95" upgrade
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Joined: Jan 2018
Posts: 22
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From: London, On Canada
95" upgrade
Hey everyone, time for winter upgrades. This year I have putting new cylinders on my 2000 fxdx (88ci). I have ordered the s&s 95" big bore kit. Now this past year I put new cams in, I am running the s&s .509's. My question is, will these cams be ok for the upgrade or am I going to have to get new cams again?
HDF Community Team
Joined: Apr 2018
Posts: 2,574
Likes: 1,068
From: Ohio
Hey everyone, time for winter upgrades. This year I have putting new cylinders on my 2000 fxdx (88ci). I have ordered the s&s 95" big bore kit. Now this past year I put new cams in, I am running the s&s .509's. My question is, will these cams be ok for the upgrade or am I going to have to get new cams again?
Last edited by brownie4412; Oct 29, 2019 at 05:37 PM.
Road Captain
Joined: Oct 2018
Posts: 539
Likes: 284
From: Coldstream B.C. CA.
Best to keep researching this one for now. I'd like to punch my 88 out to a 95 too but I was warned to stay with lower comp pistons or else change out my cams,I'm told my 551 S&S cams won't play nice with anything higher comp than 9.9-1 pistons. Apparently detonation becomes a threat due to the 551's intake valve timing which will raise the compression to this threshold. I must say, I really like the 551 torque & power band, I just want more cubes. My attitude is "Who cares if I can't say I have 10.5-1 or 11-1 pistons, what really matters is the actual combustion chamber compression that is determined by the combination of components you've married up in your build", I want all those goodies to play nice together! Any comments to this mindset?
Here's a link to a couple videos that are really good to help you get your mind around this topic.
Here's a link to a couple videos that are really good to help you get your mind around this topic.
Last edited by skills; Oct 29, 2019 at 07:24 PM.
Supporter
Joined: Jan 2007
Posts: 15,788
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From: along the shore of Mishigami
When I had the 95" kit put in on my 02 Superglide they put in the S/E 203 cams that are equivalent to the S&S 551 cam. Real good power when solo and the power was still there with the increase in torque when two up.Roll on throttle passing worked real well. At the time the HD 96" came out and keeping up wasn't a problem till the new bikes went into 6th gear. Has a nice little lope to the idle.
Seasoned HDF Member
Joined: Nov 2016
Posts: 5,801
Likes: 809
From: South Carolina
Will be watching this thread.... I was just thinking of having a port done on my heads.... Not looking for massive hp... 80 to 85 if that...
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Seasoned HDF Member
Joined: Mar 2010
Posts: 21,116
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From: Poolville
If you go over to the Engine mechanical topics forum you'll see that most are going to a 98"er with 570 or 585 cams with compression to match the cam ivc plus head work. 110/105 is easily had..
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Seasoned HDF Member
Joined: Nov 2016
Posts: 5,801
Likes: 809
From: South Carolina
I hate to say it, but to spend less is more... For me, guess I'm cheap, so a little head work should get me a little more hopefully?
That way it I do want a lot more I can just buy a new motor..
That way it I do want a lot more I can just buy a new motor..
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