Where are the VENTED DISCS???
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Where are the VENTED DISCS???
Sorry if I this has been covered, but I performed a search for "Brakes" and "Vented" on this forum but didnt see it covered.
The specs for Track Edition on www.nissandriven.com states:
"BremboŽ brakes with 4-piston front calipers, 2-piston rear calipers, 12.8" vented front discs and 12.7" vented rear discs."
I have never seen ANY photo of the Z with vented discs. Does anyone know if it will truly be vented discs?
Thanks,
Matt
Executive Director
ImportLife.tv
Daytona Blue track edition.
Tri State Area
Sorry if I this has been covered, but I performed a search for "Brakes" and "Vented" on this forum but didnt see it covered.
The specs for Track Edition on www.nissandriven.com states:
"BremboŽ brakes with 4-piston front calipers, 2-piston rear calipers, 12.8" vented front discs and 12.7" vented rear discs."
I have never seen ANY photo of the Z with vented discs. Does anyone know if it will truly be vented discs?
Thanks,
Matt
Executive Director
ImportLife.tv
Daytona Blue track edition.
Tri State Area
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I think you are confused between "vented" and "cross drilled" or maybe even "slotted".
"Vented" means there are fins/spacers in the center of the disk that separate the two faces. You won't be able to see them in pictures.
"Crossed drilled" are when you have small holes at a diagonal in the rotor facing itself. Those you can see easily.
"Slotted" are small cuts in the face, also at a diagonal.
All are ways of dissipating heat
"Vented" means there are fins/spacers in the center of the disk that separate the two faces. You won't be able to see them in pictures.
"Crossed drilled" are when you have small holes at a diagonal in the rotor facing itself. Those you can see easily.
"Slotted" are small cuts in the face, also at a diagonal.
All are ways of dissipating heat
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It's been said that it can weaken the rotor. Will only make a heat difference if you take it tracking. The best all around heat diffusion is vented with slots.
Originally posted by mochase
Any opinions on cross drilled rotors?
I think it would definately look great. Probably brake a lot shorter too.
Any opinions on cross drilled rotors?
I think it would definately look great. Probably brake a lot shorter too.
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Another problem with Cross-drilled is it is difficult (or maybe impossible) to get them turned, leaving you having to buy new rotors when the current ones get warped. I have Powerstop crossdrilled rotors on my 300 and they stop pretty well and I can notice a difference in brake fade between the stockers and the drilled. Still not perfect, the car (300ZX) needs bigger rotors to be any more efficent in fade, and im so glad the 350Z has huge rotors on the standard and track models.
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Heat dissipation is not the reason for slotting or cross drilling disc brake rotors.
The biggest reason is that brake pads w/ asbestos lining material can become fluid (not solid) at high temperatures and in that case there is truly no pad to rotor surface contact. To counteract that phenomena, slots or drills are used to carry that fluid away from the friction surface. The 350 Z Brembo brake pads do not contain asbestos and therefore do not need to be slotted or drilled.
Truthfully, more metal volume in the rotors can dissipate more heat since the brake rotors are "vented" in the center section. The brakes would not perform any better with the specified calipers and pads due to venting or slotting. Those would be completely aesthetic modifications. Most likely, brake fade would increase if you slotted or drilled the rotors because of less material with less heat sink.
The biggest reason is that brake pads w/ asbestos lining material can become fluid (not solid) at high temperatures and in that case there is truly no pad to rotor surface contact. To counteract that phenomena, slots or drills are used to carry that fluid away from the friction surface. The 350 Z Brembo brake pads do not contain asbestos and therefore do not need to be slotted or drilled.
Truthfully, more metal volume in the rotors can dissipate more heat since the brake rotors are "vented" in the center section. The brakes would not perform any better with the specified calipers and pads due to venting or slotting. Those would be completely aesthetic modifications. Most likely, brake fade would increase if you slotted or drilled the rotors because of less material with less heat sink.
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Originally posted by bobbyz
actually, it means that the disc is not solid. if you were to look at the side (edge) of the disc you would notice that it is actually two discs sandwiching vents between them. Kind of hard to explain.
actually, it means that the disc is not solid. if you were to look at the side (edge) of the disc you would notice that it is actually two discs sandwiching vents between them. Kind of hard to explain.
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So stopping distance/performance between the standard and track brakes should be about the same in normal driving (not at the track)? I thought perhaps the Brembos would stop better with the 4-piston calipers in the front. Of course I don't know too much about brakes.
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C&D reported that the Brembos probably won't decrease individual minimum stopping distances compared to the stock brakes which are actually very adequate.
The main differences will be in stopping distances from high speeds and in decreased brake fade with prolonged high performance (track) use.
That's where the Brembos will make a difference.
The main differences will be in stopping distances from high speeds and in decreased brake fade with prolonged high performance (track) use.
That's where the Brembos will make a difference.
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Cross drilling increases the surface area of the rotor exposed to air, which will enhance its ability to expel heat, especially while in motion.
Just make sure the rotor holes are chamfered, to reduce the chances of cracking to a minimum.
Also make sure the rotors you are purchasing were CAD plated AFTER the holes were drilled, to minimize the possibility of rust.
Just make sure the rotor holes are chamfered, to reduce the chances of cracking to a minimum.
Also make sure the rotors you are purchasing were CAD plated AFTER the holes were drilled, to minimize the possibility of rust.
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Thanks for everyone's knowledgeable responses. I am glad this forum is well on its way even before the cars have been delivered!
I simply didnt know about brakes cuz i have never upgraded.
I heard the same thing, unless you are constantly braking/going, like on a track, the standard brakes are just as good.
Since I will be using the Z as a promo car for ImportLife.tv, as well as a daily driver for now, I will probably look into cross drilled rotors for aesthetics.
Thanks again.
I simply didnt know about brakes cuz i have never upgraded.
I heard the same thing, unless you are constantly braking/going, like on a track, the standard brakes are just as good.
Since I will be using the Z as a promo car for ImportLife.tv, as well as a daily driver for now, I will probably look into cross drilled rotors for aesthetics.
Thanks again.
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