It shouldn't hurt it since you don't do it occassionally. These guys that do these sustained burnouts bouncing off the redline probably aren't doing it any good though.
If your rpms estimations are based on the stock tachometer on your dash you are really revving it a few hundred rpms lower than it says. If you hook up like a 5 inch tachometer that will read your TRUE rpms then you would be pushing the engine to it's TRUE rpm level. I have heard that ford does this so you don't redline your engine or in your case when you "think" you have redlined it you haven't. It's just a trick designed to save your engine from blowing if you decide to be stubborn from time to time. Best thing to do is buy a tachometer off ebay for 60 bucks shipped to your door and install it yourself. This will allow you to read the true RPM level of your engine as well as having a shift light blind you saying "shift me you moron" which is always good to do when you are dialing in the exact peak power range of your rpms. Like Saleen Gt mentioned, you want to make peak power in each gear at one specific RPM level and then shift to the next gear - Don't damage your engine when it's not making any more power in the higher rpm's. Now if you had a cobra like mine that is built you don't worry about shifting till 7 grand because the engine is built to make peak power at that range. Now as far as topping out your car in 4th gear past redline...I hear a good engine rebuild goes for about 5-6 grand so just have that set aside if you like to take chances like that. Or you could throw the 5-6 grand on a basketball game and turn it into 10 grand if you win - because either situation you are gambling with your money and/or car.
i raised my limiter to 6350 so i can stay in 4th gear longer during a freeway run so i dont come down into 5th at WOT at 3500rpm and bog the motor down.
Did no one else notice this post?
Yeah...whats so funny? Doesn't a Vette go faster in fifth since sixth is the economy gear...not enough power to push the car over 180 in sixth when the revs drop from fifth?
I've had my GT conv to 128 with the top down in fourth. With the wind drag, I wonder if fifth will maintain speed with my stock 3.27 rear end. Would have hit top speed, whatever it is, but an Escalade towing a new '06 Z06 pulled into the left lane! Gotta love M-14 out west of Detroit.
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