[V8] Replacing a 3.6 with a 4.2 - Any BTDT?

[Dag Bøsterud]

I did a little e-mailing with ZF here in Europe regarding the automatics
in the Audi V8. The told me that the 3,6-transmission is designed for 360 nm 
@ 4100 rpm,
and the 4,2-transmission takes 410 nm @ 4100 rpm.

4,2 automatic also has this gigantic oil cooler supported by an electric 
fan.

/Dag


----- Original Message ----- 
From: "Bastian Preindl" <bastian at preindl.net>
To: <V8 at audifans.com>
Sent: Thursday, October 25, 2007 8:42 AM
Subject: [V8] Replacing a 3.6 with a 4.2 - Any BTDT?


> Hi Steve,
>
> some people have experiences with swapping the engines at www.audiv8.com
> (they also have an English forum). It's not that easy 'cause of
> different wirings of the automatic transmission and the ECU, also based
> on the year of manufacturing. It you've a 3,6ltr engine built after the
> mid of '92 it could probably be easier. As the (automatic) transmission
> of the 3,6ltr. engine is only designed to resist 340Nm I'd propose to
> also exchange the transmission, otherwise it could become damaged by the
> 400Nm of the 4,2ltr. engine. Even if you exchange both engine and
> transmission you'll most probably run into wiring troubles.
>
> Best regards
>
> Bastian
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