If this is your first visit, please click the Sign Up now button to begin the process of creating your account so you can begin posting on our forums! The Sign Up process will only take up about a minute of two of your time.

Follow us on Facebook Follow us on Twitter
Results 1 to 4 of 4

Thread: HP500 Vs 525

  1. #1
    My Boats:
    Join Date
    Oct 2004
    Lexington, SC

    HP500 Vs 525

    Whats the difference between theese two. What makes the 525 so much more desirable then the hp500. Efi engines also inject the regular 502 efi in here as well.
    Last edited by superwrench0166; 08-11-2007 at 03:12 PM.

  2. #2
    Platinum Member Platinum Member Young Performance's Avatar
    Join Date
    Jan 2004
    The 525 has aluminum heads and closed cooling and a Motorola computer. The 500 has cast iron heads, is raw water cooled and is also no longer produced. Eddie

  3. #3
    Join Date
    Oct 2004
    Newbury Park, CA
    Quote Originally Posted by runninhotracing158 View Post
    We ran our 33 DAYTONA with 500 hps at 113.8 mph bone stock and ran flawlessly,WE RAN 525'S IN OUR 31 FT ACTIVE THUNDERand they ran good but when we turned the boost up to 7 lbs we were pullin motors every monday morn
    I thought 525's were naturally aspirated.


  4. #4
    Registered racesdad's Avatar
    My Boats:
    07 368 SKATER and shes bad
    Join Date
    Mar 2002
    racing capitol of the world
    the old 525 was blown. the 525 closed cooling system is great. if not in your budget, then send the 500efi to innovation for a upgrade to 525 specs, and she will have more torque than the new ones. we have both.

Similar Threads

  1. Looking for a complete HP500
    By onesickpantera in forum General Boating Discussion
    Replies: 14
    Last Post: 02-25-2014, 09:07 PM
  2. Hp500 ???
    By niceguy in forum General Q & A
    Replies: 1
    Last Post: 07-19-2008, 10:44 PM
  3. GMPP Ram Jet 502 vs Merc HP500/525 EFI
    By handfulz28 in forum General Q & A
    Replies: 35
    Last Post: 08-30-2007, 10:36 AM
  4. Hp500
    By Lofty in forum General Q & A
    Replies: 0
    Last Post: 12-03-2004, 11:16 AM
  5. Hp500 Intake
    By Madmax in forum General Q & A
    Replies: 4
    Last Post: 04-23-2004, 06:10 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
All times are GMT -5. The time now is 07:06 PM.
Powered by vBulletin® Version 4.2.0
Copyright © 2016 vBulletin Solutions, Inc. All rights reserved.
Search Engine Optimization by vBSEO 3.6.1
Original Poster In Postbit provided by Original Poster In Postbit v1.0.0 (Free) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Copyright 2011 OffShoreOnly. All rights reserved.