Engine Mechanical Topics Discussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.

Help with cam 107 build

Thread Tools
 
Search this Thread
 
Old Aug 30, 2019 | 06:06 AM
  #11  
Hillsidecycle.com's Avatar
Hillsidecycle.com
Sponsor
Joined: Dec 2007
Posts: 12,084
Likes: 829
Default

The CR .570-2 falls into the good cam listing.
We've seen the Cobra NH not so good with a 117" here,(Borezilla aced it later) but not saying they won't work fine with your 107".
Tuning will tell that story.
Scott
 
Reply
Old Aug 30, 2019 | 05:05 PM
  #12  
Steve Helton's Avatar
Steve Helton
Thread Starter
|
Tourer
Joined: Mar 2015
Posts: 348
Likes: 54
From: Big Rock Va.24603
Default

Originally Posted by Hillsidecycle.com
The CR .570-2 falls into the good cam listing.
We've seen the Cobra NH not so good with a 117" here,(Borezilla aced it later) but not saying they won't work fine with your 107".
Tuning will tell that story.
Scott
Thanks Scott going to get a tune soon.
 
Reply
Old Oct 4, 2019 | 08:36 AM
  #13  
Steve Helton's Avatar
Steve Helton
Thread Starter
|
Tourer
Joined: Mar 2015
Posts: 348
Likes: 54
From: Big Rock Va.24603
Default

Got it tuned runs good 101hp and 118tq no hesitation but have a slight decel pop not bad but wish it wasn't there.
 
Reply
Old Oct 5, 2019 | 07:32 AM
  #14  
2013_FLHTK's Avatar
2013_FLHTK
Road Warrior
10 Year Member
Liked
Loved
Community Favorite
Joined: Oct 2013
Posts: 1,399
Likes: 1,040
From: Seabrook, NH
Default

Originally Posted by Steve Helton
Got it tuned runs good 101hp and 118tq no hesitation but have a slight decel pop not bad but wish it wasn't there.
Love to see the dyno sheet...
 
Reply
Old Oct 5, 2019 | 05:10 PM
  #15  
Steve Helton's Avatar
Steve Helton
Thread Starter
|
Tourer
Joined: Mar 2015
Posts: 348
Likes: 54
From: Big Rock Va.24603
Default

Originally Posted by 2013_FLHTK
Love to see the dyno sheet...

 
Reply
Old Oct 6, 2019 | 04:42 AM
  #16  
2013_FLHTK's Avatar
2013_FLHTK
Road Warrior
10 Year Member
Liked
Loved
Community Favorite
Joined: Oct 2013
Posts: 1,399
Likes: 1,040
From: Seabrook, NH
Default

Originally Posted by Steve Helton
Got it tuned runs good 101hp and 118tq no hesitation but have a slight decel pop not bad but wish it wasn't there.
Looking at your sheet it appears you are hitting peak torque between 3,500 and 4,000 rpms. Is that correct?
 
Reply
Old Oct 6, 2019 | 06:40 AM
  #17  
Steve Helton's Avatar
Steve Helton
Thread Starter
|
Tourer
Joined: Mar 2015
Posts: 348
Likes: 54
From: Big Rock Va.24603
Default

Yes i looked at other cams but couldn't decide on one.I already had the cyclerama installed so i just went with it.
 
Reply
Old Oct 6, 2019 | 10:07 AM
  #18  
djl's Avatar
djl
HDF Community Team
Veteran: Army
15 Year Member
Photogenic
Liked
Joined: Jun 2006
Posts: 12,776
Likes: 2,607
From: san antonio
Community Team
Default

The posted chart is not typical of the Cyclerama cams which usually will hit 100TQ around 2400-2600 rpms. Motor should have plenty of compressio with CCP up around 200psi but maybe heads and exhaust are affecting the curve. Wouldn't expect the peak numbers to change much but those cams with all the other parts working together usually produce a much better curve. The comment about decel pop could mean a better tune was possible but could be a separate issue, like exhaust leak, etc.
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-5

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Old Oct 6, 2019 | 11:59 AM
  #19  
Steve Helton's Avatar
Steve Helton
Thread Starter
|
Tourer
Joined: Mar 2015
Posts: 348
Likes: 54
From: Big Rock Va.24603
Default

Checked exhaust and intake no leaks may be the tune.
 
Reply
Old Oct 6, 2019 | 12:02 PM
  #20  
sanman4ever's Avatar
sanman4ever
Club Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2012
Posts: 3,461
Likes: 329
From: Rhode Island
Riders Club Member
Default

Originally Posted by Steve Helton
Checked exhaust and intake no leaks may be the tune.
How did you check the exhaust for leaks?
 
Reply



All times are GMT -5. The time now is 03:58 PM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE