RE: 16V head on 2.0 crossflow?

["BHonnold" <bhonnold@pac-cap.com>]

16v head on ABA block:

Yields 8:1 compression and requires a change of the oil pump, crank pulley
and intermediate shaft to 16v units. The pistons also have to be clearanced
so the valves dont smack.  Good news is this is identical to the factory ABF
motor so you can get the proper timing belt for it from The Potterman.

An interesting alternative to the compression issue and pistons problems is
to have the rods rebushed with non ABA rod bushings and then use 2.0 16v
pistons.  This yeilds 9.25:1 compression.  A little high for a turbo as it
leaves little room for error in tuning but great drivability off boost.  You
can also use a VW motorsport headgasket to get the compression up to almost
10:1 if your not interested in turbo.

HTH

Brian H

> -----Original Message-----
> From: owner-scirocco-l@scirocco.org
> [mailto:owner-scirocco-l@scirocco.org]On Behalf Of Chris DeLong
> Sent: Thursday, October 04, 2001 11:16 PM
> To: ferret100@juno.com; scirocco-l@scirocco.org
> Subject: Re: 16V head on 2.0 crossflow?
>
>
> Hmmm dunno about an A4 seeing as how they dont even have intermediate
> shafts. But AFA the A3; everything will bolt up. About 8 to 1 compression
> though. Turbo the sucker!
>
> Chris DeLong
> ICQ#45030867
> Seattle, WA USA
> '80 16V 'Rocco ragtop
> '91 GLi 2.0 16V
> '77 Rabbit 16V
> '80 'Vert (parting out!)
> '61 17 Window type II
> '91 Vanagon
> '78 Rabbit
> '78 Rabbit (for sale)
> '87 GTi 16V
>
>
>
> >From: Brian C Barrows <ferret100@juno.com>
> >To: scirocco-l@scirocco.org
> >Subject: 16V head on 2.0 crossflow?
> >Date: Thu, 4 Oct 2001 23:19:41 -0400
> >
> >Just out of curiosity, I heard someone say that it's a common mod to put
> >a 16V head on the A3/A4 I4 engine.  I've never heard of this.  Can
> >someone enlighten me?
> >
> >Thanks,
> >B.
> >
> >'82 Scirocco <-- sold  :-(
> >'85 Jetta
> >'87 Porsche 944
> >
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