Descrepency on HP
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3rd Gear
Joined: Dec 2011
Posts: 7
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From: Rockford, IL.
Descrepency on HP
Just had my 2011 Softail Deluxe 96 c.i. bored to 103 c.i. with 259 screamin eagle cam, 10.5/1 compression, electronic compression releases, port/polished heads, power commander, big sucker breather and Vance & Hines straight shot pipes. Guy who built it says it should have 110-115 H.P. So do the guys at a Harley Speed shop. My dyno guy says 92 H.P. is all he can get without running it too lean, etc. He talked to S&S and they said that is about right. I'm ok with the 92 H.P., but any idea who is right?
Stellar HDF Member
Joined: Feb 2011
Posts: 3,048
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From: Central Jersey
110HP is asking a lot.. maybe 110 Torques, but i don't think HP with those cams.. where is your Torque at?
The exhaust may be restricting it a bit too.. you'd get a slight bump in HP from a 2-1 pipe, like the V&H Pro Pipe, or the D&D FatCat
The exhaust may be restricting it a bit too.. you'd get a slight bump in HP from a 2-1 pipe, like the V&H Pro Pipe, or the D&D FatCat
Road Master
Joined: Aug 2010
Posts: 1,067
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From: New Hampshire
Why would he run it too lean to get more horse power?
Is he familiar with all aspects of the Power Commander?
Actually the 92HP is not that far off. What is the max torque? Can you post the dyno chart?
P.S. that has got to be one fast Deluxe.
Is he familiar with all aspects of the Power Commander?
Actually the 92HP is not that far off. What is the max torque? Can you post the dyno chart?
P.S. that has got to be one fast Deluxe.
Road Master
Joined: Feb 2011
Posts: 992
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From: Arizona
Just had my 2011 Softail Deluxe 96 c.i. bored to 103 c.i. with 259 screamin eagle cam, 10.5/1 compression, electronic compression releases, port/polished heads, power commander, big sucker breather and Vance & Hines straight shot pipes. Guy who built it says it should have 110-115 H.P. So do the guys at a Harley Speed shop. My dyno guy says 92 H.P. is all he can get without running it too lean, etc. He talked to S&S and they said that is about right. I'm ok with the 92 H.P., but any idea who is right?
Last edited by NorCalFBLO; Dec 20, 2011 at 05:47 PM.
Elite HDF Member
Joined: Jun 2008
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From: Connecticut
may just be the dyno itself. Some are a little stingy where some say more than whats there. Numbers are numbers and thats all how does it ride? The seat of the pants tells more than any dyno can
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3rd Gear
Joined: Dec 2011
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From: Rockford, IL.
I know I'd get a little more with a 2-1 pipe, but got these pipes before I decided to build motor, not wanting to spend the extra money now.
Road Master
Joined: Dec 2005
Posts: 1,078
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From: Hickory, NC
Just had my 2011 Softail Deluxe 96 c.i. bored to 103 c.i. with 259 screamin eagle cam, 10.5/1 compression, electronic compression releases, port/polished heads, power commander, big sucker breather and Vance & Hines straight shot pipes. Guy who built it says it should have 110-115 H.P. So do the guys at a Harley Speed shop. My dyno guy says 92 H.P. is all he can get without running it too lean, etc. He talked to S&S and they said that is about right. I'm ok with the 92 H.P., but any idea who is right?
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3rd Gear
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From: Rockford, IL.
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Road Master
Joined: Dec 2005
Posts: 1,078
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From: Hickory, NC
I hear you. I'm still running Big Shot Staggered pipes on my bike because I got them right before I decided on my build. As much as I hate to do it, I'm going to suck it up and install a 2-1 on mine.
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3rd Gear
Joined: Dec 2011
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From: Rockford, IL.
Bike will be done tomorrow and I"ll try to post chart. The tuner is NOT a HD specialist but was on a Japanese bike race team. Also holds world speed record for snowmobile. He says, also S&S told him, no way it can get 110+ HP without doing lower end. As you can see on this board I'm getting the same thing. One says 90s another says he has 111. Says his Dyno is calibrated perfectly, and others are fudging numbers.