Power shifting is a touchy subject among car enthusiasts. There are many debates on whether it helps your time, or just hurts your car. However, if done right power shifting can definitely improve your track time.
Power shifting is a method of changing gears while still keeping the RPMs high. This allows for a maximum power surge. A correctly done shift should chirp the tires. What differs a power shift from speed shifting or granny shifting is the acceleration. When power shifting, your foot should be be on the gas, pressing it to the floor the whole time. When the RPMs are at the correct spot on your car’s power curve, stomp the clutch and switch gears at the same time. You have to get the timing perfect in order for it to work. You should be pulling the shift knob up or down slightly depending on what gear you’re going in to, just to make the process faster.
Be careful when attempting this with high powered cars such as the Mustang. It’s definitely recommended to try on low powered cars. Shifting from gear three to four will be good for practice. Obviously this method of shifting causes extreme wear and tear on your transmission, so don’t do it all the time. In fact most people never recommend doing it unless you’re in a race.

Newer Ford Mustangs, especially the S197 model seem to have a flaw in the window tinting. A lot of owners are experiences scratches and scuffs that are impossible to get out. Some gouges appear to be passed the tint and scratching the window itself.

Window Tint Scratch Prevention

Moleskin as pictured above is a strip of material that goes along your window to prevent scratches. Don’t be fooled by the fancy name however. The product is nothing more than felt, and any DIY modder can apply it himself. If you don’t have the motivation to do it yourself, you can always buy a kit specifically designed for the Mustang.
Cleaning your windows regularly can help a lot as well. Most people theorize that dust, dirt, and grit cause the scratches when the window is rolled up and down. Plexus is an industrial strength plastic cleaner. It’s specifically designed to fill in, polish, and buff out scratches.

Fix Window Tint Scratches

If you already made the mistake of not using moleskin, there are little to no methods you can try to remove the scratches. If you have applied no after market parts that may have caused the damage, then Ford may cover the scratches under warranty. This also applies to the window tinting itself; meaning Ford will only cover stock tints.

If you’ve ever wondered how much horsepower your Mustang or any other car is outputting in a quarter mile race, it’s possible to get a rough estimate. While not exact, by figuring the time it took and weight of the car, you can get an general idea of your time. The following images is a list of common track times along with common car weights.

If your car doesn’t fit in to those times or weight, you can always use this handy tool.