well guys i found a crank pulley made for the cavy,and ima bite the bullter and try it...ima order it friday and see how it works, now it is a lightwheigh crank pulley so it should add, guess....letting u guess....0hp, thats right 0, why woudl i spend the money on it than?...think...will let me rev quicker, there fore gettign power wuicker, and letting me get down the track quicker, so i will let you guys know how it goes

ps:made for the ecotec in the cav=same one in ours


ima order that friday

 

Thanks for being the tester for us. You are much braver than most on here.

 

subscribed

 

me and section8cav were discussng the possiblities of this working...so i will buy the pulley friday and wait for it to come in, the install will be done at the a dealership, so it should be in pretty quick, will take loads of pics, and will def. write a how to

 

umm they have one for the balt.. click on cobalt link here ->http://www.z-spec.com/catalog.htm

 

Has anyone tried this yet? For $40, I will probably try this out sometime in the summer if it has good reviews. The crank pulley in our cars isn't a harmonic balancer, is it?

 

whoa, cheap parts city. Holy cow. $50 aluminum strut bar?

How has these parts.

 

there was a guy on here who did buy and install this pulley, sorry but i tottaly forget what his SN was

 

i know, i found that one too, right now im deciding beween rksports underdrive or the zpec, but both originated from the cavalier, which is why im getting it, i will gueni pig the pulley for everyone, with pics and with a how to, ima go with the zpec pulley and the strut bar, i will be sure to let you guys know how everything works, looks, feels, and if it makes a diffrence

so basically i will write a review on both parts

added pic to original post

 

awesome, ive been debating this puller for a long while now. im looking forward to hearing how it all goes!

 

crap dude ours does have the harmonic dampener in it. theres gonna be a bit more vibration in your motor without that rubber thing being....well rubber......shoot tell me how it goes...if its not too much more vibe....I'll go on ahead and get it too....

 

vibs r noting to me, i have solid tranny mounts, and the trq damper set to 10mm, so i dont think ill notice the vibs

 

thats not the way the harmonic dampener works.....it allows the crankshaft to rotate and give its vibrations from the detonations to the rubber part in the pulley, without it, all the vibrations are resonating in the motor - out to the mounts and so on. Solid crankpulleys been known to cause things to vibrate apart just like a harley without loctite.


As for having solid tranny mounts, a torque damper, those things hold your motor in place better than the stock ones. Those things hold your motor in place and transfer less energy energy into your body or your motor moving and put more of it right out to the wheels....vibrations...since they won't be absorbed by your motor moving around or your tranny moving around, the energy created has to go somewhere. It won't disappear, it'll transfer somewhere, more than likely your frame.....thats the shitty part of physics...

and everyone should be worried about vibrations....especially if it harmonizes itself in your head and cracks it, or worse...your block....

 

Yeah let us now how it goes, I know when I put a UDP on my V6 Mustang that I used to have it had a harmonic balancer like everyone is saying the Cobalt does. When you bought the UDP it came with a new one made for the new pulley though. I had to rent special tools from Autozone to get the pulley off and put it back on.

 

The main function of the crank damper is to absorb and dampen the rotational flex of the crank caused by the torque hits from each cylinder firing. This is why I questioned JPB about there solid aluminum crank pulley. Fluidyne did a nice write up on how a quality harmonic damper can actually add HP, and that replacing the stock one with a cheap aftermarket pulley with no damper can cause the engine to lose power, besides the risk of damage increasing. Not worth it in my opinion.

 

OP correct me if im wrong but I thought that in your OP you said you were gonna take it to the shop to have it done... Now your installing it and doing a how to?

 

That's a really cheap stb I wonder if it fits the sc

 

bleh dang subaru forums...explained it wrong....

 

I'm not sure if many of you know, but Z-spec use to be RSM racing. RSM racing had this small problem of not shipping products that were paid for, and using very low quality materials. For instance a blank of T6-6061 aluminum costs more than they are selling the machined pulley for.

Notice on their site how the only contact info is an Email address. No phone or address.
I tried to find them on the BBB website, and them seem to be gone. There us to be tons of negative info on them on there, but it seems to be all gone.
If you go to www.J-body.org and Search for RSM you find a lot of negative aspects of the company.

You get what you pay for.....

 

well someone brought this back o life lol, and yes i can do a how to and install myself, i have a friend at the dealer who was going to install it at the dealers shop, so i will be bale to be in there with im on a saturday to do it, now i didnt get this thing, got ddragged into another project, worht loads more hp than this

 

I've been on J-Body.org since 1999 and Mike ^ is 100% correct.

I would NOT recommend buying anything from that company.

Their are only 2 companies that started out there that are 100% reliable, both of which happen to be sponsors here as well. AllEcotec.com/Carcustoms.net and A+ Performance. Buy from them, they will NEVER rip you off.