firing order - Team Camaro Tech
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post #1 of 5 (permalink) Old Dec 11th, 16, 09:23 AM Thread Starter
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kevin
 
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firing order

watched ENGINE POWER this morning where they built an engine 580?something . their bump stick had 4 and 7 firing order reversed why?
they also used a belt driven distributor . is there that much advantage doing this?
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post #2 of 5 (permalink) Old Dec 11th, 16, 11:40 AM
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Re: firing order

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watched ENGINE POWER this morning where they built an engine 580?something . their bump stick had 4 and 7 firing order reversed why?
they also used a belt driven distributor . is there that much advantage doing this?
The 4/7 swap is supposed to smooth out the power a bit. The cam in my motor has a 4/7 swap. Belt driven distributors are typically used if you have firewall clearance problems. They have to be used with a crank trigger. A crank trigger is more precise than having the pick up in the distributor.

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post #3 of 5 (permalink) Old Dec 12th, 16, 12:07 AM
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Jim
 
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Re: firing order

Belt drive distributor is more precise than a rear shaft driven distributor, overkill for the street but some wankers do run them
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post #4 of 5 (permalink) Old Dec 12th, 16, 06:18 AM
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Re: firing order

Because all the cool kids are doing it.





A waste on the street, I agree.

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post #5 of 5 (permalink) Old Dec 12th, 16, 07:56 PM
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Re: firing order

I read somewhere the 4/7 swap and 4/7-3/2 swap were meant to help crankshaft reliability in endurance racing if I recall correctly.

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