question about my ross pistons help

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04-26-2006, 06:29 AM

h22_crx

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question about my ross pistons help

i have a h22 with ross pistons the problem is i am going to run a turbo and you need.006 for the pistons to wall i only have .003 for the piston to wall

the ppl from the mach shop thinks that .006 is alot.

help

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04-26-2006, 09:46 AM

h22_crx

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Re: question about my ross pistons help (h22_crx)

anyone

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04-26-2006, 09:55 AM

99B16Si

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.006 is a bit much. most piston manufacturors recommend between .003-.004

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04-26-2006, 11:04 AM

tegturbo

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Re: (99B16Si)

ross wants at lest .006-.007 if not the pistons will scape the walls

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04-26-2006, 01:59 PM

non-VTEC

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Re: (tegturbo)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tegturbo »</TD></TR><TR><TD CLASS="quote">ross wants at lest .006-.007 if not the pistons will scape the walls</TD></TR></TABLE>

then ross pistons are scrap....they will make ALOT of piston slap when cold......i dont even thing a big block chev runs .006-.007 piston to wall clearence.........

sell those slugs and buy a set of JE or Wiseco pistons..

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04-26-2006, 04:36 PM

tegturbo

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Re: (non-VTEC)

i was told that they don't slap i never used them so i don't know first hand but there are some posts on here with people using them just search

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04-26-2006, 04:45 PM

alpha

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Re: question about my ross pistons help (h22_crx)

Funny. I just got off the phone with a mech engineer friend of mine who also builds motors and we were discussing this. What's the part number for your shelf pistons? Ross and Arias pistons expand more than some others but not enough to warrant .006 - .007 I would think. I will find out for you if you get me the part number.

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04-27-2006, 06:07 AM

zerovandez

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How do you measure the piston to wall gap? I have a helms manual and the illustration has one side of the piston flat against the wall and the other side gap is measured. So you only measure one side of the gap and not all around?

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04-27-2006, 07:02 AM

earl

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Re: (zerovandez)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zerovandez »</TD></TR><TR><TD CLASS="quote">How do you measure the piston to wall gap? I have a helms manual and the illustration has one side of the piston flat against the wall and the other side gap is measured. So you only measure one side of the gap and not all around?</TD></TR></TABLE>You would get the same results either way