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Fixing Tesla Model 3 Ride Quality – Before & After TEST


– Good morning, how are you? I hope you’re good. Today’s video features
very attractive cars. If you’re not into that, catch me at the next one. There’s also data so you know, we have that thing. Let’s go hop in the car though and go for a ride. (upbeat music) Alright guys, so I’m here at
Unplugged Performance in L.A. and we’re going to lower Tez, my Model 3 by an inch and a half. And these new springs they have are also designed to be a better ride so we’re gonna do a little test to see if they’re actually smoother than the original springs that
come with the Tesla Model 3. And the way I’m gonna do that, my friend Eric did this
with air suspension on his Model S, I believe, and there’s an app on my
phone called VibSensor which detects all the
movement and everything. So I’m gonna put this
on the mount in my car, go for a drive before
we do the new springs, and then go for the same drive afterwards to see what the difference is. And I’ll share that with you guys and we’ll actually dig
into some of the data. Stay tuned. (upbeat music) Alright guys, so I just
went around the parking lot, actually did it twice because
somebody got in my way and all that. Hopefully that was a really
tiny little sample data. I also got some on the way
up here on the freeway, we’ll get some on the way back but now it’s time to go
for a bit longer of a route and I’m gonna really
try and control my speed so that way it’s the same each time. Here what we’ll do is we’ll
go over some train tracks, we’ll make some turns and all that and I’ll put the data in then we’ll do it again after
we get the new springs on. Let’s go. (upbeat music) Second test, same route, still have the old
suspension, the factory stock, gonna put the Go Pro on
the outside this time and get the tire and
actually see if we can tell how it vibrates and all those things and also change the
frequency setting to low for my data recording because I think it’s gonna
give me more accurate readings. The high frequency one
seems to be way too noisy to try to parse what
the actual difference is in the vibrations in all of them. So, here we go, take two. (upbeat music) Alright guys, so here it is. We just got it lowered, I haven’t done the test yet but I’m gonna go turn up the
data collection tool I have and the other cameras and everything, we’re gonna go for that. But just take a look at this, look at how sick this is now with the 20 inch wheels
from EV Wheel Direct and the lowering kit from here in L.A. at Unplugged Performance. I’ll have a link to this
down in the description below as well as, they’re
going to be giving away a free set of these springs
to lower your Model 3. – Oh, Snap! – So make sure to go sign up for that down in the description below. There’s a link there and you
sign up for their email list and you get entered to win a free set of these lowering
springs for your Model 3. So take a look. (upbeat music) So I’m in the car firing up VibSensor. Okay, good to go. Gonna fire this guy up
when we get over there and then I’ll try to maintain
my speed and everything. Let’s do this. (upbeat music) Alright guys, so I just
finished the second test. It feels smooth, it feels
much softer than it did before so I think it’s a win and obviously the looks are
just a thousand times better. That big gap before really felt
odd with the 20 inch wheels. So definitely liking that I’ve even seen some other
cars they’ve done here that don’t have 20 inch wheels, they have the sport wheels and it looks also a lot better. So I think this is the sweet spot here of an inch and a half
lower than it was before which gives it enough clearance to where you don’t really need
to worry about it too much but it also gives it a better ride, a little bit better aerodynamics and the springs themselves
are a bit more advanced. I’ll put details in the
description down below. Now let’s go take a look at the data and see what it has to say. So when we look at the just
basic vibration analysis in the time domain, what you essentially have is
a sampling of the frequency and this is converted into hertz. So they actually take a sample
and there’s a specific way that VibSensor does
this but they convert it into a measure called hertz. And I won’t get into all the details of how this actually works but I do wanna call out one
type of chart in particular and this is the Power Spectral Density because this is the one I’m
using for my analysis here. Now, this has to deal with
how it’s actually done when a lot of engineers are
measuring vibrations of things like aircrafts or car engines, et cetera. So you can kind of see
that it helps normalize the vibrations against time so that way you can compare them which is essentially what we did here. I took the two different tests and used this chart based on the frequency to see them side by side and see what kind of
trends they’re giving us. So when we do that, the frequency
analysis of the two trips I took show a pretty different story here. On the before, you can see that the Z axis which is calculated using
a very specific mean but it is essentially
the up and down motion instead of the X and Y,
this is the third dimension, it is pretty high. It kind of goes up as the
frequency is in the lower range and then it drops back down and the after, the second trip, this is after
I had updated the springs, is quite a bit lower. So, overall, here’s what
those trends look like next to each other. So it’s pretty obvious that
the new set of suspension that I got on my Model 3 had an impact. That led me to the question of well, how much of an impact? So what I did is i looked at
the overall average vibration, that Z score that I got in the
app for the different trips and I could see that the after, the second time I did
it on the same route, the same day, in fact,
with the exact same car, wheels, and all those things, it was almost 20% lower. Meaning there was 20% less bumpy and it was noticeable
when I was in the car. So to me, this data tells a real story and I love that my perception
that I felt in the car actually matches up with
what the data shows. Now, of course there are more
scientific and better ways, I am not an engineer
that works on suspension so there are obviously different
and more controlled ways of testing this. But here is some real
world data that I took in addition to the kind
of qualitative feel that I got just from driving it around. So I’m interested what
you guys think about this. Leave me a comment down below and I may follow up on it to see some of the other benefits such as the dual mode
aspect of these new springs which actually harden up a little bit and give you better
handling as you corner. This test was merely about vibration and the overall comfort of the ride. So I hope you guys liked this video, stay tuned for more like this coming up and don’t forget, when you free the data, your mind will follow. See you back here next time.

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