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Any one know a source for zero gap rings for geo pistons?; Anyone make a zero gap ring for geo pistons? Custom?
Topic Started: Mar 5 2013, 07:20 PM (1,456 Views)
nwgeo


:popcorn
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crispycritter
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Why do you need a zero gap ring? By the way, it's usually ZGS ie zero gap second (ring). Are you doing a forced induction motor?
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metromizer


Total Seal offers a gapless second ring set, part number X8024

http://www.totalseal.com/SearchByApplication.aspx

search under Chevrolet, then Geo
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Bjetmech
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Geo Glenn has a topic of recomended parts.

Topic here. :type

http://geometroforum.com/single/?p=663238&t=4846687

It says order 1.3 piston rings. :news :news

link here

http://www.ebay.com/itm/250743961619?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

:rocker :rocker :spaz
Edited by Bjetmech, Mar 6 2013, 02:21 AM.
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nerys
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Grr

because an xfi has only 2 rings and they are gapless for this reason. reduces drag. I am also interested in sourcing some proper xfi rings.
Edited by nerys, Mar 6 2013, 10:54 AM.
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PTA2PTB
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I'm totally awesome! I swear.

What do you suppose the effect would be if you mounted 2-sets of gapless rings, on a set of non-XFI type pistons? Has anyone ever tried it? I'm guessing it would reduce your blow-by gasses, at least for a while, but by the mere fact that it's not a common practice, there MUST be a real downside to it. It could cause issues if/when you did get some blow-by gasses trapped between the two sets of rings.
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nwgeo


No not the 2 ring xfi issue although that is what my daily driver is.

No forced induction motor.

I have read up on rings and some engine builders actually calculate the exspantion of the ring and hand file the ends of the rings so there is a "gapless" contact. This provides better compression, more incremental amount to the piston.

I may be not using the right terminology. GG says 4 cylnder evergreens give the closest tolerence gap. I may go that way as I don't know of any "gapless" for our pistons, but I have just begun to look for these.

I checked total seal but those just look like a standard set.
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91 ragtop
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PTA2PTB
Mar 6 2013, 12:46 PM
What do you suppose the effect would be if you mounted 2-sets of gapless rings, on a set of non-XFI type pistons? Has anyone ever tried it? I'm guessing it would reduce your blow-by gasses, at least for a while, but by the mere fact that it's not a common practice, there MUST be a real downside to it. It could cause issues if/when you did get some blow-by gasses trapped between the two sets of rings.
The gapless rings are hard to find and if you want to use them in both compression ring lands you will need to find two different sizes since the top ring is not the same as the 2nd ring.


Ken.......
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crispycritter
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nwgeo
Mar 6 2013, 01:04 PM
No not the 2 ring xfi issue although that is what my daily driver is.

No forced induction motor.

I have read up on rings and some engine builders actually calculate the exspantion of the ring and hand file the ends of the rings so there is a "gapless" contact. This provides better compression, more incremental amount to the piston.

I may be not using the right terminology. GG says 4 cylnder evergreens give the closest tolerence gap. I may go that way as I don't know of any "gapless" for our pistons, but I have just begun to look for these.

I checked total seal but those just look like a standard set.
Check out bwepistonrings.com, they say they can make rings from 2 inches up and are the originators of ZGS rings
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nerys
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Grr

maybe we can do a group buy to bring the price down low enough.
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Rang-a-Stang
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Schmuck

nerys
Mar 7 2013, 10:58 PM
maybe we can do a group buy to bring the price down low enough.
I'd buy a set if it was reasonable.
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PTA2PTB
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I'm totally awesome! I swear.

91 ragtop
Mar 6 2013, 08:25 PM
PTA2PTB
Mar 6 2013, 12:46 PM
What do you suppose the effect would be if you mounted 2-sets of gapless rings, on a set of non-XFI type pistons? Has anyone ever tried it? I'm guessing it would reduce your blow-by gasses, at least for a while, but by the mere fact that it's not a common practice, there MUST be a real downside to it. It could cause issues if/when you did get some blow-by gasses trapped between the two sets of rings.
The gapless rings are hard to find and if you want to use them in both compression ring lands you will need to find two different sizes since the top ring is not the same as the 2nd ring.


Ken.......
Hmmph? I didn't realize they were different sizes. Good info. Thanks. :thumb
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PTA2PTB
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I'm totally awesome! I swear.

nerys
Mar 7 2013, 10:58 PM
maybe we can do a group buy to bring the price down low enough.
It'd be even better if we could get some good quality forged pistons, to go with them. And a group buy on some inconel valves would be pretty sweet, too.
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Deleted User
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It's all good trying to find standard size XFI pistons and rings, even if someone has to make them.

However, consider that your cylinder liners will most likely need to be replaced to go standard size. $100 per hole.

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Coche Blanco
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Geo Glenn
Mar 8 2013, 10:43 PM
It's all good trying to find standard size XFI pistons and rings, even if someone has to make them.

However, consider that your cylinder liners will most likely need to be replaced to go standard size. $100 per hole.

:gp

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