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View Poll Results: Have you heard or had of Manley piston ring early mile fails | |||
YES | 2 | 33.33% | |
No | 4 | 66.67% | |
Voters: 6. You may not vote on this poll |
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07-26-2021, 08:38 AM | #1 |
Scooby Newbie
Member#: 379271
Join Date: Jan 2014
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manley platinum piston rings too soft and wear out too quick ?
Hi all so first question to everyone.....was talking to my machine shop and he is scratching his head why Manley platinum pistons 93mm are asking for a 280grit finish on the hone ?
i told him i don't know but i dear say the 280grit finish works perfect with there type of piston ring martial to matte up perfect for a ring seal after seating in the rings, and I'm sure they have tried 600 plus grits and multiple rings as-well after soo many years of R&D I'm sure they have got it right down pat. anyone had any problems with such a ruff finish 280grit ? added the link to the install manual guide https://ibb.co/Fbx016T so i would like to start a poll but dont know how to....hopefully i figure out how to. anyone had any early piston ring fails with Manley platinum piston rings ? read a few people saying there rings are so soft that it makes such a perfect ring seal they are by far builders choice for drag quarter mile applications not seeing many miles and take High boost lovely BUT when used for track cars with more miles the Drag cars the soft rings wear out too quick for track use and have blow by issues.... the number i was seeing was about the 2000miles range the rings start to go. anyone herd about this ?
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07-26-2021, 09:46 AM | #2 |
Scooby Specialist
Member#: 491095
Join Date: Sep 2018
Chapter/Region:
SWIC
Location: New Mexico
Vehicle:2009 STi Blue Blue |
i havent actually torn down the block but an sr20 build i did ~8 years ago is still being nearly daily driven by its new owner...i still do the maintenance for the guy...i got second hand a block that the prior owner did not know it had manleys in it, am re-ringing it to refresh it, didnt have any reason to believe it was losing compression with looking at the rings/piston walls
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08-04-2021, 11:43 AM | #3 |
Scooby Specialist
Member#: 29292
Join Date: Nov 2002
Chapter/Region:
SCIC
Location: Orange County CA
Vehicle:2004 WRX wagon silver |
I heard the opposite, that their rings are actually pretty hard. there was one guy that did a teardown after 100,000 of daily driving and he said the rings still looked pretty good.. so yeah could be tolerances not sure but yeah
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08-11-2021, 07:33 AM | #4 |
Scooby Guru
Member#: 56203
Join Date: Feb 2004
Chapter/Region:
Tri-State
Location: south nj
Vehicle:00 RSTI Coupe Twin Scroll 2.5XTR EJ207 |
280grit seems to pretty common for honing.
Rings aren't failing on their own after 2k miles, something else caused that. No reason you shouldn't get 50-100k out of the rings. |
08-13-2021, 12:01 PM | #5 |
Scooby Specialist
Member#: 491095
Join Date: Sep 2018
Chapter/Region:
SWIC
Location: New Mexico
Vehicle:2009 STi Blue Blue |
just make sure your ring gap is where you want it for power goals, thats the only issue I would imagine would happen with manleys...them being to close and breaking or if not using a ring compressor and hammering them down breaking the rings...outside of that they can really take a beating and last quite a while! What really surprised me on my re-ring is how aggressive the napier ring is...i think will cause a fast seating!
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08-15-2021, 04:02 AM | #6 | |
Scooby Newbie
Member#: 379271
Join Date: Jan 2014
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Quote:
i started this poll because i saw 2 of the most respectable engine builders here on this forum they would never use Manley rings ever again because of too many low compression soon after. Maxpower and another guy i forget his username says they always change the rings and don't use Manley rings...However that was in 2014 and didn't know if Manley upgraded there rings hence i started the poll to see what's the % success with these rings. |
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08-15-2021, 04:08 AM | #7 | |
Scooby Newbie
Member#: 379271
Join Date: Jan 2014
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Quote:
when you say hammering them down you mean not using the correct size ring compressor ? you have to push them down VERY quick with a bit of force using a rubber hammer others use a plastic hammer but not smash them down like your playing baseball trying to hit a Home run? is this what you mean ? |
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08-23-2021, 07:22 AM | #8 | |
Scooby Guru
Member#: 56203
Join Date: Feb 2004
Chapter/Region:
Tri-State
Location: south nj
Vehicle:00 RSTI Coupe Twin Scroll 2.5XTR EJ207 |
Quote:
FYI: Maxpower wasn’t an engine builder and that was a long time ago. |
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08-26-2021, 10:06 AM | #9 | |
Scooby Newbie
Member#: 379271
Join Date: Jan 2014
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Quote:
LOL really ? then why was he talking like he built heaps and had many problems with Manley rings ? well this is why its good to open forum to make sure what people are saying is correct. Thanks for telling us Paul but are you sure he wasn't a engine builder ? he was the first one who mastered Ej stroker motors ? couldn't find anyone more knowledgeable then him on NASIOC ? |
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08-26-2021, 11:36 AM | #10 |
Scooby Specialist
Member#: 491095
Join Date: Sep 2018
Chapter/Region:
SWIC
Location: New Mexico
Vehicle:2009 STi Blue Blue |
yes i do mean unnecessary force...they should go in nice an easy and make sure you use the correct ring compressor! lol...saw a few funny build videos where they just didnt care an hammered em in like it was the world series, dont think those engines will ever run lol
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08-27-2021, 07:30 AM | #11 | |
Scooby Guru
Member#: 56203
Join Date: Feb 2004
Chapter/Region:
Tri-State
Location: south nj
Vehicle:00 RSTI Coupe Twin Scroll 2.5XTR EJ207 |
Quote:
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09-02-2021, 08:17 AM | #12 |
Scooby Newbie
Member#: 379271
Join Date: Jan 2014
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lol yes maxwell power...sorrry not maxpowers lol.... yeah this is why i started the forum because his mega knowledgeable on our ej motors and he conddemed manley rings back in 2012 and wanted to see if the rings got better in 2021 with more R&D in the last years
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