FYI - no fuel cut on 2017 MT BRZ's (burnout content)
 

A friend of mine had thought that the new 2017 cars may have introduced a fuel cut "feature", when applying the brake pedal at the same time as the gas pedal. Much like a lot of cars have these days for safety reasons.

So, naturally I put the theory to the test, because why else would we be giving the car gas while braking? Well, brake stand burnouts of course :) FYI I did this with pedal dance mode on. Skip through to about 6:00 minute mark if you just want to see the smoke :burnrubber:

[ame="https://www.youtube.com/watch?v=EXy8tiYJSuI"]BRZ burnout challenge part 2. Can a BRZ do a burnout? - YouTube[/ame]

Ha. After I looked into it further, the BRZs have brake assist but not brake override.

LOL! Pleasantly useless. Nice test.

that exhaust sounds great.

When you say 'pedal dance mode on' you mean you just used the 'off' button right?

No, I did the "pedal dance" combo of ebrake+brake pedal to disable everything.

I was under the impression that on the 2017 cars when you held the Off button for a couple of seconds it disabled all the nannies?

see below...
http://i.imgur.com/fk9oNZ8.png

I thought you have to hold down both buttons for mode 4? You are right though, you can achieve the same mode as pedal dance with the buttons.

On my old FRS, I did pedal dance because of the brake LSD interference. So, I just do it on the BRZ out of habit for stuff like this.

There was some rumors/chat on the older cars about pedal dance vs button disabling and how ABS changes with that. Never was able confirm.

I actually started using the both button disabling method for racing on the 17.

Right so from a normal start you are in Mode 1. To get to:

Mode 2: Short press of the Off button
Mode 3: Press and hold (1 sec) "Track" Button
Mode 4: Press and Hold (3 sec) "Off" Button

And heres a confusing diagram to move between the modes.

http://i.imgur.com/OrHNinN.png

What exhaust? All I heard was brostep.

hehe brostep :lol:

It's a Tanabe Concept G

If you want to hear more sound, I did that in another video. [ame="https://www.youtube.com/watch?v=MVzzv1HVDo0"]Tanabe Concept G exhaust install on 2017 BRZ[/ame]

I also read from a good source that they had a fuel cut feature. What sequence did you do exactly with the throttle/brake?
Because it's only when the throttle is already pressed, and then you apply brake. There is no fuel cut if the brakes are applied before the throttle (so heel-toe work).
But I'm guessing you pressed the brake after the throttle, so i'm puzzled

Maybe you need to go a certain speed for the fuel-cut to engage. Or have the nannies on. I'll have to test that.

I clutched dumped it at 7k rpms then moved my clutch foot to the brake. Maybe the fuel cut is silently disabled with pedal dance? You can test it out :p

So what exactly does brake assist do? I know it does the brake LSD stuff and for traction/stability, is that it?

No, the '17s don't assist the diff anymore with the brakes. Brake assist "helps make sure maximum pressure is applied to the brakes as quickly as possible in an emergency situation."

It's basically a progressive curve on your brake pressure. It's not an active system nor a system that can be turned off or altered. It's also nothing you'll notice, especially autocrossing.

I just tested flooring the throttle while rolling at 30mph (at 3000rpm approx), and then moderatly pressing the brake, and like you, no fuel cut. And I kept all stability control fully active.
That's strange, I'm sure I read it in the manual or something.
Maybe it's only when you press the brake really hard, like in an emergency situation.
Anyway I'm kinda glad, less nannies make me happy :D

There is no brake override system on the BRZ. It's on other Subarus to prevent accidental acceleration but it's not on BRZ, WRX/STI.

Not to contradict you, because you may be right, but here is an excerpt from page 166-167 of the 2017 manual:

If the accelerator and brake pedals are depressed at the same time, driving
torque may be restrained. This is not a malfunction.

Of course they could be stating the obvious (when pressing the brake the car will accelerate less...DUH!! :bonk:). But some people, me included, deduced that meant that engine torque is reduced. Of course the test that Justin did, and also mine, suggest there is no override.

Damn SOA peeps needs to get their ___ together ;)