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08-19-2012, 01:25 AM | #1 |
no show, no go :(
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nst underdrive pulleys lower gas mileage?
i already know they increase throttle response, and make decent power... but does it do those things at the cost of lowering gas mileage?
also, i noticed that nst is no longer a sponsored vendor here at yarisworld, and the pulleys are no longer in stock on microimageonline.com... have they been discontinued? does micro image carry a replacement product that performs just as well, if not better? |
08-19-2012, 02:17 AM | #2 |
Drives: 2017 L 3-door Join Date: Mar 2011
Location: Milwaukee, Wi
Posts: 161
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Increased performance = increased desire to drive hard = lower mileage. I'm sure if you drove with the same habits you would see a negligible difference.
NST doesn't make yaris stuff anymore. To my knowledge, they had poor customer service. In the meantime, micro image did their own crank pulley (sells for like $140 on the site). The microimage crank pulley is slightly lighter than the NST, and it's meatier in the center by the bolt (for increased durability). You'll also see that nst made water pump and alternator pulleys. They do offer weight reduction as well. But because of their cost, and less documented benefit, they're often left out of the discussion. |
08-19-2012, 10:11 AM | #3 |
ULTIMATE
Drives: 07 Yaris Turbo Join Date: May 2007
Location: Canoga Park, CA
Posts: 14,859
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Our new pulley is OEM size, but lighter than NST's underdrive pulley was. Best of both worlds.
http://shop.microimageonline.com/MI-...LWCP-Yaris.htm
__________________
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. |
08-19-2012, 12:03 PM | #4 |
Drives: Yaris Sedan 2009 Join Date: Sep 2010
Location: Quebec
Posts: 566
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will you produce water pump and alternator pulley Garm :D ? I would be willing to throw money if you need :)
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Interior:ALL red, black roof Exterior:RTX scorpion painted GOLD, side and rear visor, oem spoiler, MI mesh grill, Hella supertone horn, RS badge, Vios badge, CF pillar, Led mirror cover, fog light HID 3000k, Projector retrofit HID 8000K Performance :MI CrankPulley, Tein springs, UR and TRD bar, TURBO IN PROGRESS Audio : Pionner DEH-80PRS, HAT L1V2, PowerBass 1100.5X 5 channel amp |
08-19-2012, 12:04 PM | #5 |
Mr. 155 and climbing
Drives: Seriously Modded 07 Sedan Join Date: Jun 2006
Location: In The Hotbox
Posts: 4,742
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I have had the NST Underdrive pulley installed since 08. If I drive with FE in mind and not for power band then I get better FE than I did with the stock pulley by 1/2mpg. I would think it would be the same with the MI pulley. As previously stated anytime that you put on a part to give you a power increase you have to be disciplined enough to not drive it harder if you wish to get the best FE possible.
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Team Tiamat Racing on Facebook Youtube Channel: Team Tiamat Racing Class record holder in Land Speed @ 154.5mph for 1.5 mile and 145.5mph in the mile in the F (2.016 to 3.014 L), G (1.524 to 2.015 L), and H (1.016 to 1.523 L) classes. |
08-19-2012, 12:32 PM | #6 | |
no show, no go :(
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Quote:
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08-19-2012, 12:40 PM | #7 | |
Mr. 155 and climbing
Drives: Seriously Modded 07 Sedan Join Date: Jun 2006
Location: In The Hotbox
Posts: 4,742
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Quote:
NP...it is nice because it makes the engine rev more freely when you need it. Not gonna say that it will feel like a few pounds of boost tho
__________________
Team Tiamat Racing on Facebook Youtube Channel: Team Tiamat Racing Class record holder in Land Speed @ 154.5mph for 1.5 mile and 145.5mph in the mile in the F (2.016 to 3.014 L), G (1.524 to 2.015 L), and H (1.016 to 1.523 L) classes. |
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08-19-2012, 01:02 PM | #8 |
Drives: Yaris Sedan 2009 Join Date: Sep 2010
Location: Quebec
Posts: 566
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buy the one from Garm!!:P If you want it colored...make it anodized :)
__________________
Interior:ALL red, black roof Exterior:RTX scorpion painted GOLD, side and rear visor, oem spoiler, MI mesh grill, Hella supertone horn, RS badge, Vios badge, CF pillar, Led mirror cover, fog light HID 3000k, Projector retrofit HID 8000K Performance :MI CrankPulley, Tein springs, UR and TRD bar, TURBO IN PROGRESS Audio : Pionner DEH-80PRS, HAT L1V2, PowerBass 1100.5X 5 channel amp |
08-19-2012, 01:31 PM | #9 |
no show, no go :(
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08-20-2012, 11:56 PM | #10 |
The MI pulley works for me!
Installed it at between fill-ups (A). Hooned it for the next tank (B). Went back to my usual "no big rush" driving style (C)!
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my {(retired) ride} - {mi ssk: review, diy} - {mi lw cp: review, diy} - {foglight install} - {painted emblem: experiment, diy}
Last edited by jpmck03; 08-21-2012 at 12:00 AM. Reason: Inline attachment not working? |
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08-21-2012, 12:23 AM | #11 | |
ULTIMATE
Drives: 07 Yaris Turbo Join Date: May 2007
Location: Canoga Park, CA
Posts: 14,859
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Quote:
__________________
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. |
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