Ok, I had my first drag race with a guy last night (I think it was against a Mustang--was night, therefore dark, and I was concentrating on my driving). I did well in my M Roadster, neck and neck all the way. Was talking to a friend of mine and he told me I need to learn to power-shift and explained it to me. Everytime I shifted, I was releasing the gas; what he explained was that I should keep the gas pedal down while shifting to keep the RPMs up. Also, that I wasn't bringing it to high enough RPMs, red line isn't starting until 6500, yet I didn't go past 4500. He felt that I should get the revs up to more around 5000, 5500.
What do you guys think? What's the affect on my car in doing these things? I know they're not things I should do everyday, but like if I let it out once a week? (Don't want to be in and out of the shop all the time ;)
Also, right now all the things that I have on/in the car are all the standard, out of the factory stuff. What upgrades, etc, could I get that would give me the most bang for my buck? For example, if there was something that would only cost me a couple hundred and would really help performance (whatever), please suggest!