Go Back  Offshoreonly.com > Technical > General Q & A
Builder used different cam than specified. >

Builder used different cam than specified.

Notices

Builder used different cam than specified.

Thread Tools
 
Old 01-16-2016 | 11:08 PM
  #21  
Registered
15 Year Member
 
Joined: Oct 2007
Posts: 8,439
Likes: 94
From: yorkville,il
Default

just tell him he gets to replace the engine on his dime after reversion kills it,he just might install the cam you told him to.
mike tkach is offline  
Reply
Old 01-17-2016 | 12:10 AM
  #22  
Registered
 
Joined: Mar 2012
Posts: 4,189
Likes: 55
From: Cape coral, FL
Default

110lsa is definitely risking reversion on wet exhaust.
Crude Intentions is offline  
Reply
Old 01-17-2016 | 06:25 AM
  #23  
SB
Registered
20 Year Member
 
Joined: Nov 2004
Posts: 14,108
Likes: 3,694
From: On A Dirt Floor
Default

Comp 11-314-4 280ah-10 Hyd Flat Tappet
232°, 237° at .050"
Valve Lift .547", .547 "
LSA 110°
14.5° Overlap at .050"

Crane 134561 H-296-2 Hyd Flat Tappet
236°,246° at .050"
.553", .571"
LSA 114
13° Overlap at .050"
SB is offline  
Reply
Old 01-17-2016 | 06:47 AM
  #24  
Registered
10 Year Member
 
Joined: Aug 2010
Posts: 152
Likes: 0
From: Stockton, CA
Default

Originally Posted by SB
Comp 11-314-4 280ah-10 Hyd Flat Tappet
232°, 237° at .050"
Valve Lift .547", .547 "
LSA 110°
14.5° Overlap at .050"

Crane 134561 H-296-2 Hyd Flat Tappet
236°,246° at .050"
.553", .571"
LSA 114
13° Overlap at .050"
There you go. Side by side.

To me that 110 lobe center starts getting interesting because even though the Comp cam appears smaller its actually a rougher idle with a mid range power band .

Normally aspirated as I stated low idle reversion could be and issue. It is super charged now and that will change the reversion pulses at idle (Low Low idle are still a issue)

I think it will be Fine but you may want to check back in with Mild Thunder whom your original set up was with and confirm. He's been down this road with his experience.
.
Engine warranty ?? Just curious
cmattj is offline  
Reply
Old 01-17-2016 | 07:37 AM
  #25  
jeff32's Avatar
Registered
20 Year Member
 
Joined: Jun 2004
Posts: 8,219
Likes: 573
From: St-Hyacinthe, quebec, canada
Default

Originally Posted by 79formula
I could strangle this guy right now!
How many hp under your 600 mark
jeff32 is offline  
Reply
Old 01-17-2016 | 07:43 AM
  #26  
Registered
25 Year Member
 
Joined: Feb 2001
Posts: 484
Likes: 26
From: Elizabethtown KY USA
Default

Originally Posted by 79formula
I have EMI Thunder exhaust with taller risers. The water mixes in about 5 inches before the transom. Do you think I will suffer from reversion?
Not sure about the cam "he picked" but feel you would have a high likely hood with the 134561. I used that cam in a 454 after it being recommended by a very well know person in the industry. It was to much for the exhaust I had and I did have a reversion issue.

Mark
GETTINBYE is offline  
Reply
Old 01-17-2016 | 07:47 AM
  #27  
Thread Starter
Registered
 
Joined: Oct 2012
Posts: 896
Likes: 38
From: Buffalo NY
Default

Originally Posted by jeff32
How many hp under your 600 mark
I have not dynoed it yet. I just have a really bad taste in my mouth from this builder.
79formula is offline  
Reply
Old 01-17-2016 | 07:51 AM
  #28  
Craney's Avatar
Registered
20 Year Member
 
Joined: Oct 2004
Posts: 2,670
Likes: 651
From: Clayton NJ
Default

Is he paid in full? If not hold a $1000 in a escrow, if you have no reversion and makes 600+ hp you release the money.
Craney is offline  
Reply
Old 01-17-2016 | 07:56 AM
  #29  
SB
Registered
20 Year Member
 
Joined: Nov 2004
Posts: 14,108
Likes: 3,694
From: On A Dirt Floor
Default

Originally Posted by GETTINBYE
Not sure about the cam "he picked" but feel you would have a high likely hood with the 134561. I used that cam in a 454 after it being recommended by a very well know person in the industry. It was to much for the exhaust I had and I did have a reversion issue.

Mark
NA or Roots SC ? What exhaust ?
SB is offline  
Reply
Old 01-17-2016 | 07:56 AM
  #30  
vintage chromoly's Avatar
Gold Member
10 Year Member
Gold Member
 
Joined: Sep 2011
Posts: 2,643
Likes: 18
From: cleveland ohio
Default

How about telling us who it is so no one else has to go down the same path?
vintage chromoly is offline  
Reply


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.