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Brembo Caliper - Things NOT to do!

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24K views 84 replies 30 participants last post by  SHG_James  
#1 · (Edited)
#4 ·
obviously everything works and fits as proven in the pictures. The only issue he had was fitting a 05 rim on a dc5r brembo caliper... ok- buy a spacer and the entire system works fine.

Having the s2k center bore on the rotor is a non-issue, just run the rotor screws torqued to spec. I dont understand where the issue/point of this thread is.
 
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#10 ·
Well if the center hole was not an issue to ME.

All you need for this to work properly, is the following:
Brembo Calipers (JDM DC5R)
S2000 Front Rotors (I used USDM 2001)
7.5mm Spacer to set the wheel back in it's original position. (Since the S2000 rotor is 7.5mm shorter)

And that's it, the 06 Type S Wheel will clear with the spacer 7.5mm spacer.

And that's it, you do NOT need extended lugs for this to work.

Really cheap and effective way of doing this brake install IF the center hole is not an issue to you.

If you look closely at the lugs, you can see where the wheel SHOULD sit, once the spacer is installed. Since the rotor is 7.5mm shorter.
So you're saying that the wheel wil sit in further with the S2000 rotor? i thought the real issue was that the calipers sits further out so the rotor sat the same, so the wheel should be in the same position :confused:

Something like this:
RSX
|__
__|
|

S2000
|_
_|
|
 
#9 ·
would the larger hole affect you if you were running an aftermarket wheel with hubcentic rings?

also, how much does this screw up the bias and what might need to be sourced from an ITR or other cars to maintain stock brake bias?

This seems like a great idea, and cheaper than custom machining a 7.5mm spacer and getting extended wheel studs
 
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#16 ·
i dont think u are understanding it. the S2000 discs arent 7,5mm to the inside. theyr 7,5mm to the outside

but other thing u can do is to maintain the stock rotor and put a 7,5mm spacer at the inside face of the rotor to pull out 7,5mm. and then another 10mm spacer in the outer face of the rotor to have enough room for the wheel to fit without hiting the caliper. or a more negative offset wheel
 
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#28 · (Edited)
#2
Even when you do find the correct rotors, you will still have that issue of a 7.5mm extra on your wheel studs, therefore your wheel is no longer sitting in the same place, since the rotor is shorter to accommodate the Brembo Caliper. So you will have to get a 7.5mm Spacer.
that is incorrect
the wheel WILL sit at the same place with OEM rotors
the difference between S2000 and DC5 rotors is in the offset
it makes no difference to where the wheel sits relative to the hub
if you think about it its like this:
knuckle+hub+rotor hat+wheel
the rotor hat thickness has not changed
what has changed is the offset of the rotor relative to the rotor hat

your problem is the caliper is too thick for the offset and width of the rim you are trying to run

what the JDM DC5R hub/knuckle does is it increases the knuckle thickness pushing the wheel and rotor hat further out (increasing track)
to compensate for this they use a rotor hat that has a higher offset, thus you have more clearance between caliper and wheel
 
#30 · (Edited)
Okay, I got a few responses back. Brembo does not make a rotor that fits the specs we need. Closest there is to it is the S2000 rotor.

I began thinking a bit, however...why couldn't we just use a hub ring inside the rotor to fill the center bore gap?

http://www.1010tires.com/hubrings.asp?gclid=CIGeg-bu4ZgCFQwDGgodHnC-cQ

They make a 69.85 mm > 64.15 mm hub ring that would probably be perfect for the job. Would the material matter? (this one is hard plastic)

They also make some here from Hubcentric that are metal: http://www.motorsport-tech.com/4DCGI/h_centerbore.html

Really, what would be the best size? If the center bore on the s2k rotor is 70.1 and the hub diameter is 64.1, do you want a hub ring with the same exact dimensions or slightly smaller?
 
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#32 ·
After reviewing, I dont blame George to put a stop to this experiment. His set up seems a bit dangerous at the moment only because its not complete. Im sure if he continues it will be perfected but time is a problem as he stated.

Krisen's method with the 7.5mm spacer seems to have worked for him but details are not clear (to me atleast).
 
#39 ·
i just wanted to Comment on this George, thanks for the insight of S2000 rotors mated with the DC5 R Brembo Calipers which makes it a reversible modification.

IMO: S2K hub *Might* work but now you will run into another problem of your 05-06 wheel not fitting since now the hub bore will be 70mm versus the stock RSX bore being 64mm.

so running your 05-06 rims will now be out of the question.

like what enJOY120 was saying running a hub centric ring might be your best bet in resolving the issue of it not being hub centric OR another alternative (which will cost a bit of money would be running a completely custom setup of a 2 piece rotor which can be provided by KVR which i believe is not too far from you since they are based in Ottawa. Have KVR make a custom hub hat that has S2000 specs but with a 64mm bore which i believe it should not be a problem at all for KVR to do since they are made to order.
 
#40 ·
Thanks for your insight, I didn't think of the wheel to hub issue. So forget that.

I like my idea best I think both from a practicality and economic standpoint. S2K rotors + hubcentric ring + 8-10mm wheel spacer after the rotor seems to be the easiest, most cost effective way to do it. I think with the hub ring in place, some properly torqued down rotor screws and properly torqued lugs, there should be no issues what so ever.
 
#43 · (Edited)
I honestly dont see the issue with running the AP1 rotors on DC5 hubs
the two tab screws are there to keep the discs from coming off when you take off the wheel
they are not exerted by any kind of force under braking.

when the caliper grabs unto rotor on braking, the rotaional force is transfered to the wheel and hub assembly primarily though the studs right?
So its the wheel and wheel nuts (properly torqued) that is keeping the rotors firmly in place on the hub and snugly on the wheel studs.

the 64mm hub spigot at the centre is not there to centre the brake rotors, its there to centre the wheels
because the wheels can take a lot of shock from potholes or kerbs and you dont want to transfer that force unto the studs
you want them transfered unto the hub.
 
#46 ·
great idea's but one thing i learned was not to ever mess with custom brake setups especially if piecing together from other cars and using parts which arent meant for the job...i think its just outright dangerous...

good job on your efforts but like george said might as well go with a wilwood bbk...or even just an ITR complete setup...