[Shotimes] Power adder discussion

[Ron Tyler]

On Friday, October 3, 2003, at 06:18 PM, bjshov8 wrote:

> But isn't the amount of air output NOT linear with respect to the 
> rotational
> speed?
>

	Correct... If you double the RPM the boost multiplies by a factor of 4 
(assuming you are in the intended operating range of the blower). This 
is why some companies have used "transmissions" in their blowers... to 
get usable boost at low rpms without over-boosting at high rpms.



>> Centrifigal s/c's are linear, as they are driven directly from the
>> crankshaft, so the speed of the s/c impeller is directly proportional 
>> to
> the
>> speed of the engine.




Regards, Ron
www.rontyler.com

"If you understand what you're doing, you're not learning anything."