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Best Place To Buy Cp Pistons For Rb26

williamsf1

By williamsf1,
in Engines & Forced Induction

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williamsf1 Mentor

williamsf1

Posted
Posted

Ok before anyone asks, no I haven't banged my engine! (touch wood!) I have just been following the arias piston thread and thought that these seem to get the nod on some occations...

so I gather they are made in the USA, what are the prices here like?

87mm seems the go also what about 9 : 1 or 8.5 : 1 ?

I have found some in the states for $970 aussie... complete with rings etc....

ideas :P

pnblight Mentor

pnblight

Posted
Posted

Contact Markr34gtr is the man to talk to for CP pistons (very nice product) i used a set from mark on a r34 gtr vspec making 500rwhp plus happily. They run a 0.0035 clearance which is pretty good for forged pistons.

pete

Mik Experienced

Mik

Posted
Posted

Williams, that's pretty cheap if they are complete with rings.

One thing you need to be careful of with CP pistons, is that you get different rings depending on where you buy the pistons from. CP don't make their own rings.

I know if you order from CP direct, you get a japanese made ring. If you buy a set here, I'm pretty sure you get a US made hastings ring.

Also, the 87mm pistons you buy here are not an off the shelf CP piston, they are a custom piston and use a different ring width to the 86.5mm pistons (and the US 87mm pistons)

By the way Tomei pistons run 0.002" to 0.00225" clearance.

williamsf1 Mentor

williamsf1

Posted
  • Author
Posted

ok the reason I ask is I have found a place in the USA that does RB26 CP pistons... 86.5 and 87mm same as what cousin blitz has got....

I found the price to be rather reasonable, and that is with American rings matched to the pistons....

oh and that price would be me picking them up in LA :huh: but that isnt an issue....

but I am (touch wood a lot!!) not looking at doing this for a while, just curious as to the price diff locally...

ok the second part of my question has been skipped, comp ratio??

pluses and minuses for 8.5 or 9

cheers!

Mik Experienced

Mik

Posted
Posted
ok the reason I ask is I have found a place in the USA that does RB26 CP pistons... 86.5 and 87mm same as what cousin blitz has got....

I found the price to be rather reasonable, and that is with American rings matched to the pistons....

oh and that price would be me picking them up in LA :( but that isnt an issue....

but I am (touch wood a lot!!) not looking at doing this for a while, just curious as to the price diff locally...

ok the second part of my question has been skipped, comp ratio??

pluses and minuses for 8.5 or 9

cheers!

Hey Ben, I think you'll find the American 87mm pistons will be a different piston to Nicks ones. The Aussie distributor custom orders the 87mm pistons with thinner rings.

williamsf1 Mentor

williamsf1

Posted
  • Author
Posted
Hey Ben, I think you'll find the American 87mm pistons will be a different piston to Nicks ones. The Aussie distributor custom orders the 87mm pistons with thinner rings.

G'day Mik,

I can't say either way regarding the thinner rings, just that the CP pistons are for the RB26 and come in the 4 different options of size and comp....

I have emailed them regarding the rings spec...

Rob82...

no my engine is still in 1 piece... I was just asking out of curiosity....

I should think my engine should be going for sometime yet!!!!

here is the link to the site....

http://www.bnecustoms.com/store/home.php?cat=453

and CP

http://www.cppistons.com/sCompactNEW.htm

Marko R1 Grand Master

Marko R1

Posted
Posted

ben,

why aren't u speaking to jim @ dart? he recommends arias because of the ring quality (eqiuvalent of nismo rings)

at the end of the day its like asking the question of holden & ford?

it is personal opinion & they both have 4 wheels...

marko

williamsf1 Mentor

williamsf1

Posted
  • Author
Posted

hey mate :(

yeah I had the discussion about either of them a while back, I was just curious about the CP as I don't know much about them, and I know the arias are a good thing....

so how many km to go till u get some real boost? :)

Marko R1 Grand Master

Marko R1

Posted
Posted
hey mate ;)

yeah I had the discussion about either of them a while back, I was just curious about the CP as I don't know much about them, and I know the arias are a good thing....

so how many km to go till u get some real boost? ;)

Ben,

CRD recommends 1500km whereas Dart recommends 1000km

i may do 1250km :)

I hear you may be moving to Adelaide for good!?

Marko

williamsf1 Mentor

williamsf1

Posted
  • Author
Posted

yep! leaving old Sydney town...

well never say never.... but Adelaide is home, and plenty of GT-R friendly roads over there...

I'll just commute for work ;)

you will need some semi's for that car of yours now surely!!!

williamsf1 Mentor

williamsf1

Posted
  • Author
Posted
Williams, that's pretty cheap if they are complete with rings.

One thing you need to be careful of with CP pistons, is that you get different rings depending on where you buy the pistons from. CP don't make their own rings.

I know if you order from CP direct, you get a japanese made ring. If you buy a set here, I'm pretty sure you get a US made hastings ring.

Also, the 87mm pistons you buy here are not an off the shelf CP piston, they are a custom piston and use a different ring width to the 86.5mm pistons (and the US 87mm pistons)

By the way Tomei pistons run 0.002" to 0.00225" clearance.

ok this back in from the piston supplier....

"The rings are produced by CP Pistons. They are made of tool steel. Tool steel

is harder and stronger than the chromoly ones that everyone else sells. Plus

the tool steel rings seat a lot faster than the chromoly ones.

You also get Chromoly 5100 series pins, and wire lock retainers."

so they are made my CP?

Mik Experienced

Mik

Posted
Posted
ok this back in from the piston supplier....

"The rings are produced by CP Pistons.  They are made of tool steel.  Tool steel

is harder and stronger than the chromoly ones that everyone else sells.  Plus

the tool steel rings seat a lot faster than the chromoly ones.

You also get Chromoly 5100 series pins, and wire lock retainers."

so they are made my CP?

That is very odd. I was told CP don't make rings. The guys at CP in the states told me that they supply a Jap made ring.

The aussie dist supplies either total seal or hastings (US made rings)

Another weird thing...I always thought chromoly (ie chrome molybdeum (spelling??)) WAS tool steel!! ;)

But in any case, if I were to use CP rings, I would get them custom made to accept OEM rings and OEM tru arc locks.

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