How to adjust timing
Fleet Owner
Joined: Oct 2005
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From: Kentucky
Posting Guru
Joined: Sep 2008
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Posting Guru
Joined: Sep 2008
Posts: 2,379
Likes: 2
all you can do on these vehicles is set the base timing, that is all the computer expects. Once you plug the SPOUT in, you don't have control over the timing and you need the SPOUT in for normal driving conditions.
Fleet Owner
Joined: Oct 2005
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From: Kentucky
The simple answer is leave the SPOUT plug out.
Next question: What are you trying to accomplish? Is there an issue you are trying to resolve?
Lead Driver
Joined: Feb 2013
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From: Roseville, MN
But just like old distributors, the base timing still needs to be set correctly, so that's what you're doing.
Back in the old days you'd need to disconnect the vacuum advance and keep the engine at a low speed to not get into the centrifugal advance in order to set the base timing. These engines are the exact same, except that you pull the SPOUT connector rather than pull a vacuum line to disable the vacuum advance.
Fleet Owner
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
The computer bases the timing curve on assuming the base timing is at 10 degrees BTDC. By manually advancing or retarding the base timing you are shifting the entire curve.
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New User
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There no issue and I'm trying to accomplish better throttle response more low in torque Thats my big goal is to get a lot more low end torque out of there engine
Posting Guru
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Nothing you can do will get you any noticable gains. The computer controls spark and fuel. If you want more power, you need to add more air.
New User
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The problem with the blower in this truck won't just be street I will be taking it off-road and in mud a blower would just get ruined
Freshman User
Joined: Sep 2013
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From: San Antonio, TX
Fleet Owner
Joined: Oct 2005
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From: Kentucky
Posting Guru
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Getting mud in the blower means you have mud in your air intake. The blower is not your problem, mud in the intake is. Remove the blower from the equation and you still have mud in your intake, which is a problem.