"DYNO" Numbers For SOFTAILS
Intermediate
Joined: Dec 2014
Posts: 44
Likes: 0
From: Surrey, Great Britain
Even so thats a lot of torque. I know you guys in the US have better and bigger roads than us in the UK but is that manageable so much torque?
5th Gear
Joined: Aug 2011
Posts: 9
Likes: 0
From: Australia
my dyno sheet
This is for my 2009 Fatboy and is now a 103 motor. Heads have flowed and ported, larger valves & springs, 52mm throttle body, S&S 625 cams, 10.5:1comp. V&H Pro pipe. I will be changing the exhaust soon back to the original header pipes and S&S turbo slip on mufflers. Then off to my Dyno tuner.
Last edited by junno; Aug 15, 2015 at 11:53 PM. Reason: forgot motor size and model
Intermediate
Joined: Dec 2014
Posts: 44
Likes: 0
From: Surrey, Great Britain
That looks like 101 ft/lbs torque on a 103" inch engine with everything done to it. Unless my eye sight is bad Something is not right. Those kind of mods you should get at least 1.2ft/lbs per ci. I would be amazed at less than 110ft/lbs. You sure you got an honest deal?
Last edited by NeilMcA; Aug 16, 2015 at 04:19 PM.
Cruiser
Joined: Jun 2014
Posts: 192
Likes: 3
From: FBI Surveillance Van, UT
I agree. When I'm done upgrading to a 98 with heads and cams I expect to be getting 110+ and have seen many a sheet to back that expectation up.
5th Gear
Joined: Aug 2011
Posts: 9
Likes: 0
From: Australia
Thats why Im going back to the original header pipes and some S&S turbo slip on mufflers to get a better torque figure. The Pro pipe is too big for the motor
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,019
Likes: 7,547
From: Poolville
The pipes are not going to help you that much. I think you over cammed your motor. Even though your static comp is 10.5:1 your effective is only 8.9:1 with that 625 cam. the late closing of the intake valve really decreases your compression. I believe your build would have better numbers with the 585 cam... Talk to a reputable builder......
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5th Gear
Joined: Aug 2011
Posts: 9
Likes: 0
From: Australia
The Guy that did my Head work is very well know here in Australia and has done the heads to suit the 625 cams. I have been told by 3 Dyno tuners that have seen my chart that the pipe is the issue. So going to do the exhaust and then a new tune. Will post results when its done. Sadly it wont be until early October
Cruiser
Joined: Jun 2014
Posts: 192
Likes: 3
From: FBI Surveillance Van, UT
The Guy that did my Head work is very well know here in Australia and has done the heads to suit the 625 cams. I have been told by 3 Dyno tuners that have seen my chart that the pipe is the issue. So going to do the exhaust and then a new tune. Will post results when its done. Sadly it wont be until early October
In my future 98" build with my heads decked to match the compression on the cams I;m choosing, I'm expecting 110+ running my propipe. You should get at least that on a 103.