Steel rotors on 370z?

Botaine

I read that the 400z proto will have steel rotors. Does anyone know where I can find them for a 370z base trim and how much difference they make? If not can anyone point me to the lightest rotors they know of for the 370z base trim? Thanks

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OptionZero

Proof that a little knowledge can be a dangerous thing

The brakes on your car now are fine, bro. Stop at red lights and stop signs, look both ways before crossing. Signal before turning. Recycle.

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Botaine

I think my brake pads and rotors will need to be replaced soon and wanted to find something good for the purpose I use the car for on the street. It is my understanding that a big brake kit only helps with repeated high speed stops (over 10). I don't track the car so I'm looking for some other kind of upgrade since my rotors probably need replacing soon anyway. Reducing the rotating weight (with lighter rotors for example) would probably improve things.

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Rusty

If you want to up grade the rotors. Up grade the calipers too. Most people with the base brakes go with the 'bono calipers with stainless lines.

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Botaine

In what way exactly do the akibono calipers improve braking? I think the braking distance will be the same because I can lock up the rotors already with stock calipers. Will it make high speed braking more stable or reduce judder? Or is it mainly to help keep the brakes cooler, to allow for more stops without losing braking distance?

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JARblue

That makes absolutely no sense

The sport package brakes have an extra piston in the calipers along with bigger pads and rotors vs the base brakes. The extra clamping force and larger pad contact surface area contribute to significantly improved braking capabilities.

Different tires and their wear condition can also significantly impact braking ability.

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Botaine

I'm guessing the improvement is only during high speed braking then, in situations where the rotor is rotating too fast for the calipers and pads to stop it completely. Once the calipers and pads are able to stop the rotor, it is up to the tires to stop the car.

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JARblue

If you're suggesting that the sport package brake setup with Akebonos does not provide greater braking capability than the base brakes at low speeds, that is incorrect.

The difference will be less at low speeds and greater at higher speeds. Whether that difference is worth the cost to upgrade is entirely up to you. But there is a difference. Simple physics at work here.

The tires and brakes work in tandem to stop the vehicle. Not one then the other as you have stated above. If the calipers stop the rotors before the vehicle stops, you're locking up the brakes which means they are not able to do their job as intended.

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JARblue

Just get some replacement rotors and new pads for your base setup and call it a day. There aren't really any options for you to upgrade elements of the base setup without moving to a larger kit. Pads are about the only variable to choose.

If you get the Akebono setup there are some lightweight options, such as the Z1 two-piece rotors.

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tRidiot

I've got a stock set of the big brake rotors barely worn I can sell you. I just replaced mine with new drilled and slotted rotors and my mechanic mic'd mine and said they were still great, they're just sitting now.

cv129

Trying not to make assumptions here…..what exactly is your usage of this car?

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Botaine

Really just want some improvement in stopping ability and smoothness on the interstate. Daily driver but I drive fast sometimes.

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JARblue

Your brakes shouldn't be affecting "smoothness" Turn or replace your rotors if they are shuddering during braking.

Go full Akebono or just get some decent street pads. Your stock setup should be fine on the street as long as you're not an idiot. The Akebonos will give you better performance at fast speeds.

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cv129

Smoothness…..if you have judders during regular braking, you highly likely have pad deposits on your rotor. Be light on the brake pedals at stop light on hot days.

For commuting, you won’t feel shxt spending that money. For your use, objectively, at the most, I would switch out to a slightly sportier pad that has better bites and heat tolerance for that one-time emergency stop on the interstate (but will get way more brake dust thro).

Functionally, I don’t see the need for any upgrades.

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TobinH

pretty sure OP is asking about steel vs iron rotors in regards to reducing unsprung weight.

sort of an interesting subject if you want to do some reading, but irrelevant for the use case described here.