[Diy_efi] Bosch DI and Bimmers

[Patrick Cahill]

The valve is ECU controlled. It varies according to engine load due to the
fact that it uses different spray types for differing loads, i.e. on light
throttle it only sprays just enough to ignite a localised region around the
spark plug and then on "full throttle" it runs similar stoich to a normal
engine.

I just got the yellow jacket on it before Xmas so I've read a bit about it.

Interestingly, I was heard the Audi engine guy (who did the R8) saying how
it was very difficult to get it to work past 7500rpm. He did stress,
however, that it was very difficult, not impossible.


Message: 16
Date: Wed, 08 Jan 2003 11:48:51 +0800
To: diy_efi at diy-efi.org
From: Mike <erazmus at iinet.net.au>
Subject: Re: [Diy_efi] RE: Diy_efi digest, Vol 1 #488 - 13 msgs
Reply-To: diy_efi at diy-efi.org

At 09:30 AM 1/8/03 +1100, you wrote:
>Yes, it adjusts between 5MPa and 12MPa (50-120 BAR) dependent on the
>pressure control valve.

Interesting, is this valve under ECU control or dedicated module,
 PWM type etc?

thanks

rgds

mike





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