Using Stock Gtr Sized Rda Rotors On A Gtt?

[SS8_Gohan]

Hi guys,

was looking at the RDA rotors group buy and had a thought whether i could get R34 GTR sized discs and put them on my GTT, ie oversize the standard OEM diametre...

Not sure of the rears but the fronts are 324 vs 310mm comparatively, but the height difference is only .05mm, which doesn't sound huge but i don't know, could be a massive difference.

Would it be a stupid to run oversized rotors on standard calipers? I thought it might be a cheap upgrade because i doubt there is much difference price wise between the GTR and GTT discs.

If it is possible, would it be a huge headache to modifying whatever to make the GTR sized discs to fit?

cheers,

daniel

[SS8_Gohan]

anyone? i'm looking to burn KRudds money on my car and this might be a place...

my logic at the moment is that the GTR rotor price is VERY similiar to the GTT RDA rotor price, so why not go bigger if it's the same money?

what i don't know is how much of a headache it will be to fit...

[Vincent--TT]

u will need a adaptor to push out the standard caliper mounting position.

but not sure if any on the market.

[Beer Baron]

no you can't. the radius is 7mm different. the only way to do it is to get a bracket to mount the caliper 7mm further out. but you can't obviously as the bolt holes will be more than 7mm. so it would have to offset the caliper to allow you to bolt the bracket to the hub and the caliper to the bracket. considering you are trying to save money, then i would give it a miss. making custom brackets to gain 14mm rotor diameter is not worth the $500 it costs you.

[ylwgtr2]

whats the price on the rotors out of curiosity?

[Beer Baron]

RDA rotors are pretty cheap troy. maybe $200 or so for a pair of slotted GTR sized ones. there is a bloke flogging them on the forum in the group buy section.

[SS8_Gohan]

thanks for the responses guys

I was told i could using something called "dogbones"? that mean anything to anyone?

There wasn't much of a price difference between the GTT and GTR rotors, so that got me keen. I think it was mid $400's all up? (4 discs)

Sounds like it would be too much $$ to make the brackets. Thanks for the info

[bubba]

Dogbones are a bracket that relocates the caliper to suit bigger rotors.

I use some on my 32 to run 324mm rotors with 33gtst calipers.

[SS8_Gohan]

right o, so if i can find some already made for this sort of application then maybe it might be worth it...

where'd you get your dogbones from and were they pricey?

cheers,

daniel

[bubba]

Got them off a mate who got them off his mate who was using them on his 32GTSt racecar.

URAS I think sell dogbones equivalent to mine but they want something like $360 for them.

[Beer Baron]

yes dogbones are brackets, but for good ones your looking at $400+ for them. there is no way you'll find some off the shelf to run a 7mm diameter bigger rotor. it's just not worth it. you could get them made but you're looking at $500. and again it's such a small difference it's not worth it. if you were running 280mm or even 296mm rotors it may be worth it. but 310 to 324 is NOT worth it. if you want to waste some money on gaining 14mm in rotor then by all means dig in.

[SS8_Gohan]

done. Thanks for the help bubba, but ze baron is making sense and i didn't know they were that expensive.

ok, moving on. Thanks all

[_Ryan_]

head down to race brakes, get some dba 4000 series and some RB74's... i have the latter, still saving for the former... supposedly RDA slotted's crack as the slots run to the edge.

[SS8_Gohan]

no thanks. Been to Race Brakes before and will never go back. Harold was a tool, the guy working on my car chipped my rim getting one of the caps off, and basically i was told to run some $600 a pair Endless Ceramic pad to fix my supposed brake issues. So much for a supposed SAU Vic sponsor

And from a few people i've heard the opposite, the DBA's aren't much chop and to go RDA's. And considering how many people have gone through the Group Buys for the RDA rotors, surely a bunch of people would have problems by now if there were issues with them.

I think i'll probably just go with he Group Buy RDA's in GTT size, keep my QFM A1RM pads i've got now (very similar compound to the RB74's i believe, but cheaper) and perhaps call it a day. Maybe get some braided lines as well. Already got a brake stopper thingy.

thanks for all the help guys

[neo32]

how much are the gtt on the group buy

[Beer Baron]

I think i'll probably just go with he Group Buy RDA's in GTT size, keep my QFM A1RM pads i've got now (very similar compound to the RB74's i believe, but cheaper) and perhaps call it a day. Maybe get some braided lines as well. Already got a brake stopper thingy.

best idea of the thread.

[bubba]

done. Thanks for the help bubba, but ze baron is making sense and i didn't know they were that expensive.

ok, moving on. Thanks all

No worries, I'm with teh baron on this too - in my case it was 296mm to 324mm. I put some DS2500 pads in at the same time so I can't say how much better the bigger rotors or pads are but together, they were a hell of an upgrade over the 296mm rotors + bendix pads.

Oh and slotted 324mm rotors look better than non-slotted 296mm rotors

[_Ryan_]

no thanks. Been to Race Brakes before and will never go back. Harold was a tool, the guy working on my car chipped my rim getting one of the caps off, and basically i was told to run some $600 a pair Endless Ceramic pad to fix my supposed brake issues. So much for a supposed SAU Vic sponsor

And from a few people i've heard the opposite, the DBA's aren't much chop and to go RDA's. And considering how many people have gone through the Group Buys for the RDA rotors, surely a bunch of people would have problems by now if there were issues with them.

I think i'll probably just go with he Group Buy RDA's in GTT size, keep my QFM A1RM pads i've got now (very similar compound to the RB74's i believe, but cheaper) and perhaps call it a day. Maybe get some braided lines as well. Already got a brake stopper thingy.

thanks for all the help guys

interesting...

i still havent cracked my RDA fronts, and i rate RB74's over endless SSS(FWIW)