Go Back  Offshoreonly.com > Owners Forum > Fountain
switching my 500efi's for new single carb motors?. up side? down side? >

switching my 500efi's for new single carb motors?. up side? down side?

Notices

switching my 500efi's for new single carb motors?. up side? down side?

Old 05-26-2012, 06:50 AM
  #1  
Registered
VIP Member
Thread Starter
iTrader: (1)
 
Join Date: Aug 2004
Location: Apollo Beach, FL
Posts: 347
Likes: 0
Received 0 Likes on 0 Posts
Default switching my 500efi's for new single carb motors?. up side? down side?

Looking at buying a single carb new motor set up making around 600hp... With some tweeking... My merc 500efi's could get close. I have a triple 500 set up in my 47 fountain. If i switch to single carb motors... Will i show any gas savings? Will it effect resale value up or down?? Any suggestions are greatly apreciated!!
TeamPSI is offline  
Old 05-26-2012, 07:35 AM
  #2  
Registered
 
Join Date: Jun 2005
Location: west palm beach FL,
Posts: 3,214
Received 6 Likes on 4 Posts
Default

the EFi's will be better on gas , don't go backward's to carb's

mike
mikebrls is offline  
Old 05-26-2012, 08:04 AM
  #3  
Registered
VIP Member
Thread Starter
iTrader: (1)
 
Join Date: Aug 2004
Location: Apollo Beach, FL
Posts: 347
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by mikebrls
the EFi's will be better on gas , don't go backward's to carb's

mike
that was my thought... just seems that there are a lot of single carb options out there that look pretty good right now with the HP ratings and gass consumption. If I am down in the middle of the bay... I can fix a carb motor with a few tools.... the EFI?... entirely different bag of tricks.
TeamPSI is offline  
Old 05-26-2012, 08:12 AM
  #4  
Registered
 
Join Date: Jun 2007
Location: Merritt Island, FL
Posts: 6,623
Received 1,310 Likes on 731 Posts
Default

My hp500EFI's have been very reliable, start any time any temp.

Why would you be worried about fixing a motor on the water when you have 3?

I understand your worry, I used to think the same thing a long time ago when I got my first injected bike. One season of mountain riding changed that.

Injection is great, what percentage of time do you think you would have a electronic failure, that a carb motor may be better to work on compared to run time without failure.
Wildman_grafix is offline  
Old 05-26-2012, 10:04 AM
  #5  
Registered
 
Join Date: Aug 2007
Location: Greensboro,NC
Posts: 676
Likes: 0
Received 0 Likes on 0 Posts
Default

All you need to get a 500efi a decent bit over 600hp is a good set of AFR heads and some custom cams from Bob Maddera. (RMbuilder on here) He knows just how to do it . Losing your EFI would be a mistake. Most buyers of large boats like yours want stock power that is reliable. My 500efi (that is now a 540) made 693HP on the dyno. Jeff Wurl
jwurl 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.