piston ring gap

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Jul 27, 2008 | 02:41 PM

avotegra

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From: atwater, ca, usa

piston ring gap

piston ring gap on a turbo wiseco 81.5mm piston.....looking to get 400 hp.........what is the best gap on the piston ring....

Jul 27, 2008 | 07:38 PM

Desir Performance

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From: NYC

Re: piston ring gap (avotegra)

Usually you should have the ring gap specified in the packaging. Usually turbo cars go for .30 on the top ring and .20-.21 on the bottom. (cp pistons)

Jul 27, 2008 | 08:30 PM

Turbo B18C EJ6

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From: middleburgh, ny, us

Re: piston ring gap (Desir Performance)

What engine is this for? i used .018 top ring and second ring .015 inch for turbo gsr on my build.

Jul 28, 2008 | 04:16 AM

blackeg

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From: schooling kids in ny, usa

Re: piston ring gap (Turbo B18C EJ6)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Turbo B18C EJ6 »</TD></TR><TR><TD CLASS="quote">What engine is this for? i used .018 top ring and second ring .015 inch for turbo gsr on my build.</TD></TR></TABLE>

and i used .022 and .25 for my first and second ring.

theres a formula, its like bore diameter in inches x .0065 or .007

Jul 28, 2008 | 10:49 AM

Flamenco-T

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From: Tejas

Re: piston ring gap (blackeg)

Wiseco XX use, .016 top and .018 bottom.

XC, may have to increase it by .002-.003

stan

Jul 28, 2008 | 10:51 AM

Flamenco-T

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From: Tejas

Re: piston ring gap (blackeg)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackeg »</TD></TR><TR><TD CLASS="quote">

and i used .022 and .25 for my first and second ring.

theres a formula, its like bore diameter in inches x .0065 or .007</TD></TR></TABLE>

At that rate, your oil will prolly be all over the combustion chamber. Not all rings are made alike, some material hardly expands. I have had Wiseco XX rings on .012 and .013. 2% leakdown and the rings never touched when I pulled it out.

stan