CA18DET std ring sizes?

turbophonic · Post by **turbophonic** » Tue Dec 05, 2006 12:13 pm

ANybody know the width and depth sizes for the three indiviual rings on the piston???
im trying to order a set of ROSS chome plated rings(for high boost) but need the size of the rings to put on the standard agents issue CA18det pistons.
Can anybody help??
ps:does anybody know what the agents issue rings are made of(cast iron...or are they chrome moly...and what is max boost with these std rings?)

johansx · Post by **johansx** » Tue Dec 05, 2006 12:29 pm

Sorry, factory manual only gives side clearance and end gap.

I would buy and match the rings and pistons from the same supplier, only after I got the exact sizes from the engineering shop. My $0.02

Nissan list 5 grades (sizes) standard pistons and 2 oversize pistons. Make sure your pistons are in spec before you add rings.

Vlade · Post by **Vlade** » Tue Dec 05, 2006 12:47 pm

83 mm

turbophonic · Post by **turbophonic** » Tue Dec 05, 2006 1:05 pm

just the rings size required.....pistons havd already landed!

dont wanna get std agents rings and find out they only hold 1.0 bar boost......wanna boost 1.5bar or more!!!

Vlade · Post by **Vlade** » Tue Dec 05, 2006 1:12 pm

ummm in that case get some Total Seal rings or some CP rings... No offence but why o earth is Ross's stuff so incomplete?

Compressor ring 1mm
Scraper 1.5

IIRC

turbophonic · Post by **turbophonic** » Tue Dec 05, 2006 1:51 pm

Thanx Vlade
will check prices and take it from there!!

Rezlo · Post by **Rezlo** » Tue Dec 05, 2006 2:13 pm

I thought these rings you wanted were for stock pistons? I know what the CP and Ross ring sizes are but I asked him to get the stock ring size so i can make sure they are compatible with stock pistons,

What pistons are you trying to find rings for, stock or aftermarket?

turbophonic · Post by **turbophonic** » Tue Dec 05, 2006 4:33 pm

Rezlo wrote:I thought these rings you wanted were for stock pistons? I know what the CP and Ross ring sizes are but I asked him to get the stock ring size so i can make sure they are compatible with stock pistons,

What pistons are you trying to find rings for, stock or aftermarket?

stock buddy stock!!!!!!!!!!!already have the pistons!!!!
all i need to complete this rebuild is the rings.....

Rezlo · Post by **Rezlo** » Tue Dec 05, 2006 8:45 pm

Oii, dont get an attitude, when you say you already landed pistons implies they are not stock. Not many people would import/buy stock sized stock pistons being that it would be rather pointless especialy when your your talking about large amounts of boost when picking rings, yet stock pistons cant take large amounts of boost at all, infact they are the weakest part of your whole motor.

You mind as well go to Alert engine parts and get a set of AE or similar rings for a NA CA18DE which are redily available, most of nissans NA and FI cars come with chrome plated top rings which is all you realy need to combat the added heat and pressure created by turbo's if your using stock pistons.

I have already spent more than 2 hours trying to find out what rings are compatible with the stock pistons with no one giving me the same answer, from here on out if you want rings you tell me what u want (band and part number) and if they dont work its not my problem. I dont have all day to sit and fck around trying to find out info that needs to be supplied to me by the customer.

ChemCool · Post by **ChemCool** » Tue Dec 05, 2006 9:03 pm

Rezlo · Post by **Rezlo** » Wed Dec 06, 2006 7:41 am

Alot of after market piston makers use slightly thicker ring sets. You need to measure your pistons and then cross reference them.

I would not recomend using a ring set that is to taut as you will probably lift the ring land's on your stock pistons

turbophonic · Post by **turbophonic** » Wed Dec 06, 2006 1:07 pm

Rezlo wrote:Oii, dont get an attitude, when you say you already landed pistons implies they are not stock. Not many people would import/buy stock sized stock pistons being that it would be rather pointless especialy when your your talking about large amounts of boost when picking rings, yet stock pistons cant take large amounts of boost at all, infact they are the weakest part of your whole motor.

You mind as well go to Alert engine parts and get a set of AE or similar rings for a NA CA18DE which are redily available, most of nissans NA and FI cars come with chrome plated top rings which is all you realy need to combat the added heat and pressure created by turbo's if your using stock pistons.

I have already spent more than 2 hours trying to find out what rings are compatible with the stock pistons with no one giving me the same answer, from here on out if you want rings you tell me what u want (band and part number) and if they dont work its not my problem. I dont have all day to sit and fck around trying to find out info that needs to be supplied to me by the customer.

attitude?????WTF???
if your having a stressed day buddy...may i suggest a ICE COLD BEER!!!

i hear on that mate...like a siad...thanx a million for your efforts(infact...u been the most helpfull thus far)
if i had a VAST technical knowledge like the rest of u i would know exactly what to get an do the rebuild myself.....but alas..im poor as shit and know buggerall....so thus the constant quest for help!!!!
but it's all good....will just get what ever and put this damn car together cause now it's more of a hassel than fun!!!!

Rezlo · Post by **Rezlo** » Wed Dec 06, 2006 1:23 pm

yeah actualy i should have one, this week so far ive got 800 emails with people asking me questions, 90% of the time the story changes as the emails/messages get more technical, you got thrown straight into the 90% catagory, sorry bout that.

But as i said on that drift site thing, rather use OE or similar rings if your going to e using them on stock pistons, its far safer.

ChemCool · Post by **ChemCool** » Wed Dec 06, 2006 1:31 pm

Hi Rezlo, this must be good for business then? Is the sx club keeping you busy?

Rezlo · Post by **Rezlo** » Wed Dec 06, 2006 1:35 pm

the marjority of it is just questions, also alot from the US

so far the SX club hasnt generated much, hopefully that will change