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Old 02-06-2010, 06:50 AM   #1 (permalink)
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103"/Compression Releases

Hi All,
I am inquiring to see how many of you with 103" stage II builds have compression releases installed (mine will be 103"/stock compression/SE 255 cams/stock heads). The local dealer says with stock compression I will have no issues. He's a 30 yr tech but I just thought I'd check with the owners themselves. Thanks for any input.. Troop
* Bike is a 2009 FLHT if that makes any difference re: battery/starter.

Last edited by troop; 02-06-2010 at 09:37 AM.
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Old 02-06-2010, 07:16 AM   #2 (permalink)
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There are guys who are running this combo with no compression releases, I'll bet 75% of them regret it. I'd do the releases, not sense in killing the starter due to hot restart kick back. You could also ask the 30 year tech why the Moco puts releases on the the 103 from the factory.
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Old 02-06-2010, 09:56 AM   #3 (permalink)
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We install compression releases in all of our big bore kits.
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Old 02-06-2010, 09:57 AM   #4 (permalink)
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Yup, I understand your logic. But I also see that MOCO does not include them in their 103" stage II build nor state that they're recommended?
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Old 02-06-2010, 10:02 AM   #5 (permalink)
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Stall it at a light or in some other hairy place and you'll wish you had them on...
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Old 02-06-2010, 12:36 PM   #6 (permalink)
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This is assuming you are talking about the Stg II kit.

I didn't have them at first, then added them later. I also did not do this because I had some money laying around with nothing better to do. I did it because hot starts are a problem. It started yes, but not easy and it was hard on the starter.

If you're talking about some other special picked parts application making it a lower compression engine, then you'll most likely be ok.

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Old 02-06-2010, 03:42 PM   #7 (permalink)
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Quote:
Originally Posted by troop View Post
Yup, I understand your logic. But I also see that MOCO does not include them in their 103" stage II build nor state that they're recommended?
The Moco wouldn't sell very many Stage II kits if they told people they needed to spend money on releases and machining also. I guess to use some reverse logic. Why would they make ACR's standard on all Police bikes, the Ultra LTD and the Triglide if they were not needed. All three of them have 103" engines with the same cam as the stock TC engines do. Sure there are plenty of folks running the Stage II kit without them, and there are lots of them that don't know any better either. I bet there are some who wonder why their starter can barley turn their engine over on a hot start.
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Old 02-06-2010, 04:21 PM   #8 (permalink)
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I've been convinced ....
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Old 02-07-2010, 06:53 AM   #9 (permalink)
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I've been convinced ....
Another good point about releases. If you ever have a weak battery they may make the difference between getting it started and riding it vs getting a tow.
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Old 02-07-2010, 12:36 PM   #10 (permalink)
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for what little it costs to get the heads done to get the compression relief done and to put a set of manual relief valves in, you should put them in. my 103 when its hot is a b*tch to start sometimes, this winter i did head work and a few other changes and had the MCRs put in. I may not need them, but it is nice to have for those few times where it would be useful
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Old 02-07-2010, 01:14 PM   #11 (permalink)
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Quote:
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Yup, I understand your logic. But I also see that MOCO does not include them in their 103" stage II build nor state that they're recommended?
It depends on the cam they are using. MY friend had a cam put in his 103 CVO, I think it a 2003. No release. He has starting problems now.
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Old 02-07-2010, 02:22 PM   #12 (permalink)
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Originally Posted by msocko3 View Post
Another good point about releases. If you ever have a weak battery they may make the difference between getting it started and riding it vs getting a tow.
That thought never crossed my mind, good point and I see the logic.
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Old 02-07-2010, 10:08 PM   #13 (permalink)
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I have just made it a habbit to push mine down after turning off the engine. Then I don't have to remember to do it on start up like I would do often before.

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Old 02-08-2010, 09:37 AM   #14 (permalink)
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Originally Posted by ceraaa42 View Post
I have just made it a habbit to push mine down after turning off the engine. Then I don't have to remember to do it on start up like I would do often before.

Chris
Hi there,
You still happy with your build ? I'm going to be paying for the labor but will try to negotiate a cost come next winter. I'm piecing together my build. Starting in order of parts I can use on my 96" if $$ don't come thru. So far I acquired:
1.) SEST $225 (brand new/sealed)
2.) SE 255's $125 (fresh out of a 10 mile CVO RG)
3.) B168 bearings $15
Next in order: SE 103" flat tops, top-end kit, CR's, etc misc. I can get the boring/honing done locally for a good price. Kinda fun just taking my time and searching

** Local dealer will install SE releases for $100. $40 and my releases. I was expecting quite a bit more. Certainly a no brainer !!!

Last edited by troop; 02-08-2010 at 03:43 PM.
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Old 02-09-2010, 06:32 PM   #15 (permalink)
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Quote:
Originally Posted by troop View Post
Hi there,
You still happy with your build ? I'm going to be paying for the labor but will try to negotiate a cost come next winter. I'm piecing together my build. Starting in order of parts I can use on my 96" if $$ don't come thru. So far I acquired:
1.) SEST $225 (brand new/sealed)
2.) SE 255's $125 (fresh out of a 10 mile CVO RG)
3.) B168 bearings $15
Next in order: SE 103" flat tops, top-end kit, CR's, etc misc. I can get the boring/honing done locally for a good price. Kinda fun just taking my time and searching

** Local dealer will install SE releases for $100. $40 and my releases. I was expecting quite a bit more. Certainly a no brainer !!!
Yes, I'm happy with mine. Would I like more, sure. Do I want to spend the additional money to get it, nope. I was just penciling it out yesterday. I really liked the power band with the 95" SE251 cam engine I build about 4 years ago.

Cams $250
Headwork $1000 (Baisleys)
Gaskets $100
Tune $435 (Latus)
Misc
Doing the work myself
Rounding it off at $2000, ain't gonna happen.

I would sound awesome though! And be a fun ride.

Chris
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