Go Back  Offshoreonly.com > Technical > General Q & A
500 efi upgrades >

500 efi upgrades

Notices

500 efi upgrades

Thread Tools
 
Old 09-24-2014 | 01:05 PM
  #11  
Registered
 
Joined: Jul 2012
Posts: 461
Likes: 1
From: Central Ohio
Default

Originally Posted by 33outlawsst
Your running low to mid 80's with stock 500 efi's ??
down hill.
MINK is offline  
Reply
Old 09-24-2014 | 01:08 PM
  #12  
598
Thread Starter
Registered
 
Joined: Sep 2007
Posts: 94
Likes: 1
From: East Gull Lake, MN.
Default

Yep , 83 to 85.6 on two gps . Hits the rev limiters with 30 pitch labs.
598 is offline  
Reply
Old 09-24-2014 | 02:03 PM
  #13  
Registered
 
Joined: Jul 2012
Posts: 461
Likes: 1
From: Central Ohio
Default

Originally Posted by 598
Yep , 83 to 85.6 on two gps . Hits the rev limiters with 30 pitch labs.
Thats rolling for a heavy boat and that power, what are your speed goals?
MINK is offline  
Reply
Old 09-24-2014 | 02:27 PM
  #14  
598
Thread Starter
Registered
 
Joined: Sep 2007
Posts: 94
Likes: 1
From: East Gull Lake, MN.
Default

I know it's hard to believe ,I didn't believe it when we were looking at the boat till I drove it. Upper 80s to 90, I think the hull can handle it.
598 is offline  
Reply
Old 09-24-2014 | 02:29 PM
  #15  
Registered
15 Year Member
 
Joined: Jun 2007
Posts: 7,311
Likes: 1,817
From: Merritt Island, FL
Default

Has anyone put one on a dyno with the Aetco kit? (Heads,cam,reprogram).
Wildman_grafix is offline  
Reply
Old 09-24-2014 | 02:33 PM
  #16  
SB
Registered
20 Year Member
 
Joined: Nov 2004
Posts: 14,100
Likes: 3,687
From: On A Dirt Floor
Default

From what I have seen, the 500EFI intake limits motors to just about 600hp.

Thus why Tyler Crocket makes the top mount throttle body conversion....for more power.

Also, why others switch to a more conventional EFI intake (Holley Single Plane and etc) if looking to make more steam.
SB is offline  
Reply
Old 09-24-2014 | 02:44 PM
  #17  
Knot 4 Me's Avatar
Registered
20 Year Member
 
Joined: Jun 2005
Posts: 8,407
Likes: 797
From: Central IL
Default

Brad Smith was able to get right at 600 HP on a pair of 500 EFI's for a buddy. Bored, new pistons, cam, head work, new injectors, PCM remap.
Knot 4 Me is offline  
Reply
Old 09-24-2014 | 02:56 PM
  #18  
F-2 Speedy's Avatar
Platinum Member
Community Builder
10 Year Member
Platinum Member
 
Joined: May 2012
Posts: 11,428
Likes: 3,955
From: Midwest & T-Rock
Default

Whats the length and weight of this boat
F-2 Speedy is offline  
Reply
Old 09-24-2014 | 03:30 PM
  #19  
598
Thread Starter
Registered
 
Joined: Sep 2007
Posts: 94
Likes: 1
From: East Gull Lake, MN.
Default

34 ft 8000 to 8500?
598 is offline  
Reply
Old 09-24-2014 | 04:21 PM
  #20  
KSFLYER1's Avatar
Registered
 
Joined: Dec 2003
Posts: 441
Likes: 0
From: snow?
Default

Originally Posted by 598
The motors have 350 hrs ,the heads were gone through at 300.the boat has xr drives . I'm thinking of opening up the motors at 400 hrs. It currently runs mid to low 80s.
Wow, I scratched my head on that one. Want to trade 500 EFI's?
KSFLYER1 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.