Re: .005" oversize rings?
[Re: CokeBottleKid]
#3164737
08/01/23 05:59 AM
08/01/23 05:59 AM
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Joined: Jan 2003
Posts: 9,999
Frostbitefalls MN (Rocky&Bullw...
gregsdart
master
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master
Joined: Jan 2003
Posts: 9,999
Frostbitefalls MN (Rocky&Bullw...
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Yes. All good performance builds will have the rings custom file fit. You need a tool you can buy at Jegs, etc, to effectively file the rings. Google it. File fitting piston rings. It is worth the effort. The top and second rings are PROBABLY the only ones needing a file fit. The oil rails may already have clearance. The top ring is critical to beat outcome. The second, a little less critical
Last edited by gregsdart; 08/01/23 06:04 AM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: .005" oversize rings?
[Re: CokeBottleKid]
#3164771
08/01/23 09:17 AM
08/01/23 09:17 AM
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Joined: Mar 2011
Posts: 3,076
Michigan
A727Tflite
master
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master
Joined: Mar 2011
Posts: 3,076
Michigan
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So... I'm building this motor with .030 over pistons (4.03" bore)... I bought the rotating assembly used off market place for a decent deal. Got it all machined and I'm ready to start file fitting these Total seal rings I got in the kit... put the first top ring in the bore and the sucker is butt up against itself hard.... only then for whatever reason I checked the part number to find they're .035" oversize... I asked my machinist what the deal was, did this guy [censored] up or did he do it for a reason? Machinist says "Because that's the trend. It's gay"  . He didn't really offer an explanation for it tho, other that it became a thing about 20 years ago. Has anyone else heard of this? Is this peoples attempt to fine tune ring tension? I'm not really looking forward to grinding the [censored] out of all 4 rings for each cylinder..... What machine shop did you take it to?
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Re: .005" oversize rings?
[Re: A727Tflite]
#3164775
08/01/23 09:32 AM
08/01/23 09:32 AM
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Joined: Jan 2012
Posts: 2,646
Stuttgart, Arkansas
rickseeman
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master
Joined: Jan 2012
Posts: 2,646
Stuttgart, Arkansas
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You didn't state if this build is a bracket racing engine or for your grandmother. If it is a high performance build, he sold you the right stuff. If they weren't 5 over there wouldn't be anything to file fit. You normally won't be filing the oil ring, just check a few. It will take you an hour or so with one of those hand crank ring files to do the top 2 rings. This plan is supposed to be mo better. You can still buy rings for a stated bore size and the gap will fit into SAE specs but that is not considered a proper high performance build.
2011 Drag Pak Challenger
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Re: .005" oversize rings?
[Re: A727Tflite]
#3164918
08/01/23 06:50 PM
08/01/23 06:50 PM
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Joined: Jan 2003
Posts: 8,180
Detroit, MI
CokeBottleKid
OP
master
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OP
master
Joined: Jan 2003
Posts: 8,180
Detroit, MI
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So... I'm building this motor with .030 over pistons (4.03" bore)... I bought the rotating assembly used off market place for a decent deal. Got it all machined and I'm ready to start file fitting these Total seal rings I got in the kit... put the first top ring in the bore and the sucker is butt up against itself hard.... only then for whatever reason I checked the part number to find they're .035" oversize... I asked my machinist what the deal was, did this guy [censored] up or did he do it for a reason? Machinist says "Because that's the trend. It's gay" . He didn't really offer an explanation for it tho, other that it became a thing about 20 years ago. Has anyone else heard of this? Is this peoples attempt to fine tune ring tension? I'm not really looking forward to grinding the [censored] out of all 4 rings for each cylinder..... What machine shop did you take it to? Dizusters friend
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Re: .005" oversize rings?
[Re: CokeBottleKid]
#3164935
08/01/23 07:45 PM
08/01/23 07:45 PM
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Joined: Mar 2011
Posts: 3,076
Michigan
A727Tflite
master
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master
Joined: Mar 2011
Posts: 3,076
Michigan
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So... I'm building this motor with .030 over pistons (4.03" bore)... I bought the rotating assembly used off market place for a decent deal. Got it all machined and I'm ready to start file fitting these Total seal rings I got in the kit... put the first top ring in the bore and the sucker is butt up against itself hard.... only then for whatever reason I checked the part number to find they're .035" oversize... I asked my machinist what the deal was, did this guy [censored] up or did he do it for a reason? Machinist says "Because that's the trend. It's gay" . He didn't really offer an explanation for it tho, other that it became a thing about 20 years ago. Has anyone else heard of this? Is this peoples attempt to fine tune ring tension? I'm not really looking forward to grinding the [censored] out of all 4 rings for each cylinder..... What machine shop did you take it to? Dizusters friend I assume it’s Dave, Dave does first class work. I asked because you stated he said it started about 20 years ago. It’s been a thing for much longer than that. I remember filing rings in the 70’s, when I bought my first rotary filer from Sealed Power. Before I bought it we used a file.
Last edited by Transman; 08/01/23 07:46 PM.
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Re: .005" oversize rings?
[Re: A727Tflite]
#3164997
08/02/23 01:29 AM
08/02/23 01:29 AM
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Joined: Jan 2003
Posts: 8,180
Detroit, MI
CokeBottleKid
OP
master
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OP
master
Joined: Jan 2003
Posts: 8,180
Detroit, MI
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So... I'm building this motor with .030 over pistons (4.03" bore)... I bought the rotating assembly used off market place for a decent deal. Got it all machined and I'm ready to start file fitting these Total seal rings I got in the kit... put the first top ring in the bore and the sucker is butt up against itself hard.... only then for whatever reason I checked the part number to find they're .035" oversize... I asked my machinist what the deal was, did this guy [censored] up or did he do it for a reason? Machinist says "Because that's the trend. It's gay" . He didn't really offer an explanation for it tho, other that it became a thing about 20 years ago. Has anyone else heard of this? Is this peoples attempt to fine tune ring tension? I'm not really looking forward to grinding the [censored] out of all 4 rings for each cylinder..... What machine shop did you take it to? Dizusters friend I assume it’s Dave, Dave does first class work. I asked because you stated he said it started about 20 years ago. It’s been a thing for much longer than that. I remember filing rings in the 70’s, when I bought my first rotary filer from Sealed Power. Before I bought it we used a file. Ya Dave's the best. I've always filed mine by hand, but mine have always been drop in sets that needed no more than .005" removed... You should consider changing your nick... means something entirely different these days... :P
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Re: .005" oversize rings?
[Re: Cab_Burge]
#3165116
08/02/23 02:22 PM
08/02/23 02:22 PM
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Joined: Mar 2011
Posts: 3,076
Michigan
A727Tflite
master
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master
Joined: Mar 2011
Posts: 3,076
Michigan
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X
Last edited by A727Transman; 08/03/23 09:28 AM.
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It was red. 
