hardparked_ehtwo

The machine shop told me my piston to wall clearance as of now is already .005" and recommends me to go with oversize pistons but thats not an option for me right now. OEM service limit is only .002". Is this going to be ok and will there be any problems down the road? I don't know what the recommend clearance for vitara pistons are, but if any has gone thru a similiar situation can chime in? thanks

stockb18c

might here some slap

hardparked_ehtwo

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stockb18c &raquo;</TD></TR><TR><TD CLASS="quote">might here some slap</TD></TR></TABLE>

Yeah he said I'll have some slap during cold start..

aj99si

.005 is way to much clearance for a cast piston. you are going to have to go oversize.

confucioussae

iTrader: (1)

there is plenty of debate on this subject going on around td16.com

http://turbod16.com/viewtopic.php?t=34073

^ this thread is about a guy who has a .008 piston to wall clearance read these through. it might help clear up questionss

ANOTHER

http://www.turbod16.com/viewtopic.php?t=31192

hardparked_ehtwo

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by confucioussae &raquo;</TD></TR><TR><TD CLASS="quote">there is plenty of debate on this subject going on around td16.com

http://turbod16.com/viewtopic.php?t=34073

^ this thread is about a guy who has a .008 piston to wall clearance read these through. it might help clear up questionss

ANOTHER

http://www.turbod16.com/viewtopic.php?t=31192</TD></TR></TABLE>

Thanks

fast2camciv

youll be fine, i ran .004 on mine and it slapped a tiny bit...i have heard worse on forged piston cars. and yes jfk_78 runs .008 on his car and puts out the most of anyone using vitaras...thats gotta speak for something

Jared

this is apparently a problem with vitaras because they are undersized to start.

hardparked_ehtwo

fjt said I can exchange for some 76mm, but will that be fine on stock sleeve? or should I just stick with the 75mm and hopefully have pwc at around .0055"- .006" after a slight hone?

Jared

OMG, that one guy is at .008". Is he planning on making 1200hp?

confucioussae

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ehtwo &raquo;</TD></TR><TR><TD CLASS="quote">fjt said I can exchange for some 76mm, but will that be fine on stock sleeve? or should I just stick with the 75mm and hopefully have pwc at around .0055"- .006" after a slight hone? </TD></TR></TABLE>

yes, you will need to bore/hone though... then again, jfk ran on .008 without any problems..

from what i hear, .004 is best on these suckers

SovXietday

Mine is around .005, sounds like a deisel but works just fine.

litovi3tboi503

Go with .01" clearance you will be golden!

Jared

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by litovi3tboi503 &raquo;</TD></TR><TR><TD CLASS="quote">Go with .01" clearance you will be golden! </TD></TR></TABLE>

I hope you are kidding.

hardparked_ehtwo

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fast2camciv &raquo;</TD></TR><TR><TD CLASS="quote">youll be fine, i ran .004 on mine and it slapped a tiny bit...i have heard worse on forged piston cars. and yes jfk_78 runs .008 on his car and puts out the most of anyone using vitaras...thats gotta speak for something </TD></TR></TABLE>

Your car was my inspiration

litovi3tboi503

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jared &raquo;</TD></TR><TR><TD CLASS="quote">

I hope you are kidding.</TD></TR></TABLE>
why would i be kidding

.RTErnie

becauase .01" is TEN THOUSANDTHS of an inch... most forged pistons install anywhere from .0045-.0055 and higher depending upon how much heat you're going to put into the piston (expand via Horsepower)

confucioussae

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by .R T E r n i e &raquo;</TD></TR><TR><TD CLASS="quote">becauase .01" is TEN THOUSANDTHS of an inch... most forged pistons install anywhere from .0045-.0055 and higher depending upon how much heat you're going to put into the piston (expand via Horsepower) </TD></TR></TABLE>

.01" is a HUNDREDTH ( .1 tenth, .01 hundredth, .001 thousandth, .0001 ten thousandth)

....you are right though! .01 is WAYY to big of a gap to be running, OP will be lucky if his car goes anywhere and has oil by the end of the week if he dares put this in his car.

.RTErnie

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by confucioussae &raquo;</TD></TR><TR><TD CLASS="quote">

.01" is a HUNDREDTH ( .1 tenth, .01 hundredth, .001 thousandth, .0001 ten thousandth)

....you are right though! .01 is WAYY to big of a gap to be running, OP will be lucky if his car goes anywhere and has oil by the end of the week if he dares put this in his car. </TD></TR></TABLE>

<FONT SIZE="4"><FONT COLOR="red">YEAH NO ****...

ONE HUNDREDTH= 10 THOUSANDTHS</FONT></FONT>

hardparked_ehtwo

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by litovi3tboi503 &raquo;</TD></TR><TR><TD CLASS="quote">
why would i be kidding</TD></TR></TABLE>

Ignore him he's just messing around.

Joseph Davis

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by .R T E r n i e &raquo;</TD></TR><TR><TD CLASS="quote">

<FONT SIZE="4"><FONT COLOR="red">YEAH NO ****...

ONE HUNDREDTH= 10 THOUSANDTHS</FONT></FONT>
</TD></TR></TABLE>

Chill, homeslice. Simple math eludes some people. Further, their inability to measure in the commonly accepted units any automotive machinist is conversant with shows how little they know. Arguing on the internets with them will not change this.

Finding their home address, and killing them before they can breed, will make the world a better place, though.

.RTErnie

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Joseph Davis &raquo;</TD></TR><TR><TD CLASS="quote">

Chill, homeslice. Simple math eludes some people. Further, their inability to measure in the commonly accepted units any automotive machinist is conversant with shows how little they know. Arguing on the internets with them will not change this.

Finding their home address, and killing them before they can breed, will make the world a better place, though.

</TD></TR></TABLE>

ha...for some reason I felt compelled to break out the bolt, size=4, and the almighty color=red.

fjt

Mine had .006 clearance and it ran fine for the 2 yrs i had it. Never had problems of blow by and always my Compression test numbers were even.

JFK's car has .008 clearance and he holds the record for most hp out of the vitaras and stock sleeves (443whp)

BTW: I should be receiving 75.5mm vitaras in around a week or two and a second batch by mid July.

fast2camciv

i just built another block for someone, it had .0045 clearance...customer says it runs like a champ...i also over saw the build of another block that runs .006 and it is running flawless as well....on the 2nd motor it really has no audible slap at all...not sure why, but its very quite.

fast2camciv

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ehtwo &raquo;</TD></TR><TR><TD CLASS="quote">

Your car was my inspiration </TD></TR></TABLE>
thanks good luck with yours!!