Total BMW E30 M3/320is Rolling Road Day 20/5/06

535iSport wrote: SHEPSM3 wrote: The one at Silverstone would have cost more, as its the best Dyno Dynamics machine available. It has twin retarders on both front and rear sets of rollers. I dont know how much theirs was, but probably over £80k   The one at silverstone is the only one in the uk and one of only 2 in the world isn't it? I'm booked in for a rr day with my impreza and about 25 others, at the wrc tech one at silverstone on the 8th July. i've never had the scooby on the rollers but loads of the others have so i'll be able to let you know what differences they find.  + Hope that it's not too far out as i'm hoping to see around 280bhp. although i guess it will be nearer to 240bhp.

Yes, it is the only one in the UK, but what the hell do you want 2400BHP capability at the wheels for? That dyno uses pull downs, which when used on my car lost 20BHP, undo them so they are "loosely" fitted and it gained 20BHP. So with how hard you need to ratchet up the pull down straps to prevent traction problems on a high powered car, there must be a BIG question on how reliable those figures would be!!!!! There's a big arguement between a few dyno's and who's the best. But my money isn't with that machine.

From my very limited readings on the subject, Dynapack seems well regarded as a good dyno, mainly as it attaches to the hubs and reduces factors such as wheel slippage etc... Also easily transportable 

What machine is it theat you would put your money in to?

That's what meant.

Steve

Thought so

What's the damage?

Steve