Go Back  Offshoreonly.com > Technical > General Q & A
500 hp carb set up >

500 hp carb set up

Notices

500 hp carb set up

Old 04-23-2010, 10:58 AM
  #1  
Registered
Thread Starter
 
Join Date: Nov 2005
Location: Fredericksburg, Va
Posts: 4,554
Likes: 0
Received 2 Likes on 2 Posts
Default 500 hp carb set up

ok finishing my 500hp, +.030, factory cam, intake, but has stainless marine full headers, doing up a 800 DP, just cause I have one, milling the airhorn, where's a good place to start jetting wise on this setup...Thanks Rob...also how much total timing to run on 87 at times..

Last edited by ezstriper; 04-26-2010 at 05:58 AM.
ezstriper is offline  
Old 04-26-2010, 05:59 AM
  #2  
Registered
Thread Starter
 
Join Date: Nov 2005
Location: Fredericksburg, Va
Posts: 4,554
Likes: 0
Received 2 Likes on 2 Posts
Default

ttt
ezstriper is offline  
Old 04-26-2010, 08:12 AM
  #3  
Registered
 
blue thunder's Avatar
 
Join Date: Nov 2001
Location: Pennsylvania
Posts: 3,385
Likes: 0
Received 0 Likes on 0 Posts
Default

77p - 92s with a 4.5pv in the primary. This assumes air bleeds are fixed and original. You could also get the hp500 specs and do the staggered jetting.

34 degrees timing all in.
blue thunder is offline  
Old 04-26-2010, 12:58 PM
  #4  
Charter Member # 55
Charter Member
 
Griff's Avatar
 
Join Date: Oct 2000
Location: Omaha/LOTO
Posts: 19,516
Received 1,782 Likes on 884 Posts
Default

Holley 800cfm HP500 stock jetting is:

Primary - Port 81, Stbd 75
Secondary - Port 89, Stbd 93

6.5 PV in the front. The secondaries don't have a PV.

If I was rejetting, I would probably just use 77 primary jets and 91 secondary jets.
Griff is offline  
Old 04-27-2010, 06:22 AM
  #5  
Registered
Thread Starter
 
Join Date: Nov 2005
Location: Fredericksburg, Va
Posts: 4,554
Likes: 0
Received 2 Likes on 2 Posts
Default

thanks guys, just what I needed...and just getting ready to put carb together !! Rob
ezstriper is offline  
Old 04-27-2010, 07:31 AM
  #6  
Registered
 
Join Date: Dec 2007
Posts: 694
Received 1 Like on 1 Post
Default

http://www.mercruiserparts.com/Show_...OR+AND+LINKAGE here mec setup
bajabob is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


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

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.