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

47,655

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 people found this helpful.

Your Answer

Ford Explorer Experts

  • #1
    OJ
    Reputation
    12,200
  • #2
    Tom Demyan
    Reputation
    4,870
  • #3
    tennisshoes
    Reputation
    2,710
View All

Related Models For Sale

Used Ford F-150
2,344 Great Deals out of 215,477 listings starting at $1,300
Used Toyota 4Runner
281 Great Deals out of 32,848 listings starting at $950
Used Nissan Pathfinder
293 Great Deals out of 23,823 listings starting at $1,995
Used GMC Yukon
311 Great Deals out of 19,755 listings starting at $1,400

Used Cars For Sale

2018 Ford Explorer For Sale
4 Great Deals out of 34,998 listings starting at $22,888
2017 Ford Explorer For Sale
131 Great Deals out of 6,847 listings starting at $17,495
2016 Ford Explorer For Sale
116 Great Deals out of 3,944 listings starting at $14,000
2015 Ford Explorer For Sale
293 Great Deals out of 6,931 listings starting at $9,500
2014 Ford Explorer For Sale
105 Great Deals out of 3,006 listings starting at $9,500

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.