WHICH CRANK PULLEY IS THE BEST FOR SCION TC
www.nonstoptuning.com
no ands if or buts about it. they DO pulleys. hit up NSTonAIM for more questions, ask for mike and tell him dave sent you
no ands if or buts about it. they DO pulleys. hit up NSTonAIM for more questions, ask for mike and tell him dave sent you
people have but unless you are racing or have a big system ..its not worth it performance wise. People are saying that the crank pully you deff feel a power increase. Im changing my flywheel so i think ill be plenty happy w/ the rev rate after that
no - the crank pulley and flywheel are both lighter then stock. The flywheel is going to let the car rev faster because it has to put less mass into motion and turn less mass. The crank pulley is going to free up horsepower that your car already has but is being lost due to rotational mass movement. The light flywheel is A LOT lighter and I think you get around 10hp and 10trq increase. Its not exactly 10 and ten but I think thats almost accurate.
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Joined: Nov 2005
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NST hands down. No ifs ands or buts.
NST offers more pulleys than all of the competition combined, they have the best prices, and the best quality.
They offer two crank pulleys. One is the underdrive (for n/a and turbo guys) and the other is the CR-Lite stock diameter (for TRD supercharged guys.)
Reducing rotating mass on your engine is a good thing. You are not creating more combustion or changing the way the engine works, but you are making it a lot easier for the engine to deliver the power that it makes.
Put on a pair of 20lb shoes on your feet and try a 100 yard dash. Then put on a pair of 4lb shoes on your feet and try a 100 yard dash. What do you think will happen? Anyone who tries to tell you that there will be no difference is a ...... !
And for people who try to tell you that "Toyota engineering and TRD engineering is better than so and so engineering" why do you guys go and buy products from other companies like Dezod, ZPI, Injen, AEM, HKS, etc. Isn't your stock Toyota stuff superior?
And why is a FACTORY backed race car using pulleys from NST?
http://www.nonstoptuning.com/pageSponsoredDG18.htm
I guess the factory backed race car and the TRD builders who work on it are stupid and you guys know better than they do. Right?
NST offers more pulleys than all of the competition combined, they have the best prices, and the best quality.
They offer two crank pulleys. One is the underdrive (for n/a and turbo guys) and the other is the CR-Lite stock diameter (for TRD supercharged guys.)
Reducing rotating mass on your engine is a good thing. You are not creating more combustion or changing the way the engine works, but you are making it a lot easier for the engine to deliver the power that it makes.
Put on a pair of 20lb shoes on your feet and try a 100 yard dash. Then put on a pair of 4lb shoes on your feet and try a 100 yard dash. What do you think will happen? Anyone who tries to tell you that there will be no difference is a ...... !
And for people who try to tell you that "Toyota engineering and TRD engineering is better than so and so engineering" why do you guys go and buy products from other companies like Dezod, ZPI, Injen, AEM, HKS, etc. Isn't your stock Toyota stuff superior?
And why is a FACTORY backed race car using pulleys from NST?
http://www.nonstoptuning.com/pageSponsoredDG18.htm
I guess the factory backed race car and the TRD builders who work on it are stupid and you guys know better than they do. Right?
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Joined: May 2005
Posts: 1,726
Turbos and the like are replacing parts that were not meant to keep your engine from grenading. When you add a turbokit or something that's equally drastic, you add some kind of engine management to keep functionality near stock level.
When you swap out a new pulley, you should look for something that maintains stock functionality and as it stands, none of the pullies out offer stock damping. Toyota engineering is superior and it's known that almost all mods will decrease engine life. Most mods try to keep as many things stock as possible.
The pullies out right now take away the damper, a piece engineers felt vital to the engine's life.
Aside from that, almost no one will argue that there's a difference between 20 and 4 lbs of weight but the difference between the stock pulley and the lightened pullies are less than a few lbs. Is it a boon? Yes. But consider how much faster you're going, weighed against the potential for catastrophe.
And again, reducing rotating mass does not add power. Reducing weight DOES NOT ADD POWER. I don't care what any dyno says; a dyno that shows a stock sized but lightened pulley, or a lightened flywheel, giving power gains, is being fooled because of the increased acceleration. Reducing weight makes you accelerate faster. But in no way does it add power.
If you got trouble getting your head around that, when a pulley and flywheel are both connected to the crankshaft, consider that getting a light flywheel is the same as getting a set of lightweight wheels. Do the lighter wheels make more power? They do not.
As far as a factory backed racer using these things, the factory backs the car but the factory isn't tuning the car. If it were a factory tuned production car, that'd be saying something.
I will say this one more thing though: as far as which pulley is best, to me, they're all equally bad but if you want power, NST's full underdrive set will actually get you a little power and a little more acceleration.
When you swap out a new pulley, you should look for something that maintains stock functionality and as it stands, none of the pullies out offer stock damping. Toyota engineering is superior and it's known that almost all mods will decrease engine life. Most mods try to keep as many things stock as possible.
The pullies out right now take away the damper, a piece engineers felt vital to the engine's life.
Aside from that, almost no one will argue that there's a difference between 20 and 4 lbs of weight but the difference between the stock pulley and the lightened pullies are less than a few lbs. Is it a boon? Yes. But consider how much faster you're going, weighed against the potential for catastrophe.
And again, reducing rotating mass does not add power. Reducing weight DOES NOT ADD POWER. I don't care what any dyno says; a dyno that shows a stock sized but lightened pulley, or a lightened flywheel, giving power gains, is being fooled because of the increased acceleration. Reducing weight makes you accelerate faster. But in no way does it add power.
If you got trouble getting your head around that, when a pulley and flywheel are both connected to the crankshaft, consider that getting a light flywheel is the same as getting a set of lightweight wheels. Do the lighter wheels make more power? They do not.
As far as a factory backed racer using these things, the factory backs the car but the factory isn't tuning the car. If it were a factory tuned production car, that'd be saying something.
I will say this one more thing though: as far as which pulley is best, to me, they're all equally bad but if you want power, NST's full underdrive set will actually get you a little power and a little more acceleration.
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Scikotics
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Joined: Jul 2006
Posts: 197
I have agency power lightweight crank. about the only thing I like about it is the fact that the engine revs faster (the sound is the good part) it doesn't amaze you at the power gain. It does make your revs drop faster too. which can get annoying because it sometimes feels like you are driving along in third and throw it in to second. not quite as drastic but it can be annoying. I probably wouldn't buy it again--oh well, live and learn.
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Joined: May 2005
Posts: 1,726
Originally Posted by Aeuronat
i was thinking about getting one too. Now how do you compare ZPI's crank pulley compared to NST's? wich will free up the most HP?
Stock sized pullies don't free up anything.
Stock sized lightened pullies are just lighter. Your engine spins up faster. That's it.