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09-18-2015, 11:22 PM | #1 |
conundrum562
Drives: Toyota Yaris 2007 Type S Join Date: Jun 2010
Location: Long Beach, CA
Posts: 78
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MICRO IMAGE - Light Weight Crank Pulley
So before I added the light weight crank pulley I was idling high like at 2000RPM+ now that I've installed the pulley it dropped it back down to normal.
As far as performance goes, it seems to lighten up the throttle. When I step on it lightly it speeds up normally but quicker, I have the S/C boost set on medium so it doesn't kick in until I step on it a little harder at around 4000rpm. The only thing is it doesn't seem to pull as hard as before when I had the old stock pulley... I dunno anyone else notice any differences or better performance let me know?
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09-19-2015, 10:10 AM | #2 |
1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
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It's not an under drive pulley is it? That would lower the rotational speed of the supercharger.
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09-19-2015, 12:30 PM | #3 |
Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008
Location: Georgetown, Ontario, Canada
Posts: 5,740
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MICRO IMAGE - Light Weight Crank Pulley
MI didn't commission an under drive pulley.
Sent from my iPhone using Tapatalk
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09-19-2015, 12:50 PM | #4 |
Pumpman
Drives: 2019 Kia Soul EV Base Join Date: Dec 2014
Location: Langley, BC
Posts: 434
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I'm surprised a lightweight pulley can lower your iddle speed. I've never heared of that before.
You're right, the car it should accelerate the same way as a before, only it'll reach that high RPM quicker. That's the main performance benefit. Which gear/rev range does it not pull as hard? Does it pull less? Keep in mind, this type of pulley will not create HP.
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"I would rather loose by a mile in a car I built myself, then win by an inch in a car that was built for me." - Moog |
09-19-2015, 02:22 PM | #5 | |
conundrum562
Drives: Toyota Yaris 2007 Type S Join Date: Jun 2010
Location: Long Beach, CA
Posts: 78
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Quote:
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--------------------------------------------------------------- BLITZ S/C|MICRO-IMAGE CRANK PULLEY|NST ALT;WATER PUMP PULLEY|BLITZ SUS SHORT RAM;HEADERS;AXLE-BACK EXHAUST|2.25 PIPING|1ZZ INJECTORS|OPTIMA YELLOW-TOP|GTSPEC FRONT STRUT;MID LOWER CHASSIS;4 PNT FRNT LOWER BRACE|WHITELINE REAR SWAY;BUSHINGS|TANABE FRNT SWAY|TRD LOWERING SPRINGS/SHOCKS|R1 CONCEPT DRILLED & SLOTTED ROTORS|EBC GREEN PADS|THROTTLE SPACER|XTREME PERFORMANCE CHIP MOD |
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