Piston Clearance Problem and Question for ls/vtec.

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Aug 18, 2005 | 10:46 AM

wushubrian

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Piston Clearance Problem and Question for ls/vtec.

I am building an all motor ls/vtec and I wanted to use ITR pistons. I got a b16 head with the golden eagle ls/vtec kit with a stock height head gasket. I've read both that the pistons will clear and that they will not and hit the valves. Could someone please clarify this for me. Thank You.

Aug 18, 2005 | 07:13 PM

wushubrian

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Re: Piston Clearance Problem and Question for ls/vtec. (wushubrian)

TTT

Aug 18, 2005 | 08:19 PM

pomansouth01

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From: montgomery, alabama, united states

if your what cams are you running, if its just stock cams, i know that you will be ok, but anything else, just gotta ask more specifically, and search next time please.

Aug 18, 2005 | 08:53 PM

wushubrian

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Re: (pomansouth01)

I'm using ITR cams. I searched and both came up. Some ppl said they would fit and some said they wouldn't.

Aug 19, 2005 | 03:11 AM

PyroProblem

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Re: (wushubrian)

one way to be sure is to clay the engine on assy. Or if you had a Borescope, but those are like $3K+...
I think some people also use the light valvespring method and do the "click" test.

Aug 19, 2005 | 05:16 PM

wushubrian

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Re: (PyroProblem)

Does anyone no for sure if they will or will not clear?

Aug 19, 2005 | 07:40 PM

PogKai

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From: San Juan, PR, USA

it should clear no problems.

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Aug 21, 2005 | 07:13 PM

wushubrian

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Re: (PogKai)

aight cool. any other just to confirm this?

Aug 21, 2005 | 07:57 PM

miller.91.HB

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Re: Piston Clearance Problem and Question for ls/vtec. (wushubrian)

If you’re building an all motor lsvtec I would recommend using B16 pistons over ITR pistons. It will bump your compression up a little more. I'm running the same setup and haven't run into any clearance issues. To be exact it’s about 11.3 - 11.5:1 with PR3 pistons.

Aug 22, 2005 | 09:15 AM

#10

ALMXDUPINTEGRA

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From: Ben, Dover, USA

CTR pistons over ITR pistons for LS VTEC is best

Aug 22, 2005 | 08:38 PM

#11

wushubrian

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Re: (ALMXDUPINTEGRA)

what will the compressin be with CTR pistons?

Aug 22, 2005 | 10:38 PM

#12

Used2beAb16

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Re: (wushubrian)

not ctr pistons just b16 pistons.

Aug 23, 2005 | 08:11 AM

#13

mmuller

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From: tallafizzy, FL state

Re: (Used2beAb16)

PCT pistons are not better...
people giving wrong advise...

Pr3's or p30's are the way to go.

you will have no valve to pistons contact using itr cams.

Aug 23, 2005 | 03:08 PM

#14

wushubrian

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Re: (mmuller)

Will there be any clearance problem with b16 cams either. Migth use stock cams for a while when i'm breaking the motor in.

Aug 27, 2005 | 02:36 PM

#15

wushubrian

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Re: (wushubrian)

Aug 27, 2005 | 05:16 PM

#16

PURPLETERROR aka BIGMATT

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From: albany, ny, usa

Re: (wushubrian)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wushubrian »</TD></TR><TR><TD CLASS="quote">Will there be any clearance problem with b16 cams either. Migth use stock cams for a while when i'm breaking the motor in. </TD></TR></TABLE>

If itr cams will be fine what do you think? b16 cams are much smaller and will have way more valve to piston clarance.