hey everyone i just have a simple quick question about the pulley
how much of a difference in performance is there with just the underdrive pulley compared to the set?
numbers would be nice
sorry if this was already talked about but i searched and didnt come up with the answer

 

When I installed my Agency CP, I would say I felt about a 5-7 hp difference. IMO I wouldnt put on the full set of pulleys. If you like AC and / or have an amp/sub, dont get the set. Your AC isnt as good with the lighter pulley and your alternator isnt as efficient. So if you live in a hot place and have extra electronics, the whole set isnt a good idea. The crank pulley in general is a great mod though.

 

thanks man yea with this florida heat i will definately be needing the a/c to be at its best

 

I just put on the UD pulley only and I love it..not 10whp but definitely noticeable by the butt dyno

 

I have the full NST set. A/C is not hindered... Sub/Amp run fine. Not sure what the hell kirk212 is talking about.

The NST designed theirs in a way so that they can be used together. Their crank pulley is a 20% underdrive..... pair it with the 20% overdrive alternator pulley and a lighter water pump pulley and it runs just fine.

 

I guess I just like to make comments without any facts to back them. Because I have no experience with any of these types of things...... Sorry Ive only been working on cars since I was 16. I guess thats not enough experience to know anything about under drive pulleys.

 

NST www.NonStopTuning.com Pulleys and kits are VERY different when compared to traditional pulley kits.

The NST kits have been designed and tested on both street and track cars. The full NST kit will run the alternator at, or better than, the OEM Toyota pulleys. In fact, when people with audio/video systems have dimming lights or weak batteries, they come to us to buy our alternator pulley to help cure these problems. No weak batteries, dimming lights, etc when NST Pulleys are used.

We ship these pulleys to customers all over the planet. NST is based out of Houston TX (very very hot and humid summers) and many of our customers post on these forums. No one (from TX, CA, FL, etc etc) has EVER posted anything negative about their a/c system when an NST Pulley Kit has been used.

Please visit the following forums and search for a few minutes regarding NST's performance, customer service, and prices. Only positive comments will be found...

www.ScionLife.com
www.YarisWorld.com
www.8thCivic.com
www.Club4AG.com
www.86garage.com
www.houston240sx.com

Good luck and have fun with all your projects everyone

 

not to be mean but can someone answer my original question

 

Roughly 70% of the gains that are to be had come from the crank pulley. The accessory pulleys also provide further weight reduction, which in turn leads to more throttle response, better accessory output, better fuel economy, and better hp and tq delivery.

There is much more info that can be found around these forums and you can also look for us on AOL Instant Messenger at the screen name "NSTonAIM" or give us a call Mon-Fri should you have any further questions. We would be more than happy to chat with you in great detail regarding any questions you may have.

Thanks again for your interest in our site and products, we certainly do appreciate it. Good luck and have fun with your project!

 

thanks