Whoosh overdriven water pump pulley

[Frontline17]

Any body install one of these? Did you notice any difference in hp or engine cooling? How was the install? Thanks

 

[daloonie]

I did install a PumaSpeed version. No difference in butt-feel. Cooling took no hit(I live in a mild climate though). The install was easy. 4 bolts and a serpentine belt.

 

[Frontline17]

I did install a PumaSpeed version. No difference in butt-feel. Cooling took no hit(I live in a mild climate though). The install was easy. 4 bolts and a serpentine belt.

Cool thanks. This one spins the water pump faster so it should help cooling with the upgraded radiator. Still less weight. Do you know what the torque specs for the pulley was?

 

[atlantaM3]

this is interesting to me because on other/older platforms, ideally you want a bigger radiator and slightly slower movement of the coolant through it, to allow more effective cooling. on other platforms, actually underdrive it to achieve that goal. From that POV, seem spinning the pump faster would be superfluous with a radiator upgrade.

For context, recently did this with an RS - bigger radiator with a lower temp thermostat - car is utterly rock solid on temps. no changes to pulley.

 

[Frontline17]

this is interesting to me because on other/older platforms, ideally you want a bigger radiator and slightly slower movement of the coolant through it, to allow more effective cooling. on other platforms, actually underdrive it to achieve that goal. From that POV, seem spinning the pump faster would be superfluous with a radiator upgrade.

For context, recently did this with an RS - bigger radiator with a lower temp thermostat - car is utterly rock solid on temps. no changes to pulley.

Nice. Yea it is an interesting topic I was looking into it aswell. Svt design and fab makes a underdriven pulley for the fiesta. I watched a video a video that sold me on the over driven pulley. He was stating especially with a bigger then factory radiator slower moving coolant will cause dead spots in the radiator thus reducing the cooling capacity and may cause warm spots in the motor. Faster moving coolant flow would prevent this.