well, after boosting the car about a year ago i've decided to start modding the car again. just got my upper mount in the mail the other day and just placed my order for a b&m shifter. coming up in 2 weeks....rk sport crank pulley. all in all, i plan on dumping about $7,000 into the car. more updates to follow
Cost of mods: $2500
Number of headaches: Too many to count
Look on your face when you realize you got beat by a Cavalier: Priceless
I'm actually thinking about taking my crank pulley off and going back to stock. I think thats where alot of my vibration and engine noise is coming from. And my timing chain tensioner wont stop rattling. I just replaced it and now it rattles but just differently than before.
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this is the first bad thing i've heard about the pulley. thanx for the input. i still think i'm going to give it a shot and see how it turns out.
Cost of mods: $2500
Number of headaches: Too many to count
Look on your face when you realize you got beat by a Cavalier: Priceless
yea mine has i pitched humm like some1 putting their finger over a crystal lead glass.
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so is the noise good or bad or is it just a annoying?
I got a crank pulley and didnt have any kind of harmonic difference
1989 Turbo Trans Am #82, 2007 Cobalt SS G85
The noise doesnt hurt anything and im getting used to it. After I first rebuilt the engine for the first 1,000 miles every noise made me paranoid.
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No problems with an underdrive pulley except for that fact that there is no harmonic damping which can cause increased bearing wear...which if it is a 2.4L do we really need another variable leading to increased rod/main bearing wear?
-da chinchilla
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