Originally Posted by EIL132
another good way of seeing how much bhp your car has is to run it at santa pod ignor the time but look at what the terminal speed is if its crossing the line at just over 100mph its got around 210bhp per ton is the general rule of thumb"
that's a fairly useless way of evaluating any tuning that you've done as it wouldn't show you where and why any gains have been made
Originally Posted by JohnnyB
yes Bill, but if you can get enough wind in the front of a car on the rollers. you can get the engine mapping time right down, yes not perfect, but better than the shit chips going about these days.
you will NEVER get enough wind in the front of a car on the rollers. i run a climatic wind tunnel where we test automotive air conditioning systems. look what you need just to get 70mph worth of wind over the front of the car
here's our 220kW motor
that drives this centrifugal blower
to generate a wind speed up to 70 mph out of this nozzle
