924Board.org

[925turbo]

And it is a lot of good pitchers on the engine on that site!

[Cbass]

I intend on sticking with the Motronic for a while... When I do upgrade, it'll be to a Motec, or a Motec clone. I have to buy the Motec to clone it anyways..

Do you have any pics of the conversion?

[Cbass]

Alright, I have the engine all nicely picked out. It's a later 20V turbo from a 92-98 S4 or S6, and it makes 227hp@5900 rpm. It makes 258ftlbs@1950rpm, and holds that torque until 4500rpm, where it begins to fall off. It has 9.3:1 compression, and runs 15 lbs of boost.

It has Motronic M2.3.2, which is adaptive, and learns when the motor detonates with different fuels, temperatures, and engine condition. It's fuel requirement is 91 octane, but it will make substantially more power with 97 or 101 octane gas. It can be chipped to 300hp with 24 lbs of boost, reliably. Parts are more expensive than a 924, but less than a 951... Very nice.

2.2L, DOHC 4 valve per cylinder, 3.19" bore, and a 3.40" stroke. Alloy head, iron block. Uses a K24 turbo, which is easily interchangeable with any number of K26 or K27 hybrids.

[Cbass]

Apparently these motors were also put in S2s... Here's a pic of the prototype motor, apparantly they won a rally or two with it, in some little know Audi (sarcasm)

[Joes924]

Interesting ...

[Cbass]

Yeah, and they made a lot of them...