I'm in still for now, but I will need a lot of testing to get me to buy this.

Especially after what silly just posted.

 

what if the balancer can be moved out of the pulley?

 

With more information and some testing I'm interested.

 

Im in... Get the tests as soon as you can.

 

I was waiting for a whistle blower on this topic. I appreciate that you have a concern in the safety of our engines. There is advice from many different vendors that conflict on the importance of a dampener. The main reason they put a dampener there is so the car will run smoother. By allowing the crank to be dampened through a pulley it makes the resonance of the engine smoother. Our engine has a balance shaft which acts as the primary balancing agent in our engines. The dampener is not required and only put there to make the end user not complain about belt dampening. Furthermore there is a downside to the stock pulley in the fact that over time the rubber will shrink and then the pulley will actually seperate from itself. This would be very bad and replacing the pulley with my part would make this no longer a concern. Furthermore the effects of lightening the crank pulley and the balance of the crank are null. You don't see anyone complaining about a lighter weight flywheel, in many ways lightening the crank pulley makes the same difference to the engine.

There are MANY cars with 100-200k miles that have no issues with a underdriven and lighter crank pulley. I have never heard of any crank failures due to a lighter/underdriven pulley. I feel completly comfortable coming to market with this pulley. As long as the results are beneficial and there is power gains there is no reason to not go with this pulley. As far as making lighter pulleys for the alternator/water/AC those pulleys will not net as much as a gain as a single crank pulley change. It is also a PITA to change those pulleys.

For all you with aftermarket stereo's, subs, amps, etc what you need to know with this pulley is that at the same engine speed it makes the alternator do less work. At idle you will see the biggest differences. Where your car with the stock pulley may idle at 14.4 volts with this pulley it may be 13.5. If you have a well built system with a capacitor and high quaility components I would not be concerned. As the engine speed rises above 3k RPM the alternator has the same load as stock which means the pulley would make no difference in recharging capabalities over stock. This important for me to note for anyone with a stereo because I would rather lay everything out on the table before you make a decision. I will also test voltage of the charging system before and after with the pulley installed to see what the charging differences actually are. They may not be as great as I noted I was just citing an example. What you need to know is that the alternator at idle is barely even recharging the battery, the alternator because it is belt driven is a rising rate device where if there are more RPM then it will be recharging the battery at a higher rate.

STATUS UPDATE:
I will be contacting the machine shop today. I have not removed the pulley yet. I want to make sure they are available when I send it in so I can minimize the downtime for my girl's car. I will keep you posted on this.

Also Otter, PM me ~ I don't want you to back out.

 

I am also in with some proper testing. Sounds like a good investment.

 

joe when are the first pulleys suposed to be made and when do we have/ need to pay you?

 

I will keep you posted. I will not require any prepayment until I test the prototype piece.

 

When you say stereo you mean like aftermarket amps and subs right? Would it affect something as simple as an aftermarket MP3 deck? Just want to make sure.

 

An aftermarket deck should not affect this. I am talking about cars that have multiple aftermarket subs or amps that already have a power issue. People that skip corners and install systems into their cars and do not upgrade either their battery or add a capacitor are the ones that should be concerned. I am not saying that there will be a problem with the pulley I am saying there could be. Like I said I will check voltages before and after and report every detail I possibly can before I actually feel comfortable selling this part.

 

i owned two car with udp and had a car equipement(2xampli bd1000.RF) who take 60 amp test with ampmeter ...my light was flashing but never my car stall because of it......

 

8. turck26 (pulley and belt)

 

i'm in if every thing goes well so i guess i'm number 9. reimundo (pulley and belt)

 

i'm in.

 

while there are cases where there isn't damage.. there are also countless instances where there are..

the user should know the risks involved.. just my opinion

-joe