Underdrive Pulley Set for 2.2L/2.4L
02-15-2007, 06:08 PM
#27
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Yes you can tell the difference, ( I own a 5spd) the difference was more noticeable then the intake, gas milage increased then settled back, I have no regrets and my mechanic said it only took him a little less then an hour to install, for the crank and an hour for alt
02-15-2007, 07:53 PM
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Wow, can't believe i missed this thred SO
1. Am i the only one with lighten pullies?
2. I hear lighten is way better then undriven
3. Talk to -Md-HHR on chevyhhr.net he is making the pullies
4. I bought my lighten crank pullie from z-spec and the alt pully from -md-hhr
5. Didn't know i missed it i have pics of the stock crank pully and gezus its heavy cast iron
See my message
1. Am i the only one with lighten pullies?
2. I hear lighten is way better then undriven
3. Talk to -Md-HHR on chevyhhr.net he is making the pullies
4. I bought my lighten crank pullie from z-spec and the alt pully from -md-hhr
5. Didn't know i missed it i have pics of the stock crank pully and gezus its heavy cast iron
See my message
02-15-2007, 08:32 PM
#30
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im interested in these. How hard is the removal of the old pulleys and installation of the new ones? Also anyone have an idea of how much they will run?
EDIT: The z-spec lightweight crank pulley runs $100
EDIT: The z-spec lightweight crank pulley runs $100
02-18-2007, 03:30 PM
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02-18-2007, 05:18 PM
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First most of the power gain is coming from weight not size, second i do recomend the lighten alt pully AFTER you get the crank not alone because the diff between the two is minimal the lighten alt pully complements the crank pully. They said they had to take off the alt to put the alt pully on and charged me and hour and a half 65.00 for it. THe crank pully was 45.00 nothing major take off a wheel use the pully tool then pop it out then back in.
I HAVE read good things and bad things aout z-spec so be warned they did me proper but i could have been lucky
I HAVE read good things and bad things aout z-spec so be warned they did me proper but i could have been lucky
02-18-2007, 05:51 PM
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02-18-2007, 05:59 PM
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What an *******, sike just playing but hey i dont know much more then what i read here so if everybody talked about there being a flux capcitor i would take it to a shop and SAY: "damnit i know what your telling me but i am telling you i want to upgrade my flux capacitor!"
02-18-2007, 06:17 PM
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I don't suggest going the route of lighter/under drive pullies.
Chances of you damaging the components that the pullies are driving are higher.
But have fun, work on those airbags cobalt kid
Chances of you damaging the components that the pullies are driving are higher.
But have fun, work on those airbags cobalt kid
02-18-2007, 06:19 PM
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nah since the dealership that did it the first time, no one else wanted to but now they fixed what they did since i went to a bunch of other dealerships and they said to take it there and if they didnt doi it they would get reported, they did it again with no questions this time.
02-18-2007, 06:41 PM
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Upon my extensive reasearch i found that this is not true.....How ever if you plan on going beast style to lets say 300whp you are probably going to damage something this is because the stock unit is set with its damper to help balance the crank pully.
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