Flexing Throttle Pedal
 

Not sure if this is the right subforum, but is there a fix for the throttle pedal's side to side play? I can feel the pedal move from side to side and when I had a pedal spacer, the pedal would move/slip to the side of the raised pedal stopper. I've placed grip tape on the pedal stopper and the back side of the throttle pedal. Didn't help much.

Welcome to sports cars on a budget :) It's normal. Shouldn't be, but it is. Buy a BMW - bottom mounted pedals don't do this.

I know it's normal but I'm surprise there isn't a fix or more of an issue. Here's a video clip of my last autox which highlights the problem. I've since removed the pedal spacer.

[ame]https://www.youtube.com/watch?v=j9wmWun_7mM[/ame]

That doesn't look normal to me. 0_o


Pull that sucker out and inspect it. Two screws and a connector.

Well, the pedal on my 2013 FR-S sure doesn't do that - :iono:

I agree, something is wrong with the pedal on your car.


humfrz

Do you guys have a pedal spacer? The issue is only apparent when you use a taller pedal stopper (to be used with the spacer). There is a notch on the bottom-back of your OEM pedal, with the the side-to-side play inherent with the twins, that notch (and pedal) can slip off the taller stopper. With the OEM stopper, since it is more of a flat surface, the pedal has no where to fall to and you don't really notice.

taller pedal stopper...
https://live.staticflickr.com/65535/...fda740ab5b.jpg

OEM pedal stopper...
https://live.staticflickr.com/65535/...2540946ca4.jpg

Taller pedal stopper installed. You can see the notch on the bottom of the pedal. On the video the car is loaded on the left, and with the throttle pinned, the pedal has enough play that the notch/pedal slips to the left of the stopper.
https://live.staticflickr.com/65535/...21e6f1b7c9.jpg

That was kinda scary. Almost moved enough to get caught behind the brake pedal.

I wonder if @VerusEric has any insight.

We have not noted this on either of our shop cars (FRS/BRZ or WRX) and none of our customers have noted this issue either.

I went out to my car and hooked up a load gauge to see how much lateral load it would take to move the pedal roughly this much (guessing from the video posted above). It requires roughly 25 lbs laterally... the way I personally drive I do not believe I push on the pedal laterally more than a few pounds. The movement is in the throttle pedal assembly itself... I don't see how there is much that can be done to strengthen this as the movement appears to be internal but I will review it a bit more later today.

https://i.imgur.com/Y0Cjkva.jpg

Thanks,
Eric

That's some fast data acquisition! :thumbup:

Thanks @VerusEric!

Wow, I think there is something wrong with your pedal.
I have the Verus pedal spacer, and the pedal never slip out of the pedal stopper.
There is some side to side play (not caused by the verus spacer). Probably because the pedal assembly is made of plastic. But you seem to have a lot more play than me.

There are factors in play.. Do you have your spacer set so the pedal is closest to the brake pedal? Are you racing in an autocross or track environment where you are full throttle at corner exit? I really doubt that anyone will notice any movement on the street, IMO.

I'll buy a new pedal assembly and test. I don't think my pedals are any different or worse, but I'm going to check other FRS/BRZ pedals in my region.

If this is the complete set up with assembly, it's cheap enough just to test.

https://live.staticflickr.com/65535/...61699ab6_z.jpg

Take apart the assembly before buying a new one. There’s a little white tap that “locks” the pedal in the correct orientation. Try to see if that’s not destroyed.

Yes I autocross and some HDPE. But I don't have the spacer set to the closest to the brake. That won't increase the play in itself, but I can see how that may put the pedal to the edge of the stopper, and so easier to slide off.
But I watched your video, and my pedal doesn't move as much, but there is some play. Maybe with age (and aggressive pedal input), the assembly slowly wear and the play increase (my car is only 2 years old).