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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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Old 07-26-2021, 08:38 AM   #1
whiterabbitrexy
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Default 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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Old 07-26-2021, 09:46 AM   #2
Jedi03
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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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Old 08-04-2021, 11:43 AM   #3
subaru_gc8
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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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Old 08-11-2021, 07:33 AM   #4
Paul
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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.
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Old 08-13-2021, 12:01 PM   #5
Jedi03
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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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Old 08-15-2021, 04:02 AM   #6
whiterabbitrexy
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Quote:
Originally Posted by Paul View Post
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.
Hi paul have you built many builds with 280grit honing ?

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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Old 08-15-2021, 04:08 AM   #7
whiterabbitrexy
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Quote:
Originally Posted by Jedi03 View Post
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!
Thanks Jedi thats good to hear you an SR20 after 8 years had good rings still....i love to hear this sort of success.

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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Old 08-23-2021, 07:22 AM   #8
Paul
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Quote:
Originally Posted by whiterabbitrexy View Post
Hi paul have you built many builds with 280grit honing ?

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.
That’s what I used to hone my Audi 2.7T block, used some new stock rings, and have over 30k without any issues.

FYI: Maxpower wasn’t an engine builder and that was a long time ago.
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Old 08-26-2021, 10:06 AM   #9
whiterabbitrexy
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That’s what I used to hone my Audi 2.7T block, used some new stock rings, and have over 30k without any issues.

FYI: Maxpower wasn’t an engine builder and that was a long time ago.

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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Old 08-26-2021, 11:36 AM   #10
Jedi03
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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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Old 08-27-2021, 07:30 AM   #11
Paul
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Quote:
Originally Posted by whiterabbitrexy View Post
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 ?
Are you taking about maxwell power? Aka Dom? If yes he is/was a knowledgeable engine builder for our platform.
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Old 09-02-2021, 08:17 AM   #12
whiterabbitrexy
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Are you taking about maxwell power? Aka Dom? If yes he is/was a knowledgeable engine builder for our platform.
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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