Big brake kit options for front and rear?

jester5675 · 9th October 2006, 08:51

hey all , so I'm trying to look into a BBK for the M5 using the stock rim set-up. I'm trying to figure out what options i have for both front and rear using the stock OEM wheel set-up. i do know the Stop-Tech offers the front and rear but I'm not really into a 2 piston set-up for the rear....(want atleast a 4piston) Movit offers both front and rear , and i can use a 6 piston(front) 4 piston (rear) but is this my only option...? i really like the AP Racing set-up but they only offer it for the front set-up. i have heard that you CAN use the AP-Racing for both FRONT and REARS, but I'm not sure exactly if this is possible....does anyone know if the AP Racing 6 piston BBK will work for the front and rear....and also does anyone know what other options are available for a BBK using the stock set-up for both front and rear...? any help is much appreciated !!

regards
justin

93 e34 M5
03 e39 M5

cableguy · 9th October 2006, 10:25

I have the Tarox 12 Piston Front BBK which I can thoroughly recommend

, ShawnM5 & myself forwarded OEM Wheels & Hub Assemblies to Tarox in Italy who based this awesome setup for stock wheels.

Performance wise I can only comment on the difference from stock, and the transformation is very impressive, FYI I have also upgraded my rear lines as well as change to a high temp fluid. If any further information is required then feel free to ask away or alternatively shoot ShawnM5 a PM who will be more than happy to answer any questions about the four wheel setup.

Nearly forgot to mention

, this setup looks awesome

, as you can imagine the 12 Piston Callipers are huge and compliment the Slotted Rotors perfectly, they look particularly good coupled with my ACS Type III Racing due to them being a very open design. I will try to get some pics up in the next day or two.

Hope this helps and good luck in your decision.

C.

jester5675 · 9th October 2006, 10:58

Quote:

Originally Posted by cableguy

I have the Tarox 12 Piston Front BBK which I can thoroughly recommend

, ShawnM5 & myself forwarded OEM Wheels & Hub Assemblies to Tarox in Italy who based this awesome setup for stock wheels.

Performance wise I can only comment on the difference from stock, and the transformation is very impressive, FYI I have also upgraded my rear lines as well as change to a high temp fluid. If any further information is required then feel free to ask away or alternatively shoot ShawnM5 a PM who will be more than happy to answer any questions about the four wheel setup.

Nearly forgot to mention

, this setup looks awesome

, as you can imagine the 12 Piston Callipers are huge and compliment the Slotted Rotors perfectly, they look particularly good coupled with my ACS Type III Racing due to them being a very open design. I will try to get some pics up in the next day or two.

Hope this helps and good luck in your decision.

C.

thanks for the info cableguy > so do these fit with the OEM rims...and do you have the rear set-up as well....? also do you know if you can get the the calipers painted in specific colors...? definitely post some pics if you can would love to see how they look ! so 12 pistons fit OEM rims...i always i thought 6 piston was the max > I'm sure they look great - are these rims comparable in price to Brembo,Movit, Stop-tech...? thanks again for the info !

regards

Justin

93 e34 M5
03 e39 m5

cableguy · 9th October 2006, 11:56

Justin, yes these Brakes fit OEM Rims.

There is no hard and fast rule regarding the amount of Piston's used by a Brake manufacturer as to whether they will fit standard wheels or not, it is basically down to the design process on if they will or will not. Tarox specifically designed this system to work with the standrad wheels which IMO would appeal to a much wider audience, some owners prefer the standard wheel setup and others use a larger wheel in summer and revert back to OEM for winter.

Caliper colours AFAIK are in Blue which I have, Red, Silver and Graphite Grey, however much to my liking the Calipers are actually anodised as opposed to other manufacturers painting, this gives a much brighter and hard wearing colour which I am told should never need much maintenance other than cleaning.

I'll post pics as soon as I get chance.

C.

cableguy · 9th October 2006, 12:03

Check out NEW TAROX BIG BRAKE KIT THROUGH CA

C.

mottati · 9th October 2006, 18:48

is this mod mainly just for cosmetics? You can use many aftermarket bbk's with stock wheels and spacers. The nice thing about the stoptechs is you can do it without spacers. I'd do a search on dave zeckhausen's site (look above at the sponsor list) as he knows the e39 well and will list what is needed for the various kits.
Mike

Jayson · 9th October 2006, 20:36

Why do you feel you need 4 piston in the rear? I have the stoptech 4 front and 2 rear and it stops, no problems.

rdm190 · 9th October 2006, 20:50

More pistons does not always equal better stoping power. Even though this car has a near 50/50 distribution, that is a static value. When negative G's are applied durring braking a large portion of the rear weight is transferred to the front.
I would be guessing in the case of the M5 but I would venture to say it goes in excess of 60/40 durring heavy breaking. That is why designers like Stoptech use a 4pot front and a 2pot rear. There is just not a need for equal force front/rear. You want to apply brake force that is IDENICAL to the dynamic weight distribution of the car, not static.

My Audi (a static front bias car) had a 4 pot ST40 Stoptech system, front only with stock rears. On that particular car the front brakes took over 70% of load on heavy stoping. That car stoped on a dime with 0 fade.

aaronmiles · 10th October 2006, 06:35

much much were they (if you dont mind me asking).. comparable to Stoptech and Brembo's offerings?

ard · 10th October 2006, 08:01

Seems to me that the more pistons one has, the smaller they must be to achieve decent pedal feel (too much total area and the pedal mushes)... but the more pistons you have the more seals one has and the more complex the caliper. COmbine that with non- standard, low volume parts and one has a bit of a long term maintenance/ownership nightmare.

I am guessing one will be able to readily get parts for an ST-40 caliper for a few years....

rdm is right- try to resist the 'bigger is better' temptation. Get the best engineered solution. If you really need more brakes, go to 19" rims and larger rotors too.

Where are Tarox parts stocked in the USA?

A

More info:
NEW TAROX BIG BRAKE KIT THROUGH CA