I'm sure it's been covered, however........
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Tourer
Joined: Feb 2019
Posts: 409
Likes: 103
From: Roanoke, VA
I'm sure it's been covered, however........
My 89 FLTCU is on the stand this winter for all I can get done to it. If riding season comes before I finish, then I will ride it as I got it to....among things to do is to change the lifters and I will of course do adjustable pushrods too.....If I opt for renewing the cam I hear good things about EV13 and EV23.....assuming much touring and a twisty road environment with heavy grades, which of these two will give the best overall improvements? Understanding that more torque in more places is always good, although whatever horsepower these cams can unleash is not unwelcome. I would like to keep my fuel economy....it's 35 to 42mpg on stock stuff.....I doubt that I can improve it much other than to not twist too far back on the throttle! I know I should put a better breather in if I should dig that deep and I will do that.
Last edited by jonnycando; Jan 15, 2020 at 02:27 PM.
Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
My 89 FLTCU is on the stand this winter for all I can get done to it. If riding season comes before I finish, then I will ride it as I got it to....among things to do is to change the lifters and I will of course do adjustable pushrods too.....If I opt for renewing the cam I hear good things about EV13 and EV23.....assuming much touring and a twisty road environment with heavy grades, which of these two will give the best overall improvements? Understanding that more torque in more places is always good, although whatever horsepower these cams can unleash is not unwelcome. I would like to keep my fuel economy....it's 35 to 42mpg on stock stuff.....I doubt that I can improve it much other than to not twist too far back on the throttle! I know I should put a better breather in if I should dig that deep and I will do that.
Neither the 13 (which is better than the 27 for your bike) nor the 27 need them.
All that does is add a point of possible failure if you don't get the jam nut tight enough. BTDT
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Tourer
Joined: Feb 2019
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From: Roanoke, VA
Last edited by jonnycando; Jan 15, 2020 at 04:43 PM.
Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
i would do adjustable so as not to pull the heads if its not needed...if they need some service though that will change. And if neither cam is beneficial for my ways of riding Ill leave well enough and just do new lifters for I have some tasty hylift Johnson pieces and Im sure I need those anyhoo...I dont think my breather is faulty so wont bother it unless I do go digging into the cam chest and if the ev13 is a suitable upgrade with little downside Ill do it...not too spendy given some things which certainly are!
You do have to pull the rocker boxes but that's dead easy on a bagger.
The 13 is much better than the OEM cam but make sure if you change the cam change the cam bearing.
Road Warrior
Joined: Apr 2016
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From: Long Island
If you spend most of the time between 2-3000rpms definitely the 13 is your choice.Will pull nicely to 4500. The 27 comes on after 25-2600.
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Tourer
Joined: Feb 2019
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From: Roanoke, VA
Yep right around 3000 I dont think Ive owned any bike that didnt burble around right about there🙂 and I do need strong bottom end torque or at least not less than Ive got.
Last edited by jonnycando; Jan 15, 2020 at 05:47 PM.
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Tourer
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Road Master
Joined: Jun 2007
Posts: 842
Likes: 47
From: New Hartford CT
I had a Woods W6 (similar to the EV27) in my '89 for some years; it was noisy and the boost was from about 3000 on up. At 3500 - 4000 it really came into its own, but how oftern do you hit those RPMs? A catastrophic lifter failure damaged the cam, so when putting it back together I switched to an EV13. Big improvement -- valve train noise is minimal, and the power boost from the cam comes on best between 2000 - 3500 RPM -- a much more 'rideable' range. I can highly recommend this cam for a heavy, slightly modified Ultra. Mine has shaved heads, Wood CV carb, free flowing air cleaner, Dynatek ignition, S&S rockers and valve springs, true dual exhaust, so nothing crazy, just the usual mods. I wish I had gotten the EV13 years ago.
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