Quote:
Originally Posted by semtex
I was about to explain it, then I realized that you can just Google it and get your answer. In a nutshell, your auxiliary items (like the air conditioner, for example) are powered by a crank pulley. An underdrive pulley is smaller and lighter, and sends less power to those auxiliary systems because they don't actually need as much power as the stock pulley generates. Power that is sent to those systems is power that is taken away from your wheels. So by replacing the stock pulley with an underdrive one, you are returning some of that power back to the wheels. End result = gain in whp.
Here, go to this link, it explains it more fully and better than I can: Underdrive pulleys - Wikipedia, the free encyclopedia
Edit: Here is the link to Stillen's web page for the pulleys.
STILLEN : STILLEN Performance Lightweight Pulleys |
Thanks for your short yet detailed explanation! Appreciated it.
Yes I agree I could have googled it, but coming from a consumer's point of view, I could not find any explanation from Stillen's webpage or from their initial first post on this thread. Which seems odd because how could a business can sell a product without providing even a small explanation on what the product does is beyond my "business imagination". I suppose the vendor expects us to google for it.
I come from a pretty modified Mini Cooper S background so I do have some understanding of what an under sized pulley will do for the Supercharger. And when I bought the undersized pulley for the Eaton supercharger, there was an explanation as to what the pulley does in terms of benefit. You know... smaller pulley = supercharger spins faster = more horse power to wheels = happy motoring days!
Anyways, after reading the wikipedia link, I have a better understanding of the pulley now and this product is probably better for colder climates not not for my equatorial country where I need the air-conditioning power! That being said, the stock sized pulley will be be the one for future consideration.