corvette pinion/half shaft angle??
Thread Starter
Racer
Joined: May 2004
Posts: 290
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From: LV NV
corvette pinion/half shaft angle??
on a regular straight axle car you need to have the right pinion angle to get everything in line to get the best of your components and suspension for a good solid launch w/out wheel hop and tire spin ect.... well since the C5 corvette has a solid driveline, but the half shafts seem kind of like 2 drive shafts off each side, is there a specific angle those should be at for a solid launch?, I'm still having major wheel hop issues and it just seems like its something not in line, I've got new bilstien shocks but a stock spring, the car is lowered on the stock bolts..... I'm thinking w/it lowered the half shafts are extended above the center line of the rear end far enough to cause problems, anybody know anything usefull???? 
Former Vendor
Joined: Dec 2004
Posts: 220
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From: Wixom Michigan
On a driveshaft type car with "U-joints", the angles are important because for a U-joint at any angle other than straight, the instantaneous velocity of the output fluctuates relative to the input as it rotates. More angle, greater peak fluctuation. Two U-joints at proper angles and indexed correctly will effectively cancel each other out.
Corvette half-shafts (like most FWD half-shafts) are CV (constant velocity) joints. This means exactly what it says. The velocity is constant through rotation, so the angle is less of a problem.
At the end of last season, we started to analyze the Corvette "wheel-hop" phenomenon on an autocross car during hard launch (ProSolo). The data we have collected thus far has been unusual.
Stay tuned for more details as further testing continues this season...
Bob K
ATI Performance Engineering
Corvette half-shafts (like most FWD half-shafts) are CV (constant velocity) joints. This means exactly what it says. The velocity is constant through rotation, so the angle is less of a problem.
At the end of last season, we started to analyze the Corvette "wheel-hop" phenomenon on an autocross car during hard launch (ProSolo). The data we have collected thus far has been unusual.
Stay tuned for more details as further testing continues this season...Bob K
ATI Performance Engineering
Thread Starter
Racer
Joined: May 2004
Posts: 290
Likes: 0
From: LV NV
I see what your saying but if you took off the cv boots wouldnt you just find something like a u-joint or similar, I have yet to take it apart, I would think w/them being able to have movement that a straight line would be the least amount of stress on them as possible, thus not "hopping".... have you accually tried 2* on the half shafts to see if that works?
Le Mans Master
Joined: Oct 2005
Posts: 7,088
Likes: 1,829
From: Metro Detroit Michigan
Originally Posted by ATI Performance
At the end of last season, we started to analyze the Corvette "wheel-hop" phenomenon on an autocross car during hard launch (ProSolo). The data we have collected thus far has been unusual. Stay tuned for more details as further testing continues this season...
Bob K
ATI Performance Engineering
Stay tuned for more details as further testing continues this season...Bob K
ATI Performance Engineering
