Measurements of head and piston cc WBX head
- fastback
- Posts: 1670
- Joined: Wed Sep 12, 2001 12:01 am
Measurements of head and piston cc WBX head
According to Gowesty the WBX cc sizes are like this:
Head 15cc
head clearance volume 7cc
94mm 2,1 piston 47cc
I measured my heads and pistons to
Head 17cc (+2cc)
Piston 49cc (+2cc)
I measured by using a plexiglass plate with a little grease to seal it and filled the chamber full with water. i used stock a spark plug.
and did not use the syl/head gasket when measuring.
i used a 20ml syringe to do the measurement
Anyone else measured their heads and pistons??
this is a differenece of +4cc.
so when i'm gonna make my combustion chamber bigger 4 cc makes a difference
Head 15cc
head clearance volume 7cc
94mm 2,1 piston 47cc
I measured my heads and pistons to
Head 17cc (+2cc)
Piston 49cc (+2cc)
I measured by using a plexiglass plate with a little grease to seal it and filled the chamber full with water. i used stock a spark plug.
and did not use the syl/head gasket when measuring.
i used a 20ml syringe to do the measurement
Anyone else measured their heads and pistons??
this is a differenece of +4cc.
so when i'm gonna make my combustion chamber bigger 4 cc makes a difference
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- Joined: Wed Aug 21, 2002 12:01 am
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- Posts: 448
- Joined: Wed Aug 21, 2002 12:01 am
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- Joined: Mon Mar 27, 2006 4:22 am
I have had several sets of (non VW), pistons custom made.marcotheturbosteamengine wrote:hey fastback it sounds like you have the MV/SS pistons, yes there were some diferances with the CC's dependent on year, i would not take the materal out of the head i would just buy some custom pistons with big dishes, i can get them made but will cost around £600 compleat.
http://www.rosspistons.com/
Around £240 + shipping and vat, forged, any design you like. Slightly cheaper than £600 quoted above. Amazing service from them as well.
Also
http://www.ariaspistons.com/
Great service as well.
- fastback
- Posts: 1670
- Joined: Wed Sep 12, 2001 12:01 am
Yes i have measured the pistons from a MV engine marco.
I'm considering the 96mm Wiseco forged pistons supplied by Gowesty for my engine.
But maybe i must reconsider this after these great links.!
If the prices are correct i would order a "MV piston" forged with a little more cc in it. and keep it 94mm (2,1l)
I'm considering the 96mm Wiseco forged pistons supplied by Gowesty for my engine.
But maybe i must reconsider this after these great links.!
If the prices are correct i would order a "MV piston" forged with a little more cc in it. and keep it 94mm (2,1l)
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Re: Measurements of head and piston cc WBX head
How does one measure the head gasket volume?
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- Joined: Wed Aug 11, 2004 6:20 am
Re: Measurements of head and piston cc WBX head
Headgasket volume is a basic calculation of volume of a cylinder.jackstraw wrote:How does one measure the head gasket volume?
The only thing you need to know is the installed or "crushed" thickness of the particular gasket you plan to use.
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Re: Measurements of head and piston cc WBX head
Cool. Thanks. I'll have to have one in hand I guess. But I'm thinking that an OE would be 94 mm and 0.040 thick ?
And, regarding the head, how does one cc it and then deduct for the cylinder wall thickness
Maybe I'm missing something.
This is the CR chart I use.
https://www.uempistons.com/index.php?ma ... 7dcc1a4529
And, regarding the head, how does one cc it and then deduct for the cylinder wall thickness
Maybe I'm missing something.
This is the CR chart I use.
https://www.uempistons.com/index.php?ma ... 7dcc1a4529