2.1 Liter 16V.... Which Crank will do it????

[amalventano1@comcast.net (Allyn)]

Whered you get these pin height numbers from? Im not saying they are wrong, im saying i want some
piston tech info!
Al

----- Original Message -----
From: "Dan Bubb" <jdbubb@ix.netcom.com>
To: "DAN" <sciroccodriver@yahoo.com>
Cc: <scirocco-L@scirocco.org>
Sent: Monday, March 18, 2002 2:27 PM
Subject: Re: 2.1 Liter 16V.... Which Crank will do it????


> I think the next step up is a 1.9 diesel crank with a 95.5 mm stroke.
> With your pistons that would net 2067cc.
> BUT, there is one problem. The pistons you have (which are presumably
> for a 92.8 mm stroke) will have the wrong piston pin height for the
> 95.5mm stroke and will stick out the top of the block .053" more than
> they do now.
> There seems to be a common misconception among alot of people on this
> list that if you want a longer stroke you just drop in a bigger crank
> using the same rods and pistons. Then the piston will just go little
> farther up the bore and as a bonus you also get an increase in
> compression. But, the fact is that the piston to head clearance on these
> engines as they come from the factory is already a reasonable minimum
> and you cannot increase stroke without either using a shorter rod, using
> a piston with a different piston pin height or machining the top of the
> piston (if you think it will be strong enough afterwards!).
> It's also necessary to keep in mind that you need ~1mm piston to head
> clearance measured statically. When the engine's running at 6000 RPM
> crank, rod and piston stretch will use up that 1mm and allow the piston
> to come very close to the head.
> Just trying to educate a little and prevent unnecessary expense.
> Dan
>
> DAN wrote:
> >
> > Here's what I'm thinking... I've already got a 2.0L
> > block that I've been drooling over for 2 or 3 years.
> > I've already got biggger pistons to get me up to
> > 2008cc which I've also been drooling over for years.
> > I think I might as well find the crank that'll give me
> > 2.1 liters since I'm already going that far.  Can
> > anybody share pros/cons... DALE??  Also, let me know
> > what bottom end I need to source out for the crank and
> > possibly any identifying #'s on the crank just in case
> > I happen to have the right one in my garage already
> > from past parts conquests.  Spanks very much!
> >
> >
> > =====
> > Dan May - Greensboro NC
> > 1992 16V Passat
> > 1987 16V Scirocco
> > 1979 Scirocco
> > 1972 Harley Davidson Rapido(Handlebars WANTED!)
> > http://members.aol.com/scirocco87
> > "I thought I wanted a career... turns out I just wanted paychecks."  -unknown
> >
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