Blower motor timming
+ Reply to Thread
Page 1 of 2 1 2 LastLast
Results 1 to 14 of 24

Thread:
Blower motor timming

  1. #1
    Senior Member blurred vision's Avatar
    Join Date
    Apr 2009
    Posts
    240

    Default Blower motor timming

    BLOWER MOTOR TIMMING, I have a 871 0n a 454,,,, MSD dist locked out at 28 degrees.....can i run more......Thanks,,,,also i run an intercooler

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    Senior Member ap67et10's Avatar
    Join Date
    Mar 2008
    Location
    Chico, Ca
    Posts
    1,533

    Default

    Quote Originally Posted by blurred vision View Post
    BLOWER MOTOR TIMMING, I have a 871 0n a 454,,,, MSD dist locked out at 28 degrees.....can i run more......Thanks,,,,also i run an intercooler

    boost, static compression, and fuel????

  4. #3
    SLOW MEMBER slowboy's Avatar
    Join Date
    Jun 2008
    Location
    Duluth, MN
    Posts
    470

    Default

    I believe the best way to time your engine is to look at the spark plug. It is easiest to read with a new plug. You want the strap of the plug to loose it coating or color in the middle of the bend.
    WORK HARDER, MILLIONS ON WELFARE DEPEND ON YOU.

  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    Senior Member blurred vision's Avatar
    Join Date
    Apr 2009
    Posts
    240

    Default

    the motor is 8.5 to 1 compression.....9 pounds of boost.....91 octane....

  7. #5
    Senior Member TwinTurbo540's Avatar
    Join Date
    Jan 2008
    Location
    spokane, WA
    Posts
    1,164

    Default

    Quote Originally Posted by blurred vision View Post
    the motor is 8.5 to 1 compression.....9 pounds of boost.....91 octane....
    What pistons? Cermaic Coated? What ignition controller? What spark plug and gap? What do you do with the boat? What rpm? What temp is the engine?
    I like my women like I like my boats......Fast and ready to get wet at all times!!

  8. #6
    Senior Member blurred vision's Avatar
    Join Date
    Apr 2009
    Posts
    240

    Default

    Forged non ceramic,,,,MSD 6AL MSD dist locked at 28 degrees,,Blower plugs heat range i dont know ....gapped at about .26....Top RPM around 5800..
    engine temp around 120 degrees....Intercooler.... use the boat going up river passing a few peeps...long runs averge about 5000 RPM,,,not wide open.....

  9. #7
    Senior Member Hass828's Avatar
    Join Date
    Dec 2007
    Location
    okie, lake Texoma
    Posts
    6,275

    Default

    Quote Originally Posted by blurred vision View Post
    Forged non ceramic,,,,MSD 6AL MSD dist locked at 28 degrees,,Blower plugs heat range i dont know ....gapped at about .26....Top RPM around 5800..
    engine temp around 120 degrees....Intercooler.... use the boat going up river passing a few peeps...long runs averge about 5000 RPM,,,not wide open.....
    If your on pump gas then thats about it, you might get a degree or so out of it but you better watch the plugs because it will start to show signs of detonation if much above were your at. Better off to keep it on the safe side just incase you get a tank of fuel thats not as good as usual.
    "if we keep doing it the same way we always do..we will always get the same results"
    H8-2-W8
    [email protected] first pass

  10. #8
    i'm back!! 1QuickCP's Avatar
    Join Date
    Jun 2009
    Location
    Montana
    Posts
    687

    Default

    Ya pump gas is horrible and gettin worse. The motor will be happy at 32 or so if you have decent fuel. Id chuck some race gas in there set it at 32 and see how it runs, then you can decide if better fuel is worth it or not.

  11. #9
    gn7
    gn7 is offline
    Senior Member gn7's Avatar
    Join Date
    Jan 2008
    Posts
    25,975

    Default

    and not one person asked about head material. NAH the ain't big thing



    100% free webcam site! | Awesome chicks and it is absolutely free! | Watch free live sex cam - easy as 1-2-3

  12. #10
    BTC cardcarrying member SuperSoaker's Avatar
    Join Date
    Dec 2007
    Location
    MD
    Posts
    1,942

    Default

    not trying to hijack tread

    Im doing my first blower motor. looking for safe timming as well

    468 bbc 8 1/2 to 1 ????? maybe a little less
    flat top with 1 valve relief .020 in hole
    .041 head gasket MLS
    119 cc chambers
    iron merlin 320 (grumpy)
    671 w/ 2 750 holleys ( i think no #)
    35 top
    34 bottom
    super chiller
    cam solid roller (rest unknown)
    92/93 oct.
    NGK # 8 plugs
    Boost ?????? Im thinking 2/3
    Bassett OT w/ water inj.

    im thinking 30/32
    Last edited by SuperSoaker; 07-22-2010 at 08:52 PM.

  13. #11
    gn7
    gn7 is offline
    Senior Member gn7's Avatar
    Join Date
    Jan 2008
    Posts
    25,975

    Default

    Quote Originally Posted by SuperSoaker View Post
    not trying to hijack tread

    Im doing my first blower motor. looking for safe timming as well

    468 bbc 8 1/2 to 1 ????? maybe a little less
    flat top with 1 valve relief .020 in hole
    .041 head gasket MLS
    119 cc chambers
    iron merlin 320 (grumpy)
    671 w/ 2 750 holleys ( i think no #)
    35 top
    34 bottom
    super chiller
    cam solid roller (rest unknown)
    92/93 oct.
    NGK # 8 plugs
    Boost ?????? Im thinking 2/3
    Bassett OT w/ water inj.

    im thinking 30/32
    You'll be fine at 32. There is not much to be gained after 32. i have messed with the timing on blower deals with different boosts and different fuel oct. And never found much in the timing after 32. Raise the boost, and/or the compression and now you need better fuel, but timing still seems to be the same. If the compression low enough, and the heads are alumn., rather than add timing, you'll find more by adding boost. You would have to spend alot of time in a unbossted condition to justifiy adding timing. And then you may need to add a MSD BTM to take timing out when it goes to boost. IMO



    100% free webcam site! | Awesome chicks and it is absolutely free! | Watch free live sex cam - easy as 1-2-3

  14. #12
    BTC cardcarrying member SuperSoaker's Avatar
    Join Date
    Dec 2007
    Location
    MD
    Posts
    1,942

    Default

    Quote Originally Posted by gn7 View Post
    You'll be fine at 32. There is not much to be gained after 32. i have messed with the timing on blower deals with different boosts and different fuel oct. And never found much in the timing after 32. Raise the boost, and/or the compression and now you need better fuel, but timing still seems to be the same. If the compression low enough, and the heads are alumn., rather than add timing, you'll find more by adding boost. You would have to spend alot of time in a unbossted condition to justifiy adding timing. And then you may need to add a MSD BTM to take timing out when it goes to boost. IMO


    cool thanks

  15. #13
    Senior Member blurred vision's Avatar
    Join Date
    Apr 2009
    Posts
    240

    Default

    Thanks guys....Heads are aluminum.......bumped the timming to 32....didnt help alot maybe 400 more rpm...ran a little rough at idle,,,,hard to put in gear....back to a safe 28.....

  16. #14
    What the Hell is That? 72Hondo's Avatar
    Join Date
    Apr 2008
    Location
    Denton, TX
    Posts
    1,633

    Default timing

    Thats one thing that worries me is timing. I am at 34. Seems to be a little higher than most.

    SBC, 177SC, 7.1 comp, Iron heads, solid cam, Forged bottom, Running 100LL, only running 4 lbs of boost. EGT reads 750-780C at WOT. I am currently running #7 plugs but am going to switch to a #8 or 9. The timing just seems a little high compared to the rest of the blown deals.
    Quote Originally Posted by Kyle View Post
    Log off and go float, hang in the party coves, Show and shine on the trailer, fill up the boat, wax it, v-drive, jet, outdrive, and if you got a canoe and your reading this, you sir, need to phucking upgrade.

+ Reply to Thread
Page 1 of 2 1 2 LastLast

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Please select your insurance company (Optional)

Log-in

Digg This Thread

Posting Permissions

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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95