overdrive or underdrive pulleys to the engine to increase horsepower which makes it to the wheels instead of being wasted on the pulleys. sorry im am very new to the maret for owning a vehical like are you talking about putting a diferent belt on ??? besides the serpintine belt ?

45

Asked by Sep 18, 2007 at 02:42 AM about the 1991 Ford Explorer

Question type: Car Customization

overdrive or underdrive pulleys to the engine to increase horsepower which makes it to the wheels instead of being wasted on the pulleys. sorry im am very new to the maret for owning a vehical like are you talking about putting a diferent belt on ??? besides the serpintine belt ?

1 Answer

46,615

Basically it works like this. The pulleys on the belt-driven accessories of an engine all rob a certain horsepower from the engine to run the accessories -- alternator, power steering, etc. This is based on the size of the pulley to get the rpms necessary to run the accessory. By putting larger or smaller pulleys on it is possible to run the accessories at the proper rpms but with less wasted energy than with the stock pulleys. This may require a different belt as you are changing pulley size. A good performance or speed shop or even Advance Auto will have a listing if these pulleys are available for your vehicle's engine. They are typically sold and replaced in sets.

1 of 1 people found this helpful.

Your Answer

Ford Explorer Experts

  • #1
    OJ
    Reputation
    11,760
  • #2
    Tom Demyan
    Reputation
    4,680
  • #3
    tennisshoes
    Reputation
    2,630
View All

Related Models For Sale

Used Ford F-150
3,154 Great Deals out of 231,768 listings starting at $1,300
Used Toyota 4Runner
329 Great Deals out of 29,799 listings starting at $1,500
Used Nissan Pathfinder
517 Great Deals out of 24,015 listings starting at $2,495
Used GMC Yukon
521 Great Deals out of 19,573 listings starting at $1,995

Used Cars For Sale

2018 Ford Explorer For Sale
32,117 listings starting at $25,118
2017 Ford Explorer For Sale
146 Great Deals out of 10,665 listings starting at $20,990
2016 Ford Explorer For Sale
180 Great Deals out of 3,944 listings starting at $14,995
2015 Ford Explorer For Sale
409 Great Deals out of 7,530 listings starting at $11,000
2014 Ford Explorer For Sale
194 Great Deals out of 3,904 listings starting at $9,950

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.