AGENCY POWER CRANK PULLEYS ARE HERE!!!

Agency Power has just released their brand new EVO VIII 4G63 Light Weight crank pulley.

This pulley is a direct bolt on using the factory belt NO MODS NEEDED. The AP pulley weights about 1.1lb compared to the stock pulley weighing in at 4lbsand is .5 lbs lighter than perrin's. The weight savings in rotational mass equates to an awesome serious performance increase. If you're worried about the stories you have read on “crankwalk” or unbalancing the motor, then don't fear. The factory harmonic balancer reduces engine noise and vibration in the cabin and deleting this will NOT destroy your motor. The pulley is completely safe as a bolt on giving you between 3-6 horsepower and increased throttle response. Tested and used on the VividRacing.com 500HP EVO VIII!




Made from billet CNC machined Aluminum.



View from the VividRacing's Evo



Special Introductory price of $109.99

Free Shipping

ANY QUESTIONS? PM ME OR GIVE ME A CALL 480.966.3040 EXT 226

JACKY

 

Many of us on the board are wary of installing a pulley with no harmonic balancer.

"The factory harmonic balancer reduces engine noise and vibration in the cabin and deleting this will NOT destroy your motor."

It also absorbs the torsional vibrations of the factory crankshaft, deleting this WILL destroy the engine over time.

 

I have the UR crank and for what it is... My ses does not turn on... Evo's can have this mod with no problems...

 

An SES is not the only indication. If you and several other cars have run a harmonic-balancerless pulley for 30k miles and have perfect bearings, then maybe Evos can run without one with no problems.

You should really read this article:

http://www.atiperformanceproducts.co...mper_dinan.htm

 

Excellent article.

 

There will ALWAYS be nay sayers on every product. Some choose reflashes, some choose stand alones, some say fuel rails do nothing, some say they help. Bottom line is several companies have tested, designed, and engineered the pulleys to work safely, effectively on the vehicle. We are running one too on the car and have done so for awhile now.

Our only concerns with pulleys were underdriven ones, so that is why we use the same diameter. There is no concerns with "CrankWalk". Bottom line is alot of people buy these from us and other companies with great results. For every negative comment there is usually a rebuttable from another view. Your decision is made by you, not some supposed "professional"

Here is the pulley at work on our car -
www.vrsm.vividracing.com/main/appulley.avi

This pulley will be on my car till I sell it, and if it affects something on our car, I will personally post what happened and handle the customers appropriately as I am 100% guaranteed under normal driving conditions, there are no issues.

 

Other uses for the blingin crank pulley

 

"normal driving conditions" that doesnt mean it wont affect it during autoX and dragging then... what will you tell those customers?

 

Yes ... good article.

I don't know. This isn't some "Joe Bag-o-donuts" giving his uneducated opinion here.
This is Steve Dinan. He might know a little something on the subject.

I always thought the problem with extra vibration on the evo was the effect it has on the
(very sensitive IMO) knock sensor.

For those of you that haven't tried it, slam your hood while the car is idling.
The ECU, interpreting the hood slam as knock, pulls so much timing the car will almost stall.

My concern would be how the ECU may react to this new found vibration.
I could care less if the vibration makes it's way to the cabin and starts rattling the loose change in my cupholder.

I'm sure the vividracing car runs great with this product. But I'm also willing to bet it's using some form of
standalone engine management.

Can you address these concerns - cause it sure looks good otherwise

 

Crankwalk is not a side effect of undamped torsional vibration. The theory and use of torsional dampeners is not something new.

Here's the short version for those that haven't read that excellent ATI article: basically, the longer your crank is... the more you have to worry about dampening torsional vibration in the crank. If you have a flat-4, your crank is only 2-cylinders "long". If you have a V-6, it's 3-cylinders long. If you have an inline-6, it is 6-cylinders long.

Personally, I wouldn't run undamped with a crank of this length but it's more a judgement call than anything. Most V-6's or Flat-4's can get away with it, but I wouldn't try it with an inline-4 unless it was on a racecar and I was just DYING to have that pathetic 5hp. The stock pulley really is very light already, you guys dont have 18-25lb pulleys like some other cars so the gain is pretty small.

 

They have not gone through the testing that needs to be done, ie longterm effects on several different engines since every motor is balanced differently from the factory.

These pulleys are NOT designed and engineered to work safely; they simply designed something that would be as light as possible and retain the OEM dimensions. If it was engineered to work safely, it would have some function to dissipate torsional vibrations.

 

I did not even read the article. Cause it is about BMW's. Same concept, different engine.

Before you attack us, talk to Unorthodox, AEM, Perrin, and the others, they make pulleys as well for the EVO VIII.

This is not a Technical thread, this is a for sale thread. If you are interested in the product, then buy one, if your not, start a thread in the Technical Section to argue you it up.

 

Just personal experience I had my lightended Unorthodox pulley on my 1g AWD talon for 60k miles no problems, my brother on his 91 is going on 3 years and over 80k miles with his. I believe its jsut hype about the danger of the crank pullies. If they were so bad Unorthodox would be out of business lol.

Not trying to promote UR but just saying that thru personal experience, no problems using non harmonic dampended pullies!

Tom