First Problem With my 370Z

ImportConvert

I take 5 corners in 13 miles on the way to work. Exactly how spirited can you get given the above!?

Yes, there is another dealership, but so far this one has been very accommodating and agrees that the problem is BS and should never occur on a street-driven car where the owner is getting 17K+ miles out of the OEM tires and showing even wear on front/rear tires and pads.

Chuck33079

Then I don't know what to tell you. Maybe you got a bad one.

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roy'sz

You could be suffering from a caliper failure where it is slow in response to pressure and the relief of it. Have you thought of Nissan looking into it? Is it only on one side or are both warped? Im not trying to be prude either but comparing sedan brakes to 4piston brakes is like apples and oranges. 99.9% of sedans have floating calipers in comparison to fixed calipers. When you have a fixed caliper the sensation or warped rotors is more evident or apparent then on a floating caliper. The reason you cant feel it as quickly on a floating caliper is the caliper is able to move and not get any binding from the rotor forcing the caliper inwards or outwards (hope this makes sense).

Also since you brag about your time of 13 minutes (which is cool by any means to brag about times) how much time do you have before you park your car? Is it city driving where you don't have 10 minutes of non brake driving to cool the rotors down? If not that could be the most probable cause in the rotors warping. These cars are designed to take a beating, but HEAT is the most common problem in all aspects:brakes, engine, tires etc.

I'm 28 and have owned 2 mustangs, 2 sentras, 2 ford rangers, 1 Toyota Tacoma (big brake kit) and 1 370z. Only 2 have had 4 piston calipers and my experience with brakes is pretty spot on being that I have glazed rotors and warped them myself too many times to count when I was under 22. Take an honest look at your driving characteristics and maybe there could be probable cause there rather than it being mechanical? Also if you google image search the brembo kit on a mustang it is exactly the same style caliper. Just a fyi all 4,6,and 8 piston brake kits are FIXED calipers just like our Z's.

Hope this info helps.

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ImportConvert

I said 13 MILES. Five corners, and a maximum of 7 stops. Most from under 50mph.
Point well taken on the calipers.
No other car I have owned has done this. Maybe 370z owners can retrofit ten year old sentra brake kits, or just get into a real car. I'm going to heckle Nissan until they lemon the car, or I break even and trade up. Or they somehow fix it. Other than that, this is crap. What do you get, like 30 seconds of track time per rotor!? Lmao. This is a family car with two seats.

Fishey

Your problem most likely has nothing to with the brakes at this point.

Have you checked your steering rack or ball joints/control arms.. I have seen both cause a vibration under braking. Also, they make gauges for caliper pressure to ensure the calipers are working right any dealership/reputable performance shop should have a set of them.

Its a solid rotor as you can imagine its quite the same as the side that is machined except you can't tell its warped in a photo that I am sure I don't have because that was from like 2005. I have another warped rotor on the rear of my car right now from exactly the same problem that warped that one. However, I am not going to machine it down simply for internet rep.. The proof you can warp rotors is clearly shown in that photo if you don't want to believe it then continue to live in ignorance.


-Ron

ImportConvert

The problem does go away for a few hundred miles each time the brakes are done.

roy'sz

I understand the 5 corners and 7 stops, but if they are hard stops then that is the root cause. 2ndly if not that then maybe a sticking caliper? one way to tell is if you have a temp gun check the rotor temps when you get done driving it. if you jack the car up and try to rotate the wheels, that is a easy way to diagnose. How is the brake fluid quality?

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https://www.youtube.com/watch?v=RtvG...data_playerARK HFC'S-ARK Grip-Stillen G3-M370-UPREV-Kinetix upper control arm-WC Latheworks-Stage2 Bad@$$ Driver(318whp/268tq)-

ImportConvert

I'll look at the fluid tomorrow. If the brakes can't take a few 60-30's and 45-0's, then why the hell even call it a sports car. Just call it a pos and don't polish the turd. American cars don't have this issue in my experience. Going back to them as soon as I can.

Fishey

370z's usually dont have any issues and the brakes are in generally very impressive for a factory brake system. You have an issue with something other then the pads/rotors or the people doing the work.

ImportConvert

I dunno, the rest of the car has been decent enough, the brakes have totally ruined it thus far, though. I won't recommend Nissan. I won't ever own another one. I want out of this lemon. Pieces of cheap ****.

roy'sz

yeah I think he is right. I would give it one last shot with the oem parts and do a full brake flush on the car before writing Nissan off. It could be the technicians that are incompetent and not necessarily your driving characteristics. Hope that this problem can get resolved either way so that if it happens to another forum member we can use this as a learning lesson.

I was thinking of going with a upgraded rotor/pad set but after seeing some of the stuff import has gone through I am definitely reconsidering that thought.

Hey import if you have time try to jack the car up and rotate the fronts. Pump the brakes a couple of times before that to see if it seizes. also check the quality of the fluid.

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https://www.youtube.com/watch?v=RtvG...data_playerARK HFC'S-ARK Grip-Stillen G3-M370-UPREV-Kinetix upper control arm-WC Latheworks-Stage2 Bad@$$ Driver(318whp/268tq)-

ImportConvert

I'll look at the fluid tomorrow. I know I said that yesterday, but after 12 hours of work and running 5 miles, I forgot about it. The techs working on the car are alright. They are GT-R certified, and the service manager has been in the business for 20 years and has a very good reputation. I don't think they are missing anything obvious.

If my driving style is the issue, I want a refund on the "sport" package, and Nissan needs to change their product brochure to reflect that stopping should not ever occur from above 50mph, nor brake pressure exceed 25% capacity.

The first time I wrecked my OEM rotors/pads was a panic slow on the freeway when some idiot tried to run me off the road. Call it 70-40 pretty quick. Then back to freeway speeds. Ever since then...that was the first time I actually "stabbed" the brakes.

Did it again a while back after they fixed them from 40mph trying to sling the phone that fell and dropped forward from under the seat so I could pick it up at the next stop-sign. Yep. You guessed it. Warped again immediately.

Any time you use the brakes at any real capacity, this piece of crap warps them.

red2010z

Hmmm I drive my Z like I stole it and I don't have any issues. I blame it on you being in crappy Louisiana.

I'll never own another American car. Reason 1 everybody has one 2. re-sell is crap.

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ImportConvert

1. I agree, my state sucks. This might well be the problem. It's why I'm leaving. I have some Class III stuff pending with the BATFE which is why I haven't already. After my SOCOM suppressor and 300BLK SBR clear, I'm gone.

2. Everyone has one...for a reason.

3. I'd like to keep a car until the wheels fall off for once. I've tried doing that with my past American cars, and it happens at well past 150K miles or so when I normally sell them. My import lost its transmission, motor mounts, and a host of other things at around 100K, and this import hasn't made it past 10K before having issues that are still plaguing me at 20K. While looking at SRT products, and remembering what I sold my 'vette for, and looking up KBB on this 370Z, I strongly refute your statement about holding value. The 370Z doesn't for **** compared to other domestics that I have owned or that appeal to me.

Cuban Z

Couldn't disagree more. Yesterday I bottomed out on the 405...I still love this place. Do we have our problems? Do some of our roads suck? Did our ball team choke this year? Yes, Yes, and Yes. But like Ice Cube says..."there ain't nothing else like LA." There are many, many worse places to live than on SoCal...especially for a car guy! Not trying to start any ****, just offering a different perspective on our great state and city for anyone not familiar with it.

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