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.

Lifter Rant..........

Thread Tools
 
Search this Thread
 
Old Apr 8, 2015 | 09:47 PM
  #21  
98hotrodfatboy's Avatar
98hotrodfatboy
Thread Starter
|
Seasoned HDF Member
15 Year Member
Liked
Loved
Joined: Mar 2010
Posts: 21,161
Likes: 7,668
From: Poolville
Default Didn't predict that...

I really didn't think that a 4* change in the intake valve closing would jump me from what I was told at 195-200 ccp. When I did my calculations with the w8 cam it only came to 198 psi and with the new cam it should have only came up to 206 psi but my actual measured is 225 psi and I also tried a second gauge to confirm. If I decide to keep the new cam I will probably have to knock down the cr with either a .045 or .060 head gasket. For the time being I am gonna drop some VP fuel in it, knock the ignition curve to 3 or 4 with the D2ki ignition to see what it's producing on the dyno and go from there. will have it running thursday night and maybe on the dyno saturday. I didn't think that detonation could be that damaging.
 
Reply
Old Apr 9, 2015 | 08:08 AM
  #22  
dynawg1's Avatar
dynawg1
Tourer
10 Year Member
Joined: Sep 2014
Posts: 420
Likes: 5
From: Kingsport, TN
Default

Originally Posted by 98hotrodfatboy
...I didn't think that detonation could be that damaging.
Have you checked the tops of your pistons with a remote scope?
 
Reply
Old Apr 9, 2015 | 08:34 AM
  #23  
98hotrodfatboy's Avatar
98hotrodfatboy
Thread Starter
|
Seasoned HDF Member
15 Year Member
Liked
Loved
Joined: Mar 2010
Posts: 21,161
Likes: 7,668
From: Poolville
Default

No I didn't, I don't have a scope. But the leak down and compression test was a positive indication that none of the valves bent.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
FastHoss
Touring Models
7
Jul 23, 2017 05:13 PM
roundy
Touring Models
3
Aug 23, 2016 03:39 PM
Rumbo
Engine Mechanical Topics
4
Apr 27, 2015 10:39 AM
inthechateau
Exhaust System Topics
8
May 10, 2011 08:07 AM
byersmtrco
Exhaust System Topics
6
Jan 14, 2009 10:44 AM




All times are GMT -5. The time now is 10:27 AM.

story-0
10 Most Awkward-Looking Motorcycles Ever Built

Slideshow: Not every motorcycle can be a design icon, and these machines prove that bold styling doesn't always age gracefully.

By Verdad Gallardo | 2026-06-12 11:58:41


VIEW MORE
story-1
Jason Momoa Is Turning Classic Harleys Into PHEVs

Slideshow: Jason Momoa's latest restoration project blends 1920s Harley-Davidsons with modern electric technology, creating some of the most unusual hybrid motorcycles ever built.

By Verdad Gallardo | 2026-06-10 17:18:58


VIEW MORE
story-2
Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom

Slideshow: Killer Custom's latest build relies on styling changes rather than performance upgrades, giving the cruiser an entirely different personality.

By Verdad Gallardo | 2026-06-03 18:28:05


VIEW MORE
story-3
6 Weirdest Harley-Davidsons Ever Sold to the Public

Slideshow: From military-inspired singles to scooters and three-wheel utility vehicles, these Harleys took the company far outside its comfort zone.

By Verdad Gallardo | 2026-06-02 18:34:10


VIEW MORE
story-4
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-5
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-6
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-7
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-8
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-9
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