Go Back  Offshoreonly.com > Technical > Do It Yourself, Boating on a Budget
Building a pair of new 555's >

Building a pair of new 555's

Notices

Building a pair of new 555's

Thread Tools
 
Old 01-12-2017, 05:38 PM
  #11  
Registered
 
Join Date: Jul 2004
Location: chicago
Posts: 11,332
Received 71 Likes on 39 Posts
Default

Originally Posted by snapmorgan
800 Holleys to start out with, because that is what we have. Will see how they do on the dyno and go from there. Being prepped now by Ken Jones performance. He is somewhat of a legend around the Midwest, but mostly in his own mind. I will most likely end up with fuel injection on mine if it turns out that I like this boat.

The 8-71 has a chiller, I would put one on the 420, but where would I find one?
Teague has them new of course. But, sometimes you can find them used cheap. Having a chiller, will really make for a great comparison build to build.
MILD THUNDER is offline  
Old 01-12-2017, 05:39 PM
  #12  
Registered
Thread Starter
 
Join Date: Aug 2010
Location: Cape Coral FL
Posts: 2,144
Received 450 Likes on 268 Posts
Default

Originally Posted by Boatally Insane
Here is a link to my 555 build for reference..

That is pretty badass
snapmorgan is offline  
Old 02-13-2017, 08:58 AM
  #13  
Registered
Thread Starter
 
Join Date: Aug 2010
Location: Cape Coral FL
Posts: 2,144
Received 450 Likes on 268 Posts
Default

I am considering putting mechanical fuel pumps on these engines. Is anyone else doing this on 800-900hp engines? What are you running?
snapmorgan is offline  
Old 02-13-2017, 09:01 AM
  #14  
Registered
Thread Starter
 
Join Date: Aug 2010
Location: Cape Coral FL
Posts: 2,144
Received 450 Likes on 268 Posts
Default

Short blocks are done, cams degreed. I set of heads here today and getting ready to be installed
snapmorgan is offline  
Old 02-13-2017, 09:02 AM
  #15  
Registered
 
Join Date: Jul 2004
Location: chicago
Posts: 11,332
Received 71 Likes on 39 Posts
Default

Originally Posted by snapmorgan
I am considering putting mechanical fuel pumps on these engines. Is anyone else doing this on 800-900hp engines? What are you running?
Yes. The baker engineering mechanical pumps.
MILD THUNDER is offline  
Old 02-13-2017, 09:14 AM
  #16  
Registered
 
Join Date: Jun 2009
Location: Chicago
Posts: 8,936
Received 4,727 Likes on 1,353 Posts
Default

I`m running a baker mechanical pump with a regulator and tank return. -10AN lines
mild is running the Holley pumps self regulated and no return and it seems like no issues.
I was running out of fuel pressure with those at 6000rpm. Fuel gauge would start to drop to 4psi till I`d let off.



ICDEDPPL is offline  
Old 02-13-2017, 09:31 AM
  #17  
Registered
Thread Starter
 
Join Date: Aug 2010
Location: Cape Coral FL
Posts: 2,144
Received 450 Likes on 268 Posts
Default

Do you know the GPH needed?
snapmorgan is offline  
Old 02-13-2017, 10:42 AM
  #18  
Registered
 
Join Date: Jul 2004
Location: chicago
Posts: 11,332
Received 71 Likes on 39 Posts
Default

The 900sc and 1000sc mercury engines, used those style mechanical pumps. Fed two dominators at 6000rpm.
MILD THUNDER is offline  
Old 02-13-2017, 11:41 AM
  #19  
Registered
 
Join Date: Jun 2009
Location: Chicago
Posts: 8,936
Received 4,727 Likes on 1,353 Posts
Default

http://www.bakerengineeringinc.com/P...oCamParts.aspx
ICDEDPPL is offline  
Old 02-13-2017, 05:17 PM
  #20  
Registered
 
Join Date: Feb 2009
Location: NW Michigan
Posts: 8,305
Received 1,494 Likes on 808 Posts
Default

Originally Posted by ICDEDPPL
I`m running a baker mechanical pump with a regulator and tank return. -10AN lines
mild is running the Holley pumps self regulated and no return and it seems like no issues.
I was running out of fuel pressure with those at 6000rpm. Fuel gauge would start to drop to 4psi till I`d let off.




Where did you have your regulators set? Just wondering if you had set to the max flow, I'm running mechanical pumps on sc build with dual carbs and have the regulators but wasn't going to bother even installing given the new build. Mainly just to eliminate plumbing.
getrdunn is offline  


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.