Disadvantages of 15% Pulley?

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May 10, 2006 | 09:23 AM

#26

Rastven

4th Gear

Joined: Feb 2006

Posts: 529

Likes: 0

From: South Orange, NJ

Quote:

Originally Posted by mdsbrain

See post #3 please

I did but post 3 only makes sense, after the following is explained

Quote:

Originally Posted by skankrabbit

The stock pully isn't bolted on, it's held on by pressure. To get it off you need to use a tool to yoink it off the shaft, which yoinks it off straight as not to bend the shaft. As to what happens with it... it's makes a pretty good paper weight.

To put it back on you need to heat it up (>350 degreesF I've heard, thus expanding the metal), and forcing it on. A PIMA if you ask me.

Most aftermarket pully companies have come up with a hub that sits on the shaft and allows you switch out pullys with bolts.

Thanks Ben, I had always assumed that the pulley was attached to a hub and bolted to the shaft. Reliance on an expansion coefficient seems a little odd to me.

May 10, 2006 | 10:06 AM

#27

advisor02

Thread Starter

1st Gear

Joined: Jan 2005

Posts: 18

Likes: 0

From: Seattle

Why go back to 0%

So, if the only result in installing a 15% pulley is improved performance, improved driving style and in some cases improved gas mileage (except for instances involving different user behavior:-)...why would anyone ever want to go back to stock or install a 0% pulley?

I'm pretty conservative when it comes to tampering with car mechanical infrastructure and have pretty much been convinced (thanks to all of the helpful posts) to make the switch to a 15% pulley but am curious as to why someone would do this and make the decision to go back to 0%...are there other disadvantages or problems with 15% or higher % pulleys that would cause someone to go back?

Thanks,
Miles