i think i'm strokin' it- was: how to tell how big yer block is?

[abatzis2@hotmail.com (Michael Abatzis)]

so i followed dan's advice (thanks!) and measured a stroke of...94.4mm??
bigger than a stock 2.0l? didn't think that would be the case. did i screw 
up this measurement? i don't see how i could have, and i repeated it a 
couple of times. at least it seems i'm dealing with something other than a 
stock 1.8, and my slowness problems lie elsewhere...
-michael

>From: Dan Bubb <jdbubb@ix.netcom.com>

>First of all a 1.8 can't be bored to 2.0. It also has to be stroked.
>With an 83mm bore (largest reasonable bore) and stock stroke the
>displacement is 1870.
>With 84.5 mm bore (largest possible unless you're the factory) and stock
>stroke the displacement is 1938cc.
>So, if it's really a 2.0 he had to have changed the crank for a 2.0
>crank.
>1.8 stroke is 86.4mm, 2.0 stroke is 92.8mm. 6.4mm or ~1/4". I'd think a
>screwdriver down the spark plug hole and turn the engine over slowly a
>couple times would be accurate enough to determine which crank you have.
>As far as the bore, I'd think you'd have to pull the head.
>Dan
>
>Michael Abatzis wrote:
> >
> > trying to figure out the true size of the block on my new 16v. po says 
>its a
> > 1.8 bored to 2.0l. i think it feels too slow. any way to check short of
> > pulling the head? if i pull the oil pan, will i be able to measure the
> > cylinders? obviously i won't be able to measure the combustion chamber, 
>but
> > all i need to know is if it's a bored 1.8- i should be able to tell the
> > diameter of the cylinder, right? tia,
> > -michael
> > new 87 mystery machine scirocco...
> >
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