New Motor
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Intermediate
Joined: Apr 2014
Posts: 26
Likes: 18
From: Sandy, UT
New Motor
I have a 1998 Fatboy. I'm coming up on 60k and I'm thinking about changing out the motor in the bike. I not looking to build I drag ride because I still use this bike and my other one to go on extended rides. The main reason that I'm thinking to upgrade is to add just a little more power and that the bike is starting to show and feel it's age.
I keep it serviced and in good order, but like every vehicle it still doesn't have the go it used to have, so I've been thinking of maybe changing the motor and add some new life and feel back into it.
So here is my question. If I want something different and I want to stay in the mileage range I have now with the few upgrades I have on it now, which is basically a stage 1 and cam. That is around 38 to 40 mpg what size and manufacture should I look at?
I haven't heard good things about RevTech, but S&S and Ultima seem to have good reps on to boards. Also if I get a new motor what can I keep from my stock EVO 80 going to a crate EVO? Can I use my tranny and other components?
As always any feedback is great.
I keep it serviced and in good order, but like every vehicle it still doesn't have the go it used to have, so I've been thinking of maybe changing the motor and add some new life and feel back into it.
So here is my question. If I want something different and I want to stay in the mileage range I have now with the few upgrades I have on it now, which is basically a stage 1 and cam. That is around 38 to 40 mpg what size and manufacture should I look at?
I haven't heard good things about RevTech, but S&S and Ultima seem to have good reps on to boards. Also if I get a new motor what can I keep from my stock EVO 80 going to a crate EVO? Can I use my tranny and other components?
As always any feedback is great.
Stellar HDF Member
Joined: Jul 2014
Posts: 2,721
Likes: 243
From: NC
Originally Posted by roadrage12
I have a 1998 Fatboy. I'm coming up on 60k and I'm thinking about changing out the motor in the bike. I not looking to build I drag ride because I still use this bike and my other one to go on extended rides. The main reason that I'm thinking to upgrade is to add just a little more power and that the bike is starting to show and feel it's age.
I keep it serviced and in good order, but like every vehicle it still doesn't have the go it used to have, so I've been thinking of maybe changing the motor and add some new life and feel back into it.
So here is my question. If I want something different and I want to stay in the mileage range I have now with the few upgrades I have on it now, which is basically a stage 1 and cam. That is around 38 to 40 mpg what size and manufacture should I look at?
I haven't heard good things about RevTech, but S&S and Ultima seem to have good reps on to boards. Also if I get a new motor what can I keep from my stock EVO 80 going to a crate EVO? Can I use my tranny and other components?
As always any feedback is great.
I keep it serviced and in good order, but like every vehicle it still doesn't have the go it used to have, so I've been thinking of maybe changing the motor and add some new life and feel back into it.
So here is my question. If I want something different and I want to stay in the mileage range I have now with the few upgrades I have on it now, which is basically a stage 1 and cam. That is around 38 to 40 mpg what size and manufacture should I look at?
I haven't heard good things about RevTech, but S&S and Ultima seem to have good reps on to boards. Also if I get a new motor what can I keep from my stock EVO 80 going to a crate EVO? Can I use my tranny and other components?
As always any feedback is great.
Road Master
Joined: Sep 2013
Posts: 1,054
Likes: 441
From: Tejas
Simplest, easiest and cheapest route is to go with higher compression pistons and possibly a more aggressive camshaft. Add in a good 2:1 exhaust and it'll feel like a new bike. And the mileage will be about the same.
Going aftermarket on the motor is fine also. Mine is. Almost everything will be re-usable on it depending on how large you want to go. Definitely requires a good exhaust also, so figure that in too on costs..
Either is a good do-it-yourself project and will get you closer to the sled.
Griz
Going aftermarket on the motor is fine also. Mine is. Almost everything will be re-usable on it depending on how large you want to go. Definitely requires a good exhaust also, so figure that in too on costs..
Either is a good do-it-yourself project and will get you closer to the sled.
Griz
Tourer
Joined: Jul 2013
Posts: 431
Likes: 46
From: Las Vegas
You can rebuild it fully including big bore and/or stroker motor to gain some more displacement or, go after market. In my 97' FLHT, I choose to go with TP Eng in a 121" and still use stock trans and the original belt. You just have to be mindful of how much power you apply from a dead stop.
Any builder can have some bad components are failures due to build or user, do some homework & good luck
Any builder can have some bad components are failures due to build or user, do some homework & good luck
Ultimate HDF Member
Joined: May 2006
Posts: 6,590
Likes: 444
From: Ohio
Did someone tell you that 60k was when your motor would be worn out? After doing a compression test and maybe some inspections you should be able to figure out why the bike feels "old" to you. EVO motors last much longer than you think.
If what you want is more power (normal), and a shiney new motor for bragging rights, cool, do it, but don't blame it on the EVO.
If what you want is more power (normal), and a shiney new motor for bragging rights, cool, do it, but don't blame it on the EVO.
Stellar HDF Member
Joined: Dec 2010
Posts: 3,275
Likes: 669
From: The Rust Belt!
Why are you ditching the motor at only 60k? Should be good for many more miles unless there's something wrong and even if there was id just get it rebuilt.
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Joined: Jul 2014
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Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
OP in a sense of fairness I should let you know I have over 140k on my motor and am quite happy with it.
A friend has over 1/4 mill on his.
At 60k do a top end gasket set and some new lifters and ride it IMO.
A friend has over 1/4 mill on his.
At 60k do a top end gasket set and some new lifters and ride it IMO.