hello everyone and welcome to this
week's video today i'm going to be
explaining how to increase horsepower
how to get your car moving faster so
when you put in a device on your car or
you do something to your car in order to
try and make it accelerate more quickly
by increasing horsepower there's one of
several things that you're going to try
and do one of several things that device
is going to try and alter about your
engine
so
at wide open throttle your engine is
burning a set amount of fuel now in
order to make more power
why not burn more fuel so some devices
will try and allow your engine to be
able to burn more fuel well in order to
burn more fuel you also need more oxygen
so a device could add air or oxygen
directly or something that allows oxygen
to be
extra oxygen to be in your combustion
chamber when you ignite your air fuel
mixture so by having more oxygen or more
air in that chamber then you can burn
more fuel and hence you can create more
power because you have a greater force
pushing down on that piston ultimately
you're creating more torque
on the crankshaft
so
another way you can increase horsepower
is to increase your efficiency so if
your engine is more efficient it's what
it's doing is is it's losing less power
so if it's losing less power well then
it's making more power
so one of the ways you can do this is to
increase the compression ratio so if you
increase your compression ratio
naturally your engine is going to be
more efficient and so you will have
more horsepower
than if you had a lower compression
ratio
also you can reduce friction so if you
can reduce friction anywhere where two
items that are moving in your engine are
moving and they touch if you can reduce
the friction between those two items
then you're going to reduce the amount
of heat created
between those two items touching and
therefore your engine is going to be
more efficient so it will be creating
more useful power
another way to increase horsepower is if
you can somehow increase the engine's
rpm so if you can have this explosion in
here occur more times in one minute say
it occurs 100 times in a minute versus
50 times in a minute well that's
directly going to increase the
horsepower assuming that all else is
equal
so
if you haven't watched my video on
horsepower versus torque that's a great
video to check out but basically
horsepower is equal to torque times rpm
divided by 5252 so if you increase rpm
obviously your horsepower is going to go
up double your rpm double your
horsepower assuming all else is equal
and finally one more way that you can
increase your horsepower at the wheels
is if you can reduce inertial forces so
what this means is like this piston here
so this piston has a certain weight and
to accelerate that you have to push a
certain force on it well if you decrease
the weight of this piston
then it takes less force to make it move
and less force to make it stop once it's
the bottom and then has to go back up so
that's less energy that you have to use
moving the piston and more energy that
you can use moving your car
another way is rotational inertia so
when you accelerate you have to
accelerate all of your rotational items
like your drive shaft your transmission
gears your wheels your differential all
those things start rotating so that's a
topic i'll get into in more detail
but basically that's another way to
increase your wheel horsepower now
all of this you need to keep in mind
that in order to crease to increase your
wheel horsepower traction cannot be the
limiting factor so if you press on your
gas pedal and instantly your tire starts
spinning well then it doesn't matter how
much power you're making because you're
not putting any of it down
so if traction is the limiting factor
you have to increase grip in order to
increase the usable wheel horsepower
how do you do this well you could get
stickier tires and that changes your
frictional coefficient i've used this
equation a lot force the force that you
can put on the onto the ground is equal
to the frictional coefficient between
your tires and uh the ground that you're
on and the normal force on those tires
so the weight on those tires
so you can either increase the friction
by using stickier tires or you can
increase the force pushing down on the
tire now using weight to increase the
force pushing down on the tire isn't
necessarily the greatest idea because
that means your car is heavier force
equals mass times acceleration so if you
increase
the
mass of your car then it accelerates
more slowly so you're kind of defeating
the whole purpose here so
what you would like to do is change
ideally change that frictional
coefficient or use something like
aerodynamics in order to increase the
normal force without increasing the
weight of the car
so i'm going to get into more of these
topics more specifically and different
devices and tools and ways that you can
increase horsepower but all of them are
probably going to try to achieve one of
these things that i've listed here in
order to increase your horsepower and
make your car accelerate more quickly