Re: Ring Gap
[Re: 64physhy]
#524564
11/12/09 11:40 PM
11/12/09 11:40 PM
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Anonymous
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Anonymous
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you read the "note" wrong. please read that section again.
for every .001 of overbore, it will add approximately .0035 of ring gap.
in other words, right now the gap is .015" if you were to hone .001 out of the bore right now, it would make the gap wider by approximately .0035
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Re: Ring Gap
[Re: 64physhy]
#524567
11/13/09 01:58 AM
11/13/09 01:58 AM
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Anonymous
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Anonymous
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Quote:
Ok, so in other words, it's saying that if you use rings that were gapped for a 4.040 bore and they had a .015" gap, then those same rings would have a .0185 gap if the bore was 4.041. Is that right?
So .015 is correct for a 4.060 bore, if the gap is supposed to be .0035 X Bore.?
yes, that is correct, for both questions. 
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Re: Ring Gap
#524568
11/13/09 04:37 AM
11/13/09 04:37 AM
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Joined: Oct 2003
Posts: 7,506
Az
Crizila
master
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master
Joined: Oct 2003
Posts: 7,506
Az
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Just remember, one little error such as a belt comming off, and you might have wished you gaped the rings on the large side of the spec.
Fastest 300
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Re: Ring Gap
[Re: Cab_Burge]
#524569
11/14/09 03:42 PM
11/14/09 03:42 PM
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Joined: Feb 2009
Posts: 154
Escondido, CA
64physhy
OP
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OP
member
Joined: Feb 2009
Posts: 154
Escondido, CA
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Quote:
Are the Total Seal second rings there gapless or thier standard type ring? What did the machine shop set the top ring gap at? If I was building that motor for street or street and strip i would probally set the top ring gap at .018 to .020 (depending on the fuel used and application, looser for street on pump gas)and the second ring gap at .020 to .022. 
It's their standard file-fit rings. Using the formula, the gap comes out to .015, which is what the shop set them at, but I'm thinking I'd rather have them at about .018. .015 is a tiny gap. I'd have to double check, but I think bot top and second have the same ring gap factor.
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Re: Ring Gap
[Re: 64physhy]
#524570
11/14/09 05:15 PM
11/14/09 05:15 PM
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Anonymous
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Anonymous
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Quote:
Quote:
Are the Total Seal second rings there gapless or thier standard type ring? What did the machine shop set the top ring gap at? If I was building that motor for street or street and strip i would probally set the top ring gap at .018 to .020 (depending on the fuel used and application, looser for street on pump gas)and the second ring gap at .020 to .022.
It's their standard file-fit rings. Using the formula, the gap comes out to .015, which is what the shop set them at, but I'm thinking I'd rather have them at about .018. .015 is a tiny gap. I'd have to double check, but I think bot top and second have the same ring gap factor.
the top ring should be gapped at .0045 per inch of bore for a naturally aspirated engine with no power adders.
the 2nd gap doesn't "need" to be as wide since it see's considerably less heat from combustion and therefore will not expand as much.
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Re: Ring Gap
[Re: todd440]
#524572
11/14/09 05:47 PM
11/14/09 05:47 PM
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Joined: Dec 2008
Posts: 1,200
UK
602heavy
pro stock
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pro stock
Joined: Dec 2008
Posts: 1,200
UK
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Gap the second ring using the same formula as the top ie: bore x .005" , you're engine won't mind a little more end gap ,plus the top ring will thank you for it.
Last edited by 602heavy; 11/14/09 05:50 PM.
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