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Replacement Rings For Cp Pistons

Antimatter

By Antimatter,
in Engines & Forced Induction

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Antimatter Experienced

Antimatter

Posted
Posted

Guys

I have aquired a set of "quite useable" 87mm CP Pistons. One of the rings is ROOTED though and thought it best to buy a complete set. I was reading on the hi-octane website (under CP Piston rings):

"Manufacturer: CP or ACL. Depends on our current stock"

http://hioctaneracing.com.au/eshop/product...products_id=633

Does this mean ACL can also supply a replacement ring set for these? Or is there any other option other than the CP rings? The top ring is 1.0mm and the 2nd ring is 1.2mm

Any help would be appreciated!

Cheers

Steve

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Zensoku Collaborator

Zensoku

Posted
Posted

for Total Seal rings (including their patented Gapless rings) try www.performancewholesale.com.au

be careful with which rings you buy, as different brands will have different axial widths (ie: the depth of the ring into the piston groove)

Make sure you check this too.

shanef Grand Master

shanef

Posted
Posted

i'm using a set of acl rings (also known as mahle rings) in a set of CP pistons. The acl rings are actually listed for a mitsubishi 4cyl engine, so i had to get 2 sets, bout $150 from memory

both acl & cp top & second rings are nitrided but the oil control ring in the acl set carries more tention ( personal preference but i like slightly more tention)

Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted
i'm using a set of acl rings (also known as mahle rings) in a set of CP pistons. The acl rings are actually listed for a mitsubishi 4cyl engine, so i had to get 2 sets, bout $150 from memory

both acl & cp top & second rings are nitrided but the oil control ring in the acl set carries more tention ( personal preference but i like slightly more tention)

ACL rings seal very well and come highly recommended for street engines

Antimatter Experienced

Antimatter

Posted
  • Author
Posted

Do you recall which mitsubishi it was?

The ACL RB26 pistons take a 1.5 top and 1.8 2nd ring, while the CP have a 1.0 top and 1.2 (I think) 2nd.

i'm using a set of acl rings (also known as mahle rings) in a set of CP pistons. The acl rings are actually listed for a mitsubishi 4cyl engine, so i had to get 2 sets, bout $150 from memory

both acl & cp top & second rings are nitrided but the oil control ring in the acl set carries more tention ( personal preference but i like slightly more tention)

shanef Grand Master

shanef

Posted
Posted
Do you recall which mitsubishi it was?

The ACL RB26 pistons take a 1.5 top and 1.8 2nd ring, while the CP have a 1.0 top and 1.2 (I think) 2nd.

i cant actually remember. if you can find an acl catalogue they are all in there

Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted (edited)
Do you recall which mitsubishi it was?

The ACL RB26 pistons take a 1.5 top and 1.8 2nd ring, while the CP have a 1.0 top and 1.2 (I think) 2nd.

correct...nice thick rings provide a good seal.

the CP's 2nd ring is 1.5mm from memory

Edited by DiRTgarage
Antimatter Experienced

Antimatter

Posted
  • Author
Posted

I just measured - the CP's I have a 1.0mm top and 1.2mm 2nd ring (sames as a set of Wisecos I have...)

shame I cant jam a big fat ring in there :)

correct...nice thick rings provide a good seal.

the CP's 2nd ring is 1.5mm from memory

Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted
I just measured - the CP's I have a 1.0mm top and 1.2mm 2nd ring (sames as a set of Wisecos I have...)

shame I cant jam a big fat ring in there :P

are they not new? The new CP's run thicker rings as i tried to use an older set of rings on NYTSKY's engine (i fu(ked one putting them in) and they were too thin. Had to buy a complete set of rings from Quantum just to get 1 second ring out of it...bugger!

Antimatter Experienced

Antimatter

Posted
  • Author
Posted

could be older style perhaps. The pistons themselve dont appear to have done much work. But definitely thinner rings

are they not new? The new CP's run thicker rings as i tried to use an older set of rings on NYTSKY's engine (i fu(ked one pu.tting them in) and they were too thin. Had to buy a complete set of rings from Quantum just to get 1 second ring out of it...bugger!
  • 9 months later...
Ramius83 Collaborator

Ramius83

Posted
Posted

Sorry to revive an old thread. However, I am trying to figure out if I have a newer set of CP pistons or not. I bought my CP pistons for my RB26 new back in September of 2007 and have been sitting in the box ever since. I measured the rings for craps and giggles and found that I have a 1.2mm top ring and a 1.5mm second ring. Do I indeed have the newer set of "thicker" rings/pistons?

And on top of that, should I upgrade to a set of ACL rings or others before I slap in those pistons? Thanks all........

Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted
Sorry to revive an old thread. However, I am trying to figure out if I have a newer set of CP pistons or not. I bought my CP pistons for my RB26 new back in September of 2007 and have been sitting in the box ever since. I measured the rings for craps and giggles and found that I have a 1.2mm top ring and a 1.5mm second ring. Do I indeed have the newer set of "thicker" rings/pistons?

And on top of that, should I upgrade to a set of ACL rings or others before I slap in those pistons? Thanks all........

they are the new design piston...the rings you have will be fine.

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