Dyno question
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Joined: Jun 2007
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RE: Dyno question
Easy Wags.....because the good Doc can't see me until July 31st and I'd go nuts having the sled sit in the garage with my new pipes and sucker and not be able to ride it. More money than sense. 
Cruiser
Joined: Jul 2006
Posts: 107
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From: SF Bay Area, California
RE: Dyno question
I just had a D&D Fatcat 2-into-1 exhaust, SERT and Arlen Ness Big Sucker installed on my 06 Dyna Street Bob. They did an hour dyno tune and here's my results.
[IMG]local://upfiles/15784/EAABA650F2C04967B08E8B75031B6F3E.jpg[/IMG]
They said they thought their machine was off by 5. Like gjerb, I didn't really know what to look for in all this. I didn't get a pre-tuned chart, just the one printout. It's my first time dealing with this shop and with the dyno tuning so I don't know if these results are any good. I also don't know what calibration they used with the SERT. Can one of you kind experts critique my dyno and let me know if I need to go back and talk to the shop to retune? Thanks!
[IMG]local://upfiles/15784/EAABA650F2C04967B08E8B75031B6F3E.jpg[/IMG]
They said they thought their machine was off by 5. Like gjerb, I didn't really know what to look for in all this. I didn't get a pre-tuned chart, just the one printout. It's my first time dealing with this shop and with the dyno tuning so I don't know if these results are any good. I also don't know what calibration they used with the SERT. Can one of you kind experts critique my dyno and let me know if I need to go back and talk to the shop to retune? Thanks!
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Joined: Jun 2007
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RE: Dyno question
Sorry, can't make out the attachment. But what you can tell from your printout is the A/F reading at all rpm. Should be around 3.7 Next, if you don't have a baseline hp and tq I would suggest comparing your results against the factory specs available from HD. Also, see how it runs.....no bogging down on acceleration, no backfire on decel etc. Hope this helps.
Cruiser
Joined: Jul 2006
Posts: 107
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From: SF Bay Area, California
RE: Dyno question
Sorry about the image being so light - the printout was light to begin with. Went back and photoshopped the numbers in so you can read it without squinting.
[IMG]local://upfiles/15784/3148B55CB7BC43CB858BFF75C57A5CBC.jpg[/IMG]
Here are the figures at the bottom:
Eng Torgue T WC (ft-lb blue Min 52 Max 66 Avg 60
Eng Power T WC (Hp) red Min 29 Max 61 Average 51
AFR 2 (ratio) green Min 11.1 Max 12.9 Avg 11.7
Summary sheet says:
Max Power 61.3 hp @ 5546 rpm/98.9mph
with WCF 61.8
Max Torque 66.5 @ 3008 rpm/53.2mph
with WCF 66.9
I haven't ridden more than 10 miles on it, but so far it seems fine. Handles as it did before only much louder now. I'm googling everywhere but can't seem to find any factory dyno charts. The 06s aren't on the HD site anymore.
[IMG]local://upfiles/15784/3148B55CB7BC43CB858BFF75C57A5CBC.jpg[/IMG]
Here are the figures at the bottom:
Eng Torgue T WC (ft-lb blue Min 52 Max 66 Avg 60
Eng Power T WC (Hp) red Min 29 Max 61 Average 51
AFR 2 (ratio) green Min 11.1 Max 12.9 Avg 11.7
Summary sheet says:
Max Power 61.3 hp @ 5546 rpm/98.9mph
with WCF 61.8
Max Torque 66.5 @ 3008 rpm/53.2mph
with WCF 66.9
I haven't ridden more than 10 miles on it, but so far it seems fine. Handles as it did before only much louder now. I'm googling everywhere but can't seem to find any factory dyno charts. The 06s aren't on the HD site anymore.
Outstanding HDF Member
Joined: May 2007
Posts: 2,304
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From: Florida
RE: Dyno question
Slayer your tuner didn't use a Dyno Jet....I can't recognize the softare at all that made your print out. I have to wonder if the dyno have a eddie brake on it which is required to do a EFI tune. One other thing....it takes me 4 to 5 hours to do a SERT tune, it's not that I'm slow, it's because I check all throttle positions not just 100% throttle positionwhich most shops do.
Seaquester5....what do you meanDOC is going to be busy.....I think BILL is going to be busy.....lol
Seaquester5....what do you meanDOC is going to be busy.....I think BILL is going to be busy.....lol
Cruiser
Joined: Jul 2006
Posts: 107
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From: SF Bay Area, California
RE: Dyno question
According to the printout it's a Mustang Dynamometer Test Report. Also lists a website for the company www.mustangdyne.com.
When I brought it in they said they usually take 1-2 hours to do the Dyno tune, but they'd only charge me an hour. Do you think they did a half-*** job? Now what do I do??
When I brought it in they said they usually take 1-2 hours to do the Dyno tune, but they'd only charge me an hour. Do you think they did a half-*** job? Now what do I do??
Tourer
Joined: Apr 2007
Posts: 312
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From:
RE: Dyno question
ORIGINAL: Slayer
I just had a D&D Fatcat 2-into-1 exhaust, SERT and Arlen Ness Big Sucker installed on my 06 Dyna Street Bob. They did an hour dyno tune and here's my results.
I just had a D&D Fatcat 2-into-1 exhaust, SERT and Arlen Ness Big Sucker installed on my 06 Dyna Street Bob. They did an hour dyno tune and here's my results.
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Tourer
Joined: Apr 2007
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RE: Dyno question
ORIGINAL: Gjerb
Easy Wags.....because the good Doc can't see me until July 31st and I'd go nuts having the sled sit in the garage with my new pipes and sucker and not be able to ride it. More money than sense.
Easy Wags.....because the good Doc can't see me until July 31st and I'd go nuts having the sled sit in the garage with my new pipes and sucker and not be able to ride it. More money than sense.
Road Master
Joined: Dec 2006
Posts: 1,058
Likes: 6
From: Omaha Nebraska
RE: Dyno question
ORIGINAL: Slayer
According to the printout it's a Mustang Dynamometer Test Report. Also lists a website for the company www.mustangdyne.com.
When I brought it in they said they usually take 1-2 hours to do the Dyno tune, but they'd only charge me an hour. Do you think they did a half-*** job? Now what do I do??
According to the printout it's a Mustang Dynamometer Test Report. Also lists a website for the company www.mustangdyne.com.
When I brought it in they said they usually take 1-2 hours to do the Dyno tune, but they'd only charge me an hour. Do you think they did a half-*** job? Now what do I do??
Tuners are not abligated to provide theircustom tuning file unless agreed to in advance, thensome maydecideif they will expose certain tuningtechniques to the public and their competition. There is a big descrepency in tuning skills from tuner to tuner because tuning is more of an art then a science and here again, likein the automotive tuning field,some of the best tuners consider their file a "trade secret" and proprietary. As the motorcyle tuning profession matures, we will probably see more of this by top tuners. These tuners are usuallyso busy with a long backlogthat they do not concern themselves with the few who will not go to them for a tune if they can't have a copy of the tuning file.