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04-17-2011, 07:37 AM | #613 |
Drives: 2007 Vios Join Date: Jul 2010
Location: Singapore
Posts: 15
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04-17-2011, 05:12 PM | #614 |
Super Moderator
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FTFY
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--[ FORUM RULES ]--[ SEARCHING TIPS ]--[ EYELIDS PICS ]--[ RBK SPOILER ]--[ BEST/WORST INVESTMENTS ]--
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12-04-2013, 04:25 PM | #615 |
Drives: NST CARS: S13 AE86 ANT10 AW11 Join Date: Dec 2006
Location: USA
Posts: 1,097
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Long time no see YW! As many of you know, and have on your cars, we set up design and development on Yaris pulleys back in 2007 and ran the original GB here: http://www.yarisworld.com/forums/showthread.php?t=3239 Unfortunately, due to lack of demand and slow market conditions, we had to stop mass production on our Yaris pulleys and make them available only as special order items, a couple years ago. We are considering a Dec/Jan group buy on a run of crank pulleys, at a discounted group buy price, if the community is interested. All pulleys would be the same lightweight aluminum we've always used and a special run of colors would be made available: red, blue, black, gold, purple. Would you guys and girls be interested in such an offer? |
12-04-2013, 05:31 PM | #616 |
What I thought I'd do was
Drives: 09 Yaris Sedan Join Date: Aug 2009
Location: Northwest Alabama
Posts: 1,140
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You just missed me, I just bought a complete set a couple days ago from CTScott.
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12-04-2013, 06:15 PM | #617 |
Drives: 08 Yaris Liftback S (RIP 07) Join Date: Apr 2007
Location: Fair Lawn, NJ
Posts: 1,378
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Mike I've been trying to get in touch with NST. I'll message you
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"It hurts more when its wet" |
12-04-2013, 09:10 PM | #618 |
ULTIMATE
Drives: 07 Yaris Turbo Join Date: May 2007
Location: Canoga Park, CA
Posts: 14,859
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Mike, have you made any substantial changes to your designs? There are quite a few broken NST pulleys (crank and water pump) out there now with the old design.
Maybe start here: http://www.yarisworld.com/forums/sho...ken+nst+pulley with some customer service.
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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. |
12-05-2013, 07:12 AM | #619 |
Yaris beginner
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12-05-2013, 08:40 AM | #620 |
Drives: 2010 black yaris Join Date: Oct 2010
Location: savannah, ga
Posts: 2,868
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my water pump pully has a really DEEP groove worn into the pulley from the belt. Is there maybe a exchange that could be done with broken or worn pulleys?
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-Derrick- "Racing is important to men who do it well. When you're racing... It's life. Anything that happens before or after, is just waiting." |
12-05-2013, 12:14 PM | #621 |
Drives: NST CARS: S13 AE86 ANT10 AW11 Join Date: Dec 2006
Location: USA
Posts: 1,097
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Every NST pulley has always come with a one year warranty. Out of thousands of pulleys we've sold, a few have had issues and those few have been replaced. We have tried to work with those outside the warranty periods as well. No one has ever been told, "sorry, you're out of luck" when the proper steps have been taken. Warranty claims and questions are best handled, and a mutual solution for both parties is always best reached, via one-on-one communication through email, not through internet forum posts.
I encourage customers with issues to please email us. Trying to hurt our reputation/sales on the forums only makes matters worse and makes it more difficult for us to try to assist you. Our design on our crank pulleys and water pump pulleys has changed slightly. Our new pulleys have holes in them, rather than slots. Holes seem to hold up slightly better in the long run, though there is not a huge amount of difference. There are thousands of NST customers running pulleys with slots in them since 2005. Are there a few cases where pulleys have cracked? Yes. Are there thousands of other very happy customers? Absolutely. If we move forward and the community wants to support our products, we would be happy to offer a group buy discount and move forward with this idea. If not, we will continue to offer pulleys on a special order basis, as we have over the past few years. Many thanks, best of luck with all your projects everyone! MIKE @ NST |
12-05-2013, 04:16 PM | #622 |
Mr. 155 and climbing
Drives: Seriously Modded 07 Sedan Join Date: Jun 2006
Location: In The Hotbox
Posts: 4,742
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My 10% underdrive crank pulley came to me in 2008 and has been great for me however the one question I do have is whether or not you have a pulley that can handle 7-8k rpm operation without coming apart? Right now my research and past experience by another member is that once you really get into the more extreme rpm range you are pretty much going to have to use a stock pulley because these "upgraded" pulleys cannot handle the stresses at that level. Thoughts?
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12-06-2013, 09:30 AM | #623 |
Drives: 2011 Yaris Hatchback Join Date: Sep 2013
Location: Manila, Philippines
Posts: 81
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Just received my CR Lite Crank Pulley on special order. Took awhile but really hoping it was worth the wait. Thank you NST...
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12-06-2013, 03:15 PM | #624 | |
Drives: 2('14+'07)MT 3d ,wHandCrWndws! Join Date: May 2009
Location: S.MontgomeryCnty,TX(HoustonMSA) '07=BayouBlue=300,125miles=OrigOwnr '14=ClassicSilvr=29,059miles
Posts: 4,839
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Quote:
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12-09-2013, 07:35 PM | #625 | |
Drives: NST CARS: S13 AE86 ANT10 AW11 Join Date: Dec 2006
Location: USA
Posts: 1,097
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Quote:
Your NST crank pulley should be able to withstand RPMs higher than the OEM range. I realize there was a case where one of these pulleys cracked on a higher RPM engine, but I also know based on my personal experiences with our pulleys on several high revving race engines of our own, our pulleys have stood the test of time on several race engines constantly banging limiter, at 8,000 rpm and above. The NST AE86 ran a Toyota 4AG turbo setup (OEM 4AG 100hp 7500rpm) making over 350hp and going past 8,000rpm from 2007-2012. Same setup, same NST crank pulley, no pulley failure. Our current Formula Drift AE86 runs a Honda F20 turbo setup (OEM F20 200hp 8500rpm) and makes over 500hp going past 9,000rpm. This has also been the case with other NST race cars, 4cyl, V8, n/a, turbo, supercharged, Toyota, Honda, Nissan, etc. Side Note: IF in theory, the NST crank pulley is not able to withstand higher than OEM RPMs, then neither should the OEM pulley be able to withstand such RPMs, being that the prevailing thought pattern has always gone down the road that, "the Toyota pulley is designed for this engine, the displacement, and the RPM range." Real world data and theoretical discussions are not always the same. Best of luck with all your projects! |
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12-09-2013, 07:37 PM | #626 | |
Drives: NST CARS: S13 AE86 ANT10 AW11 Join Date: Dec 2006
Location: USA
Posts: 1,097
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Quote:
Best of luck with all your projects! |
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12-09-2013, 07:50 PM | #627 | |
Drives: 2015 H Production Yaris Join Date: Oct 2009
Location: Debary, FL
Posts: 1,953
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Quote:
The OE pulley has been running solid at 7500rpm.
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2005-2008 SCCA Solo BS National Champion 2017-2018 SCCA H Prod National Champion |
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12-10-2013, 12:53 AM | #628 | |
Drives: NST CARS: S13 AE86 ANT10 AW11 Join Date: Dec 2006
Location: USA
Posts: 1,097
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Quote:
For street cars, our regular Underdrive Crank Pulley and NST CR-Lite Crank Pulley should be, and have proven over the years to be, sufficient. Best of luck with all your projects! |
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12-10-2013, 12:49 PM | #629 | |
Drives: 2015 H Production Yaris Join Date: Oct 2009
Location: Debary, FL
Posts: 1,953
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Quote:
After the NST failure I went back to the OE piece. Some time later we found the Beatrush unit, tried it on another motor and the Micro Image piece on our 2012. The Beatrush unit was much beefier, but ultimately still had an issue - I was very disappointed when we got it because we were given the impression it had an elastomer damper, but it did not, and it was nearly as heavy as the OE piece. Once we noticed a problem with the Beatrush (took almost a year) we went back to stock on both cars. It just wasn't worth the risk for us. I believe the issue may be accessory related. Not having a self tension belt system on the 1NZFE means there is nothing to help absorb the vibration once you eliminate the dampened crank pulley. I sure would like to see ATI or Fluidampr build one. Our NST (the exterior damage is road rash from when it popped off and passed me on the track): Beatrush, has a more material around the bolt area, but still has issues beyond 7300rpm: When Micro Image designed its pulley they addressed the cross section/mounting point concern, and still managed to build a very light pulley, but we never ran one long enough to see if it would let us down:
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2005-2008 SCCA Solo BS National Champion 2017-2018 SCCA H Prod National Champion |
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12-11-2013, 04:35 PM | #630 |
Drives: 08 Yaris Liftback S (RIP 07) Join Date: Apr 2007
Location: Fair Lawn, NJ
Posts: 1,378
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Not to hijack but I've been wanting to inquire about a fixed pulley for my blitz kit. I know one was made. And have had no luck trying to reach over the phone and haven't had a chance to email. Think you can help?
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"It hurts more when its wet" |
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