Feb 13, 2015, 01:41 PM
Last edit by: IB Advertising
Everything Breakout! Find out everything you need to know! Some topics include:
• Customizing you bike
• Seats
• Risers
• And much more!
For more information check out these threads:More Threads
• Customizing you bike
• Seats
• Risers
• And much more!
For more information check out these threads:More Threads
The Everything Breakout Thread
Outstanding HDF Member
Joined: Jun 2014
Posts: 3,185
Likes: 189
From: 90210
got it- you should be getting 105hp/110tq or better especially considering you have good hillside heads. seriously though, change out the final drive pulleys and you'll crap a gold twinkie. I believe the 30t front from a Tri Glide fits right on- i have the info somewhere but there is indeed a direct fitment part. you should be able to use the same belt - i plan to do my front pulley this fall.
Outstanding HDF Member
Joined: Jun 2014
Posts: 3,185
Likes: 189
From: 90210
your compression is too low for optimal use of the 57h - you should be at 10.5-10.6:1
Most folks buy the 57H or other cams under 600 lift so it will work with the stock HD heads. e.g. "bolt in upgrade"
Get a higher lift cam like 625-650, intake close around 41-42, 52mm TB and 4.9 injectors, and raise your CR to 10.6:1 by trimming the tops of cylinders to zero-deck the piston. set your final quench to about 0.035 with the combination of cylinder trimming plus the head gasket. this math can be worked out before hand- it's basic 101 stuff for any competent engine builder.
This is a kick *** cam for a town bike 103 or larger motor. period. look at the specs- T-Man makes very good cams. http://tmanperformance.com/Cams/t-man-625/
Lastly- gearing is key with a good cam. most all "town cams" that bring on the TQ early like to have final gearing in the mid 3 range, like 3.6 or 3.75. if you call a cam maker like Bob Woods or Tman and ask what cam they recommend, they will most always ask what your final gearing ratio is. all these things work together to give you an insane ride. if one thing is off it kills everything else. if your current engine builder is not bringing these things up, may want to shop around.
Also you will need roller rockers for cams over 600 lift- Jims are very good.
Last edited by LA_Dog; May 20, 2015 at 02:15 AM.
Outstanding HDF Member
Joined: Jun 2014
Posts: 3,185
Likes: 189
From: 90210
so anyway I know I threw a lot out there so let me sum it up- if you re-think your current 103 build and optimize it, and do the pulley swap, I'm 100% sure you will get what you want at half the cost of what you're planning to spend on a 124 build.
Road Captain
Joined: Aug 2014
Posts: 624
Likes: 0
From: Central Arkansas
k that's what I thought- so you paid for top performance with the heads but are not yet using it
your compression is too low for optimal use of the 57h - you should be at 10.5-10.6:1
Most folks buy the 57H or other cams under 600 lift so it will work with the stock HD heads. e.g. "bolt in upgrade"
Get a higher lift cam like 625-650, intake close around 41-42, 52mm TB and 4.9 injectors, and raise your CR to 10.6:1 by trimming the tops of cylinders to zero-deck the piston. set your final quench with the head gasket. this math can be worked out before hand- it's basic 101 stuff for any competent engine builder.
This is a kick *** cam for a town bike 103 or larger motor. period. look at the specs- T-Man makes very good cams. http://tmanperformance.com/Cams/t-man-625/
Lastly- gearing is key with a good cam. most all "town cams" that bring on the TQ early like to have final gearing in the mid 3 range, like 3.6 or 3.75. if you call a cam maker like Bob Woods or Tman and ask what cam they recommend, they will most always ask what your final gearing ratio is. all these things work together to give you an insane ride. if one thing is off it kills everything else. if your current engine builder is not bringing these things up, may want to shop around.
Also you will need roller rockers for cams over 600 lift- Jims are very good.
your compression is too low for optimal use of the 57h - you should be at 10.5-10.6:1
Most folks buy the 57H or other cams under 600 lift so it will work with the stock HD heads. e.g. "bolt in upgrade"
Get a higher lift cam like 625-650, intake close around 41-42, 52mm TB and 4.9 injectors, and raise your CR to 10.6:1 by trimming the tops of cylinders to zero-deck the piston. set your final quench with the head gasket. this math can be worked out before hand- it's basic 101 stuff for any competent engine builder.
This is a kick *** cam for a town bike 103 or larger motor. period. look at the specs- T-Man makes very good cams. http://tmanperformance.com/Cams/t-man-625/
Lastly- gearing is key with a good cam. most all "town cams" that bring on the TQ early like to have final gearing in the mid 3 range, like 3.6 or 3.75. if you call a cam maker like Bob Woods or Tman and ask what cam they recommend, they will most always ask what your final gearing ratio is. all these things work together to give you an insane ride. if one thing is off it kills everything else. if your current engine builder is not bringing these things up, may want to shop around.
Also you will need roller rockers for cams over 600 lift- Jims are very good.
Andrews recommends stock compression and not to go over 10.1 that's why it was set at 10.1.
I just picked the wrong cam and should have went to a 107 while the heads were off.
Outstanding HDF Member
Joined: Jun 2014
Posts: 3,185
Likes: 189
From: 90210
but really if you get a better cam, TB, injectors, you'll see a lot more out of those nice heads. i suppose dropping in 107 cylinders wouldn't be a big ordeal either- but you will definitely need the bigger TB and injectors either way if you want max hp/tq. you could look at the final drive gearing swap as an equivalent to adding more CI to the motor. does the same thing, makes the bike get up and go faster.
Elite HDF Member
Joined: Jul 2008
Posts: 4,762
Likes: 12
From: north jersey
black JJ Hellbent pipes
WCC Hellbent Pipe add BAFFLE - YouTube
on a Breakout in chrome
After hell bent exhaust - YouTube
WCC Hellbent Pipe add BAFFLE - YouTube
on a Breakout in chrome
After hell bent exhaust - YouTube
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Outstanding HDF Member
Joined: Jun 2014
Posts: 3,185
Likes: 189
From: 90210
i know you're gettin some idea now.. right?? lol
Elite HDF Member
Joined: Jul 2008
Posts: 4,762
Likes: 12
From: north jersey
Getting some ideas?! I've been obsessing over mid controls on my sled for months now.
I'm pretty much settled on the exile cycles Kit. But my interest still peaks when I see a different mid control set up on a softail frame.
I'm also looking for a new exhaust for my rocker. Hellbents are one my radar as well.
I'm pretty much settled on the exile cycles Kit. But my interest still peaks when I see a different mid control set up on a softail frame.
I'm also looking for a new exhaust for my rocker. Hellbents are one my radar as well.