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Roadrunner

  • Karma: +13/-0
Big Block Chevy guys. What is your timing set at?
« on: March 27, 2014, 06:48:57 PM »
Hey guys, just wondering what your ignition timing sweet spot is.


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crewchief22

  • Karma: +66/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #1 on: March 27, 2014, 07:28:16 PM »
36 total.
  • Boat #1: '77 Hondo Pantera GT Jet
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"Racing is life!  Anything that happens before or after, is just waiting"    Steve McQueen

The problem with America is stupidity. I'm not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself?

riverrat7777

  • Karma: +0/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #2 on: March 27, 2014, 07:32:56 PM »
32 at 2500 rpms with no vac adv
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uncleBOBBY

  • Karma: +2/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #3 on: March 27, 2014, 07:50:01 PM »

32 at 2500 rpms with no vac adv
X2


SRC 🚤💨
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Bigblockchevy

  • Karma: +0/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #4 on: March 27, 2014, 07:50:24 PM »
32 at 2500


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Riverlife_

  • Karma: +3/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #5 on: March 27, 2014, 08:04:06 PM »
36 total.


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GT Jets

  • Karma: +192/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #6 on: March 27, 2014, 08:22:26 PM »
38*BTDC and 15 degrees of advance built into the distributor, all in by 2000 RPM.

GT
  • Boat #1: 1992 Carrera 20.5 Elite (I/O bitches)
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If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

jyeager

  • Karma: +62/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #7 on: March 27, 2014, 08:59:06 PM »
36*  :thumbup: :thumbup: :beer: :beer:
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who yo daddy

  • Karma: +0/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #8 on: March 27, 2014, 09:20:53 PM »
Yeah that sounds good whatever they said is good I'm at 34 total 👍🚤💨


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riefer jet

  • Karma: +0/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #9 on: March 27, 2014, 09:37:54 PM »
37 max
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Horizonjet

  • Karma: +0/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #10 on: March 27, 2014, 10:08:50 PM »
36 here also... :thumbup:
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ka0tyk

  • Karma: +30/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #11 on: March 27, 2014, 10:29:39 PM »
36 here and it comes all in at mid 2500s. Vacuum advance locked out. (Don't just unplug the vacuum line)
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Horizonjet

  • Karma: +0/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #12 on: March 27, 2014, 10:40:12 PM »
36 here and it comes all in at mid 2500s. Vacuum advance locked out. (Don't just unplug the vacuum line)

Oh ya, Lock out vacume advance too  ;D
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Roadrunner

  • Karma: +13/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #13 on: March 27, 2014, 11:03:15 PM »
You guys are great! Thanks for the quick reply  :thumbup: I was too conservative on my initial setting. I'm the paranoid type. I was worried that if I had it too advanced, I wouldn't hear the engine pinging under load. I'll give 36* a try. Thank you everyone!
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Horizonjet

  • Karma: +0/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #14 on: March 28, 2014, 12:02:40 PM »
Drive it, advance timing, repeat over til it starts pinging them slightly go back then your done :)
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K-034

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BIG JOHNSON

  • Karma: +1/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #16 on: March 28, 2014, 01:45:00 PM »
Drive it, advance timing, repeat over til it starts pinging them slightly go back then your done :)

X2, my timing was retarded so bad when I bought it, it would barely start. Kept twisting the dist on Elsinore until it was tits.
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beerjet

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i dont but im all for stuffin shit in her ass to make her go away :-*

mash on it

  • Karma: +29/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #18 on: March 29, 2014, 10:24:16 AM »
For those that run at lake Elsinore at 75* and 1265' elevation, the same timing at the river (~450', & 115*) MAY be too much...

I run 36-38* in the spring, but when the temps get above 100, I back it down to 34*.
From Parker (350' elev.) to Mead (1100-1150' elev.) makes a small difference, but that's where I boat.

One bad piston is all it takes to ruin your weekend  :(

Dan'l
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icecreaman

  • Karma: +23/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #19 on: March 29, 2014, 08:46:27 PM »
Wow, not one person even asked what your engine basics are.  What's the motor compression, type of heads, cam, fuel.... nothing....... just 36* and run it.  36* may be right, or it could be just enough to beat your motor apart.  Hearing a pinging motor in a jet boat isn't the easiest thing, not everyone's hearing is that in tune.  My suggestion would be to start conservative around 30-32 and learn how to read your spark plugs.  That way you're not guessing. JMHO, Greg.
  http://members.uia.net/pkelley2/sparkplugreading.html
http://www.dansmc.com/Spark_Plugs/Spark_Plugs_catalog.html
« Last Edit: March 29, 2014, 09:02:27 PM by icecreaman »
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crewchief22

  • Karma: +66/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #20 on: March 29, 2014, 08:56:12 PM »
Wow, not one person even asked what your engine basics are.  What's the motor compression, type of heads, cam, fuel.... nothing....... just 36* and run it.  36* may be right, or it could be just enough to beat your motor apart.  Hearing a pinging motor in a jet boat isn't the easiest thing, not everyone's hearing is that in tune.  My suggestion would be to start conservative around 30-32 and learn how to read your spark plugs.  That way you're not guessing. JMHO, Greg.
  http://members.uia.net/pkelley2/sparkplugreading.html
http://www.dansmc.com/Spark_Plugs/Spark_Plugs_catalog.html
http://www.dansmc.com/Spark_Plugs/Spark_Plugs_catalog.html

Come on Greg... He didn't ask for a recommendation, he asked what is our timing set at. 

You know the drill... if the customer asks for vanilla, you don't tell him how to make ice cream.  ;)

  • Boat #1: '77 Hondo Pantera GT Jet
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"Racing is life!  Anything that happens before or after, is just waiting"    Steve McQueen

The problem with America is stupidity. I'm not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself?

Hallett Dave

  • Karma: +13/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #21 on: March 29, 2014, 10:47:40 PM »
Wow, not one person even asked what your engine basics are.  What's the motor compression, type of heads, cam, fuel.... nothing....... just 36* and run it.  36* may be right, or it could be just enough to beat your motor apart.  Hearing a pinging motor in a jet boat isn't the easiest thing, not everyone's hearing is that in tune.  My suggestion would be to start conservative around 30-32 and learn how to read your spark plugs.  That way you're not guessing. JMHO, Greg.
  http://members.uia.net/pkelley2/sparkplugreading.html
http://www.dansmc.com/Spark_Plugs/Spark_Plugs_catalog.html

Good call Greg.
Keith,
I'll take a Root Beer Float please. :)
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beerjet

  • Karma: +81/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #22 on: March 29, 2014, 11:04:47 PM »
Wow, not one person even asked what your engine basics are.  What's the motor compression, type of heads, cam, fuel.... nothing....... just 36* and run it.  36* may be right, or it could be just enough to beat your motor apart.  Hearing a pinging motor in a jet boat isn't the easiest thing, not everyone's hearing is that in tune.  My suggestion would be to start conservative around 30-32 and learn how to read your spark plugs.  That way you're not guessing. JMHO, Greg.
  http://members.uia.net/pkelley2/sparkplugreading.html
http://www.dansmc.com/Spark_Plugs/Spark_Plugs_catalog.html
So you're saying a person who's hearing that may not be as in tune as some others should jump into plug reading?
So now he'll know what plugs are supposed to look like but still won't know how to get them there.
I don't think there is a whole lot left on the table between 32 and 36 degrees in a stock to mild marine application. 
Not to mention, he can clearly see what each one of us owns/drives and can probably follow accordingly...
I know I would be duplicating a big hp tune for my stock cruiser.

-beerjet-

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beerjet

  • Karma: +81/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #23 on: March 29, 2014, 11:04:48 PM »
Wow, not one person even asked what your engine basics are.  What's the motor compression, type of heads, cam, fuel.... nothing....... just 36* and run it.  36* may be right, or it could be just enough to beat your motor apart.  Hearing a pinging motor in a jet boat isn't the easiest thing, not everyone's hearing is that in tune.  My suggestion would be to start conservative around 30-32 and learn how to read your spark plugs.  That way you're not guessing. JMHO, Greg.
  http://members.uia.net/pkelley2/sparkplugreading.html
http://www.dansmc.com/Spark_Plugs/Spark_Plugs_catalog.html
So you're saying a person who's hearing that may not be as in tune as some others should jump into plug reading?
So now he'll know what plugs are supposed to look like but still won't know how to get them there.
I don't think there is a whole lot left on the table between 32 and 36 degrees in a stock to mild marine application. 
Not to mention, he can clearly see what each one of us owns/drives and can probably follow accordingly...
I know I would be duplicating a big hp tune for my stock cruiser.

-beerjet-

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beerjet

  • Karma: +81/-0
Re: Big Block Chevy guys. What is your timing set at?
« Reply #24 on: March 29, 2014, 11:06:06 PM »
Good call Greg.
Keith,
I'll take a Root Beer Float please. :)
Yeah, minus the "root" and the "float".... right Dave!

-beerjet-

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i dont but im all for stuffin shit in her ass to make her go away :-*

 


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