Register

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
Page 1 of 2 12 LastLast
Results 1 to 10 of 13
  1. #1
    Back in another old BAJA VIP Member Baja226sport's Avatar
    My Boats:
    2011 16ft Tracker Grizzly 40hp....Fast!, Baja 280
    Join Date
    Mar 2003
    Location
    PA/MD
    Posts
    2,073

    454 425hp Ignition Timing??

    Setting up a 454 ho 425 crate motor in a project. It has been completely marinized and had the cam swapped for a marine grind. Should be 425-450hp.....

    Anyway, looking for a base timing set point. It has been a good while since I have done this. Soooooo......help is appreciated.

    INstalled NGK bpr6fs plugs, gap at .038 does that sound right?

  2. #2
    Registered
    My Boats:
    1987 Formula 242, 1989 Formula 292 SR1
    Join Date
    May 2009
    Location
    Evanston, IL
    Posts
    2,041
    I'm by no mean an expert on this, but I think you're going to be told to set the timing at full advance. That's how I've set mine in the past. At full advance I'm at at 36 degrees. What cam are you running?

  3. #3
    Registered
    My Boats:
    04 donzi zrc,06 donzi zfo
    Join Date
    Jun 2005
    Location
    Annapolis Md
    Posts
    564
    12-14 at idle,34 at 3500 and above more timing might give alittle more power but might cause problems if fuel goes stale

  4. #4
    Registered
    My Boats:
    1987 Formula 242, 1989 Formula 292 SR1
    Join Date
    May 2009
    Location
    Evanston, IL
    Posts
    2,041
    Also what ignition module are you using, that's a very important factor as the amount of advance varies from model to model.

  5. #5
    Charter Member # 55 Charter Member Griff's Avatar
    My Boats:
    ............................... 32 Active Thunder
    Join Date
    Oct 2000
    Location
    Omaha
    Posts
    13,546
    Timing at total advance should be set to around 34*. Base timing at idle will depend on what ignition and module you are using.

  6. #6
    Back in another old BAJA VIP Member Baja226sport's Avatar
    My Boats:
    2011 16ft Tracker Grizzly 40hp....Fast!, Baja 280
    Join Date
    Mar 2003
    Location
    PA/MD
    Posts
    2,073
    Quote Originally Posted by endeavour32 View Post
    I'm by no mean an expert on this, but I think you're going to be told to set the timing at full advance. That's how I've set mine in the past. At full advance I'm at at 36 degrees. What cam are you running?
    This particular engine has a crane .553/.587 lift 214/226 duration @ .050 112 lobe sep

  7. #7
    Registered
    My Boats:
    1989 Baja 265 Force
    Join Date
    Jan 2008
    Location
    Greensburg, IN
    Posts
    94
    Quote Originally Posted by Baja226sport View Post
    This particular engine has a crane .553/.587 lift 214/226 duration @ .050 112 lobe sep
    Are you running a MSD 6AL box? I am looking for the similar answers to your question as well.

    My cam however is slightly different .608/.618 lift 236/239 w/a 114 lobe.(rough #'s, misplaced my cam card for now)
    I was told by others ~9 @ idle(900rpm) and ~36 @ 3000rpm. I have a MSD Pro distributor(no vacuum) and the engine builder took the springs out of it and pretty much locked it at full advance. It seems to run decent on the hose, but I'm still questioning removing the springs.

    Today I'll find out, gonna give it a test run....

  8. #8
    Back in another old BAJA VIP Member Baja226sport's Avatar
    My Boats:
    2011 16ft Tracker Grizzly 40hp....Fast!, Baja 280
    Join Date
    Mar 2003
    Location
    PA/MD
    Posts
    2,073
    Stock merc ignition on this one.

  9. #9
    Platinum Member Platinum Member CIG3's Avatar
    My Boats:
    28' Cigarette
    Join Date
    Jan 2001
    Location
    Grand River, Ohio
    Posts
    1,756
    34 degrees at 3000rpm

  10. #10
    Back in another old BAJA VIP Member Baja226sport's Avatar
    My Boats:
    2011 16ft Tracker Grizzly 40hp....Fast!, Baja 280
    Join Date
    Mar 2003
    Location
    PA/MD
    Posts
    2,073
    Quote Originally Posted by CIG3 View Post
    34 degrees at 3000rpm
    Ok, next question....how do you do that? I guess I have to do it in the water at the dock. I am not sure about anything more than idle speed on the hose.


Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
OSO Sponsor
OSO Advertisers


OSO Directory
All times are GMT -5. The time now is 09:12 PM.
Powered by vBulletin® Version 4.2.0
Copyright © 2014 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 © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Copyright 2011 OffShoreOnly. All rights reserved.