[martrogers]

I believe the static test requires you to rev to 75% of peak HP, not a particular RPM, but anyway 4000rpm seems popular.

I failed the driveby test by 3db, 3db is a signficant amount. As far as I recall the driveby test consists of approaching the test area at 50km/h then flooring the throttle. In my case the auto then kicked down and I failed - unfair on autos but anyway.

So I did the following:

Stuffed the air intake

Put an adjustable bolt behind the accelerator (fly by wire) so that it accelerated but didnt kick down at 50km/h

Built a custom muffler and stuffed with fine wire wool.

Sealed the major holes in the engine compartment (including the whole of the underside with a sheet of ply.

Put in barium doped sound absorbant mat 20mm thk including behind the radiator to stop noise going out the front. Mat not cheap but performs well.

Passed second time.

I just missed the higher speed braking requirement but it means that only certain tracks have a long enough straight which will certainly add $$$$ to testing.

Mart