STAR

iTrader: (1)

Let's say your spinning a D1 55000 rpms and you pulley down and increase to say 58000 rpms is there a formula to calculate how much more power you can make? The blower will be producing more cfm, but how could it be measured? Just trying to figure out if its possible to predict hp potential using airflow?

'Trust'

iTrader: (24)

That all depends on your setup, what power you're making at 55,000, what setup it's on now etc.

bondosgto

thermal efficency goes down w/higher rpms

STAR

iTrader: (1)

Trust, can we use your combo as an example? Your car runs very well and makes big power, you must have changed your pulley along the way. Do you have a direct comparison with spinning your blower faster and not changing anything else? Here's an example:

Crank/blower pulley....................RPMS@5000

7.5/3.6.....................................42708

7.5/3.4.....................................45221


That's a difference of 2513 more rpms at only 5000rpms! Can we take that number and somehow figure out what the hp potential is?

Thanks