Ok i did search and there really was no definative answer... I was going to get the AEM pulley kit for my 5th gen. But i heard a lot of people saying they will wreck the bearings in your car and cause major unpleasent things to happen. But since the AEM kit dosent remove that vibrational dampener or replace the crank pulley should the AEM kit be safe to use over say the Unorthodox set that does replace the crank pulley? Any knowlege/ first hand exp would be amazing thanks.

 

i think they only mean changin the crank pully will eventually damage crank bearinng because they are not balanced.

 

AEM does not replace the crank pulley and does not give you much power...

UR pulley set replaces the crank, alt. and PS pulleys and gives you a good power gain...

 

I didnt think it would give you as much as the Unorthodox but a heathy engine is better than a mangled one...

 

It will just make your lights dim lol. but in reality, it will free up a little power...not too much.

 

are they diffrent diameter? or lightweight? how exactly do they free the power.... sorry im slow...

 

They're larger diameter thus underdriving the alternator and PS. Meaning that the alternator and PS pump's shafts get less action from the pulley, it is a little lighter also. While the UR pulley is lightweight and puts less work for the spinning to happen.

 

Edit:^^^ I am slow, too....you got it first...

The AEM pulleys are larger and lighter, therefore the engine has push less to turn the pulleys. Larger pulleys make it easier to turn, but the accessory being turned goes slower=maybe dimmer lights...also called underdrive...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kal &raquo;</TD></TR><TR><TD CLASS="quote">It will just make your lights dim lol. but in reality, it will free up a little power...not too much.</TD></TR></TABLE>

No joke, I know people who have had charging problems when using aem pulleys.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gen4vteclude &raquo;</TD></TR><TR><TD CLASS="quote">

No joke, I know people who have had charging problems when using aem pulleys.</TD></TR></TABLE>

I doubt i will run into that issue because i dont have any massive stereo or speakers but il keep that in mind...

 

couldn't you just drill bigger holes in the stock pulleys and yield some results? if you did that to the crank would it unbalance it? if it worked, it'd obviously be a mucher cheaper option.

 

I belive it would unbalance it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hawkze_56 &raquo;</TD></TR><TR><TD CLASS="quote">
The AEM pulleys are larger and lighter, therefore the engine has push less to turn the pulleys.
</TD></TR></TABLE>

yeah exactly thus it can make more power it is known as reducing parasetic draw

if you are looking to rev faster go with a lightened flywheel

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fireslinge &raquo;</TD></TR><TR><TD CLASS="quote">I belive it would unbalance it.</TD></TR></TABLE>
yep

 

meh i think im just going to put money towards the auto-man swap better place to gain hp to the wheels anways...... stupid automatics make life suck...