Adding unsprung weight...
01-19-2016, 05:35 PM
#1
Pro
Thread Starter
Adding unsprung weight...
I'm considering running replica ZO6 wheels on my car. They are 1/3 the cost of originals. However, they add 7 lbs each. Would this extra weight have a noticeable affect on the ride? Handling? Component wear? I use the car almost exclusively for track events.
01-19-2016, 06:54 PM
#3
Pro
Thread Starter
01-19-2016, 07:16 PM
#4
A replica set of 4 wheels is $450. One new Speedline wheel is $300. I don't really want to mess with used.
01-20-2016, 02:48 AM
#5
I have 7 sets of wheels and tires that I rotate between 4 cars. I am never less than amazed when I switch from my heaviest(56lbs) to my lightest(42lbs) on my C5. It is night and day in terms of braking and accelerating.
The latest issue of car and driver tests a GT350 vs GT350r with the carbon wheels in acceleration.
Only difference was the 14lb lighter carbon wheels.
30-50, 10.8 vs 9.9 (top gear)
50-70, 10.5 vs 9.7 (top gear)
30-130, 17.7 vs 16.5 (4th gear)
The latest issue of car and driver tests a GT350 vs GT350r with the carbon wheels in acceleration.
Only difference was the 14lb lighter carbon wheels.
30-50, 10.8 vs 9.9 (top gear)
50-70, 10.5 vs 9.7 (top gear)
30-130, 17.7 vs 16.5 (4th gear)
01-20-2016, 07:45 AM
#6
Le Mans Master
Personally I wouldn't touch replicas for track use. Too much risk of a wheel failure. Had a friend with replicas who cracked the spokes. Fortunately he caught the failure before it became catastrophic. Keep in mind it isn't only your life you're responsible for, but also those on the track with you.
01-23-2016, 12:29 PM
#7
Le Mans Master
Member Since: Dec 2005
Location: Port Arthur, Texas 77642
Posts: 8,475
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I have 7 sets of wheels and tires that I rotate between 4 cars. I am never less than amazed when I switch from my heaviest(56lbs) to my lightest(42lbs) on my C5. It is night and day in terms of braking and accelerating.
The latest issue of car and driver tests a GT350 vs GT350r with the carbon wheels in acceleration.
Only difference was the 14lb lighter carbon wheels.
30-50, 10.8 vs 9.9 (top gear)
50-70, 10.5 vs 9.7 (top gear)
30-130, 17.7 vs 16.5 (4th gear)
The latest issue of car and driver tests a GT350 vs GT350r with the carbon wheels in acceleration.
Only difference was the 14lb lighter carbon wheels.
30-50, 10.8 vs 9.9 (top gear)
50-70, 10.5 vs 9.7 (top gear)
30-130, 17.7 vs 16.5 (4th gear)
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NemesisC5 (01-23-2016)
01-23-2016, 02:00 PM
#9
1. You will definitely notice 7lbs difference per corner.
2. I would not recommend running replica's.
3. Try to buy new. Seems everytime I buy used wheels I find something that makes me regret it. House of Wheels is a great vendor. A set should run about $1200 new.
You will regret not spending the extra for new speedline/alcoa's and I guarantee you will pay for it at some point.
2. I would not recommend running replica's.
3. Try to buy new. Seems everytime I buy used wheels I find something that makes me regret it. House of Wheels is a great vendor. A set should run about $1200 new.
You will regret not spending the extra for new speedline/alcoa's and I guarantee you will pay for it at some point.
01-23-2016, 02:37 PM
#10
Le Mans Master
1. You will definitely notice 7lbs difference per corner.
2. I would not recommend running replica's.
3. Try to buy new. Seems everytime I buy used wheels I find something that makes me regret it. House of Wheels is a great vendor. A set should run about $1200 new.
You will regret not spending the extra for new speedline/alcoa's and I guarantee you will pay for it at some point.
2. I would not recommend running replica's.
3. Try to buy new. Seems everytime I buy used wheels I find something that makes me regret it. House of Wheels is a great vendor. A set should run about $1200 new.
You will regret not spending the extra for new speedline/alcoa's and I guarantee you will pay for it at some point.
01-23-2016, 04:55 PM
#11
Le Mans Master
Member Since: Dec 2005
Location: Port Arthur, Texas 77642
Posts: 8,475
Received 331 Likes
on
241 Posts
If you check on the Roadrace and Autocross forum, the members there tend to run four (4) 10.5X18" REAR wheels. One reason is that more suitable track tires are available in the 18" size than any other. I would recommend that you just go on line and look for 4 used rear 10X18 Corvette whels. They are usually available at reasonable price point.
C5 z06 18x10.5 speedline wheels f/s
Last edited by NemesisC5; 01-23-2016 at 05:00 PM. Reason: Corrected price and added link.
01-23-2016, 05:44 PM
#12
If you check on the Roadrace and Autocross forum, the members there tend to run four (4) 10.5X18" REAR wheels. One reason is that more suitable track tires are available in the 18" size than any other. I would recommend that you just go on line and look for 4 used rear 10X18 Corvette whels. They are usually available at reasonable price point.
01-23-2016, 11:33 PM
#13
Melting Slicks
Pro Mechanic
Member Since: Nov 2013
Location: Ex DPRK, now just N of Medford, OR
Posts: 2,916
Received 736 Likes
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546 Posts
Been tracking for a LONG time... every time I try to pinch pennies, it's cost me more in the long run.
Buy the right wheels, buy them once.
Buy the wrong thing, throw it away, then buy the right one.
Only followed the second plan about a zillion times...
Buy the right wheels, buy them once.
Buy the wrong thing, throw it away, then buy the right one.
Only followed the second plan about a zillion times...
01-24-2016, 08:21 AM
#14
01-24-2016, 01:38 PM
#15
Le Mans Master
1. You will definitely notice 7lbs difference per corner. Most folks won't.
2. I would not recommend running replica's. I agree 100%.
3. Try to buy new. Doesn't really matter as long as they're straight.
House of Wheels is a great vendor. Not true at all. Customer service is a joke. Folks think they're great simply because they offer OEM C5Z wheels that are high in demand and they keep them in stock. The owner is really an unreasonable A-hole.
It would actually benefit everyone if other vendors had access to whatever supplier he's getting them from. House of Wheels essentially has a monopoly on OEM C5Z wheels which is not good for consumers.
2. I would not recommend running replica's. I agree 100%.
3. Try to buy new. Doesn't really matter as long as they're straight.
House of Wheels is a great vendor. Not true at all. Customer service is a joke. Folks think they're great simply because they offer OEM C5Z wheels that are high in demand and they keep them in stock. The owner is really an unreasonable A-hole.
It would actually benefit everyone if other vendors had access to whatever supplier he's getting them from. House of Wheels essentially has a monopoly on OEM C5Z wheels which is not good for consumers.
Last edited by sperkins; 01-24-2016 at 01:39 PM.