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Roy Grand Master

Roy

Posted
Posted
Car Model: R32GTST

Year: 1990

Rim size: 17 X 8

Rim name/type: Speedy Hollow Type R

Rim offset: +35

Rim internal diameter: 410 mm

Front Brake brand: R32GTST M Spec

Caliper size: 4 spot

Disc size: 340 mm x 32 mm DBA 5000 Series

Pads: Hawk

Any problems with pad wear or coverage with this setup? Any pics? DBA have told me that the reason my DBA4000s cracked is beacuse i am running the GTSt caliper (intended for a 280mm rotor) on a 324mm rotor so the pad depth on the rotor causes thermal issues within the rotor. Result is a crack. Personally i think its their get out of jail argument...it has merit on paper but there is no way i think thats the contributer to why their rotors crack with track work

Angus Smart Grand Master

Angus Smart

Posted
Posted (edited)

Car Model: R32 Gtr

Year: 1990

Rim size: 17x9

Rim name/type: Volk gtu, Desmond somethings, enkei po1's

Rim offset: +22

Face type:

Brake brand: Brembo F50

Caliper size: Big 4 spot

Disc size:

Rim internal diameter:

Pads: Mu secret level max 900's (overkill.. i know..)

will fill out rest when i get home

Edited by Angus Smart
wrxkilla Mentor

wrxkilla

Posted
Posted

Car Model: R32 GT-R

Year: 1994

Rim size:18x10

Rim name: Work Meister S2R

Rim offset : +15

Face type: wtf?

Brake brand: Alcon 4 pot

Caliper size: ?

Disc size: 355mm

Will measure innerdiameter of rim and post up.

cheers

Kaido_RR Grand Master

Kaido_RR

Posted
Posted (edited)

Car Model: R33 GTS-T

Year: 1993

Rim size: 17x8j

Rim name/type: NISMO LMGT-2

Rim offset: +38

Face type: -

Brake brand: Ap Racing

Caliper size: 4-pot

Disc size: 332 (endless)

Pad: Endless

Rim internal diameter: -

Edited by [Michael]
Sydneykid Grand Master

Sydneykid

Posted
Posted
Any problems with pad wear or coverage with this setup? Any pics? DBA have told me that the reason my DBA4000s cracked is beacuse i am running the GTSt caliper (intended for a 280mm rotor) on a 324mm rotor so the pad depth on the rotor causes thermal issues within the rotor. Result is a crack. Personally i think its their get out of jail argument...it has merit on paper but there is no way i think thats the contributer to why their rotors crack with track work

Note 32 mm thick x 340 mm DBA 5000 series rotors, ie, not a Skyline rotor. The R32GTST M Spec calliper is the same as an R32GTR calliper, except the GTR legs are 8 mm longer ie; the pads are the same. So a more valid comparison is 296 mm versus 324 mm in your case. That's 14 mm radius, hardly a big deal as long as you stick to appropriate heat up and cool down procedures. Track days can be a bitch for that, the inexperienced people just don't understand why I complain when they try and make me sit there stationery on pit entry. For additional capacity, the 5000 series are the go and 32 mm is available in 324 mm.

Cheers

Gary

Roy Grand Master

Roy

Posted
Posted
Note 32 mm thick x 340 mm DBA 5000 series rotors, ie, not a Skyline rotor. The R32GTST M Spec calliper is the same as an R32GTR calliper, except the GTR legs are 8 mm longer ie; the pads are the same. So a more valid comparison is 296 mm versus 324 mm in your case. That's 14 mm radius, hardly a big deal as long as you stick to appropriate heat up and cool down procedures. Track days can be a bitch for that, the inexperienced people just don't understand why I complain when they try and make me sit there stationery on pit entry. For additional capacity, the 5000 series are the go and 32 mm is available in 324 mm.

Cheers

Gary

I take it you are running a machine down 343mm rotor (HSV?) What hat do you use on the 5000 rotor ?

I used this setup for years and never a worry. From some time 2002 to 2006, the rotors i took off where still not undersized, but thought i would change them to new DBA 4000 just to make sure that i didnt have any problems. The new DBA 4000 are RUBBISH compared to what i purchased in 2002. So certainly encourage ppl to go to 5000 as they dont seem to have the same problems...lol they also dont have the same slot design :)

STATUS Grand Master

STATUS

Posted
Posted
Fixed :)

Car Model:

Year:

Rim size:

Rim name/type:

Rim offset:

Face type:

Brake brand:

Caliper size:

Disc size:

Rim internal diameter:

OK i can only go on what i ve tested myself.

Car Model: Any

Year: ANY

Rim size: 17 x 9.5

Rim name/type: URAS NS-01 (copys include doritek etc)

Rim offset: +15

Face type: normal

Brake brand: ALCON

Caliper size: 6 pot

Disc size: 355mm

Rim internal diameter: fk nose :)

Car Model: Any

Year: ANY

Rim size: 17 x 9.5

Rim name/type: URAS NS-01 (copys include doritek etc)

Rim offset: +15

Face type: normal

Brake brand: GREDDY

Caliper size: 6 pot

Disc size: 355mm

Rim internal diameter: fk nose ;)

djr81 Grand Master

djr81

Posted
Posted
OK i can only go on what i ve tested myself.

Car Model: Any

Year: ANY

Rim size: 17 x 9.5

Rim name/type: URAS NS-01 (copys include doritek etc)

Rim offset: +15

Face type: normal

Brake brand: ALCON

Caliper size: 6 pot

Disc size: 355mm

Rim internal diameter: fk nose :D

Car Model: Any

Year: ANY

Rim size: 17 x 9.5

Rim name/type: URAS NS-01 (copys include doritek etc)

Rim offset: +15

Face type: normal

Brake brand: GREDDY

Caliper size: 6 pot

Disc size: 355mm

Rim internal diameter: fk nose :(

You can stuff a 355 rotor inside a 17" rim. Nice work.

Any chance of a photo and or the rim internal diameter?

Sydneykid Grand Master

Sydneykid

Posted
Posted
I take it you are running a machine down 343mm rotor (HSV?) What hat do you use on the 5000 rotor ?

Got it in one on the rotors, I am trying something new this year in hats, I'll post it up once I have tested it out sufficiently.

I used this setup for years and never a worry. From some time 2002 to 2006, the rotors i took off where still not undersized, but thought i would change them to new DBA 4000 just to make sure that i didnt have any problems. The new DBA 4000 are RUBBISH compared to what i purchased in 2002.

That's not unusual, old rotors have all the stresses heat cycled out of them. For the 1993 and 1994 12 Hour races we drove around the streets for a few weeks, cycling the rotors for that same reason. We had not one sign of the rotor cracking problems we had in 1992. Same rotor manufacturer, same pads.

So certainly encourage ppl to go to 5000 as they dont seem to have the same problems...lol they also dont have the same slot design :banana:

I agree, for decent track work, the 5000 series are the go.

Cheers

Gary

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