So Unorthodox has the pulley for sale right now for $50.00 so I'm going to pick one up. I just wanted to see if anyone else believes their claim that it can add 7-12HP. This is NOT the underdrive one.
http://www.unorthodoxracing.com/Item...e=12&Model=131

 

I don't understand how it could make more power if it was not underdrive. Even if it was a fraction of the rotating mass of the stock pulley, it wouldn't make 7-12 HP.

 

Whoever made the webpage must have copied the same spec table from the underdrive pulley onto this one... that also says 7-12 hp increase

no hp increase on this one, just a dent... I wonder if they have more than 1 for sale

 

i have the pulley on my klze mx3 , it actually made a noticeable differance . it was a few lbs lighter than the stock. me and my buddy were racing with his h22 civic and we'd be dead even with the stock pulley, went home threw on the unorthodox and i would jump ahead off the line everytime, my buddy was all mad i put it on

 

yeah brah me and my homies were racing our honda's and we were dead even from stop light to stop light and then he pulled over and got a cheese burger and i chose not to eat, and he was so madd cuz i beat him everytime off the line after that.

 

do they even have paved roads in alabama?

 

nope, this is were Dr1fting started. Except we don't call it that. it's called.. haulin' ***.

 

Yea but doesn't the crank pulley on those cars weigh like 30lbs stock?

 

Even underdrive pulleys don't increase power that much. And they suck on the street.

 

is that a single piece pulley that requires the removal of the front eshaft bolt?

 

would love to know the answer to this as well - could be the solution to the timing woes I'm having with my frankenstein front hub/pulley

 

Wildly unlikely. Maybe if it was also underdrive, and used on a 12,000 rpm PP race motor.

 

I just sent an email to ask how it is mounted because it looks like a one piece for sure. I will let you guys know what he says.

 

you better ask them if it has marks at -5 L and - 20 T just like stock

 

Why is it suck on the street??

 

Yes I forgot that in my first email so I sent a second

 

if anything, nice little $50 bling bling piece for your engine bay, esp if you got an efan setup to show it off.

 

Take your $50 and go get some stock pulleys powder coated.

 

I took my pulley set off to replace the waterpump gasket and the inside of the rear and inside of the front pulleys are so rusted that it crumbles when you touch it so I just figured I'd see whats out there that isnt underdrive and I found this I figured for 50 bucks why not.

 

This is the response I got to the email:

"The pulley in the title is an underdrive pulley, the one at the end designates black anodize which we no longer do anymore. The unit on the site is the only one of its kind left. It replaces the entire pulley and hub assembly, this requires strict installation measures outlined in the pulley instructions to not have the thrust washer drop out."

Well... I guess I'm not buying it after all

In case anyone is interested in that thing he also happened to mention that the regular price could be brought down to $200 each with a group buy of 40 people...

Wouldn't powder coat add a lot of weight?
Can you get that steel heat treated or something to turn it that wierd chameleon colour or something?
I don't know much about metal processing; just that steel won't annodize do a cool looking colour like aluminum

 

^ Powder coat is a type of nice paint. Paint weighs almost nothing. I think you can get metallic-looking colors too, but I dunno how good they look.

It's for the water pump and alternator right? Underdriving the alternator is not good on a car that already has a weak alternator. Dunno about the water pump but the most common cause of engine failure on non-turbos is overheats. On the race track you drive at higher rpms so it cancels out the effects of the underdrive pulleys, so you save some horsepower from not overdriving everything.

 

eitherway They are a really good seller, i sent my payment at 10am and by 10 am the next day the ups guy was droppin off my part
they're outta montreal , im just outside london its not really that far

 

The underdrive pulleys will not spin the alternator fast enough at normal street RPMs, leading to a reduced capacity in the charging system. Combine this with a few more draws then stock (ie. e-fan) and voltage will be chronically low.

 

Ahhhaaa I was waiting for that. Aaron Cake's tech advice.

 

What about underdriven pully + fd alt for street driven??
In my own experience (I am currently running the unorthodox underdriven main crank pully) w/ fd alt.
I see, 13.Xvolts @ idle and on light throttle (or full throttle), I see 14.Xvolts.