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Re: Balancing Question
[Re: 397STROKER]
#478186
09/24/09 11:27 AM
09/24/09 11:27 AM
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Joined: Feb 2006
Posts: 1,949
land of 10,000______'s
BDS871Cuda
top fuel
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top fuel
Joined: Feb 2006
Posts: 1,949
land of 10,000______'s
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Almost a 1/2 an ounce. Better call Dram or
somebody in your area. Street motor no big deal.
Racing it to 6500, could be a big deal.
Snap your neck, mega G-force launch, is all I want!
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Re: Balancing Question
[Re: 397STROKER]
#478187
09/24/09 07:28 PM
09/24/09 07:28 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
I changed pistons and they are a couple grams lighter but the rings are heaver due to going from 1.5 mm to 1/16. Anyway I figure that I am under balanced by 11.1 grams. Should I have the crank rebalanced? This is a stroked SB that will see dual duty, street/strip. Should never see more than 6500 rpms.
are you sure it's underba;anced and not overbalanced?
what was the weight of the old piston and rings vs. the new ones?
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Re: Balancing Question
[Re: 397STROKER]
#478190
09/24/09 10:14 PM
09/24/09 10:14 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
The current bobweight is 1846.7 and the new would be 1857.8, which mean I am under balanced.
that's correct. if it were mine, or a customers, i'd balance it. 11 grams is not a lot but, two things come to mind. it's a lot cheaper to do it now than to have to do it afterward. also, how good was the last balance job. i bet when they spin it this time it shows something other than that 11 grams you think it's off by now.
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