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Upgraded Rotors And Pads On Gtr33?

Sayajin
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Sayajin Collaborator

Sayajin

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Posted

Okay guys. So I cant afford to spend another $4-5k on my big brake kit after spending a little over $25K on my build. But I need to be able to stop.

I know that they make an upgraded rotor and pad that uses the standard GTR caliper and such, I just dont know any info about it. If someone could give me some info about upgraded rotors and pads for the GTR33 that uses the stock caliper I would greatly appreciate it. Thanks a lot guys.

-Sayajin

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ferni Grand Master

ferni

Posted
Posted

what kind of power do you have and what do you use the car for?

DBA make slotted rotors for the stock brakes. DBA4000 or DBA5000 2 peice.... as for pads, if its a street car, DS2500 aren't bad, or track DS3000....

RDA also make slotted rotors for stock brakes, but i've only used DBA.

tjandriesen Proficient

tjandriesen

Posted
Posted

I'm upgrading the brake on my R33 GTR presently. From what I have found, and thanks to lots of advice from many on here, there are a few things you want to look at:

1) Rotors - DBA's are used by many and if the regular track guys like them (they seem to) I consder that a strong endorsement. Prices run around $500 a pair for the 4000 slotted. You can pick up some Japanese rotors but because of weight (shipping) you'll pay up.

2) Pads - Plenty of discussion on pads. Ferodo 2500's do seem to have a lot of fans. I'm giving Nismo S Tune pads a go. Pads will cost around $250 -350 depending on which flavor

3) Braided Lines - Pretty easy upgrade performance wise and another $250-350. Look nice as well.

4) Master Cylinder Stopper - See a lot of Cusco stoppers but UAS also makes one. $100-150 or so.

5) Air channels/vents - If you are going to be on a track they add a lot in terms of cooling. Nismo just discountinued theirs. UAS is talking about offering one. Not sure what they will run price wise but the Nismo one was sub $200.

Do the maths and this approach will cost $2,000-2,500. Next step up are various brake upgrade kits which I haven't looked into. They will get you 4 / 6 piston calipers along with larger discs. I'd take a look at the UAS website. Think Just Jap may also have a group buy to check out.

My car has Brembos so I'm happy with those and don't feel the need for the bigger step up.

Sayajin Collaborator

Sayajin

Posted
  • Author
Posted

Hummm... anyone ever heard of G4 Racing Kit?

I was looking on justjap.com and they seem to use the kit.

It is an EIGHT piston caliper kit for about $2200.... you cant beat the price for 8 pistons.... anyone heard anything about them?

http://www.justjap.com/g4brakekitinfo.htm

-Sayajin

spilmer Collaborator

spilmer

Posted
Posted
ap or brembo or alcon kits.

well worth it. and wont crack in half at the track and wont eat threw pads quick either

Ignoring the kits (that cost thousands of dollars) and the fact that he wants to retain the stock brembo calipers, what ROTORS would you suggest if not DBA ?

tjandriesen Proficient

tjandriesen

Posted
Posted

In looking around both Endless and Project Mu have rotors that I considered. They were priced at a premium to DBA. At the higher end, Nismo rotors (front only) are $550 each. You will notice that most of the aftermarket parts companies make thier 2nd tier (above entry level) rotor for front only for GTRs.

TO4GTR - I take it you have a bad experience with DBA's? What happened?

Ant97GTR Grand Master

Ant97GTR

Posted
Posted
The only rotors ive ever seen cracked at trackdays have been DBA's.

While this has been true for the 4000 series rotors with the stupid 'wiper' slot design, I am yet to hear of a 5000 2-piece rotor crack after track use.

ferni Grand Master

ferni

Posted
Posted

I've had a couple of sets of DBA4000's, neither cracked.. just wore out.... I'm now trying DBA5000's...

And yes i forgot about the braided lines and master cyl stopper...

Air deflectors are next on my list to look at...

and Sayajin, just because they have 8 pistons doesn't mean they are better than a 4 or 6 piston caliper. I haven't used them, but i think i'd prefer to pay a bit extra for an Alcon kit or something....

djr81 Grand Master

djr81

Posted
Posted
I've had a couple of sets of DBA4000's, neither cracked.. just wore out.... I'm now trying DBA5000's...

And yes i forgot about the braided lines and master cyl stopper...

Air deflectors are next on my list to look at...

and Sayajin, just because they have 8 pistons doesn't mean they are better than a 4 or 6 piston caliper. I haven't used them, but i think i'd prefer to pay a bit extra for an Alcon kit or something....

Ferni,

Did you have any joy getting information out of PWR about the Alcon calipers? I wanted to know the piston sizes etc for their 4 pot gear & couldn't get an answer. Their website has SFA also.

ferni Grand Master

ferni

Posted
Posted
Ferni,

Did you have any joy getting information out of PWR about the Alcon calipers? I wanted to know the piston sizes etc for their 4 pot gear & couldn't get an answer. Their website has SFA also.

Naaa, I was looking at the kit from UAS, but decided to try to make stock brakes work for now.... perhaps UAS can help you out?

NYTSKY Grand Master

NYTSKY

Posted
Posted
The only rotors ive ever seen cracked at trackdays have been DBA's.

I bet they were crossed drilled.Slotted ones are the best choice.Gave mine a hiding on my old car,no signs of failure even with harsh pads.

benm Grand Master

benm

Posted
Posted (edited)

I've seen atleast 3 sets of DBA4000 slotted rotors cracked, the most recently was at Wakefield Park on a 300zx which was cracked almost entirely through the hub.

Edited by benm
Roy Grand Master

Roy

Posted
Posted

I never had a problem with my last set of DBA 4000 rotors. They were 324mm and they lasted over 5 years. They were still fine but i replaced them at 30mm thickness while i had the cash.

I am now happily using another set of DBA 4000s on the front. I understand others have had problems....but i dont think any ppl in Voc have been having trouble with their 4000s or 5000s. None.

Perhaps those that have cracked are a function of not being warmed up or cooled down properly.

Anywya, if not DBA i personally wouldnt use RDA for anything but street application, in which case DBA will definitely be fine.

Of the others i have seen Project U look like a nice enough rotor. What is the problem with just using replacement Brembo rotors...and if need be have your local brake place slot them

ferni Grand Master

ferni

Posted
Posted

DBA say if you don't bed the rotors in correctly they have a chance of cracking. Ie if you bed in new pads (big hard stops) with brand new rotors, then they may crack... so you should always bed in new rotors with very light driving to get a few heat cycles through first.

Having said this, i bet now my DBAs crack next time i'm out there :/

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