Brake Upgrade Question

[Husky33]

Hey guys

Gettin around to upgraded my braking on my r32gts-t(currently running stock with bendix pads).

Now what i have purchased so far are Project MU Type NR front pads, CSC braided lines front and rear and a cusco cylinder brace. Plan to run the bendix ultimates on the rear.

Now my discs look very good, i am pretty sure they have been replaced in the not too distant past. Should i upgrade my discs(front at least) to slightly larger slotted rotors?

Will i notice much difference between these and the stock but in gc discs with the afore mentioned mods.

Just wondering if it is worth upgrading the discs for little gain. Car is a street car with occasional track days and plenty of mountain runs.

[TokyoTaxi]

My 2 cents.

Use what you've got till it's dead ( unless you're planning on getting serious on the track ) and then if you choose to upgrade, do a complete upgrade like R33 GT-R Brembo's + discs etc etc. or UAS package.

I upgraded from R32 GTS-T to R32 GT-R brakes ( discs + calipers ) and would have to say it was not "really" worth it.

[Husky33]

My 2 cents.

Use what you've got till it's dead ( unless you're planning on getting serious on the track ) and then if you choose to upgrade, do a complete upgrade like R33 GT-R Brembo's + discs etc etc. or UAS package.

I upgraded from R32 GTS-T to R32 GT-R brakes ( discs + calipers ) and would have to say it was not "really" worth it.

lol, but arent 32gtr and gtst brakes fairly similar anyway.

I want a package that is insane for the street, and really good for the track(mind you i dont do many track days). I think a brembo kit etc is alot of money wasted that i could have spent better elswhere. My 32gtst is alot lighter than a gtr anyway.

Thanks for the input anyway

[slip]

well your setup will be alright for the street and a bit of track, but not insane for the street and really good for the track as you say. I would just keep what you've got and kill it then upgrade personally.

If I was going to go 'insane' for the street and 'really good' for the track...

DBA 5000 rotors (as big as you can fit under the wheel really) front, slotted/vented DBA (maybe 4000 series) on the rear.

Brembo 4 pots or some sort of 6 pot up front, 2 pots on the back.

All braided lines/master cyl stopper of course

Bias adjuster

Ferodo DS2500 or better front pads, at least RB74's on the back.

[MerlinTheHapyPig]

I would see how you go with current setup before spending money on upgrading (which could be better spent elsewhere)

what tyres are you using? usually tyres tend to be more important, so unless you are getting obvious brake fade i'd be investing money on tyres instead.

Edited June 8, 2006 by MerlinTheHapyPig

[scathing]

I want a package that is insane for the street, and really good for the track(mind you i dont do many track days). I think a brembo kit etc is alot of money wasted that i could have spent better elswhere. My 32gtst is alot lighter than a gtr anyway.

Thanks for the input anyway

That paragraph makes little sense.

If your aim is to have a really impressive braking system that will handle the rigours of your average track day, why are the Brembos a waste of money? Are you scoring a good deal on some other caliper / rotor upgrade?

If you were only after a reasonable street / average track setup then it'd be overkill, but if you're planning to get something that won't fade out on your GTS-t no matter how hard and often you stand on the brakes in a 15 minute session then they'd suit the job.

[Husky33]

Sorry i dont understand. I know that brembo calipers plus big discs etc will give me more stopping power, i understand that. Yet i dont understand how i would get more brake fade with braided lines, new good pads, new master cylinder+stopper and good fluid as opposed to the same yet with brembo calipers?

But anyway i think i have gone around the block abit, my question really was will i notice much of a difference with good stocks discs or new vented slightly larger discs with the same parts stated.

[scathing]

Sorry i dont understand. I know that brembo calipers plus big discs etc will give me more stopping power, i understand that. Yet i dont understand how i would get more brake fade with braided lines, new good pads, new master cylinder+stopper and good fluid as opposed to the same yet with brembo calipers?

You won't get that much more stopping power per se, since the limiting factor in any modern cars' braking system is the tyres. Can you lock up the tyres with the OEM setup? Adding more braking torque won't make them lock up any later....

But what Brembo calipers and larger rotors give you is more heat dissipation. The larger rotors have more mass to absorb heat, and depending on their manufacture and materials will cope with heat better. The larger pads will give you a larger swept area (which once again means the pad heats up less in total), and Brembo calipers tend to be designed with cooling in mind.

This means that if you're doing track work you'll get more laps in at max attack before it overheats. Even with good pads, slotted / cross drilled rotors and nice fluid you can overheat brakes. Especially if you're running semi slicks.

I ran in a supersprint in February at Oran Park GP, when it was about 35 degrees ambient. With A032R's on, I was literally standing on the brake pedal as late as I dared, since the tyres wouldn't lock up due to the grip on offer. Even with DBA Slotted rotors, Ferodo DS2500 pads and Motul RBF600 fluid I managed to fade my brakes out on the 5th lap...and that's only around 7.5 minutes. If I was there for a regular track day doing a 15 minute session, my brakes would have only lasted half the session.