Value of a new 117?
Road Warrior
Joined: Apr 2009
Posts: 1,258
Likes: 114
From: Jackson, Ohio
Yeah, there are several cams that’ll work with multiple displacements as a stock M8 has 10.5 to 1 compression. Bumping up to 10.75 isn’t much difference therefore just about any cam suited for stock heads/valve springs will work if your plan is to stay mild.
HD EFI Guru
Joined: Jan 2008
Posts: 4,462
Likes: 4,718
Just a little correction to this statement and that is NOT all factory M8's are 10.5:1! The OEM 107 is advertised at 10:1, 114 is 10.5:1 and the 117 is 10.2:1. Then you have all the SE kits and they are 11:1 except the 131 which is 10.8:1. Now remember these are advertised values NOT real ones. The HD tolerance for compression ratio is +/- 0.5:1. Since the aftermarket cannot correct for the HD engine tolerances they have the same +/- range unless you hand assemble and fit all the parts to see what you really get! Anyone who is telling you any difference is blow smoke up your ***. So when people say there kit is 10.75:1 versus an 11:1 isn't being honest with you, as the kit could really be anywhere within the HD range of +/- .5
Stellar HDF Member
Joined: Apr 2017
Posts: 3,034
Likes: 1,524
From: Bunola pa
good job, nice bike. i knew this was the route you were wanting to go, you just needed it justified. you only live once is all the justification you need.
wrong thread, please delete.
wrong thread, please delete.
Last edited by Jshopes; Sep 16, 2022 at 04:15 PM.
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Cruiser
Joined: May 2009
Posts: 219
Likes: 121
From: Central Maine
Thanks a bunch! The funny thing is, I test drove it and don't really love it, but I can picture where it'll end up and I love THAT. What I kept going back to is this- if I put a T124 in my 2011, and then want to do the suspension, and then want to do the audio, and THEN feel like I should get something newer, I would be worlds better to have just ripped the bandaid off and done the new one to begin with. So I went that route.
Stellar HDF Member
Joined: Apr 2017
Posts: 3,034
Likes: 1,524
From: Bunola pa
Thanks a bunch! The funny thing is, I test drove it and don't really love it, but I can picture where it'll end up and I love THAT. What I kept going back to is this- if I put a T124 in my 2011, and then want to do the suspension, and then want to do the audio, and THEN feel like I should get something newer, I would be worlds better to have just ripped the bandaid off and done the new one to begin with. So I went that route.
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Cruiser
Joined: May 2009
Posts: 219
Likes: 121
From: Central Maine
Yeah, my brain is like that sometimes. Sorry about that!
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