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Old 12-03-2013, 03:14 AM   #67
SeanBlader
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Quote:
Originally Posted by Nothing View Post
Have you ever had a mis-shift in an I4 car? the head has to come off and new valves dropped in ect...
For arguments sake, I'm going to assume you're referring to the misshifting issue in the 7th generation Celica. I had one and was fortunate to not have that problem, but I knew a couple people who did. I have however misshifted a Toyota with an I4 motor and what happens in a RWD car is a little different than the Celica. When a misshift occurs, the engine tries to rapidly speed up, and the vehicle tries to rapidly slow down. On the Celica that transfers the vehicle weight to the drive wheels allowing them to improve their traction, thereby putting all the car's momentum into the motor. In a RWD car that rapid decrease in vehicle speed will also load the front wheels with grip, allowing the drive wheels to suddenly offload a proportional amount of grip, and they quickly lose traction and lock up before the motor can overrev. Ironically I did that very thing in a car with far better rear grip than the 86, it was an MR2. It never got over 6k RPMs before the rear wheels just chirped as they got dragged along.

I'm not saying I'm going to go out and try this, but the Celica was also Toyota's first foray into 6 speed transmissions, and the centering springs were VERY loose on those early models, making it very easy to go from redline of 3rd to 2nd. You will likely not see that happen with these cars.
-Sean
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