Is anyone running a lightened crank pulley with a turbo.

I have read tons of good post on the pulley, and tons of bad...

Reason I am asking is I will be going F/I soon and I also have a lightened crank pulley that is sitting in my garage. Wondering if I should install or sell???

Let me know what you guys think.

Thanks-Scott

 

I have a NST lightweight crank pulley and am supercharged. It made a world of a difference. The car revs up much faster now.

 

how long have you had it on the car and what kind of HP you pushing with the 9.5lb pulley?

 

i have an agency pwer pulley on my car now with my dezod kit seems to be running fine, but the car is making a very small clicking noise when at idle for a while dunno if it belt or just somthing else that i dont really even need to worry about, have to admit the pulley made a big difference.

 

Ive heard some horror stories about FI and Pulley. I was using a ZPI v.2 when I was NA and it was a great mod. I took it off the day I install my turbo.

 

I would think it benefits the turbo, cuzz if a lighten flywheel helps turbos spool up faster then the lighten pulley should do the same.

 

We sell these to a lot of our turbo customers as well as run them on every one of our turbo cars and they make a huge difference with no ill effect what so ever....

 

If you want to read good things about crank pulleys then you come on scionlife..

If you want to read bad things about pulleys then goto yoursciontc.com.

 

Wonder how fast this thread will get locked.

The only "good" things are coming from the people that are trying to sell them.

The only "bad" things are coming from people that back their thoughts up with physics and engineering.

 

You show me any engineering proof our ligthweight crank pulley can damage an inline 4 cyl overhad cam engine I would be very very surprised. This needs to be proof not myths of harmonic sounds waves piercing the ears of childern.

 

I want a pulley, not sure whos to get though. My tuner told me not to get one cause of vibration but I so wanna get one cause they got good gains

 

You know you have been dying to get a ZPI part on that car....I think it is time to come to the dark side.

 

Haha lol... IMO the pulleys will deliver results. I had ZPI crank v2 pulley on and it helped. I went NST for my new turbo'd tC and happy with the results

 

ive had mine on for a while now and no probs cars runs mint, and im turbo.

 

I have not dyno'd my car yet so honestly I can't really tell you my hp. I have the complete nst pulley set and the crank pulley alone made one of the biggest differences in the car. I would recommend it to anyone with a f/i car. Also I would recommend getting speed-source motor mounts. I'd say the crank pulley and motor mounts were the best money I ever spent.

 

I have a ZPI V2 and am a little nervous since 2 major scion sites have different views. And our car hasn't had 5-10 years of r/d.

And I will be running the ZPI stage 1.5 turbo kit. DARK SIDE baby

 

So you have experience with both brands! Can you give us a quick comparison?

 

The ZPI pulley works but its only lightweight. I went NST cause they are size specific... meaning they have overdrive and underdrive. From my understanding the ZPI pulley is stock size but with weight reduction. NST has more combinations( underdrive and overdrive) being they specialize in pulleys

 

The only good things I've seen is from people who have had them on their car for 20,000-40,000 miles with no problems at all.. Just better track times.

The only bad thing I've seen is from 2 people on yoursciontc who act like whoever invented lightweight crank pullies killed their parents.. And then the people who jump on the bandwagon and really know nothing nor have any experience with crank pullies (yaknow, like yourself).

 

Annnnnd let's can these worms. You shouldn't point fingers at anyone when you won't accept the physics. Your point of view isn't backed by knowledge and learning, just observations. So yes, there have been no proven cases, or suspected cases for that matter, of a pulley causing premature failure on the 2AZ and I for one suspect that the engine in relatively stock form can't easily achieve a resonant vibration frequency, but if you're completely ignorant of the physics behind pulley-related destruction, then you have no more right to talk of it than anyone else who "jumped the band wagon."

And mattvs did more than just jump on a bandwagon, he went and got himself educated and/or used some basic high school knowledge to reason it out himself. Any introductory physics student worth an A or a B can tell you why an undampened pulley will tear your engine apart. The hundreds of tC owners running pullies now will tell you that their engines haven't blown yet. What do we have? A stalemate. No one has said anything new since the first argument started on solid crank pullies so why start arguing now.

So let's can these ____ing worms and be done with the same damn horse until someone can academically prove a solid crank pulley is harmless to the engine or experimentally prove that a pulley will tear it to bits.