not that i know of after reading 400 + pages of pulley threads.

well a couple of people had problem with the unorthodox pulleys ,, but then again thats a small percent.

well I paid 110 for just the pulley , so i dont think its bad for 130 installed, it was really easy, just get a socket 22mm

there is a sale on AEM ones for 80 bucks ,With belts, you may want to check that out,...

keep us posted if there's any change in mpg.

Avaryc wrote:

Im not sure what you meant by the jenny craig comment. Does it feel faster, or just rev faster? Local shop is offering them for like, $130 installed.

though I know its more of a hassle with the auto. Do you build boost faster?

I believe the pulley only helps to reduce drivetrain loss.  After I installed mine, it definitely felt like the car gained a bit of hp, but that could just be placebo effect.  Now that I've had it on for a while, I can't really tell the difference.  This will in no way affect turbo spool time. 

$130 installed sounds like a fair price.  I got mine for $100 shipped, and me and Alan l. installed it together.  It's easier with 2 people.

goixiz wrote:

AbACUZ wrote:

the car feels not that much faster, but it is a bit quicker ,, my main thing is MPG ,, we'll see ....

the only thing with the automatic install is that you have to put a screw driver thru it so it does not move while scrwining it in. no big deal

are you sure ?
The pulley is keyed with the drive shaft
If you pulled out the old pulley make sure you did not loose the key or stayed with the pulley

When you said stick a screwdrvr in to install i was worried

pls check

I was refering to scruing in the bolt on automatic i did not have to do this.
thank you very much for keeping an eye out for us

$4.99 solution (with addtl 15% disc online)
strap wrench

wow .. the car is soo smooth

best mod dollar per dollar !!!

john_matrix wrote:

AbACUZ wrote:

wow .. the car is soo smooth

best mod dollar per dollar !!!

Until you have to pay the repair bill! 

http://www.wrxforum.com/cgi-bin/ultimat … 1640#00000

That sucks.  Not like I ever fathomed doing this mod, but I now know why this mod isn't that popular, it's shitty.

I just don't do mods where there are possible negative effects that may f up the engine.

Plus I don't really understand how the engine is balanced, etc. I think this is one area where I will leave it to the engineers and stay stock.


Aba, sorry to rain on your parade. This mod only has negative effects on some cars, not all. So good luck and enjoy the revs. 

In LS1 land, UD pulley is proven good for quicker revs and a couple ponies.  It's on the must do list for bolt-ons.
I've never researched its effects on the EJ20.

the ej205 does NOT need a harmonic balancer ...

oh man ... i hope this is not a 75 page thread like in the other forums ...

http://forums.nasioc.com/forums/showthr … did=444518

Last edited by AbACUZ (2006-07-19 16:41:48)

Although the guy on wrxforums sounds knowledgeable, I tend to keep people who use "dampening" when they mean "damping" at arm's length.  Also, he more or less contradicts himself, at different times trying to say that the pulley is too small relative to the entire system to make much difference, and then making it sound very important in other places.