underdrive pulleys

[carpeonnel]

I was wondering if anybody here is running the underdrive pulleys I keep seeing in magazines? I'm looking to pep up my K5 a little bit

 

[ryoken]

not worth the alternator, power steering loss in a offroad rig...

 

[carpeonnel]

so are the pulleys bigger than a stock one? I mean, how do they work?

 

[87 Blue Beast]

most of them just make the p/s and alt. pullies smaller, wich makes them spin slower, and is kinda like a gear reduction that makes the engine work "less hard" to turn everything

 

[carpeonnel]

Ah. Makes sense. Wonder if that affects the charging power of your alt

 

[87 Blue Beast]

yes, thats what ryokin was trying to say. slower speed means less charging and less steering power. its all about what you want out of your truck and what you use it for. if its mostly a street truck and you want and extra 6-8 hp, then yeah go for it. but if you use your truck for wheeling which uses alot of steering power and spends most of the time idling or alittle above idle, it isnt as beneficial

 

[carpeonnel]

Gotcha. It all makes sense now