hai1206vn wrote:eaglecatcher wrote:I shift about 4200 for max performance,because I don't get any hp once I'm in the 4k range, so its best for me to shift then, plus I land in a decent spot in the next gear, so it all works out.
Don't know about your engine and tranny, 4k might be a bit early. Sure the torque there is falling, but power may still be before its peak.
true, but the power will start to increase more slowly. between 3k and 4k you might have a 50 horsepower gain (imaginary car, don't worry) but between 4 and 5k, you might have a 30 hp gain. not really worth it. that's between you and your car. discover it today at your local Dyno tester! j/k, but if you're serious, go for it. (i find it WAY too expensive for them to just sit there and burn my gas up)
anyways, if you want an engine that you can redline try one of GMs LS series. tested at max RPMs for several hundred hours nonstop. i'm sure FMC's got something like that, although i haven't looked it up (chevy man, myself).
anyway, the only thing it's probably going to hurt is your 1/4 mile time. shifting late loses power, but not nearly as badly as shifting early. find the "sweet spot" and you'll be all good.