Quote:
Originally Posted by particlewave
Unless you track your car, an UD pulley is unnecessary...even detrimental to the accessories. Most notably, the power steering pump.
It makes everything spin slower, so could affect cooling(water pump) and AC also, though opinions and actual data vary and are conflicting.
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I guess I don't understand this statement... How can reducing parasitic drag on the crank and therefore freeing up more power to the wheels be unnecessary? How can working the accessories less be detrimental to them? How can working the PS pump less rigorously be harder on it (it should result in increased steering effort tho I've never noticed it). BTW, it does affect the cooling. This is a fact. I noticed temps ~5° higher then with the stock pulley but only in stop and go traffic. All other driving conditions results in temps right where they've always been.
By the way, the car is a lot peppier and freer reving now and a lot more fun to drive (IMO).