The AHK engine

[Stian]

Does the engine in the Plus have the same engine block as the enigine in the regular S6?

[Marc Welsch]

No, the S6PLUS block is complete diffrent to the normal S6 block. The block of the first S8 (AKH-engine, 340hp) is nearly the same, but the fix-points to the chassis are diffrent.

That´s the reason, why you can use only the AHK-block and no other block...

[Stian]

Ok, so I guess the AHK engine is a lot more durable than the normal S6 engine?
A tuner I spoke to about supercharging the eninge said that the S6 engine is not strong enough to be reliable with a supercharger. But he didn't know I had a plus... Would be really fun with 480-500 hp and 600nm

[Marc Welsch]

At MTM in Germany you can buy a biturbo-kit (420PS) and a supercharger-kit (450PS) for ower cars. Untill now they have produced about 15 cars. MTM won´t do that, if they have problems with the block...

[Larsa]

>Marc
Do you have a link to that parts at MTM i cant find it.

[Marc Welsch]

At their homepage you don´t get information about this tuning, the only thing you can read is a text of a magazine at this link:

http://www.mtm-online.de/presseberichte/au_s8_2.pdf

As I remember the price for this tuning is about EUR 20.000 to EUR 25.000. It makes nearly no difference, if you would like the supercharger or the biturbo-version...

[Pierre]

Marc, are you sure about this ? I believe the S8 engine with 360 HP is a 5-valve / Cylinder Engine, whereas the S6+ engine has only 4 valves/Cylinder. It is not the same, and Frédéric checked this already some time ago; MTM has never proposed the supercharger for the S6+.

[Marc Welsch]

As I wrote above it´s similar to the first S8-engine (AKH, 340hp). This engine had only 4 valves as well, only the newer (1999) S8 with 360hp has the engine with 5 valves.

That´s right, up to now MTM never had produced a supercharged S6PLUS. But the AKH-enigine is so similar to the AHK-engine, that this would work with out any problems.

[Robert]

But of course guys, a 50% increase in power will increase the load of different parts by roughly 50% and therefore shorten their service life.

I have plans to fit a supercharger on an Audi V8 engine, but I am not going to sacrifice a Plus for it, they are to rare.

[David van Eyk]

there is a PLUS engine for sale on www.ebay.de !!!

so thats the engine for your project!

[Robert]

Just have to find a good chassis then. Could be a competent race car in a light chassis!

[Robert]

Does somebody have documantation on the AHK-engine? Service manuals, exploded views, data, description of the design, features etc.?

I want to know more about it!

[Marc Welsch]

That's a problem. Even the Audi-dealers didn't have those information! If you need spare-parts for the AHK-engine, you are only able to order complete groups of pre-assembled parts.

Nobody at the official dealers will check the problem anymore, if something break down inside the engine. They are only allowed to change those groups...

[Robert]

Anyone got this document?

https://erwin.audi.com/erWinAudi//toc/e ... 508320.pdf

[Joakim]

Just buy it, it is only 18 EUR. It should be money well spent if you need it

Sometimes you can also find it on Ebay.

/Joakim