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  #1  
Old 30-04-2010
Richard_Griffiths's Avatar
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Default Kyosho Piston Confusion
Hi All

Just wondered if anyone has the actual hole sizes on standard pistons from a ZX5 kit ?

On them is printed as follows

2A
2B
3A
3B

but this dosent explain what the hole sizes are i.e 1.2mm /1.3mm etc.

Any idea ???

Thanks

Rich
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  #2  
Old 30-04-2010
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http://www.petitrc.com/setup/ShockPistonComparison.pdf

That lists the sizes:

2A = umm, err, it's not on there...
2B = 1.3mm
3A = 1.1mm
3B = 1.0mm

I was confused too, I ended up drilling some out at Taly...
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Old 30-04-2010
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Logic would suggest 2A is 1.4mm... or 1.5mm?
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Old 30-04-2010
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2B = 1.295mm

2C = 1.19mm

3A = 1.09mm

3B = 0.99mm

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Old 30-04-2010
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hey Nick,

Can you be a little more accurate please
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  #6  
Old 30-04-2010
erkan erkan is offline
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so is there a list on what piston is softer or faster than the other?

those holesizes doesnt tell much since there are 2 or 3 holes.. or do i have to calculate the area of the holes to compare?
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  #7  
Old 30-04-2010
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Default piston sizes
Quote:
Originally Posted by njc11 View Post
2B = 1.295mm

2C = 1.19mm

3A = 1.09mm

3B = 0.99mm
and i bet you dident have to look that up either lol
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  #8  
Old 30-04-2010
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Hey Neil!... i'll try for next time!

First run for MP9 on the 16th (NNRC - NRS ).. cant wait!

Quote:
Originally Posted by mattb View Post
and i bet you dident have to look that up either lol
oi!! i did actually from a comparison chart Mike Pimlott gave me lol!!

Here we go...

3A = Soft

2B

3B

2C = Hard
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