C-8 Factory Rake?
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Instructor
Joined: May 2007
Posts: 114
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C-8 Factory Rake?
I am installing Yokohama A052's for auto cross and found the front's are .7" smaller in dia or .35" lower and the rear's are .8 larger in dia or .4" higher. I want to keep the same rake as original. by measuring the car on a flat surface the frt ride height at the frame directly behind the frt wheel and right in front of the rear is only 1/8" of rake (the frt is 1/8' lower than the rear). The new tires will increase the rake by about 3/4". I am contemplating dropping the rear by 3/4". Anyone know what the factory recommended race rake is? On my modified C-5 I had 3/4" rake so I am not sure what to do. Any ideas?
Last edited by dgoetz; Apr 15, 2021 at 09:59 PM.
Le Mans Master
Joined: Aug 2000
Posts: 5,529
Likes: 1,943
From: Austin Texas
I am installing Yokohama A052's for auto cross and found the front's are .7" smaller in dia or .35" lower and the rear's are .8 in dia or .4" higher. I want to keep the same rake as original. by measuring the car on a flat surface the frt ride height at the frame directly behind the frt wheel and right in front of the rear is only 1/8" of rake (the frt is 1/8' lower than the rear). The new tires will increase the rake by about 3/4". I am contemplating dropping the rear by 3/4". Anyone know what the factory recommended race rake is? On my modified C-5 I had 3/4" rake so I am not sure what to do. Any ideas?
Rears are 0.8" smaller
rake changed by 0.1"
Unless you have super human perception skills, I doubt that you will feel anything change that is remotely related to the chassis rake.
Burning Brakes
Joined: Nov 2005
Posts: 1,037
Likes: 126
St. Jude Donor '07
I am installing Yokohama A052's for auto cross and found the front's are .7" smaller in dia or .35" lower and the rear's are .8 in dia or .4" higher. I want to keep the same rake as original. by measuring the car on a flat surface the frt ride height at the frame directly behind the frt wheel and right in front of the rear is only 1/8" of rake (the frt is 1/8' lower than the rear). The new tires will increase the rake by about 3/4". I am contemplating dropping the rear by 3/4". Anyone know what the factory recommended race rake is? On my modified C-5 I had 3/4" rake so I am not sure what to do. Any ideas?
Burning Brakes
Joined: Nov 2005
Posts: 1,037
Likes: 126
St. Jude Donor '07
I think OP is saying he is going smaller on the front and larger in the rear (as compared to OEM tires).
