?dyno tune?
Elite HDF Member
Joined: Apr 2007
Posts: 3,766
Likes: 16
From: Roseville, CA
I was at a local shop the other day and asked about getting a tune. The owner told me that he doesn't use a dyno but can tune by base line maps and adjusting by riding the bike. They had a dyno in the past. The part of are conversation that had me thinking is that according to him doing a dyno tune is that it's like putting 5,000 to 10,000 miles on the motor. Is there any truth behind that?
I'm in the process of installing a 95" kit, cams, 2in1in2 head pipes, S&S vfi module. I am trying to find a good tuner that I can trust. I was picking up some parts at the shop and seen their business card that said they did dyno tuning. When I asked that's when he said that they got rid of the dyno
A map for a piggyback isn't a bad thing provided it does datalogging for tuning purposes.
There is no way possible he can give you a tune by riding it. A carbed bike sure, but not a FI bike, noway in hell, I don't care who he is or what he knows. A bike is tuned by either throttle position or MAP load and RPM's, there is no way to know what TP you are at at any given time without having something hooked up to your ECM telling you. Not to mention that each cylinder is tuned independantly. He might get lucky and get a bike running better his way, but it would be by changes large areas of the MAP at a time and not individual cells.
Good luck, let us know what you do and the results!
Road Warrior
Joined: Dec 2008
Posts: 1,639
Likes: 2
From: Australia
The dyno is just a thing that puts load on your bike, just like the road does. Full throttle on the dyno causes as much wear as full throttle on the road.
I have tuned my 124 myself on the road and on the drag strip, and it has taken 8 months to get it to where it is now. I have had to do this because no dyno tuner in my state has dual wideband oxygen sensors, they all use sniffers and therefore are a waste of time on my motor. Its not perfect, but its much better than the 2 clowns who tried to dyno it managed to get it. I paid them hundreds of $ per hour and they did SFA. The Stealers here in Australia make big money by fitting pipes and an A/C, getting a canned map and "dyno tuning" which consists of 2 or 3 WOT pulls and a bill for $300. Ask them to build a custom map from scratch and they look at you like a cow looks at an oncoming train.
So in short the guy aint lyin, you can tune EFI on the road by feel and using Smart Tune, my bike is proof of that. However if you have access to wallet full of cash and a dyno with a competent operator that is a much faster and more accurate way of doing it.
I have tuned my 124 myself on the road and on the drag strip, and it has taken 8 months to get it to where it is now. I have had to do this because no dyno tuner in my state has dual wideband oxygen sensors, they all use sniffers and therefore are a waste of time on my motor. Its not perfect, but its much better than the 2 clowns who tried to dyno it managed to get it. I paid them hundreds of $ per hour and they did SFA. The Stealers here in Australia make big money by fitting pipes and an A/C, getting a canned map and "dyno tuning" which consists of 2 or 3 WOT pulls and a bill for $300. Ask them to build a custom map from scratch and they look at you like a cow looks at an oncoming train.
So in short the guy aint lyin, you can tune EFI on the road by feel and using Smart Tune, my bike is proof of that. However if you have access to wallet full of cash and a dyno with a competent operator that is a much faster and more accurate way of doing it.
Last edited by kingkingking; Jan 15, 2012 at 10:34 PM.
Thread Starter
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Road Warrior
Joined: Sep 2008
Posts: 1,465
Likes: 16
From: Nor Cal
Sounds like they sold their dyno. 5k-10k, no. Untrue.
I hope that isn't Horsepower Express in Campbell. Bruce there does excellent work.
A map for a piggyback isn't a bad thing provided it does datalogging for tuning purposes.
Correct, a datalogger would have to be used somehow. Either a laptop in saddlebag or a setting with piggyback tuner with a USB memory stick or something.
If the map matches your set-up exactly, dyno tuning is certainly an option, but it won't make a huge difference and very likely not feel any different at all.
Good luck, let us know what you do and the results!
I hope that isn't Horsepower Express in Campbell. Bruce there does excellent work.
A map for a piggyback isn't a bad thing provided it does datalogging for tuning purposes.
Correct, a datalogger would have to be used somehow. Either a laptop in saddlebag or a setting with piggyback tuner with a USB memory stick or something.
If the map matches your set-up exactly, dyno tuning is certainly an option, but it won't make a huge difference and very likely not feel any different at all.
Good luck, let us know what you do and the results!
Road Master
Joined: Feb 2011
Posts: 992
Likes: 20
From: Arizona
When I had my bike built and dyno tuned I did a lot of research. All the feedback I received back was that the premier tuner in Northern Calif is RC Cycle (510-471-9755) in Hayward. I can't say enough about them.
http://www.rccycle.com/index.htm
http://www.rccycle.com/index.htm
Elite HDF Member
Joined: Apr 2007
Posts: 3,766
Likes: 16
From: Roseville, CA
When I had my bike built and dyno tuned I did a lot of research. All the feedback I received back was that the premier tuner in Northern Calif is RC Cycle (510-471-9755) in Hayward. I can't say enough about them.
http://www.rccycle.com/index.htm
http://www.rccycle.com/index.htm
Despite what he did, going to Hayward from the South Bay is a P.I.T.A. to get a bike worked on/tuned and not a particularly nice place to be, although better than Oakland. I used to work in Hayward.
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Road Warrior
Joined: Sep 2008
Posts: 1,465
Likes: 16
From: Nor Cal
Wrong thread. This is about the dyno tune. I don't have a opinion on ABS for a bike as I haven't had a chance to ride more than a few miles on a ABS equipped one. Works ok on my truck.
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Road Warrior
Joined: Sep 2008
Posts: 1,465
Likes: 16
From: Nor Cal
When I had my bike built and dyno tuned I did a lot of research. All the feedback I received back was that the premier tuner in Northern Calif is RC Cycle (510-471-9755) in Hayward. I can't say enough about them.
http://www.rccycle.com/index.htm
http://www.rccycle.com/index.htm
Elite HDF Member
Joined: Apr 2007
Posts: 3,766
Likes: 16
From: Roseville, CA
it was directed to kinkingking who PM'd me.