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Old 06-14-2007, 04:36 PM   #1
Astroman
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NST, are there any plans for a group buy on the next pulley set? If there is, count me in!
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Old 06-14-2007, 06:56 PM   #2
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Yep count me in too! By the way since all the pulleys are Lite pulleys, that means everything is the same as stock size pulleys but much lighter?
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Old 06-14-2007, 07:59 PM   #3
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Yep count me in too! By the way since all the pulleys are Lite pulleys, that means everything is the same as stock size pulleys but much lighter?
http://www.nonstoptuning.com/infoPageLite.htm
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Old 06-22-2007, 01:38 AM   #4
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Sorry if this is a basic knowledge. Is that the Water pump pulley? If it is then it must weighs a lot, and upgrading it to NST means a significant reduction?

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Old 06-22-2007, 02:21 PM   #5
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curik,

That is the a/c compressor pulley. The water and alternator pulleys are located just above it. It certainly does weigh a lot. Other than the crank pulley that is the largest pulley on the 1NZ. If you are planning on tracking the car, the solution that would bring the highest power gain would be to outfit your engine with NST pulleys, find the proper size belt and bypass the a/c compressor altogether. For track purposes it is only leeching your power. Swapping the belt out would only take a matter of minutes, and the benefits of not running your a/c compressor when racing are very tangible. You will feel a difference.
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Old 06-22-2007, 07:22 PM   #6
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Thanks for the excellent explanations Chino! Since the A/C pulley looks massive, why doesn't NST make a replacement for it as well? I mean, it looks more parasitic than the WP or ALT pulleys together.
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Old 06-22-2007, 07:38 PM   #7
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correct me if I'm wrong, but the A/C pulley is on a clutch that is directed by the ECU when to turn "on" and "off"? I think this makes it problematic to re-engineer for aftermarket use.
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Old 06-22-2007, 07:49 PM   #8
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You're not wrong, but NST has already said they are not making a A/C pulley. The pulley set will be for the alternator & water pump. Their post is on here somewhere about it.
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Old 06-22-2007, 08:18 PM   #9
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ive not seen a lot of performance car with A/C ... lol
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Old 06-24-2007, 01:33 AM   #10
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Track only race cars do not have a/c systems at all. And like others have said, if you want to build yourself a hardcore street car you will eventually end up taking your a/c out to save a few pounds of dead weight.

I have the NST crank pulley now and I'm anxiously waiting to get the alternator and water pump pulleys later this summer. I don't think I could ever go without my a/c during the summer heat!
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Old 06-24-2007, 05:51 AM   #11
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We are going off topic slightly here, I was wondering if there are issues for making a lightweight A/C pulley that make it not possible to do. It looks like the 2nd heaviest pulley in the whole system and why doesn't NST consider making it at all?
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Old 06-24-2007, 10:11 AM   #12
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I want my A/C to blow a whole 2mph faster on max AC speeds!!!

I demand Lighweight A/C pully now!

Actually I dont see why not, it would just mean more $$ in the bank for NST!!
I would buy, but the point is not to use A/C while in High Performance use.
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Old 09-03-2007, 02:33 PM   #13
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Originally Posted by Sabretooth View Post
I want my A/C to blow a whole 2mph faster on max AC speeds!!!

I demand Lighweight A/C pully now!

Actually I dont see why not, it would just mean more $$ in the bank for NST!!
I would buy, but the point is not to use A/C while in High Performance use.
I live in the desert and my a/c is ALWAYS on. I think if this piece were to be built, it'd motivate me to do the entire pulley set. :)
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Old 09-03-2007, 09:03 PM   #14
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I live in the desert and my a/c is ALWAYS on. I think if this piece were to be built, it'd motivate me to do the entire pulley set. :)
Such a pulley would cost more than three times that of the crank pulley. The OEM a/c pulley has a clutch mechanism built into the pulley and unfortunately this design is very costly.

1. I would not feel comfortable asking you to fork over $350 for one single pulley which will not improve your performance.

2. I would not feel comfortable building 100 pieces when 97 of them would sit on the shelves for the next 3 years

I suggest spending your $350 on the pulleys we currently offer, and saving the other $350 for other goodies which will make your car much more enjoyable. Better yet, save it in your "what will NST build next" savings account.
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Old 06-24-2007, 11:15 AM   #15
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I agree with you Sabretooth, but sometimes we want to maximize performance with the least sacrifice in comfort. So if NST makes the A/C pulley, putting a whole pulley kit on a completely stock yaris will be a significant addition in performance and fuel economy. However there will always be trade off like increase in vibration, but this is minor and I am sure it is worth the trade off.
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Old 06-24-2007, 01:26 PM   #16
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do a search. they allready told us why they have not planned to built a/c pulley
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Old 06-25-2007, 07:24 PM   #17
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Quote:
Originally Posted by Sabretooth View Post
I want my A/C to blow a whole 2mph faster on max AC speeds!!!

I demand Lighweight A/C pully now!

Actually I dont see why not, it would just mean more $$ in the bank for NST!!
I would buy, but the point is not to use A/C while in High Performance use.
Quote:
Originally Posted by curik View Post
We are going off topic slightly here, I was wondering if there are issues for making a lightweight A/C pulley that make it not possible to do. It looks like the 2nd heaviest pulley in the whole system and why doesn't NST consider making it at all?
Quote:
Originally Posted by curik View Post
I agree with you Sabretooth, but sometimes we want to maximize performance with the least sacrifice in comfort. So if NST makes the A/C pulley, putting a whole pulley kit on a completely stock yaris will be a significant addition in performance and fuel economy. However there will always be trade off like increase in vibration, but this is minor and I am sure it is worth the trade off.
If one is so concerned about shaving weight the A/C compressor would be gone, the A/C pulley it's self does not weigh much it is the cluch that has all the weight. Even if there was a lightened AC pulley you would be adding the weight right back on by reinstalling the clutch so the AC will function properly, and has anyone else here changed a compressor clutch with out breakin open the system? it does not look fun on our car... A lightened AC pulley would be a useless mod, like color matched piston rods
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Old 06-25-2007, 07:30 AM   #18
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I must be a noob at searching. Mind to provide a link oxyg3ne?
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