Performance upgrade
Club Member
Joined: Jul 2013
Posts: 468
Likes: 222
From: NorCal
I have a 2013 RK with Fullsac header and Rinehart slip-ons, and I put in the 57H cam last November. I like it a lot, but some folks thing you lose too much off the bottom end with this cam. I ride this bike solo almost all the time, and it has not been a problem for me. I have not had it tuned (currently on canned Dynojet tune), so I can't tell you what it is putting out. I know the thing gets up on the freeway right quick.
Last edited by Old_Bikes; Nov 1, 2020 at 07:28 PM. Reason: corrected year
Thread Starter
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Intermediate
Joined: May 2017
Posts: 36
Likes: 2
From: michigan
I have a 2013 RK with Fullsac header and Rinehart slip-ons, and I put in the 57H cam last November. I like it a lot, but some folks thing you lose too much off the bottom end with this cam. I ride this bike solo almost all the time, and it has not been a problem for me. I have not had it tuned (currently on canned Dynojet tune), so I can't tell you what it is putting out. I know the thing gets up on the freeway right quick.
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Intermediate
Joined: May 2017
Posts: 36
Likes: 2
From: michigan
I’m not to good at getting around this site as I’m kinda new here so forgive me if I make mistakes thank you
thanks for your reply, I ride solo most of the time as she has a 13 Switchback, but I’m looking for more power for when she rides with me (passenger) for the most part I’m happy with the performance as is but I need just a little more, I can feel the difference when she is on the bike.
thanks for your reply, I ride solo most of the time as she has a 13 Switchback, but I’m looking for more power for when she rides with me (passenger) for the most part I’m happy with the performance as is but I need just a little more, I can feel the difference when she is on the bike.
Novice
Joined: Sep 2016
Posts: 20
Likes: 5
From: Syracuse NY
Cams
Road Master
Joined: May 2012
Posts: 769
Likes: 375
From: Bay Area
The Andrews 48 is a really good cam for stock compression 96 and 103s, I've never heard or seen anything but rave reviews. The Fuel Moto 103 dyno post is a really good resource, if I were riding 2 up on a 103 I'd go with the Andrews 48 over the 57.
Seasoned HDF Member
Joined: Mar 2008
Posts: 9,387
Likes: 1,777
From: Central Texas
Trending Topics
Club Member
Joined: Jul 2013
Posts: 468
Likes: 222
From: NorCal
I agree with Sean regarding the 48H cam for two up riding. It will give you more grunt in the lower RPM ranges, and it is better with stock compression. The 57H is good for solo, but you do need to get some RPMs going.
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Elite HDF Member
Joined: Jul 2007
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From: 48.067222,12.863611
If you're not going to bump up compression via at least a .030 HG, I'd do the Andrews 48. The 57 really needs 10.2 compression or above.
Make sure you get a real tuner (TTS, PV), a good exhaust, and a real dyno tune. If you don't save your money.
Make sure you get a real tuner (TTS, PV), a good exhaust, and a real dyno tune. If you don't save your money.
