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I know that you get what you pay for, but is the price difference mainly based on the brand names or is there other structural differences to be had here??
Ok, then thats some of the info I was missing. So, for strickly street driving is there a difference in the structural stability between a cast rim and a forged rim, or are they roughly the same, again for street driving only??
I sent you a PM regarding the black Z06 wheels....
Ken - You ready to swap me those black motorsports yet for my CCW I'll make you a good deal
I've had both wheels before. The cast (zo6 motorsport) wheels are much heavier. Mine also came with a pin hole in the metal which creating a very bothersome and hard to find air leak.
Forging uses intense heat and pressure to transform a [solid} slug of alloy material into the final shape of a wheel. Forged aluminium is about 300 per cent stronger than cast aluminium, yet less material is needed to produce the same "cast alloy wheel", which results in a lighter product. Because of the basic limitations inherent in forging, most forged wheels are two or three piece units. In two-piece construction, a centre is forged and welded or bolted into a spun or stamped outer rim. In a three-piece wheel, the centre is bolted to an inner and an outer rim half. This stands as an advantage of being easily customisable for a variety of widths and offsets.
Casting is a relatively inexpensive way to produce a high-quality, fairly strong alloy wheel. There are two methods used. One, system is known as gravity casting... whereby the molten material is poured into a mold and allowed to cool. These molds are usually made by machining a piece of material on CNC machine equipments to produce a wheel that only requires minor finishing (like drilling or possibly trimming of some excess metal) to be considered complete. The other and better system used is the low pressure or negative pressure casting. Here instead of pouring the molten material into the mould, the molten alloy is drawn up into the mould using a high-pressure vacuum. This eliminates much of the trapped air found in gravity casting process, producing a stronger wheel that is less porous than a gravity-cast one.
Ken - You ready to swap me those black motorsports yet for my CCW I'll make you a good deal
I've had both wheels before. The cast (zo6 motorsport) wheels are much heavier. Mine also came with a pin hole in the metal which creating a very bothersome and hard to find air leak.
Hey valdeztke.. R we talking an even trade here??? Naw, really I like the look of the black wheels against my white car. So I don't think I'll part with them anytime soon.
I do have a brand new set of Black C5 Z06 Motorsport wheels with the rivets, still in the boxes that I'd like to sell though.... 17x8.5 front and 18x9.5 rear... Do you like those?
Last edited by kenlperry; Aug 7, 2007 at 12:26 PM.
Reason: Forgot to mention the wheels are black.
Hey valdeztke.. R we talking an even trade here??? Naw, really I like the look of the black wheels against my white car. So I don't think I'll part with them anytime soon.
I do have a brand new set of Black C5 Z06 Motorsport wheels with the rivets, still in the boxes that I'd like to sell though.... 17x8.5 front and 18x9.5 rear... Do you like those?
Nah. I loved my C6 motorsports. If you get tired of them this winter let me know.
Watch out for Chineese junk!! Alot of the Motorsport wheels are Asian made & just crap. My experience: I bought a set from a forum vendor. I also purchased a set of new tires for all 4 rims. 3 rims balanced pretty well......one would never balance and took 2.25 oz just to ride down the road. After about 65...vibration city!!
I sold them & bought a set of HRE Forged wheels used from a forum member. The HRE whells are better in used shape than the Chineese junk Motorsports I bought. That caliber wheel has no business on a $50k Z06!
I have the chrome C6 Z06 Motorsport wheels and absolutely love the look.
MAKE SURE you get a set that is chromed in the USA. it will be stamped on the inside of each wheel.
If I had the cash to buy my "go-fast, handle great" parts as well as get a set of $4k HRE/CCW wheels, I would. those are truly works of art.
Instead I got the Motorsports for the street and use my original, incredibly light Speedlines for track days
Yeah .....not a whole lot of track driving for me. Not right now at least, so the extra weight really isn't a huge factor. And thanks for the heads up about chinese crap. I think they are slowly trying to 'OFF' us with the lead paint on toys and food contamination.
I do have a brand new set of Black C5 Z06 Motorsport wheels with the rivets, still in the boxes that I'd like to sell though.... 17x8.5 front and 18x9.5 rear... Do you like those?
and use my original, incredibly light Speedlines for track days
I think a lot of folks forget, or don't realize how light the OEM speedlines (and even slightly heavier Alcoa's) are. They're light
You'll spend a lot of $$ to buy something lighter in the aftermarket.
To each his own, but I would never replace any wheel with a heavier one, regardless of looks. And certainly not some piece of chinese made junk. Just my .02
I don't have a Z06 but a '99 hardtop and have my own mounting and balancing machines and would like to add my 2cents worth. I have a set of the Black Z06 motorsport wheels in Z06 sizes that I run street tires on and a set of 17x10 and 17x12 CCW classics that I run race rubber on. The front CCW's weigh 19.5 lbs. rear CCW's 19.5 lbs. The front 17x9.5 Z06 motorsport weigh 26lbs. and the rear 18x10.5 weigh 30lbs. As you can see there is quite a difference in unsprung weight between the repops and the high end wheels. There is also a huge difference in price since CCW's are around 4 times the price of the motorsports. The motorsports didn't really balance too bad in fact one took hardly any weight and they look really nice on the black car with the polished outer rim and chrome rivets and I've had a lot of compliments on them. It all boils down to the intended use and how much you want to spend. I would give up a huge amount of performance if I used the heavy wheels for racing.
I have much heavier wheels than stock for street use. I'm really NOT concerned about un-sprung weight, and i love the look.
on the track, I use the OEM wheels. i have not found anything yet that's lighter than the Speedlines.....at least not for the price.....free when you buy the car
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