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Author Topic: Y32se pistons  (Read 3903 times)

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laney101

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Y32se pistons
« on: 04 March 2018, 18:13:16 »
Anyone know of any oversize pistons available for 3.2 omega forged or none forged
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robson

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Re: Y32se pistons
« Reply #1 on: 06 March 2018, 09:56:54 »
My son has engine parts business And he cant find any. He has given me a part no. for oversize pistons as Nural 87-126207-00 I have looked on fleebe Nural is there but not this part no.
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LC0112G

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Re: Y32se pistons
« Reply #2 on: 06 March 2018, 10:12:19 »
EPC lists p/n VX-24406212 as being 0.5mm oversized, but also says NLS and a quick Google doesn't look promising.

https://opel.7zap.com/en/car/v94/e/5/17-1/

How much oversize are you looking for? There are several 'standard' sizes which give you up to 0.05mm of wiggle room :

VX-24405799 PISTON,PIN AND RINGS,ASSY.,STD.,CYLINDER BORE 87.475-87.484 MM (IDENT 08) (NLS.- NO REPLACEMENT PART)
VX-24405804 PISTON,PIN AND RINGS,ASSY.,STD.,CYLINDER BORE 87.485-87.494 MM (IDENT 99)
VX-24405807 PISTON,PIN AND RINGS,ASSY.,STD.,CYLINDER BORE 87.495-87.504 MM (IDENT 00)
VX-24405808 PISTON,PIN AND RINGS,ASSY.,STD.,CYLINDER BORE 87.505-87.514 MM (IDENT 01)
VX-24405809 PISTON,PIN AND RINGS,ASSY.,STD.,CYLINDER BORE 87.515-87.524 MM (IDENT 02)

https://opel.7zap.com/en/car/v94/e/5/13-1/
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robson

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Re: Y32se pistons
« Reply #3 on: 06 March 2018, 10:53:49 »
In the old days we used Cords piston rings to take up wear do these still exist.
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Doctor Gollum

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Re: Y32se pistons
« Reply #4 on: 06 March 2018, 10:54:21 »
What are you aiming to achieve?

A known good replacement can be had for a hundred quid or so, and a new exchange engine from VX is well below £2k...
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Automaticman

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Re: Y32se pistons
« Reply #5 on: 06 March 2018, 18:27:22 »
Haha the whole car is cheaper  ::)
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Doctor Gollum

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Re: Y32se pistons
« Reply #6 on: 07 March 2018, 09:39:03 »
Quote from: Automaticman on 06 March 2018, 18:27:22
Haha the whole car is cheaper  ::)
You should probably stop drinking and posting.

If the op has blown his engine up through trying to tune it, then he might as well throw a second hand lump in. If he wants to make it factory fresh, then a new lump becomes more viable.
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laney101

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Re: Y32se pistons
« Reply #7 on: 07 March 2018, 23:20:29 »
Nothing wrong with engine .. But I am rebuilding a spare motor to go in mine when I have time
..

Ported heads raised compression Piper cams... Ported manifolds... And was going to rebore and fit larger pistons more Cc..

I could get the largest std spec and just lightly hone the bkres I suppose ... As will be having pistons coated

Was just hoping could get like a 0.5mm oversize piston that's all
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Doctor Gollum

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Re: Y32se pistons
« Reply #8 on: 08 March 2018, 01:13:53 »
Fair dos ;)

How do the piston sizes compare to the C20LET?
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laney101

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Re: Y32se pistons
« Reply #9 on: 08 March 2018, 03:56:40 »
Not sure but if it did fit I'd assume low compression as be a short piston no doubt..

I want higher compression
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Kevin Wood

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Re: Y32se pistons
« Reply #10 on: 08 March 2018, 08:35:44 »
Quote from: Doctor Gollum on 08 March 2018, 01:13:53
Fair dos ;)

How do the piston sizes compare to the C20LET?

IIRC, the X30XE is the same dimensions as the C20XE (and probably the LET), so the 3.2 will be nowhere near, unfortunately.

If C20XE bits fit in an X30XE bottom end then that opens up all sorts of options, but you'd need to lose 200 CC. Since the main objective is to gain a few CC in this case, that wouldn't be useful.

I'd just hone the bores and fit new rings to the existing pistons, TBH. You'd be unlucky to have any significant wear on it and 0.5 mm is not going to make much odds anyway.

Anything beyond that and the tuning support just isn't there for these engines.
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mandula

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Re: Y32se pistons
« Reply #11 on: 08 March 2018, 09:30:47 »
Quote from: LC0112G on 06 March 2018, 10:12:19
EPC lists p/n VX-24406212 as being 0.5mm oversized, but also says NLS and a quick Google doesn't look promising.

https://opel.7zap.com/en/car/v94/e/5/17-1/

How much oversize are you looking for? There are several 'standard' sizes which give you up to 0.05mm of wiggle room :

VX-24405799 PISTON,PIN AND RINGS,ASSY.,STD.,CYLINDER BORE 87.475-87.484 MM (IDENT 08) (NLS.- NO REPLACEMENT PART)
VX-24405804 PISTON,PIN AND RINGS,ASSY.,STD.,CYLINDER BORE 87.485-87.494 MM (IDENT 99)
VX-24405807 PISTON,PIN AND RINGS,ASSY.,STD.,CYLINDER BORE 87.495-87.504 MM (IDENT 00)
VX-24405808 PISTON,PIN AND RINGS,ASSY.,STD.,CYLINDER BORE 87.505-87.514 MM (IDENT 01)
VX-24405809 PISTON,PIN AND RINGS,ASSY.,STD.,CYLINDER BORE 87.515-87.524 MM (IDENT 02)

https://opel.7zap.com/en/car/v94/e/5/13-1/

This one? (with Google Chrome, right click and -> Translate to English)

INCL. TAX: €317.99 /each might rule them out  ::)
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LC0112G

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Re: Y32se pistons
« Reply #12 on: 08 March 2018, 09:33:19 »
Quote from: Doctor Gollum on 08 March 2018, 01:13:53
How do the piston sizes compare to the C20LET?

EPC says C20LET pistons are +/- 86mm diameter. They're gonna be a bit sloppy in an 87.5mm diameter block. ::)

https://opel.7zap.com/en/car/j89/e/9/11-1/
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Doctor Gollum

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Re: Y32se pistons
« Reply #13 on: 08 March 2018, 10:50:22 »
Well that's me told ;D
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