ZPIracing

We have heard a lot of concern about the lightweight pulley that we offer. All we can say is that the pulley is top notch as all or our products and it will in no way affect the internal balancing of your engine.

We would not sell this product especially with our name on it if we felt there was a potential for premature engine failure.

We have been asked for some pics compared to the stock pulley so here you go. I am a true believer in this pulley and feel that it is the best bang for the buck for the tC this side of nitrous.

Thanks

-Kenny

JakeMafia

how hard is it to install one of those ZPI, and how much would you guys charge to install a pulley

87na

the pulleys are not very had to install if you have power tools. the main thing is the crank pulley bolt that holds the pulley onto the crank itself, it is on there pretty well. you can usually get a pulley installed at most shops for about 50 bucks.

here is an installation link just for reference....
http://www.nonstoptuning.com/pKitToy...stallation.htm

Lonely_Raven

Looks pretty!

seen4ever

god that stock pulley looks almost as poorly designed as the 1g crank pulley. kind of like how they can separate..

ZPIracing

One piece design equals good two peice equals DSM reliability

We charge 55 dollars to install these as they are under 1 hr labor. Your average Do it yourselfer could do it in about 45 minutes in your driveway.

In stock if you would like these

ZPIracing

oh and to answer the PM that is 4.4lbs and 1.1lbs not 44lbs and 11lbs

aarontrini85

what is the msrp again????

aarontrini85

oh yeah and whats up with the intake manifold????

KYBoy

if anyone is thinking about getting one DO IT
i have this part installed on my car and you can really feel a difference. its awesome, every gear will pull harder and the car revs much faster.

KYBoy

if anyone is thinking about getting one DO IT
i have this part installed on my car and you can really feel a difference. its awesome, every gear will pull harder and the car revs much faster.

XD40tC

So is this one of those parts where my warranty wont be voided unless it actually causes the problem or will it be voided with this like it would be with nitrous? Does nitrous void a warranty? lol I like this though and I will eventually get it because I hear so much good about how it really performs and I could use the extra power.

XD40tC

By the way what the heck is the price on this because I cant find it on the site?

stl_tc_king

^^^ Yeah, what he said.

lo_bux_racer

Steve Dinan thinks replacing a harmonic damper (as the 2AZ has stock) is a bad idea. So doe Reg Riemer of RCTS Canada. So do I. Check out these links:

http://www.suprasonic.org/public_htm...ech/dinan.html
http://www.suprasonic.org/public_htm...atedamper.html

I had a long argument with Shawn Baumgartner of Unorthodox Engineering back in '98 about his solid pulleys for the 2JZ. He said no long term damage, blah, blah, blah. Then Supra owners started having flexplate bolts mysteriously back out, and had the dragontooth (the starwheel, or crank position indicator) rotate on its mount causing the engine to either stop running in service or fail to start.

It would really suck for the 2AZ's counterbalancer gears to develop slop as a result of unchecked torsional vibration after 20 or 30k miles and have them increase vibration instead of decrease it.

If you are going to replace the pulley, it should be for an improvement, not a risk. Wait for an SFI approved damper that retains the harmonic damping and reduces weight as well, it's a win-win.

For example:
http://www.boostlogic.com/parts/supr...ra_Damper.html
or
http://www.titanmotorsports.com/titmotdamcra.html

The_Instigator

Thats what Ive been sayng. The "2 piece design" is really an integrated rubber strip to reduce harmonic vibrations. Its there for a reason and costs toyota a lot of money to develop and produce them. They would save millions in going to a 1 piece aluminum design, but yet none of the manufacturers run crank pullies that way. Just something to think about.

lo_bux_racer

This will void your warranty for any bearing related failure. Abnormal bearing wear is one of the symptoms of torsional vibration. A solid pulley (ANY solid pulley) does not dampen torsional vibration and can create serious issues.

Even Honda is keenly aware that larger four cylinders need a harmonic damper. They don't use them on the smaller engines, but use them universally on the larger ones.

It's unfortunate the import scene is unwilling to learn from the domestic guys. They can quote chapter and verse about torsional vibration problems because they've seen it all, including broken crankshafts.

stl_tc_king

hmmmm.... interesting....

87na

interesting indeed.... considering my buddies and I , with various different imports, have never had the problems (during the last 5 years, 50,000+ miles) that all the anti-pulley profits speak of.
knock on wood, keeping fingers crossed

lo_bux_racer

I'm not profiting from anything, unless you meant prophet. I am reporting personal observations, opinions of highly respected tuners, and sound scientific evidence a problem exists. I'm glad you feel 50k miles is a good testing sample. It doesn't change the physics.