Re: Audi 3A 2L junkies, I have a Q

["Ewan Hopkins" <ewanhopkins@hotmail.com>]

AFAIK, the 3A is more like 11:1 - I have an AAD, which is effectively the 
same as the 3A and I get more pinking than with my old DX 10.5:1 engine. I'm 
in the UK, hence the strange engine codes! I'm not running knock sensors, 
although I should be!
I think the higher compression 8V engines are interference. AFAIK, it's only 
the older low compression engines which aren't.

HTH,

Ewan Hopkins


>From: Dan Bubb <jdbubb@ix.netcom.com>
>Reply-To: jdbubb@ix.netcom.com
>To: Jody Bailey <scirocco8v@home.com>
>CC: scirocco list <scirocco-l@scirocco.org>
>Subject: Re: Audi 3A 2L junkies, I have a Q
>Date: Thu, 10 May 2001 06:41:55 -0400
>
>Once the intake valves hit 40mm all the heads had the same combustion
>chamber volume, so the CR will be unchanged from what the 3A had
>originally which was probably 10:1.
>I'm pretty sure that the 8V engines are not interference as they came
>from the factory. There just wasn't enough valve lift for it to hit the
>piston. On the other hand, installing after market cams with more lift
>can make it interference.
>
>Jody Bailey wrote:
> >
> > Okay folks, I am all excited again.  I may finally have the 2L out of my
> > wrecked 87 into my 82 and running by this weekend so I got to thinking 
>and
> > came up with a few questions.  What is the compression going to be with 
>the
> > Audi 3A and a 8v solid lifter head?  Also, is this engine an 
>interference?
> > I figure it would be non-interference because of the solid lifter head, 
>but
> > wasn't the Audi 2L originally a high compression with bigger pistons, 
>thus
> > making it interference? TIA kids.
> >
> > Jody Bailey
> > 82 Scirocco 2L 8v -fire breathing, lowered, and loud as all hell ;)
> > http://www.scirocco8v.com
> >
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