Dyno or not????
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Tourer
Joined: Feb 2009
Posts: 433
Likes: 1
From: Texas
Dyno or not????
I have about 1400 miles on my bike since getting it back from my indy a month ago.
It is an '09 Road Glide that I had work done on. Some of the additions and changes are a 106 S&S Big Bore Kit with 570 cams, S&S heads, S&S Air Induction System and RB Racing 2-1 pipes. I already had the Power Commander 5 with Auto Tune on the bike. Will get pics up soon.
My question, is there a benefit to doing a dyno on my rebuild other than to solve my curiosity on what the numbers are?
The bike runs like a "scalded dog" and I am very pleased with the performance. My indy, who builds high performance engines and has many trophies from his Harley racing events, does not have a dyno machine. I will have to find someone in the Houston area that really knows what they are doing on the dyno or I know the dyno would not be worth doing.
Thanks in advance for any comments.
It is an '09 Road Glide that I had work done on. Some of the additions and changes are a 106 S&S Big Bore Kit with 570 cams, S&S heads, S&S Air Induction System and RB Racing 2-1 pipes. I already had the Power Commander 5 with Auto Tune on the bike. Will get pics up soon.
My question, is there a benefit to doing a dyno on my rebuild other than to solve my curiosity on what the numbers are?
The bike runs like a "scalded dog" and I am very pleased with the performance. My indy, who builds high performance engines and has many trophies from his Harley racing events, does not have a dyno machine. I will have to find someone in the Houston area that really knows what they are doing on the dyno or I know the dyno would not be worth doing.
Thanks in advance for any comments.
Road Master
Joined: Dec 2006
Posts: 1,058
Likes: 6
From: Omaha Nebraska
I would, but it depends on the individual. An engine can run good but not be in good tune and many riders would be happy with that, I would not. I would want to know where it is at for the peace of mind but more then likely you are leaving some potential fuel mileage, drivability, engine longgevity and performance on the table. If so, a good dyno tune would complete the total package and represent a small % of the cost of your upgrade.
Cruiser
Joined: Dec 2008
Posts: 231
Likes: 0
From: TX
I let Horny Toad HD in Temple TX dyno tune my bike about a month ago. I just have a pc V, with just stg I upgrade but my bike runs noticeably better. My fuel mileage went up a little bit and I can tell a difference in the response of my bike. It cost me $129, and was well worth it. I gained about 5hp and 5 ft/lbs of torque. I didn't have the auto tuner on my bike, just a pre-programmed map.
Cruiser
Joined: Oct 2005
Posts: 147
Likes: 0
From: League City, Tx
There's a tech named Jeremy at San Jac Harley who is a very good tuner. He did mine and will spend the time necessary to get it right. He's a drag racer and has a good understanding of fuel and ignition curves.
Road Warrior
Joined: Nov 2008
Posts: 1,955
Likes: 7
From: The Great Northwest
I guess my opinion is that if it ain't broke, don't fix it. Also remember that the Dyno run will flog your bike like a rented donkey. But if you want to see some numbers, or think you need an improvment, then go for it.
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Cruiser
Joined: Aug 2009
Posts: 215
Likes: 0
Dyno tuning used by the pro's is to insure that the engine is working within acceptable parameters and not harming it. Not intended to squeeze every pony out of her for the sake of big numbers. I would say do it to make sure the indy did his job...
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Outstanding HDF Member
Joined: May 2008
Posts: 2,923
Likes: 13
From: Asscrackistan
I would, but it depends on the individual. An engine can run good but not be in good tune and many riders would be happy with that, I would not. I would want to know where it is at for the peace of mind but more then likely you are leaving some potential fuel mileage, drivability, engine longgevity and performance on the table. If so, a good dyno tune would complete the total package and represent a small % of the cost of your upgrade.
+1, I certainly would!
You don't really know what's going on with out the Dyno and If I spent the kind of $$ you did, I wouldn't run the PCV. I would go the extra and really have it dialed in right with a TTS. My bet is, you will feel an even better running machine... But that's me.
Last edited by BlockHead96; Nov 2, 2009 at 08:17 PM.
Road Warrior
Joined: Dec 2008
Posts: 1,639
Likes: 2
From: Australia
My 124 absolutely flies with the S&S canned map and I was very happy with it, but when we dynoed her we found she was too lean in the mid range and way too rich up high. there is a bunch more power and tq there with the right tune, maybe another 10-15 of each.
SO she is getting the full dyno treatment next service and Ill let you know if it was worth it!
SO she is getting the full dyno treatment next service and Ill let you know if it was worth it!