timing issue April 18, 2023 05:36AM
Hi there, so we have a twd pulling truck. and we are struggling to find what degree the timing should be set at. the motor is a 540 big block chevy with a 1471 supercharger. any range at which it should be set at would be great!
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Re: timing issue April 18, 2023 06:59AM
28 - 36 degrees advance. 36 being max
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Re: timing issue April 18, 2023 08:03AM
What ignition system are you using? That matters a lot.
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Re: timing issue April 18, 2023 11:06AM
What heads are on it ?
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Re: timing issue April 18, 2023 05:38PM
It's a dump truck engine with a 14-71 blower.
It's going to blow up soon.
PPM has the best advice.
HEI ignition, Mallory Mag, MSD 12, MSD 44, doesn't matter.
You are hitting a whine glass with a sledge hammer.
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Re: timing issue April 20, 2023 04:21AM
has the 14 degree heads
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Re: timing issue April 20, 2023 04:15AM
msd44
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Re: timing issue April 18, 2023 06:34PM
First, it is recommended that you check your engine owner's manual for the manufacturer's recommendations regarding the ignition timing setting. This is usually stated in degrees to top dead center (BVM). Second, optimal ignition timing can depend on many factors, such as type of fuel, degree of load, altitude, and others. Because of this, I would recommend contacting professionals who can perform an engine diagnosis and determine the best ignition timing for your particular case.



Edited 2 time(s). Last edit at 04/18/2023 06:35PM by LeodoraSwerdloff.
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Re: timing issue April 19, 2023 08:06AM
Quote
LeodoraSwerdloff
First, it is recommended that you check your engine owner's manual for the manufacturer's recommendations regarding the ignition timing setting. This is usually stated in degrees to top dead center (BVM). Second, optimal ignition timing can depend on many factors, such as type of fuel, degree of load, altitude, and others. Because of this, I would recommend contacting professionals who can perform an engine diagnosis and determine the best ignition timing for your particular case.

Spinning

Now - seriously:
The "perfect" timing depends on many factors like: RPM range (= final ratio of your truck / cam / heads ), compression ratio, type of ignition, ...
Less is always safer.


Floating Finish - the German Tractor Pulling Web Show and EU Live Streams: [www.youtube.com]



Edited 2 time(s). Last edit at 04/19/2023 08:08AM by Sascha.
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