[20v] 7A vs 3B C/R

[Brandon Rogers]

Javad-
 I trust you based on knowledge you've shared with the list.  So did you
measure the chambers yourself or have somebody do it or??  The guy here is
saying he CC's the chamber and found them to be different?  This is contrary
to every response I got from the list, including yours.  Any further input
is greatly appreciated as I'm in quandary.  I currently have a 7A head at
the machinist for rebuild so I can put it on my 3B bottom end for transplant
into an urq-but this guy has made me nervous....

Thanks-

Brandon




----- Original Message -----
From: <JShadzi at aol.com>
To: ""Brandon Rogers"" <brogers at terrix.com>; ""20V list""
<20V at audifans.com>; <200q20v at audifans.com>
Cc: <urq at audifans.com>
Sent: Tuesday, May 06, 2003 9:19 AM
Subject: Re: [20v] 7A vs 3B C/R


This is not true, the compression he is referencing is the pistons, not the
head, both the 3B and 7A have about 37cc combustion chambers.

Javad

>Hi guys-
>I was talking with a local guy who is said to know a lot about Audi tuning
etc. He said that putting a 7A head on a 3B bottom would have a higher
compression ratio compared to normal 3B. He said it would increase from
9.3:1 to 10.3:1. This was not my understanding. Can anybody confirm or deny?
TIA-
>
>Brandon
>
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