burntkat
NAXJA Member #1145
- Location
- Charleston, SC
Folks-
I am curious if anyone has experience using an underdrive (aka "smaller outside diameter, so it spins the pump faster") pulley on a daily driver.
It's obvious of course that this gives superior performance at idle speed as the pump is spinning faster. However, it will also be spinning faster at speed- shift points being what they are, that can often be 4K rpm going down the interstate. I'm concerned about the fluid aerating as the pump cavitates at higher speeds.
Is this a realistic concern? I know the rockcrawling guys often use these, but those same rigs are often trailer queens.
As my hydraulic pump runs both my steering and braking, I could use higher performance. At the same time, I don't need issues with fluid aeration.
I am curious if anyone has experience using an underdrive (aka "smaller outside diameter, so it spins the pump faster") pulley on a daily driver.
It's obvious of course that this gives superior performance at idle speed as the pump is spinning faster. However, it will also be spinning faster at speed- shift points being what they are, that can often be 4K rpm going down the interstate. I'm concerned about the fluid aerating as the pump cavitates at higher speeds.
Is this a realistic concern? I know the rockcrawling guys often use these, but those same rigs are often trailer queens.
As my hydraulic pump runs both my steering and braking, I could use higher performance. At the same time, I don't need issues with fluid aeration.