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Puddle Jumper
Posts: 14
Dublin, Ohio | I've got a 2008 VV with Ness twin suckers, PCV, and Thundersticks. I decided to take off the autotune and just get it tuned. Closest place to me I could find was Dyno Tune Motorsports. They seemed like great guys and boy was it fun to hear my baby scream. 
Anyway, they got her up to 91.5hp and 110 ftLbs torque. I think he said it was his first Vision. She runs like a champ now. I think the autotuner was confused. It kept making my front cylinder really rich and the rear really lean.
Are my numbers consistent for my setup?
Thanks. |
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Iron Butt
Posts: 669
Peachtree City, GA | I think they are capable to a Stage 1 bike. Someone else would need to verify that...
So the questions begin...
Why do you think the front was rich and the back was lean?
Were you running the Auto Tune with one or two O2 sensors?
Did you have it set up to map both cylinders with the Auto Tune?
Did the Dyno tuner create a separate map for each cylinder?
If so - how did he connect to each cylinder for the AFRs?
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Visionary
Posts: 3773
Pittsburgh, PA | Doesn't both cylinders connect under the engine before they get to the rear exhaust? |
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Visionary
Posts: 2300
Georgia, west of Atlanta | Yes but the O2 sensors are only 4 inches down the exhaust pipes and if you're using a PC V w/ auto tune you replace the stock narrow band sensors with wide band sensors. the fuel system should be tuning each cylinder seperately........... |
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Visionary
Posts: 2300
Georgia, west of Atlanta | I'm heading to Daytona this afternoon, I'll have the Vision dynoed at Wyotec before and after cam install. Lloyd is doing it Monday afternoon at 1PM................ |
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Puddle Jumper
Posts: 14
Dublin, Ohio | Why do you think the front was rich and the back was lean?
- That's what Brian said as he was tuning each cylinder. He pulled the sensor and showed me. Front one was really sooty. Rear one, not at all.
Were you running the Auto Tune with one or two O2 sensors?
- 2 sensors.
Did you have it set up to map both cylinders with the Auto Tune?
- I was using the map from dynojet and had the PCV set to 2 sensors. That gave me trims for both cylinders.
Did the Dyno tuner create a separate map for each cylinder?
- Yep.
If so - how did he connect to each cylinder for the AFRs?
- He connected to the front first and then tuned. When he was done with the front, he put my sensor back in, then tuned the rear. |
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Iron Butt
Posts: 669
Peachtree City, GA | That is very interesting. I wonder what DynoJet would have to say about it.
Great to hear you found a what sounds like a very good tuner in your area.
Wait a minute - I used to live in Pickerington - about 9 years ago... Who did you have tune your bike?
Edited by Webhair 2011-03-05 5:43 AM
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Puddle Jumper
Posts: 14
Dublin, Ohio | DynoTune Motorsports. Guy named Brian. He's in Galloway, Ohio right between Columbus and West Jefferson. |
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Puddle Jumper
Posts: 34
| Have a 08,cams, fuel controller ,rev ext.box and tuned by Lloyds with Ness Honkers. 109/113 |
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Cruiser
Posts: 216
Danville, CA | Have 08, Cams,PwrCmdr, IAV, Intake plate, remap ECM, thunderstix and gaskets. 118.6 HP and 116 Torque.. Very happy.. |
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Visionary
Posts: 2300
Georgia, west of Atlanta | Very good numbers aloha................ |
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Visionary
Posts: 4278
| Power commander is kinda deceiving. You buy the PC-V for $369 witch only tunes one cylinder and the the other cylinder and now you make a map.
You can add the autotune for another $369 that reads and tunes both cylinders as you ride.
I do think there is a lot of buyers there are mislead when they buy.
Edited by john frey 2011-03-18 6:50 PM
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Dyno numbers