Go Back  Offshoreonly.com > Technical > General Q & A
Reversion what is the impact? >

Reversion what is the impact?

Notices

Reversion what is the impact?

Old 05-16-2006 | 09:52 PM
  #51  
Rage's Avatar
Thread Starter
Gold Member
 
Joined: Sep 2005
Posts: 1,987
Likes: 0
From: Missouri
Default Re: Reversion what is the impact?

That is a very interesting approach to dealing with reversion. Do you know of anyone else that run these to control reversion? Thanks.
Rage is offline  
Reply
Old 05-16-2006 | 10:01 PM
  #52  
Registered
 
Joined: Oct 2005
Posts: 314
Likes: 0
From: Ankeny IA
Default Re: Reversion what is the impact?

Originally Posted by Rage
That is a very interesting approach to dealing with reversion. Do you know of anyone else that run these to control reversion? Thanks.
I don't know of any offhand, but I originally was thinking of using them for their variable valve timing effect, so I would have more low end grunt.

Then I saw this:

http://boatheaders.com/reversion.htm

Where Lightning headers recommends them to reduce reversion. I was sold at that time, although I would like the rough idle sound.

Note that the info in the webpages is outdated, the Rhoads Lifters are now available as rollers.
jmherbert is offline  
Reply
Old 05-16-2006 | 10:05 PM
  #53  
Rage's Avatar
Thread Starter
Gold Member
 
Joined: Sep 2005
Posts: 1,987
Likes: 0
From: Missouri
Default Re: Reversion what is the impact?

Unfortunately I do not see them listed for a GM 496. The 454/502 lifter will not work because of the different oil galley in the 496. I think Crane and Morel are the only sources for the 496 lifter other than GM and the Morel is only good for the stock lift.
Rage is offline  
Reply
Old 05-17-2006 | 05:42 AM
  #54  
mcrsr's Avatar
Registered
 
Joined: Sep 2005
Posts: 79
Likes: 0
From: psl, fla
Default Re: Reversion what is the impact?

aren't they noisy???
mcrsr is offline  
Reply
Old 05-17-2006 | 08:22 AM
  #55  
Panther's Avatar
Frank's Marine Service
20 Year Member
Gold Member
 
Joined: Sep 2002
Posts: 11,959
Likes: 142
From: Elkton, MD
Default Re: Reversion what is the impact?

Originally Posted by mcrsr
aren't they noisy???
I heard that too but don't have first hand knowlege.
Panther is offline  
Reply
Old 05-17-2006 | 08:25 AM
  #56  
Registered
 
Joined: Oct 2005
Posts: 314
Likes: 0
From: Ankeny IA
Default Re: Reversion what is the impact?

Originally Posted by mcrsr
aren't they noisy???
Somewhere between solid lifters and hydraulic lifters. They don't 'tick' like a bad hydraulic lifter, they have a little bit of the solid lifter sound, not quite as loud but it is there if you listen for it.

I am still sorting out some issues w/water in crankcase, but hopefully I 'll be running this weekend. I'll let you know how they work on the water.
jmherbert is offline  
Reply
Old 05-17-2006 | 09:10 AM
  #57  
Rage's Avatar
Thread Starter
Gold Member
 
Joined: Sep 2005
Posts: 1,987
Likes: 0
From: Missouri
Default Re: Reversion what is the impact?

I just talked to Rhodes. No they do not offer a V-max lifter for the 496 but.... they will convert your existing 496 lifters to the V-max for $95. There is some question as to if the current push rod length will still work.

I asked about noise and was told it was "not too bad" and goes away above 4000 rpm. Reportedly this lifter design has been around since the 60's.

Why has this reversion solution not taken the high performance NA marine applicatiopns by storm? What am I missing here?
Rage is offline  
Reply
Old 05-17-2006 | 10:01 AM
  #58  
Registered
 
Joined: Oct 2005
Posts: 314
Likes: 0
From: Ankeny IA
Default Re: Reversion what is the impact?

I think a lot of people are skeptical that they do as advertised. I know I was until I heard 1st hand from people that have run them. From those who I know have actually run them, they all recommended them. The only negative comments I have heard are from those who haven't run them, all 2nd or 3rd hand kind of info. As I said, I can't comment on actual performance gains yet, and actually I won't be able to compare it to a baseline anyway, but I can tell you I don't have a lopey idle where I know with normal lifters I would.

Another thing may be people don't know or think about them helping reversion.
jmherbert is offline  
Reply
Old 05-17-2006 | 10:13 AM
  #59  
Rage's Avatar
Thread Starter
Gold Member
 
Joined: Sep 2005
Posts: 1,987
Likes: 0
From: Missouri
Default Re: Reversion what is the impact?

Originally Posted by jmherbert
An old Indian trick is to use Rhoades Lifters. I am running a crane 100072 (228@050, 112LSA) and I have little if any lope at idle. I know without the Rhoades lifters that cam would have a lopey idle. The 'lopey idle' is what causes reversion.
Did you run this cam and get reversion before installing the Rhoades lifters or did they go in when the cam went in? If you did get reversion without the Rhoades lifters how much did these lifters reduce reversion?
Rage is offline  
Reply
Old 05-17-2006 | 10:16 AM
  #60  
Mike Paula's Avatar
Registered
 
Joined: Mar 2005
Posts: 264
Likes: 0
From: Las Vegas NV
Default Re: Reversion what is the impact?

Ok Am I missing something here? You guys seem to be making a big project out of this problem. I am running a 502/502 cam with a very tight 110 lsa I took my Stainless Marine risers and lengthen the exhaust tube 12" and I have no problem I also did this with a set of Gils on a blower motor. Am I missing something here?
Mike Paula 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.