If you mean- accelerate faster.. you need to increase the horsepower or lighten the car. If you mean top speed, most cars are limited and a programmer/cpu is the only way around that.
For Horsepower:
engine programmer can be a good bang for the buck
cold air intake
under drive pullies or replacing clutch fan with a electric fan
tri-y or full length 4 into 1, shorties are a waste$$ for most newer cars
cat back exhaust, but newer cars don't pick up as much as older cars
from there on it gets expensive, involved....
turboes
superchargers
cam/intake manifold/(rr if a push rod motor)
ported heads/hi-po heads
stroker kits
Lightening is cheap(for the first few pounds), but most don't want to:
remove the-
back seat
spare tire/ junk in the truck
insulation/carpeting
passenger seat or replace both front seats with race seats
radio delete
light weight rims
carbon fiber/fiberglass- hood, fenders, deck lid
also changing the
ring/pinion gear
higher stall torque converter
can help with drag/track et.
All you have to do is floor it or put NOS as in nitrous in your car.
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Just keep practice running, also, eat a healthy diet. and while running be sure to take big steps (have a large gait) at a fast speed, but make sure to pace yourself or else you'll lose energy.
if you need to run very fast uneed to do exersice in treadmill you have to do for 2 hour in one dayif you follow that you can run very fast.