Fast Scion TBS and Crank Pulley set

[cryogenx]

i was looking on fastscions.com and came across this:

Scion 2AZFE Lightweight Crank Pulley / Throttle Body Spacer COMBO!! for 99.99


heres a pic:

http://www.fastscions.com/images/products/detail/DSC01708.JPG

what do you guys think is it worth the money anyone tried these on the tC or xB2? what other mods did you have... let me know cuz im thinking about buying them

[cryogenx]

nothing? Come on guys...

[Ed CMS]

I am a big fan of NST pulleys and stand behind them. Not a fan of the TBS. We have light weight crank pulleys for the xb2 from NST. NST pulleys are anodized and hardended so they are safe unlike many other manufacturers. I dont know anything about this specific product, but I would reccomend NST.

[THansenite]

I also would only put NST pulleys on my car. You can really feel the quicker revving nature when you install all 3 pulleys. A good friend of mine got this package and I installed the pulley for him. He noticed a difference with the pulley. The throttle body spacer does nothing though. It is a show piece and there has been absolutely no proof to show that it does anything on our cars. I have asked the manufacturer for dyno info but they never give it. If you get the package, do it for the pulley, however, I'd go with NST as they have proven themselves and been in the lightweight pulley business for a long time.

[kuo34]

I like NST products (have the shift cable bushings from them), but went with Agency Power. Geoffery over at Nurspec vouches for them and I trust him with my car. I had a discussion with a friend of mine that's an engineer about dampers (or whatever you want to call the rubber on a pulley) and the gist of it was that a crank pulley replacement without the damper would be fine as long as the replacement was well balanced and high quality. So . . . a high quality solid crank pulley is the way to go. The one you've got listed would have me wary. I'm a firm believer in you get what you pay for. Spend the extra green and go with NST or A-P (or any other reputable crank pulley manufacturer). Good luck with your modding!

[THansenite]

Good input kuo.

I have actually had pretty extensive chats with Mike from NST about the logistics of these pulleys as well. People always throw out the vibration issues and that these pulleys will cause engine damage without having any hard evidence. They just repeat what they have heard. Mike and I chatted for a couple of hours and he showed me proof of why these pulleys are fine to use on our engines. The guy really knows his stuff.

[kuo34]

Agreed on the lack of hard evidence that the solid pulley will cause damage. A lot of threads turn into flame wars and the evidence, if any, gets lost. I've read a couple threads about heavily built/boosted engines coming apart and a solid crank pulley was one of the parts on the engine at the time it came apart. I'd suspect the boost being the cause of destruction rather than the lightweight pulleys involved.

The pulley IS a rotating mass so an improperly balanced pulley will cause vibrations and wear on your engine, much like an improperly balanced wheel will cause undue wear on your axle and parts further up the drivetrain.

So yeah, a lot of information to take in. There are folks that have done much more r&d on pulleys than I'll ever read about (like the aforementioned personnel from NST). Will it cause undue wear and tear on your engine? My take is it'll damage your engine less than you putting your foot into it. While we don't have much quantitative (or truly objective) evidence on the wear and tear a solid pulley *might* cause, we do have drivers across several different i4 platforms, boosted and n/a, that run solid and lightweight crank pulleys and have had no problems from the pulleys for hundreds of thousands of miles. I've only read of tC's running problem free after pulley install up in the 70k range after install, but I'm sure there are some that have gone further.

Also note that no matter how much you spend on your crank pulley, you're going to need access to an impact wrench to get the bolt off. Go ahead and factor in the cost of tools there.

I think I've said enough. Let me go put some Nomex on as I'm sure somebody out there is going to be upset with what I just posted.

[THansenite]

Also note that no matter how much you spend on your crank pulley, you're going to need access to an impact wrench to get the bolt off. Go ahead and factor in the cost of tools there.


You don't need impact tools to take the pulley off. One of my installs was without an impact. It is a little harder using your own muscle rather than using air tools, but you can do it.

[kuo34]

Perhaps there's a technique I'm missing? I tried putting the transmission in gear and with a breaker bar but no joy there. A longer cheater bar? I'm a big fan of using muscle instead of impact tools but I might just not have the muscle for it, and I didn't feel comfortable using the "brace the bar against the ground and crank the engine" method (and Makita CPO was having a reconditioned tool sale so I got an impact wrench cheap).

[THansenite]

Oh yea, I would never crank the car like I have seen some people do. That is an accident waiting to happen. When I did it with a bar, I just gave it a good jerk and it popped the bolt loose. It was a newer car though. I highly doubt I would have had the same results on my car. Using something to lock the pulley in place would help though if you plan on using muscle.

[kuo34]

I considered using the "good jerk" (tee hee hee) method, but erred on the side of not wanting to tear up any muscles. Getting too old to do that kind of stuff. The toyota manual shows a SST to keep the pulley from spinning (hence the two drilled/tapped holes in the oem pulley), and I've seen some homebrew fabs for such a tool. I thought it was a great excuse to buy an impact wrench. Glad to hear that just using excessive force works.

[TinCan]

NST all the way... also that TBS is a waste of time...and money!

[Pampito]

I have a TBS and it feels like it gives u better boost but the feeling goes away when u get used to it. Not sayin it increases HP, i never got to duno my tC b4 the SC was put on, did make my intake sound like a turbo though. (Airaid Poweraid TBS)



i was looking on fastscions.com and came across this:)

Scion 2AZFE Lightweight Crank Pulley / Throttle Body Spacer COMBO!! for 99.99


heres a pic:

http://www.fastscions.com/images/products/detail/DSC01708.JPG

what do you guys think is it worth the money anyone tried these on the tC or xB2? what other mods did you have... let me know cuz im thinking about buying them

[kuo34]

Glad to hear the pulley worked out for you Pampito. I'm still wary of parts that just don't cost very much. It isn't an automatic indication of a poorly constructed part, but it does raise a red flag for me.

[Pampito]

Glad to hear the pulley worked out for you Pampito. I'm still wary of parts that just don't cost very much. It isn't an automatic indication of a poorly constructed part, but it does raise a red flag for me.


No no no, i dont have the pulleys yet lol. I have the Throttle Body Spacer thats what i was talkin about at top. That photo was his, this is my TBS i have installed

http://us.st12.yimg.com/us.st.yimg.com/I/hopup1_2051_1671818

[scikoticWARD08]

so where can we get this nst pulley? i also figured it would be a easyway to gain some quick hp without doing major upgrades

[Pampito]

http://www.nonstoptuning.com/

[kuo34]

Sorry I misread Pampito!