Mb manifold

[amanda]

Wanted asap a good mb manifold must be an audi one and not dyalinx

[MGaz]

Wanted asap a good mb manifold must be an audi one and not dyalinx

whats wrong with dyalinx? I thought they were a good tuning company?


infact, while on the subject.. have you concidered upgrading to something better, like a tubular manifold?

[Phil Payne]

whats wrong with dyalinx? I thought they were a good tuning company?

They warp like wet boards on MBs. My pet theory is that the MB tried to return to stociometric too quickly when the throttle closes from WoT and the mixture goes very lean for several revolutions.

Remember the MB is unique in that it has electronic mixture control but no feedback on its success - there is no lambda sensor. It's very tricky to set up, especially since Audi also deleted the sense wire from pin 8 of the ECU into the engine bay. The wire that drives the fuel frequency valve is resistive and distorts the wavelength at the valve so you can't measure the duty cycle directly - you need a long-ramp ammeter to look for 430mA.

I'm taking one off tomorrow, as it happens. I'll record the event for public consumption.