I put my Unorthodox Racing Underdrive Pulley on today and love it. I think it did add power and the engine seams to rev faster. I would say it is a good value for the dollar, a must add!

 

hey rocket.. what size belt you get and where?

 

I used the stock belts..No Problem! and No Additional Cost!

 

im sure theres a spring loaded tensioner for the belt that took up any slack ;)

 

thats weeeeiiirddd... same stock belt? okay..easy enough.

 

is it better to use a different belt, if so, who or where can i get one?

 

When I got my pulley there were parts numbers for new belts in the instructions!

 

nope, no spring tensioners.

i think Unothordox messed up on the name...it should not be under driven.
it is just lighter than the stock one.

 

well i had one of my friends try to install it. he didnt want to use the same stock belt due to his previous mishaps on his own car. so does anybody know wat size belt to get now? and where?

 

you will have to measure it, then take that measurement to a good auto supply place and have them match the size...

use a string to get the measurement and bring the origal belt so they get the right number of groves...

 

hmm... didnt know. if its not an underdrive that would explain why it worked with no slack left over

 

judge for yourself see pics below... its underdriven about 25%
and supa lighter. i bought mine at www.fujiz.com















BELT from autozone

 

pics not working....

 

supa old pics and the pics start on pic number 65 and over.. you can view the otha pics if you want

http://www.imagestation.com/album/pi...il-AlbumInvite

 

cool..

 

So Perrin 119 $ on Ebay and Unorthodox 151$.......... is it worth to pay more moeny for that pulley......

What are the wieght differences.....????

Unorthodox claims 5 to 12 HP...what do you think...if it was for real it is a good deal but I have doubts about those numbers.....

 

so far i havnt hadnt had a chance to fully tested it because its raining. but heckk..i notice a difference.. the unorthodox is supa light.

 

both are super light compared to stock...
the unorthodox is an underdrive pulley. might not be what you should use in some setups.

 

The Perrin is lighter and not underdriven. That's what I'm goin for. That way, all accessories work at their designed specs and I don't have to buy a new belt.

 

Ok two questions:

If its underdriven so it should make more power than Perrin pulley since perrin's has the same size as the stock one. Right ???

Ok....will the unnorthodox fit on a 1.5L Toyota Echo (Yaris)..... it should but anyway I had to ask......