[Z06] 19/20 wheel combo thoughts
Le Mans Master
Joined: Jul 2007
Posts: 6,094
Likes: 3,468
From: Oswego IL
Safety Car
Joined: Mar 2004
Posts: 4,434
Likes: 18
From: Bartlett IL
St. Jude Donor '07-'08-'09-'10-'11
One is the obvious... weight! I'm sure that 20" wheel/tire combo is AT LEAST 10 lbs heavier per corner than the stock 18's or another 18" lightweight wheel. Thats going to rob you of hp and effect braking for sure.
Le Mans Master
Joined: Jul 2007
Posts: 6,094
Likes: 3,468
From: Oswego IL
My point was that when tracking my car around cones or down a drag strip, when max performance is required, my car wears dedicated racing shoes. When I am driving to work, rolling down the interstate, and generally driving at less-than-insane speeds, my car doesn't care if it is wearing 20" wheels or 18" wheels.
Pro
Joined: Mar 2002
Posts: 670
Likes: 46
From: New Orleans LA
Actually, you are incorrect on that point. My 20" TSW are within 2-3lb weight diff of my Stock Z06 18"'s.
Pro
Joined: Mar 2002
Posts: 670
Likes: 46
From: New Orleans LA
Here are the weight differences
Stock OEM Specs: 17/18"
19.6 lbs, front; 21.4 lbs, rear - 01 Z06 forged
19.2 lbs, front; 21 lbs, rear - 02-04 Z06 cast/spun
TSW Nurburgring Weight: Rotary Forged 19/20"
19x9.5 - 22.2 lbs
20x10.5- 24.4 lbs
Stock OEM Specs: 17/18"
19.6 lbs, front; 21.4 lbs, rear - 01 Z06 forged
19.2 lbs, front; 21 lbs, rear - 02-04 Z06 cast/spun
TSW Nurburgring Weight: Rotary Forged 19/20"
19x9.5 - 22.2 lbs
20x10.5- 24.4 lbs
Last edited by badass7; Apr 16, 2013 at 11:11 PM.
Safety Car
Joined: Mar 2004
Posts: 4,434
Likes: 18
From: Bartlett IL
St. Jude Donor '07-'08-'09-'10-'11
My point still stands... youre not factoring in the tire which will weigh another 3-5 lbs more. True the TSW wheels are probably some of the lightest wheels out there, and that being true youre still 6-8 lbs over stock..
Read up on how critical rotating mass is
Instructor
Joined: Sep 2012
Posts: 135
Likes: 0
From: Kent WA
Most of these cars are running 25 series tires with the same overall diameter as a 30 series 19 or 35 series 18 wheel. Which should actually be a lighter tire, not heavier as you're saying.
Burning Brakes
Joined: Dec 2010
Posts: 925
Likes: 0
From: CA
What brand wheels are those? They are sick!
This is a friends C5 coupe with 19/20....maybe it would be "ghetto" on a Z...NOT!
The wheel sizes are 19x10 and 20x12. Tires are Nitto Invos 275/30/19 and 345/25/20
http://forums.corvetteforum.com/memb...0b-120097.html
The wheel sizes are 19x10 and 20x12. Tires are Nitto Invos 275/30/19 and 345/25/20
http://forums.corvetteforum.com/memb...0b-120097.html
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Burning Brakes
Joined: Apr 2012
Posts: 786
Likes: 3
heres an example OEM vs 19/19 weight difference 
19/19 set up weights 4LB less than OEM 17/18
19/19 set up weights 4LB less than OEM 17/18
19x10, and 19x11. Continental ContiSport Contact 3's (275/30-19, and 305/30-19). The car actually drives nicer after the change (smoother). I think its cause my old Goodyear SC's were down to the wear markers.
I did some homework before I got them....
Wheel/Tire weights comparing stock Z06 setup to my new CCW setup.
Factory Z06 setup =
Front
...19.2 lbs (02-04 Z06 Front 17x9.5)
...29 lbs(265/40-17)(Goodyear Eagle SC)
...48.2 lbs Total
Rear
...21 lbs (02-04 Z06 Rear 18x10.5)
...33 lbs (295/35-18)(Goodyear Eagle SC)
...54.0 lbs Total
CWW - SP500 19/19 setup=
Front
...22.5 lbs (19x10 Front SP500)
...26 lbs (275/30-19)(Continental ContiSport 3)
...48.5 lbs Total
Rear
...23.5 lbs (19x11 Rear SP500)
...28 lbs (305/30-19) (Continental ContiSport 3)
...51.5 lbs Total
I did some homework before I got them....
Wheel/Tire weights comparing stock Z06 setup to my new CCW setup.
Factory Z06 setup =
Front
...19.2 lbs (02-04 Z06 Front 17x9.5)
...29 lbs(265/40-17)(Goodyear Eagle SC)
...48.2 lbs Total
Rear
...21 lbs (02-04 Z06 Rear 18x10.5)
...33 lbs (295/35-18)(Goodyear Eagle SC)
...54.0 lbs Total
CWW - SP500 19/19 setup=
Front
...22.5 lbs (19x10 Front SP500)
...26 lbs (275/30-19)(Continental ContiSport 3)
...48.5 lbs Total
Rear
...23.5 lbs (19x11 Rear SP500)
...28 lbs (305/30-19) (Continental ContiSport 3)
...51.5 lbs Total
Last edited by 2003corvettez06; Apr 17, 2013 at 03:01 PM.
Drifting
Joined: Jul 2009
Posts: 1,382
Likes: 37
From: Everett WA
St. Jude Donor '14
FYI There is a 19/20 thread in the C5 General group too
http://forums.corvetteforum.com/c5-g...20-wheels.html
http://forums.corvetteforum.com/c5-g...20-wheels.html
Melting Slicks
Joined: Sep 2006
Posts: 2,728
Likes: 142
From: Iowa
