What do you think of these Dyno #'s
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Elite HDF Member
Joined: May 2009
Posts: 4,904
Likes: 9
From: Streetsboro, Oh
What do you think of these Dyno #'s
Ok I had my bike dyno tuned this week at an HD dealer. There Dyno does not have a break on it, but they use a exhaust gas meter for the A/F. My bike is a 2007 XL50 1200 stock engine with SE Stage I AC kit, SE 10mm plug wires, Martin Bros Two Down pipes and a PC III USB. Well they got the A/F super good and the print out said it made just about 68HP and 71 TQ at the rear tire. So I know that is over stock and the guys at the dealer said a stock 1200 makes about 55 hp at the rear so they said it was good numbers for just bolt on's. What do you guys think? I know the bike pulls alot hader and runs alot better then it did last year with the stock AC, SE slip on's and HD download.
Stellar HDF Member
Joined: Apr 2005
Posts: 3,108
Likes: 9
From: Lincolnton, NC
My son rides a 2004 XL1200C. With a Hypercharger, Cycle Shack slip-ons and a carb rejet he's at 74 hp and 79 ft/lbs of torque. Not saying one is good and one is not good, just throwing this out there as a point of reference.
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Elite HDF Member
Joined: May 2009
Posts: 4,904
Likes: 9
From: Streetsboro, Oh
Well like I said the dyno did not have a brake in it so there was really no load on the engine like there would be on the road, but for $80.00 flat fee I'm happy. everyone else wanted $200-300 for a tune around here. I was not after max power for the tune-i just wanted the bike to run correct with my mods.
Sounds like your son has a runing there.
Sounds like your son has a runing there.
Ultimate HDF Member
Joined: Sep 2005
Posts: 8,641
Likes: 26
From: Ozark Country
There are a lot of different ways to 'doctor' the figures you get on a dyna run, and the same bike might have completely readings depending on the dyno used.
A good friend of mine does the dyno tunes at a major dealership and he has told me that a 'stock' 1200 will put out around 62 to 65 hp to the rear wheel, and up to 75 hp to the rear wheel after opening up the intake/exhaust and a good dyno tune. (What is now known as a good Stage 1 upgrade and tune).
He did the work on my 1200C (minor head work, Screamin' Eagle "E" cams, jetting, etc.) and it's putting out around 85 hp to the rear wheel.
He also did the work on my WideGlide which produces right at 96 hp to the rear wheel and 102 pounds of torque.
Of course you can use 'non-corrected' dyno figures to 'fudge' the results if you are looking for nothing more than unrealistic "bragging right" figures..
But I am a little surprised at the 'guys at the dealership' that said a stock 1200 only produces around 55 hp to the rear wheel. From everything I've heard that sounds to be a very low figure.
A good friend of mine does the dyno tunes at a major dealership and he has told me that a 'stock' 1200 will put out around 62 to 65 hp to the rear wheel, and up to 75 hp to the rear wheel after opening up the intake/exhaust and a good dyno tune. (What is now known as a good Stage 1 upgrade and tune).
He did the work on my 1200C (minor head work, Screamin' Eagle "E" cams, jetting, etc.) and it's putting out around 85 hp to the rear wheel.
He also did the work on my WideGlide which produces right at 96 hp to the rear wheel and 102 pounds of torque.
Of course you can use 'non-corrected' dyno figures to 'fudge' the results if you are looking for nothing more than unrealistic "bragging right" figures..
But I am a little surprised at the 'guys at the dealership' that said a stock 1200 only produces around 55 hp to the rear wheel. From everything I've heard that sounds to be a very low figure.
Road Warrior
Joined: Feb 2009
Posts: 1,727
Likes: 11
From: TN
Two points: 55 hp is a little low for a bone stock fi 1200. 60 - 61 hp seems to be a better number. That said, a 1200 with stage 1, SEST, properly dynoed will get you to 80 hp. My '08 N'ster dynoed at 81 hp and 78 tq, very similar to the previous post.
Stage 1, tuner, and a dyno might get you to 71 hp on a 96.
Lastly..."screamin eagle tastes like chicken"
Bwana
Stage 1, tuner, and a dyno might get you to 71 hp on a 96.
Lastly..."screamin eagle tastes like chicken"
Bwana
Advanced
Joined: Nov 2009
Posts: 80
Likes: 0
From: MD
Two points: 55 hp is a little low for a bone stock fi 1200. 60 - 61 hp seems to be a better number. That said, a 1200 with stage 1, SEST, properly dynoed will get you to 80 hp. My '08 N'ster dynoed at 81 hp and 78 tq, very similar to the previous post.
Stage 1, tuner, and a dyno might get you to 71 hp on a 96.
Lastly..."screamin eagle tastes like chicken"
Bwana
Stage 1, tuner, and a dyno might get you to 71 hp on a 96.
Lastly..."screamin eagle tastes like chicken"
Bwana
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Ultimate HDF Member
Joined: Jul 2006
Posts: 6,478
Likes: 12
From: Nashville, TN
I agree about the 55 hp number being very low. I had my bike on a Dyno at a local Indy. He just wanted to get a bike on the Dyno during an open house Christmas party. He didn't do any work to it, but it was showing 52 hp. That was when it was still an 883 with stage 1 and tuned by myself.
I think if you pay $80 for a Dyno, that will usually run around $200 - $400...well, ya get what you pay for.
I think if you pay $80 for a Dyno, that will usually run around $200 - $400...well, ya get what you pay for.
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Road Master
Joined: Dec 2007
Posts: 1,125
Likes: 22
From: Phoenix, AZ
Getting 1 hp & 1 ft-lb torque per ci of engine is normal for a non-epa evo style engine.
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