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TDIFest 2011 Discussion about TDIFest 2011 on the Labour Day weekend (September 2-4th, 2011) in Lexington, KY.

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Old September 4th, 2011, 19:22   #31
Madmanmartin
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Was anyone tuning at the dyno? Thats the only reason i can see to dyno is to tune.
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Old September 4th, 2011, 21:41   #32
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If it can help... Here's a picture I took of the numbers when I was there Saturday

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Old September 5th, 2011, 09:16   #33
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Quote:
Originally Posted by A5INKY View Post
...I just emailed the dyno shop (Fast Enough Performance) inquiring about the correction factors, if any, used Saturday...
Got this emailed reply from Chris Koptizke this morning:

"...We use the built in weather station with the intake air probe at the air filter, it also factors in outside air temp, baro, and humidity. The drivetrain loss on your car should be around 35% so your crank horsepower is about 240.( we know this from extensive engine/chassis dyno testing)"

Anyone know if 35% drivetrain loss is reasonable for our cars? IIRC from reading on this forum, 15-20% loss is the usual number.
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Old September 5th, 2011, 09:38   #34
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What did you tweak between your runs?

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Originally Posted by Torque_Delight View Post
If it can help... Here's a picture I took of the numbers when I was there Saturday
I thought it was odd that all of the cars were PD's. (seriously, it took me a while before I realized that in the non-tdi world that pd could mean something else)
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Old September 5th, 2011, 09:42   #35
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No, 35% is reasonable (a bit high) for AWD. You're right, most use 15% for FWD.

I know some of these cars and how they're set up, and all these numbers look a bit low. But it was a hot day, I hear.
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Old September 5th, 2011, 09:51   #36
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Quote:
Originally Posted by greengeeker View Post
What did you tweak between your runs?


I thought it was odd that all of the cars were PD's. (seriously, it took me a while before I realized that in the non-tdi world that pd could mean something else)
Haha.. I remember seeing that at a dyno session once and it took me a while to realize it meant that they had already PAID lol
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Old September 5th, 2011, 10:13   #37
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What did you tweak between your runs?...
Just the tune.

Struggled getting rid of smoke for months only to have the MAF finally crap out (but somehow still pass all the "tests" I could find on the boards). Just changed to a MAFless tune a couple weeks ago and had started adding fuel back in. First run went completely smokeless and torque dropped off big time after 4000 RPM. Second runs were better but there is still room for more fuel, and I have the hardware to deliver it.
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Old September 5th, 2011, 13:44   #38
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I only got 142 hp, my tune is really smokey down low, so I set the IQ at 10, and didn't realize i had no smoke on the dyno. Oh well, was my first one, live and learn.
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Old September 5th, 2011, 15:21   #39
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Quote:
Originally Posted by Torque_Delight View Post
If it can help... Here's a picture I took of the numbers when I was there Saturday
Hopefully I can break the 100 mark next year......
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Old September 5th, 2011, 15:45   #40
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Mine was 118.6/215

It was a fun time, and I got mine done before all of the heat really kicked in. right around 10am.

I need to photograph my Dyno Sheet and post it up here.
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Old September 5th, 2011, 15:51   #41
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I have a nice article on dynos http://forums.tdiclub.com/showthread.php?t=329073

Thanks Martin

Last edited by Madmanmartin; September 5th, 2011 at 16:11.
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Old March 26th, 2012, 06:20   #42
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I re dynoed yesterday on the same dyno and did 178.
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