Pulleys, pulleys, pulleys! - Toyota Yaris Forums

Deltasix · 03-18-2009, 04:37 PM

I'm looking at picking up some NST Pulleys (probably from Micro Image) and was just wondering on people's opinion on the benefits of replacing just the crank pulley vs crank and water pump vs crank, water pump, and alternator.

Also people's opinion of going with underdrive pulleys, vs, umm... none underdrive pulleys on the yaris.

Thanks a bunch for any info.

CASTREX · 03-18-2009, 04:58 PM

This exact post has been answered a few times before.

But...

Underdrive > Regular Light weight

Crank Pulley > Alt & wp Pulley

Unless you are planning on going supercharged... go for the underdrive crank pulley. That's the first one on the list.

Then if you have the $$ you can get the Alt & wp Pulleys. Those are a nice complement plus they will make you engine bay look nicer...

And can't go wrong buying @ microimage...

Deltasix · 03-18-2009, 05:16 PM

Ah yes, the old thread seems to have reappeared.

Thanks for the bit of info, time to read 21 pages of it in the other thread!

cali yaris · 03-18-2009, 08:55 PM

Quote:

Underdrive > Regular Light weight

Crank Pulley > Alt & wp Pulley

That says it all. As much as I would like to sell complete sets, the crank pulley is the mod you will really feel.

PETERPOOP · 03-18-2009, 10:13 PM

The underdrive pulley is the mod you really feel! Crank is only good if you are supercharged.

cali yaris · 03-18-2009, 10:16 PM

^ LOL. The underdrive pulley IS a crank pulley. Just smaller.

Just keepin' it clear...

PETERPOOP · 03-18-2009, 10:20 PM

True true! I always refer to the underdrive pulley as "the underdrive pulley", but always called the "crank-lite" pulley the "crank Pulley." What's wrong with me!

YarisSedan · 03-19-2009, 12:10 AM

The other pulleys are mainly engine dress up. Expensive engine dress up.

NonStopTuning · 03-19-2009, 12:39 AM

All NST Pulleys are roughly 70% lighter than the OEM pulleys they replace.

The more weight reduction, the better the overall throttle response, increase in acceleration, and in fuel efficiency.

The majority of our customers buy our Underdrive Crank Pulley first because they think to themselves, "can a pulley swap actually be that good?!" They come back a few months later to pick up our accessory pulleys after they experience the benefits of the crank pulley.

More info... http://www.yarisworld.com/forums/showthread.php?t=4737

Good luck and have fun with all your projects!

YarisSedan · 03-19-2009, 01:27 AM

Okay now i have to buy a crank pulley now =). Well maybe in a few weeks i need to space my mods out. Been doing too many as of lately.

jkuchta · 03-19-2009, 03:28 AM

I have the underdrive pulley, and like it a lot.

YarisSedan · 03-19-2009, 11:06 AM

The only thing really holding me back right now is my car is still new. And i drive it really hard. If anything were to happen to it its covered under warrenty right now. Once i throw on some pulleys they can try to claim i put on a aftermarket crank pulley which contributed to engine damage. Even if it didnt.

regal · 03-19-2009, 12:58 PM

Doesn't changing the pulley affect the engine balance? There has to be some drawback or Toyota engineers would have done this in the first place, no ?

Shroomster · 03-20-2009, 02:17 PM

Quote:

Originally Posted by regal

Doesn't changing the pulley affect the engine balance? There has to be some drawback or Toyota engineers would have done this in the first place, no ?

no, this kind of question always appears. the fact is, unless the manufacturer of said product gives either a 'donation' or the likes to the car manufacturer,or the manufactureres both want to test out a product on a standard issue car, or the car manufacturer wants to make a performance version of the car. most of the time you may see some dealerships with a special vehicle equipped to the teeth with mods. its for sales and sponsors and promos....

cali yaris · 03-20-2009, 05:39 PM

Quote:

Doesn't changing the pulley affect the engine balance? There has to be some drawback or Toyota engineers would have done this in the first place, no ?

No. Toyota engineers are responsible for producing a +/- $12,000 car, so they leave out a lot of nifty stuff. Like a center console.

No one, period, has ever had an issue with NST aftermarket pulleys.

NonStopTuning · 03-21-2009, 11:10 PM

Quote:

Originally Posted by cali yaris

No. Toyota engineers are responsible for producing a +/- $12,000 car, so they leave out a lot of nifty stuff. Like a center console.

No one, period, has ever had an issue with NST aftermarket pulleys.

Thank you Garm,

More info... http://www.yarisworld.com/forums/showthread.php?t=4737

03-18-2009, 04:37 PM	#1
Deltasix Drives: '07 Liftback: Work in Progress Join Date: Feb 2009 Location: CT Posts: 187	Pulleys, pulleys, pulleys! I'm looking at picking up some NST Pulleys (probably from Micro Image) and was just wondering on people's opinion on the benefits of replacing just the crank pulley vs crank and water pump vs crank, water pump, and alternator. Also people's opinion of going with underdrive pulleys, vs, umm... none underdrive pulleys on the yaris. Thanks a bunch for any info. __________________ "The basis of optimism is sheer terror."

03-18-2009, 04:58 PM	#2
CASTREX Who said Yaris was slow? View User's Garage Drives: Yaris T-Sport 2008 Join Date: Nov 2006 Location: Costa Rica Posts: 1,287	This exact post has been answered a few times before. But... Underdrive > Regular Light weight Crank Pulley > Alt & wp Pulley Unless you are planning on going supercharged... go for the underdrive crank pulley. That's the first one on the list. Then if you have the $$ you can get the Alt & wp Pulleys. Those are a nice complement plus they will make you engine bay look nicer... And can't go wrong buying @ microimage... Last edited by CASTREX; 03-19-2009 at 04:17 PM.

03-18-2009, 05:16 PM	#3
Deltasix Drives: '07 Liftback: Work in Progress Join Date: Feb 2009 Location: CT Posts: 187	Ah yes, the old thread seems to have reappeared. Thanks for the bit of info, time to read 21 pages of it in the other thread! __________________ "The basis of optimism is sheer terror."

03-18-2009, 10:16 PM	#6
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	^ LOL. The underdrive pulley IS a crank pulley. Just smaller. Just keepin' it clear... __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

03-19-2009, 12:10 AM	#8
YarisSedan Drives: 08 Yaris Sedan Join Date: Oct 2008 Location: California - Bay Area Posts: 2,773	The other pulleys are mainly engine dress up. Expensive engine dress up. __________________ http://www.cardomain.com/ride/3210549

03-18-2009, 10:13 PM	#5
PETERPOOP View User's Garage Drives: 08 white liftback Join Date: Oct 2008 Location: Oahu Posts: 3,674	The underdrive pulley is the mod you really feel! Crank is only good if you are supercharged.

03-18-2009, 10:20 PM	#7
PETERPOOP View User's Garage Drives: 08 white liftback Join Date: Oct 2008 Location: Oahu Posts: 3,674	True true! I always refer to the underdrive pulley as "the underdrive pulley", but always called the "crank-lite" pulley the "crank Pulley." What's wrong with me!

03-19-2009, 12:39 AM	#9
NonStopTuning Drives: NST CARS: S13 AE86 ANT10 AW11 Join Date: Dec 2006 Location: USA Posts: 1,097	All NST Pulleys are roughly 70% lighter than the OEM pulleys they replace. The more weight reduction, the better the overall throttle response, increase in acceleration, and in fuel efficiency. The majority of our customers buy our Underdrive Crank Pulley first because they think to themselves, "can a pulley swap actually be that good?!" They come back a few months later to pick up our accessory pulleys after they experience the benefits of the crank pulley. More info... http://www.yarisworld.com/forums/showthread.php?t=4737 Good luck and have fun with all your projects! __________________ MIKE @ NST www.NonStopTuning.com

03-19-2009, 01:27 AM	#10
YarisSedan Drives: 08 Yaris Sedan Join Date: Oct 2008 Location: California - Bay Area Posts: 2,773	Okay now i have to buy a crank pulley now =). Well maybe in a few weeks i need to space my mods out. Been doing too many as of lately. __________________ http://www.cardomain.com/ride/3210549

03-19-2009, 03:28 AM	#11
jkuchta View User's Garage Drives: 2007 Yaris hatch (red) Join Date: Sep 2007 Location: L.A. Posts: 557	I have the underdrive pulley, and like it a lot.

03-19-2009, 11:06 AM	#12
YarisSedan Drives: 08 Yaris Sedan Join Date: Oct 2008 Location: California - Bay Area Posts: 2,773	The only thing really holding me back right now is my car is still new. And i drive it really hard. If anything were to happen to it its covered under warrenty right now. Once i throw on some pulleys they can try to claim i put on a aftermarket crank pulley which contributed to engine damage. Even if it didnt. __________________ http://www.cardomain.com/ride/3210549

03-19-2009, 12:58 PM	#13
regal Drives: 09 Yaris 3 Dr White LB Join Date: Mar 2009 Location: PA Posts: 432	Doesn't changing the pulley affect the engine balance? There has to be some drawback or Toyota engineers would have done this in the first place, no ?

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