ABF vs ABA with 16V head...

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

1mm ? you meaN 0.10 MM RIGHT..?

pATRICK

=>-----Original Message-----
=>From: scirocco-l-admin@scirocco.org
=>[mailto:scirocco-l-admin@scirocco.org]On Behalf Of Marc Peterson
=>Sent: Thursday, February 14, 2002 10:26 AM
=>To: scirocco-l@scirocco.org
=>Subject: Re: ABF vs ABA with 16V head...
=>
=>
=>OK, but if I shave the head down 2 mm and remove 1 mm off the 
=>block, then i
=>should be back near 10:1...
=>
=>hmm...
=>
=>Marc
=>----- Original Message -----
=>From: BHonnold
=>To: scirocco-l@scirocco.org
=>Sent: Thursday, February 14, 2002 1:40 AM
=>Subject: RE: ABF vs ABA with 16V head...
=>
=>
=>Yes there are significant differences between the euro only ABF 
=>motor and a
=>US ABA.  The ABF uses the 16v lower crank pulley, intermediate 
=>shaft and oil
=>pump.  Of course the ABF also has 16v pistons where the ABA is 
=>8V.  When you
=>put a 16v head on a US ABA block you get 8:1 compression....not good for
=>anyting at all but losing races to every honda you meet.
=>
=>To bring compression back up you can do several things.  Source out ABF
=>pistons, pay $500+ for custom forged pistons, or rebush the ABA 
=>rods to use
=>2.0 16v pistons and wrist pins from a 9A block and get back to 9.25:1
=>compression and then use a thinner Headgasket to get back to the 
=>10.25:1 of
=>an ABF motor.
=>
=>The ABF also has a better higher flowing head, different cams, better
=>flowing intake manifold and a single butterfly TB.
=>
=>HTH
=>
=>Brian H
=>-----Original Message-----
=>From: scirocco-l-admin@scirocco.org 
=>[mailto:scirocco-l-admin@scirocco.org]On
=>Behalf Of Marc Peterson
=>Sent: Wednesday, February 13, 2002 8:34 PM
=>To: scirocco-l@scirocco.org
=>Subject: ABF vs ABA with 16V head...
=>
=>
=>Is this just a matter of shaving the head/decking the block to bring the
=>compression back up, or are there other differences between the 
=>two...(basic
=>mechanical issues, I know engine management is different)
=>
=>Cause I just happen to know where there is a ABA and a wrecked 
=>2.0 Jetta GLI
=>16V...
=>
=>Marc
=>
=>
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