:::RHMT::: Real Home Made Turbo

General Category => Hybrid/Tech => Topic started by: d112crzy on March 06, 2009, 07:07:36 PM

Title: Ring size question
Post by: d112crzy on March 06, 2009, 07:07:36 PM

When buying new forged pistons, the rings should be the same size right?

My friend ordered some pistons from Race Engineering, or at least "designed" by them, but made by Wiseco. Well, the sale ad said they came with rings, but after he paid for them Race Eng emailed him saying they didn't come with rings, so he bought some.

The invoice he got says they're 88.5mm rings, although he has 85.5mm pistons. THe part number on the rings say CPN 3366, which the parts number is the actual bore size, 3.366". Converted to mm, its 85.5.

So...wtf. ???

Title: Re: Ring size question
Post by: g_shok on March 06, 2009, 07:09:25 PM

maybe u'll get an answer when this place gets more then 10 users

Title: Re: Ring size question
Post by: d112crzy on March 06, 2009, 07:09:47 PM

maybe :P

Title: Re: Ring size question
Post by: soontobeDA on March 07, 2009, 01:42:17 AM

thats weird
most piston kits/brands

have pn with matching bore size

like 89.50mm has 8950 pn for rings

i know wiesco/supertech/ectt

Title: Re: Ring size question
Post by: d112crzy on March 07, 2009, 03:35:16 AM

Yeah, I found it weird too. I was just confused because I hadn't actually opened the package the rings came in just in case he had to return them. I had only read the invoice, which said he ordered 88.5mm rings for his 85.5mm pistons.

I guess Race Eng are a bunch of canadian homos. At least we got the right part.

Title: Re: Ring size question
Post by: 98vtec on March 07, 2009, 01:23:25 PM

that doesnt sound right at all.  My wiseco's were 89mm and the ring pack part number said 89mm as well.

Title: Re: Ring size question
Post by: Foowee on March 07, 2009, 04:18:02 PM

Do you have the bare block near by?  Can you fit a ring in the bore with out the ends overlapping? 

Title: Re: Ring size question
Post by: d112crzy on March 07, 2009, 09:50:13 PM

Nah, it's not a bare block yet.

The part number that the rings themselves were packaged in were correct, it's just the stupid invoice that was sent with the package said 88.5mm that confused the shit out of me.

I put 1 set of rings on the piston today and they fit/looked just fine.

Title: Re: Ring size question
Post by: 98vtec on March 07, 2009, 09:53:18 PM

all you had to do was measure their diameter lol

Title: Re: Ring size question
Post by: d112crzy on March 07, 2009, 09:55:36 PM

couldn't find any measurement tools. The pistons were much closer   O0

**the beaner smiley doesn't work*** >:(

Title: Re: Ring size question
Post by: 98vtec on March 07, 2009, 10:08:40 PM

i figured a mexican would at least have a ruler...

LMAO

Title: Re: Ring size question
Post by: CRX304 on March 08, 2009, 06:55:10 PM

those ring wont EVER work... call first and send everything back... someone was smokey when they took the order... but DONT file those rings to fit the slugs... blowby gaurnteed!!1!!1!!!!1