Se 110"??

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Feb 27, 2024 | 01:30 PM

Brutus Maximus

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Cruiser

Joined: Apr 2012

Posts: 178

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From: TX

Se 110"??

I recently purchased a 2015 FXDB and was told the original owner of the motorcycle had a SE 110" kit installed. I can tell the pushrods are the SE adjustable type and it has a SE air cleaner on it, but is there any way to verify the displacement without pulling the jugs? Is there some secret tell-tale sign that will let me know? One thing that leads me to believe it is not the stock 103 would be the pull when I twist the throttle. I have owned a couple of 103's and I've never felt one pull this hard all the way through the RPM range, to the point I can feel the clutch slip with the initial twist of the throttle. I want to build a map for my Dynojet PowerVision, but I want it to be accurate. Any help/advice you can offer would be greatly appreciated.

Ride Safe!!

Feb 27, 2024 | 03:57 PM

98hotrodfatboy

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Joined: Mar 2010

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From: Poolville

Call the MoCo and have them run the vin and check to see if an SE kit was installed.. They should be able to tell you that.. And if they did they most likely tuned the bike with SEPST or similar.. I wouldn't mess with the tune till you find out for sure.. Cause you just might mess it up..

Last edited by 98hotrodfatboy; Feb 27, 2024 at 06:00 PM.

Feb 27, 2024 | 04:12 PM

Brutus Maximus

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Cruiser

Joined: Apr 2012

Posts: 178

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From: TX

Quote:

Originally Posted by 98hotrodfatboy

Call the MoCo and have them run the vin and check to see if an SE kit was installed.. They should be able to tell you that.. And if they did they most likely tuned the bike with SEPST or similar.. I wouldn't f uck with the tune till you find out for sure.. Cause you just might f uck it up..

I didn't think of calling the MoCo. I'll give that a shot. I know it wasn't tuned with SEPST, because the previous owner gave me the Dynojet PowerVision he used to tune it. I don't know if there's any way to tell from the PV what it is, but I haven't dug into it at all.

Feb 27, 2024 | 05:12 PM

Screamin beagle

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Joined: Jun 2017

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From: Granville New York

You could stick a bore scope in the spark plug hole and if you get lucky you might be able to see the part numbers on top of the piston...waaaay more fun than making a simple phone call lol.

Feb 27, 2024 | 06:03 PM

98hotrodfatboy

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Joined: Mar 2010

Posts: 21,116

Likes: 7,640

From: Poolville

Quote:

Originally Posted by Brutus Maximus

Sorry didn't know the PV was already installed.. If it's running as good as you say why would you want to change anything??

Feb 27, 2024 | 06:20 PM

CoolBreeze3646

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Joined: Aug 2006

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From: Pennsylvania

If it was this kit from H-D, it should have SE marked on the heads on the right hand (air cleaner) side.

https://www.harley-davidson.com/us/e...0ci/p/92500033

If it was not an H-D kit then don' know.

Feb 27, 2024 | 08:25 PM

misfitJason

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Joined: Dec 2010

Posts: 6,849

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From: Florida

Two things.

1. Do a compression check and report what the psi is
2. Check the displacement value in winpv of the tune

3. Have Dynojet tell
You what the tune is

Last edited by misfitJason; Feb 28, 2024 at 06:29 AM.