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The ideal setup is as much torque and HP as you can get. Why would you want more torque than hp? (especially when we're talking numbers that can break the tires loose in 3rd gear) Rally cars aren't designed that way it's simply a result of doing the best they can with the restrictor. Professional Rally-X cars make 700 hp and they're on the same type of surface as rally cars.

zbomb- remember also that while the load is high it's only 2-3 minutes max. In a single track session I'm on for 20+ minutes at full boost for long durations. There are seldom times in New England hillclimb at least (and of videos I've seen of European hillclimb) when the driver is FULL in it for more than 5 seconds at a time. I might even venture to say that the track is much more demanding, save for the launch in hillclimb. .. the launch is tough on the drivetrain.

Alex

 

Because you can't make power at high rpm's, due to the restrictor... torque at low rpm's is cruscial too, as you have many tight hairpins, and little strait lines. You are always braking hard then accelerating... not to mention that most of the WRC stages are not on tarmac surfaces (gravel, mud, etc...) where you need high torque due to the increased resistance of such surfaces...

 

I understand that you can't make the power. It's making the best of a non ideal situation. If you could have both you would. My point is that you wouldn't TRY to have more torque than HP were the restrictor not jammed in the compressor.

We aren't even sure if the original poster is using a restrictor or not are we? I don't use one in my hillclimb car.