[tech]: how to tell how big yer block is?

[pbureau@attbi.com (ATS - Patrick Bureau)]

well actually you can overbore and over stroke a 1.8l to a 2L engine
Bore: 83.5mm; Stroke: 92.8mm; 2035cc 

and autotech even wants to sell you a kit that fits into those dimensions
and they say it give 10.5:1 compression and supposed to output 150HP.

Patrick

=>-----Original Message-----
=>From: scirocco-l-admin@scirocco.org
=>[mailto:scirocco-l-admin@scirocco.org]On Behalf Of Dan Bubb
=>Sent: Monday, March 18, 2002 6:33 AM
=>To: Michael Abatzis
=>Cc: scirocco-l@scirocco.org
=>Subject: Re: [tech]: how to tell how big yer block is?
=>
=>
=>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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