Whats a power pulley kit? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

Homer? · 05-26-2002, 00:19

And how will it give more power?

I noticed alot of 5.0 stangs have them in the states and FTE Melville is offering a kit for $290 fitted.

Trigger351 · 05-26-2002, 00:28

The diameter of the pulleys are reduced so that they rob less engine power:)

Homer? · 05-26-2002, 00:31

Does it work?
Any side effects?

Trigger351 · 05-26-2002, 00:36

I should say the motor pulleys........ the altenator, power steering pump, water pump etc will spin slower, so wont work as well. All you have to do is rev it harder:D

Homer? · 05-26-2002, 00:38

Might give it a miss then or wait till the diff ratio is changed.

Thanks Trigger

NZ XR8 · 05-26-2002, 01:46

I had the Air Con & Water Pumb pulleys replaced on my EF. No bad side effects (but I don't live in the desert, so don't need my AC all the time...).

Gave about 4kw at the wheel if I remeber right. That was on a manual.

NAPARM · 05-26-2002, 02:15

are these the same things as underdrive pulleys ?

NZ XR8 · 05-26-2002, 02:18

Quote:

Originally posted by NAPARM
are these the same things as underdrive pulleys ?

That would be another name for them in my books.

rally · 05-26-2002, 16:23

Quote:

Originally posted by Trigger351
I should say the motor pulleys........ the altenator, power steering pump, water pump etc will spin slower, so wont work as well. All you have to do is rev it harder:D

Something doesn't gel here. Assuming that the crank pulley is not changed, putting smaller pulleys on the accessories will actually make them spin faster, not slower, sapping more power rather than less.

???

Jesmol · 05-26-2002, 17:09

Quote:

Originally posted by rally

Something doesn't gel here. Assuming that the crank pulley is not changed, putting smaller pulleys on the accessories will actually make them spin faster, not slower, sapping more power rather than less.

???

I agree with Rally on this one, I would have thought the change would have been to reduce the crank pulley size, or upsize the other pulleys, increasing the effective gear ratio making the torque requirement to drive less, thereby reducing drag....