and I was wondering if anyone had pics so I can have a visual of it before having to put it on. I didnt know you used the stocker along with the new pulley. Guess it's not a pulley and balancer therefor needing the stock balancer? thanks in advance

 

There are two different kinds of U/D pullies.... A) one that is an "add-on", and sandwiches between the stock damper/pulley and the stock hub. B) The other is a complete replacement damper and pulley integrated into one unit. Take off the stock unit completely, replace it with the new integrated damper/pulley.

Which one are you planning to install?

 

Here you go.

Pic 1

Pic 2

 

would you recommend complete damper and pully replacement?

 

Wow Ken, i didnt know you had to remove the engine to make that install

I did my ASP underdrive pulley on saturday. Get under the car, remove the 3 bolts that have the stocker on it. Pull the stocker off, you should have a new belt with your new pulley. The new pulley should fit into the old one. The new pulley will now mount to where the stocker was. The Bolts are a little tricky, because i had to tighten a little, loosen a little to get all 3 on. Make sure you remember how your belt goes. I used a digital camera to take pictures before i started. After you get the pulley on, put the belt on, loosen up the sucker next to it with a 13mm so you can get the belt on. If you dont, the belt wont come back on. Good luck, and when its done, you will wonder, what the hell was all that for!!!

the dyno i saw was around 3 HP average from idle to redline gain and 4 TQ. with a 0.7 peak HP gain and something like 5 TQ peak gain. Just a little mod.

 

shoot, let me elaborate, the stock pulley is attached to the new pulley. No belt goes on the old pulley. The new pulley will not move as freely as the old stocker. But trust me, it works.

 

Got board one day and decided to install that puppy. Took about two days to do it. j/k of course

 

you think the overdrive pulley is needed for alternator?

 

I think I'm feeling a bad case of the stupids coming on..... I didn't attach the new (smaller) one to the stock one... I left the stock one off.. Will this hurt anything? It's been running fine for months.

Mescaline

 

It's the "add-on" one and I got the overdrive pulley for the alt. so the stock belt should work?? thanks everyone for their help...

 

the overdrive pulley just makes it so the alternator actually isnt underdriven correct ? You sacrifice a very minimal amount of energy to spin it more but its probably worth that extra amount of voltage.

 

I know on mine when I did the stupid (some time ago) thing it ran ok but it was picking up a lot of retard for some reason. After I attached the two together it was a lot better (retard went away) This was confirmed with the Scanmaster that I have in the car.

 

It may be "running fine", but the increased torsional and axial displacement (vibration) of the crankshaft is shortening its life. The "damper" is there for just that purpose - to reduce the magnitude of the axial and radial vibrations, and reduce fatigue. It would be a very good idea to put the stock damper on top of the U/D pulley.

All of this assumes you are using an "add-on" U/D pulley, and not a complete, integral damper/pulley replacement.

 

I did the same thing (putting the new pulley on and keeping the old one off) and didn't experience any problems....yet. Alot of people make that mistake but put the old one back on over the new!!!