your foot under control, tune/cai adds 1-2mpg.
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12.71 @ 109.5 1.74 60ft.... 31.2mpg
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Old 05-04-2012, 05:23 PM   #14
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So what is the norm as far as stock, and lightly modded 3.7's in the 1/4??

Do they respond well to common mods, like CAI/tune??
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Old 05-04-2012, 07:32 PM   #15
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I went 13.7 @ 102 bone stock to the rubber, 2.73's. Im hunting for a 12.99 slip with my current mods on a slick.
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12.71 @ 109.5 1.74 60ft.... 31.2mpg
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Old 05-15-2012, 09:19 PM   #16
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9:00 Friday I am getting it dynoed again. Let's see what gains I got from the CAI.
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Old 05-15-2012, 09:19 PM
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2008, 2011, 37l, chart, dyno, hp, mustanf, mustang, power, stock, v6, wheel

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