Was going with the SE255 cams:
Road Warrior
Joined: Nov 2009
Posts: 1,444
Likes: 1
From: SC
try and research the s&s site or techs for specs and dynos on their cams. then compare them to the 255's. Then based on ur riding style or how you plan to ride later on decide which ones are best for you. If you can't find the info your looking for, i'd go witht he 255's since so many other have them and speak good about them. Good luck
Club Member
Joined: Feb 2007
Posts: 5,335
Likes: 0
From: Tidewater
I bought a SE255 and the cam kit. I was on the way to have it installed when I was talked out of it by a friend who has been a Mechanic and an engine builder for over 25 years. He sent me instead, with a Pro Tuner to get my bike tuned. Boy was I surprised! The bike I got back was exactly what I was looking for and I never had to 'bolt on' anything. I am not saying you won't get more with a SE255, and S&S, Andrews etc, I am sure you will, BUT I am saying you may be happy with a good tune, pipes and A/C depending on what you are looking for.
Road Warrior
Joined: Feb 2008
Posts: 1,313
Likes: 1
From: Wagoner, Oklahoma
I had the SE255 cams installed in my stock motor. The stealer just put a stage ll map in, I did not at the time put a tuner in for the EFI. Big mistake, bike ran good but not near as well than when I had the SEPROT installed with a dyno. Max HP is 64.86 but the torque at 2500 to just over 3000 rpm is 85.16. I am not into speed if I was I would have a different bike. I ride a lot of 2 up and with the ULtra it just needed a little help. Besides they use the same cam in the 103 kit if you ever half to get really into the motor for some reason you are already half way there. At least that is what I am going to do...............
Road Captain
Joined: Jan 2007
Posts: 605
Likes: 1
From: Minnesota
mphamrick, those dyno numbers look really low for the SE 255 and cams. More like a stage I only. What kind of dyno did your tuner use? I had mine done as part of the cam install. The dealer has one of the new SuperFlow WinDyn units that show numbers about 10% lower than on a DynoJet unit (I have the correction for my HP numbers).
Corrected to the DynoJet, my TQ was about 97 and HP about 82. See posts.
Corrected to the DynoJet, my TQ was about 97 and HP about 82. See posts.
Extreme HDF Member
Joined: Apr 2006
Posts: 10,449
Likes: 46
From: Roswell, GA
If you have an '09 or '10 Touring bike, your gearing is already lower than the gearing in the '07 and '08 96" Touring bikes which provides a mechanical advantage in creating torque. This mechanical advantage is similar to putting 4:11 gearing in a muscle car from the '60's and '70's. The engine produces the same torque, but the lower (higher numerical) gearing multiplies torque faster than the higher (lower numerical) gearing.
Since the '09 and '10 bikes multiply torque earlier than the higher geared '07 and '08 bikes, the SE 255's ability to create torque early in the low rpm range due to its 25* intake valve close may be less of a consideration for owners of the '09 and '10 bikes than it is for owners of the older models.
Since the '09 and '10 bikes multiply torque earlier than the higher geared '07 and '08 bikes, the SE 255's ability to create torque early in the low rpm range due to its 25* intake valve close may be less of a consideration for owners of the '09 and '10 bikes than it is for owners of the older models.
Club Member
Joined: Feb 2007
Posts: 5,335
Likes: 0
From: Tidewater
I had the SE255 cams installed in my stock motor. The stealer just put a stage ll map in, I did not at the time put a tuner in for the EFI. Big mistake, bike ran good but not near as well than when I had the SEPROT installed with a dyno. Max HP is 64.86 but the torque at 2500 to just over 3000 rpm is 85.16. I am not into speed if I was I would have a different bike. I ride a lot of 2 up and with the ULtra it just needed a little help. Besides they use the same cam in the 103 kit if you ever half to get really into the motor for some reason you are already half way there. At least that is what I am going to do...............
That's exactly what I say... they are a very good choice for 96" and 103" baggers running an otherwise stock engine. Very cost effective way to increase torque low in the band. If you're going to increase compression, port your heads, etc, then the 255's will hold you back. But in the right application, they work very well.
mphamrick, those dyno numbers look really low for the SE 255 and cams. More like a stage I only. What kind of dyno did your tuner use? I had mine done as part of the cam install. The dealer has one of the new SuperFlow WinDyn units that show numbers about 10% lower than on a DynoJet unit (I have the correction for my HP numbers).
Corrected to the DynoJet, my TQ was about 97 and HP about 82. See posts.
Corrected to the DynoJet, my TQ was about 97 and HP about 82. See posts.
From what I can make out from your dyno charts, your bike makes about 74 hp and 87 ft/lbs. That's very much in keeping with what other guys have gotten from a se255 in a 96. I don't see what pencil-whipping those numbers upwards gets you. Your bike is making what it is making.
Since when have the tuners been adjusting numbers upwards from the dyno sheet? What am I missing here...
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Road Captain
Joined: Jan 2007
Posts: 605
Likes: 1
From: Minnesota
boogaloodude. If you look at the second chart I posted, you will see both the WinDyn and Dynojet number for my HP. The WinDyn numbers are 10% lower. This is due to they way it does the dyno. It's also true for cars. Google it and read up on it before your start acusing someone of fudging numbers.
As far as what people are getting with their SE 255's, my "corrected numbers are right on. Typical TQ for the SE 255's as measured on a DynoJet are 90-100 depending on the type of exhaust and tuner. That's the reason I was asking mchamrick the question of what type of dyno was used. If the WinDyn, that would explain his low numbers. Otherwise something else is going on. Those numbers for an SE 255/Stage I are too low.
As far as what people are getting with their SE 255's, my "corrected numbers are right on. Typical TQ for the SE 255's as measured on a DynoJet are 90-100 depending on the type of exhaust and tuner. That's the reason I was asking mchamrick the question of what type of dyno was used. If the WinDyn, that would explain his low numbers. Otherwise something else is going on. Those numbers for an SE 255/Stage I are too low.
boogaloodude. If you look at the second chart I posted, you will see both the WinDyn and Dynojet number for my HP. The WinDyn numbers are 10% lower. This is due to they way it does the dyno. It's also true for cars. Google it and read up on it before your start acusing someone of fudging numbers.
As far as what people are getting with their SE 255's, my "corrected numbers are right on. Typical TQ for the SE 255's as measured on a DynoJet are 90-100 depending on the type of exhaust and tuner. That's the reason I was asking mchamrick the question of what type of dyno was used. If the WinDyn, that would explain his low numbers. Otherwise something else is going on. Those numbers for an SE 255/Stage I are too low.
As far as what people are getting with their SE 255's, my "corrected numbers are right on. Typical TQ for the SE 255's as measured on a DynoJet are 90-100 depending on the type of exhaust and tuner. That's the reason I was asking mchamrick the question of what type of dyno was used. If the WinDyn, that would explain his low numbers. Otherwise something else is going on. Those numbers for an SE 255/Stage I are too low.
So your bike is making 82 hp and 97 ft/lbs tq if it was measured on a dynojet dyno. Which it wasn't. But if it was, those are the numbers you should have gotten. I think I got it.
I think you're too hung up on dyno charts.
Last edited by Mike; Jan 10, 2010 at 09:17 PM.