hello everyone and welcome in this video
we're going to be talking about how to
do a burnout but not only how to do a
Burnout we're also going to check out
the actual effects of performing a
burnout on the rear tires of my Honda
s2000. So first of all what is the point
of a burnout and to understand this it's
kind of easy to look at extremes of tire
temperatures so if you have a really
cold tire it's going to be really hard
and as a result of being hard it's
frictional coefficient with the ground
is going to be low and so it's not going
to have much grip. Now if you heat up
that tire it's going to be warmer and
it's going to be softer and it's going
to comply with that road surface better
and as a result have more grip. So in
drag racing you know the launch is the
most critical part and so if you can
warm those tires up before that initial
launch and make sure you get a good
start then you're going to have you no
more grip in order to accelerate quicker
rather than just spin up the tires or
have a lower acceleration rate so the
ultimate purpose for it is in drag
racing, where you know one of the
benefits of course is that it's going to
heat up the tires and thus give you more
grip and it can also help shut off some
debris or anything that's been stuck on
to the tire so that you have a nice clean tire
when you are starting that launched to
run. Now the process in an automatic
transmission vehicle is very
straightforward. Literally you mash the
break and then you mash the accelerator
and you just let that rear tire spin
often it's that simple now it can be a
little tricky sometimes it may not want
to actually start spinning the tires so
you may need to use a little bit less
brake pressure, get the tire spinning and
then once you have them spinning and
you've got the engine revved up you can
apply more brake pressure to make sure
your car isn't moving forward too
quickly and so you know that's the very
simple process with an automatic with a
manual transmission it's a little bit
more tricky if you're trying to kind of
just stand there with the rear tire
smoking while the car isn't moving too
much and so to do this what you want to
do is push your clutch in, put it in
first gear apply some throttle release
the clutch very quickly and immediately
take that left foot from the clutch and
press it hard on the brake and so once
you press it on the brake you'll have
those rear tire spinning and you're
going to modulate between your left foot
and your right foot how much brake
pressure and throttle you need in order
to keep the burnout going now the tricky
part here is knowing how much throttle
you need to apply initially to get those
rear tires to spin in my Honda
s2000 it seems to be around 5000 rpm
that's kind of the sweet spot you know
if you go much above that you may end up
just burning up your clutch and if you
go below that you may just stall out the
vehicle and so you know you do want to
find that happy medium and it is kind of
a learning process for each individual
car based on how much grip you have and
how much torque your engine is putting
down so vehicles with more engine torque
you know big v8’s they're going to be at
lower rpm than something like this s2000
which is going to be spinning up pretty
high but that's because it's a small
engine and it doesn’t have much torque so
now let's go ahead and watch a burnout
happen but first let's check out the
rear tire temperatures looking at the
rear tires both of them have
temperatures around 15 degrees Celsius
now for a short burnout
so after two very short burnouts you can
see the tire temperature is raised to
about 18 Celsius with the inside of the
tire at about 20 degrees as a result of
the out of spec negative camber and now
once without brakes
the inside portion
of the tire has raised to about 25
degrees with the center at about 22 and
because what you've probably been
waiting for is a longer burn out I
handed the keys over to Braten Carlson a
fellow automotive youtuber who happily
dumped the clutch over 7000 RPM while I
films with the thermal camera more power
smooth surface and the clutch held just
fine for a nice long burnout
after the fact the tires are roasting
over 160 degrees Celsius the tires do
cool off fairly quickly however at 45
seconds after the burn out the
temperatures have dropped to 125 celsius
by a minute the left tires just over 100
Celsius at a minute and 45 seconds we're
down to about 90 and by two minutes
portions of the tire have dropped below
80 if you haven't yet watched my full
video of the burnout using the thermal
camera I'd highly recommend it as it's
fascinating to see also a shout out to
last place garage for letting us create
clouds in their shop and bragging
Carlson for the epic for now I'll have
links everyone in the video description
if you have any questions or comments
feel free to leave them below thanks for
watching
you