NST crank pulley

[ttr125fan09]

i just ordered one from micro image today and i know there is quicker throttle response, but is the any hp gains, just wondering...

[MUSKOKA800]

It's an efficiency upgrade (lighter weight, less load) not a power adder.

It is much easier to stall a manual Yaris (finicky clutch combined with low torque at engagement rpm) with an NST pulley due to less rotation enertia. For the same reason the R's spin up faster once you're underway, into the powerband and going through the gears.

[why?]

as weird as this sounds, i haven't stalled my Yaris since putting on the pulley kit, and I always stall the thing with that horrid clutch.

And as was said, it won't add any power, it will remove weight, which frees up power to go to the wheels.

[ttr125fan09]

sounds like a good piece, from what i read its not that hart to install.

[cali yaris]

as weird as this sounds, i haven't stalled my Yaris since putting on the pulley kit

Me neither. The motor will also DEcelerate more quickly with a lighter pulley.

[MUSKOKA800]

sounds like a good piece, from what i read its not that hart to install.

It's a quick no-brainer.

[thebarber]

if you don't plan for a supercharger, get the underdrive crank pulley....it has better benefits than the stock-sized lightweight pulley (i know from experience)

[why?]

since i'be been driving to fall river every day( about an hour and a half) I can really say the pulley set helps me get better gas mileage. The car seems to just float at certain revs when I take my foot off the gas. We'll see how my next tank of gas goes, but my last one i hit 38 mpg with ac on and averaging 70 or so on the highway.

[ttr125fan09]

sounds like a real good peice mpg and some performance.... cant wait to install

[cali yaris]

@ the barber: we don't know when NST is going to make more of those.

[ttr125fan09]

got it today, super fast shipping, cant wait to install

[thebarber]

@ the barber: we don't know when NST is going to make more of those.

more underdrive pullies? i didnt realize they were out of stock...

[goliath1812]

yup, Garm has them backordered and NST sent me an e-mail saying they have no ETA of making any new ones. :(

[Crackerballer]

yup, Garm has them backordered and NST sent me an e-mail saying they have no ETA of making any new ones. :(


FUUUUUUUUUUUUUUUUU

Edit* They have them listed as in stock on their website...

[Jason@SportsCar]

It would be nice if they were re-engineering it with a little more material around the crank bolt.

[cali yaris]

^ working on it. :wink:

[Jason@SportsCar]

^ working on it. :wink:

Wish I would have known that before I spent way to much on this one.

https://lh5.googleusercontent.com/-eTqnuCmlyU4/TjgtLhy-iRI/AAAAAAAAAxk/HiPziwILgww/s1152/2011-08-02_09-35-35_539.jpg

[cali yaris]

That's pretty. Yeah, but you have it now, and I'm only in R&D mode, so it's all good.

[ttr125fan09]

got it on today, had to do it by hand though, took 30 mins and all i can say is wow, the throttle response is so much better

[ttr125fan09]

oh yah picture...

http://i909.photobucket.com/albums/ac291/ttr125fan09/yaris/IMG_20110803_075603.jpg

[malibuguy]

what about crank harmonics?

[bzinn 1]

Crank harmonics can indeed be somewhat effected........so far I have not heard of any engine failures from intstalling,that includes people on Scionlife,puget sound toyota owners,supra forum,corolla forum,yaris forum,club xb,Honda forums,nisan forums,etc...many cars using them for over 75000 miles.....not a issue at all.Talked to the guys at NST and they answered all my questions....give them a call ,they are very helpfull and will truthfully answer any question.....

[yaris_trd]

HEY WHAT PULLEY IS THAT ? 10 % UNDERDRIVE OR LITE CRANK PULLEY ???

[ttr125fan09]

just the lite crank, its pretty good but the 10% would have been better