9A Block Decking/Head Milling

[roccolister@hotmail.com (Craig Williams)]

Ron,

While I don't know the answer to your question, I can tell you what my 
experience is running a 2.0 16V with bumped up compression is. I bought a 
head from someowner parting out a 16V, and he had it decked already, and I 
don't know how much it had taken off. From the people I've talked to, they 
*think* I'm running about 11.2:1 compression. I'm also running 83mm pistons 
for a 2008cc displacement.

Once the new rings fully seated, the motor started to get a little 
troublesome. I've got it all under control now for the most part, and it is 
nice and fast, but the thing HATES to be cold. So much so that I'm usually 
running too rich when cold, but a little too lean when it's hot. If I make 
it rich enough to where I want it when it's hot, it will hardly idle when 
it's cold. I'm running CIS-e with the TT fuel enrichment module, BTW.

Like I said, it's nice and fast, but the high compression has given me some 
tuning issues.

-- Craig



>From: 'Cheapass' Ron Pieper <rapieper@yahoo.com>
>To: scirocco-l@scirocco.org
>Subject: 9A Block Decking/Head Milling
>Date: Thu, 22 Aug 2002 08:01:29 -0700 (PDT)
>
>Hey all,
>
>Anyone have experience on how much I can (practically) deck the block
>and/or mill the head on a 9A 2.0L (assuming I'm using the 2.0L head)?
>
>How much will the CR raise for every, say, 0.005" off either surface?
>How much will I raise the risk of damage if interference should ever
>happen?
>Anyone have sources or experience regarding thinner head gaskets?
>
>Yes, I'm already starting with a 10:1 CR, and detonation is a
>concern...but please don't let that stop you from offering input to the
>above.
>
>TIA,
>
>Ron
>
>=====
>Cheapass Ron
>'87 Scirocco 16Victor
>Pet Peeve du jour:  It's GTI not GTi!!  Read the nameplate!  (US only)
>
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