I bet no one has ever discussed this before.

2013 G37S sedan, 3500 miles on the odometer. All stock. Brake pedal is more plush than I would like. What are my options for stiffening the feel of the brake pedal?

 

Make sure that there isn't any air at all in the brake lines by thoroughly bleeding them all in the proper order. Make sure that the fluid reservoir is full.

 

Keep in mind, this car is only four months old; I bought it brand-new from the dealer at the end of February.

Have G37 owners sometimes found that there is air in the brake lines of a brand-new car?

 

I don't recall seeing anyone post about it. but it's certainly possible that there's some air in the lines, even on a new car. If you take it back to your dealership and tell them the issue, it's very likely that bleeding is going to be the first step they take to try to correct the issue.

 

If you end up bleeding the brakes yourself (which is very easy), make sure you gently tap on the brake fittings and hard lines. Sometimes air gets trapped in there and a few little taps can get things moving.

 

I have installed Speed Bleeders on my motorcycles; they're extremely handy.

Does the G37 come with something like this, or are they conventional bleeder screws?

Is there anything out there that's better than Speed Bleeders for facilitating a one-man bleed operation?

 

The motive bleeder makes it a one person job.

Pads and lines can contribute to this too. Replace the rubber hoses with SS lines. Better pads can help too. I noticed this on my bike. Replaced stock lines with SS, bled thoroughly, but still had a somewhat mushy lever. Replaced stock pads with EBC HH compound pads (no bleeding this time), immediately noticed a stiffer lever. ymmv

Edit: I don't care much for speed bleeders. The coating that prevents leakage on the threads wears out after tightening/untightening them a few times. Motive power bleeder is a better investment IMO.

 

Another vote for the Motive bleeder. It's very slick.

 

I have the Russell speed bleeders on mine (i think it was like $60 for all 8). It was very very easy to bleed the brakes after i got them. I have only opened and closed them once, so i cant say the coating will or wont wear off, but JSOLO knows his stuff, so that might be something to watch out for if you do get them.

 

A power bleeder and speed bleeders are both great options. I constructed my own power bleeder for about $25. I have had speed bleeders on my old car for 15 years. They have not worn out or leaked. If threads are leaking, you are loosening them too much. They should never be loosened enough for them to leak. A quarter to half turn is all that's required.

 

I brought up the poor brake modulation feel in a post of observations on the G37 brakes about a month ago. Its not so much stiffer as it is firmness. The G's brake pedal sinks way to much providing more movement that I like. I want an unmoving pedal so that I can modulate braking force by feel not movement. I'm hoping that tossing the rubber brake lines in favor of stainless steel will help a bit.

 

I swapped the stock lines for Racing Brake SS lines that came with my rotors. It didn't really add any firmness to the pedal feel. I think the pads may have more to do with the pedal feel on our cars due to how much the pads compress under load.

 

you can switch out the fluid too, motul provides a much firmer pedal feel