For those with BBKs- AP, Cobra/Z, or other kits with 12-13" rotors, have you noticed any loss of power & acceleration due to the larger, heavier rotors? If so, is it very noticable?

 

i only feel the extra weight when im acc out of slow turns, the extra mass pulls on the tires a lil bit. but i like that kinda thing.

thats with the 12.6 04 max rotors and 00calipers

 

Feels better.
Precision 12.9 w/ Wilwoods.

The whole setup seemed lighter vs stock components.

 

Did anybody actually weigh the stock rotors and calipers and the aftermarket rotors and calipers? That would be a good indicator, especially the rotors.

 

Is there a specific willwood kit for the maxima?? If so, how much $$ does it go for and where can I find it?? thanks

 

I noticed that it canceled out what the UDP did for my acceleration, so I'm back to where I was before the UDP. The brakes are in preparation for something alot faster than what's in the engine bay now.

 

Would you mind posting your dyno sheets and timeslips for comparison purposes?

 

I weighed a factory 4th gen rotor the other day on a home scale and it was about 15 lbs. And I also weighed a cobra mustang 13" x-drilled/slotted rotor and it was about 19 lbs.

 

thats why you buy the 2 piece cobra rotors.

 

I have none to post, sorry. My car is too slow and has too many miles to go to the track or get dynoed.

 

After installing my 2k4 rotor BBK (w/Blehmco relocation brackets) my car seemed (and tested) out to be much slower. We are talking about 6-7 lbs more per rotor compared to the stock 2k1 rotors so the amount of rotational mass on your front end is much greater than prior to having the kit on. Let's put it this way, took the car to the track and run the same times stock w/intake as I did with the 2k4 rotors w/SS ypipe and test pipe.

 

but atleast you'll stop faster!

 

It's not so much stopping faster as it is stopping without warpage.

 

Well then the 2k4 rotors is not what you would want because mine warped like crazy.

 

You can goto precisionbrakes.com and order a set of wilwoods for your maxima for around $1000. I have them and love them, I never really felt any kind of loss with this kit I just know that it stops a hell of a lot better.

 

LOL, that's because you drive a 2004 that weighs umpteen times more than my car.

 

Unless you opt for some really expensive 2-pc rotors, any bbk rotor will be heavier. Why do you think bbk rotors don't warp and stop better?

Question that should be asked. Do they reduce accerlation any more than a heavy set of cheap wheels do. I'd say no. Because a heavy wheel, puts more of it's mass alot further away from the center of the wheel than a heavier rotor would.

That's why I have forged 18" 350z Track editions.

 

It won't be a noticable ,but track time slips would show a differance.

I would still buy them even if they did decrease accel.

 

Just add a turbo and you'll never notice the difference.

 

Nobody has mentioned a difference in acceleration/ braking with Z32 rotors and calipers... that's what I want to upgrade to when the need comes around

 

My 3.5 and weigh in at 2700lbs with the extra what 10lbs is noting for me...

 

OEM size Stillen rotors 15lbs +/-0.5lb and the AP 1-piece rotors were 22lbs +/- 0.5lb per my Wallymart bathroom digital 0.5lb increment scale.

Haven't installed them, so I can't say how much slower I am.

 

i don't think my two piece ap rotors with caliper are heavier than the stock rotor and caliper combo. i should weigh them when i get back in the states

 

I installed a set of twin piston calipers and roters from a junked Q on my 94se
and the weght of the rotors did not feel much more, but it realy improved stopping distance way more then before and best part only cost me 30 bucks for evrything

 

I have 04 Maxima IROTORS with Blehmco caliper brackets and TTZ calipers, I warped the rotors a few times now. I also do not like the way my rear brakes do not do ANYTHING. Stopping from verrrry high speeds sucks, especially when turning the rear end gets very loose. Personally with TTZ calipers and Hawk pads, my OEM calipers and rotors with Hawks performed much better. I can't justiffy the BLING when it slows me down ! IRotors for 04 Max are 24lbs each.

 

You're contradicting yourself, actually.
the rear end will get loose when you're using rear brakes while entering a turn. add more front brake (or decrease the rear), and the oversteer during trail-braking will get better.

As for weight of the rotors, it depens on what setup you have.
I've used everything from OE to 2pc racing rotors to the 2004 rotors on my car and notice very little difference in acceleration- whether I'm using my 15lb track wheels or my 26lb street wheels.

You *might* see it at the dragstrip, but elsewhere it isn't going to make a difference.. and taking a FWD sedan to the dragstrip is about as fun as listening to my wife b!tch about how much money I've thrown into this car.

 

I noticed the difference with the larger rotors right away- we are talking extra 10lbs at each front corner here ! I'm very picky when it comes down to power and I can deff feel a difference with OEM brakes being put back on- car deffinitaly accelerates better.

I actually love oversteer, I've lived with a oversteer happy B13 for years- all it needed was punching the go pedal and it would just pull itself out of any "drift". Maxima on the other hand feels like the rear end is just not doing anything, when traveling with 4 people on board I can litterally feel the rear brakes not working and the front end is doing everything- this is when the front rotors warp very quickly also. Since installing the BBK I have put on about 30K miles on it and my rear brakes look like they never engaged, and since I use my parking brake all the time I know both calipers do work. If I never used the parking brake I bet my rear calipers woulda been frozen by now.

Eighter way, my brake kit is for sale in the classifieds section. I like my stock brakes when paired with Hawk pads, even on a track I have no issues with em.