Re: Bypass Audi 5000T boost

[orin@netcom.com (Orin Eman)]

> About half a year ago I learned from Audi mailing list there's
> an easy way to boost my 1987 Audi 5000 Turbo power by only
> changing a spring in turbo's gate (pressure from 1.3 to 1.9) 
> and somehow hacking chip's code to get gas pump pressure upper.
> Actually something around 1.6-1.7 would be enough for me.

True.  Our source of springs seems to have dried up, but Superchips
sells them for $50 each.  There is also Paul Timmerman's
SchrapnelKnobben - a pressure regulator rather than a spring
which would probably be better for you.

> This car has WC engine (160hp) with watercooled turbo. 

I don't see the WC engine in the US Bentley - do you know what computer
it has?  We know where the locations are in the MAC11B, but they
may be different in your computer.  However, given a dump of the
computer's EPROM, we can find the boost limit easily enough.

> Or, is there another way? At that time Orin wrote:
> 'I'm still working on decoding the MAC11B.  A boost upgrade may 
>  well be as simple as reprogramming the table which activates the 
>  wastegate solenoid.'

I have a chip which does this for the MAC11B.  However, it is rather
tame compared to a spring or pressure regulator... again, given a dump
of your EPROM, this too would be pretty easy to do.

Orin.