Is there a preferred piston ring?
#1
Three Wheelin'
Thread Starter
Is there a preferred piston ring?
Is there a preferred piston ring to use? Tried the search button and some mention using Total Seal and some use the 951 rings with the chrome top ring. Refreshing the 89GT engine that hasn't run since 95. Only has 50K on it but feel it best to replace the rings while everything is apart.
#4
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951 rings is what we sell the most of and reasonably priced at $275 a set of 8
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Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission? George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission? George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
#5
Hi,
Just for the sake of knowledge....
Are there any significant differences between the 951 rings and the original 928 rings?
Thanks ! ! !
Just for the sake of knowledge....
Are there any significant differences between the 951 rings and the original 928 rings?
Thanks ! ! !
#6
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George
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#7
Former Vendor
The factory 928 rings have a cast upper ring. If you spread it too far, it will snap.
The 951 factory upper ring is not cast...you can spread it and it just bends.
I assume they did this because of the increased cylinder pressure of the 951 combined with the potential for detonation, which can be tough on the top ring.
I've never tried to break a new Goetze 951 top ring to see if the replacement rings are the same as factory rings....
The 951 factory upper ring is not cast...you can spread it and it just bends.
I assume they did this because of the increased cylinder pressure of the 951 combined with the potential for detonation, which can be tough on the top ring.
I've never tried to break a new Goetze 951 top ring to see if the replacement rings are the same as factory rings....
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#8
Thank you, sir !
Have a great day,
Have a great day,
#9
Rennlist Member
Replace them with stock Rreplacment Goetze. one of the reasons is not the milelage, but the TIME. they are probably just find , but engines with low compression have rings that look fine too.
its a wyit type of thing in my book. Then you really have a new engine
its a wyit type of thing in my book. Then you really have a new engine
#10
Official Bay Area Patriot
Fuse 24 Assassin
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Fuse 24 Assassin
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I remember a while back buying a set of Deves piston rings for a 944 build. Although this is semi-OT,there is no comparison of any aftermarket ring set to the original ones put out by Goetze.
A little 101 education for anyone rebuilding any type of watercooled Porsche engine.
A little 101 education for anyone rebuilding any type of watercooled Porsche engine.
#11
Rennlist Member
yes... re-ring with porsche replacement rings and you will be very happy.... however,let the shop install the rings unless you have done it before. (they can break, unless you use the experienced technique)
#13
Three Wheelin'
Thread Starter
My curiosity was piqued after looking at the Lindsay Racing (944) website. They list several of their own ringsets, one with a chrome top ring and their super deluxe set that includes both a chrome top and second ring. They aren't cheap and I was curious if the chrome ring was an "improvement" over our cast rings.
#14
Rennlist Member
My curiosity was piqued after looking at the Lindsay Racing (944) website. They list several of their own ringsets, one with a chrome top ring and their super deluxe set that includes both a chrome top and second ring. They aren't cheap and I was curious if the chrome ring was an "improvement" over our cast rings.
i dont know of the details of how a chrome ring works with a alusil block, but why stray from what works.... stay stock and you wont have to report back that your engine grenaded do to this ring change. it maybe better, but i think only doc brown or a couple others could validate its use in a 928 engine.