Rear bar?
Thread Starter
Drifting
Joined: Aug 2017
Posts: 1,926
Likes: 359
From: Dayton, OH
Rear bar?
2010 C6 with MRC JIm Mero's Super Sport upgrade and a supercharger
I changed the rear quarter panels from base\narrow body to Z06's to accommodate 345 tires to try to keep up with the supercharger.
Factory sizes are 245 front 285 rear.
Factory bars are 25.5 mm front and 17.5 mm rear.
Which C6 Corvette rear bar, Z51, Z06 or even T1, would best restore it to a slight understeer?
Should I change to the same model spring?
Thanks!!!
I changed the rear quarter panels from base\narrow body to Z06's to accommodate 345 tires to try to keep up with the supercharger.
Factory sizes are 245 front 285 rear.
Factory bars are 25.5 mm front and 17.5 mm rear.
Which C6 Corvette rear bar, Z51, Z06 or even T1, would best restore it to a slight understeer?
Should I change to the same model spring?
Thanks!!!
Racer
Joined: Dec 2006
Posts: 320
Likes: 74
From: Chandler AZ
Increasing the size of the rear tires adds rear grip which increases understeer. In order to restore balance, i.e., reduce understeer, you would want to install a larger rear bar. If you are mostly drag racing I would just leave the bars as-is as the only place you would notice the difference is on the road course or at an autocross.
Safety Car
Joined: Sep 2013
Posts: 4,355
Likes: 2,633
From: Draper Utah
^^^This^^^
The base rear bar is to light for the C6 and causes the car to wallow as it exits a corner. Normally I suggest the Z51 bar on a base as the Z06 bar has a tendency to induce oversteer near the limits, but in this case with more rear tire the Z06 rear bar might work better.
Whichever rear bar you choose the front sway bar also needs to be upgraded to match. The Z51 and Z06 share the same front bar so that's a no brainer.
The base rear bar is to light for the C6 and causes the car to wallow as it exits a corner. Normally I suggest the Z51 bar on a base as the Z06 bar has a tendency to induce oversteer near the limits, but in this case with more rear tire the Z06 rear bar might work better.
Whichever rear bar you choose the front sway bar also needs to be upgraded to match. The Z51 and Z06 share the same front bar so that's a no brainer.
Race Director
Joined: Sep 1999
Posts: 12,438
Likes: 919
From: CONCORD NC
Is it under or over steering now? I’d assume understeer with the giant tires. Anyway you aren’t clear, do you want more understeer or less. Bigger bar in the rear will increase front grip, and vice versa
