Member
i have this kit on order Brembo Front GT Brake BBK 4piston Red 332X32 Drill BMW for 2K since i am still waiting for it i wanted to see if there are any other options ?
what do you guys have on your e31 now ??
Last edited by russian007am; 03-31-2022 at 12:29 AM.
Member
Will be fitting 360mm e90 M3 rotors with Aston Martin DB9 Brembos up front
Member
I'm happy with Hyper's BBKoB.
Fixes some weakness in the original spec.
Quite good enough for everyday street.
Member
High quality brake pads, Motul 600 high temp brake fluid, steel braided brake lines in place of all flexible brake lines throughout the brake line system. Internally a clean and fully operational ABS pump/valve assembly.Originally Posted by russian007am
( When really going, the ABS system was activating EVERY TIME when on the brakes )
Last edited by CD05001CIA; 03-31-2022 at 04:20 PM.
Member
Are you still in the bay? This summer, I might want to tackle a bbk upgrade.
Sent from my SM-G970U using Tapatalk
Member
Best is a relative term!!
Shortest stopping distance in a straight line?
Least chassis upset when braking while cornering?
Better thermal performance without changing the brake bias?
ETC.
The optimal option is balanced brake bias and thermal performance.
Actually, all thing relative to BEST in vehicle suspension dynamics are connected to BALANCED.
Without a balanced F/R brake setup a larger front brake rotor setup will be overloaded (overheated) by an increase in the front brake bias and often causes brake induced understeer.
Since the typical E31 suspension is already biased toward understeer adding brake induced understeer just further complicates the steering and performance cornering dynamics.
So that begs the question, what is the rear brake setup?
With that, I offer a rear brake upgrade path.
https://www.bimmerforums.com/forum/s...ght=rear+brake
Last edited by m6bigdog; 04-01-2022 at 02:54 AM.
Member
My car has Hyper's BBKoB. Its a well devised setup I think. It works and it looks pretty cool (nothing is worth doing unless you look cool doing it). My only complaint is the front brake cylinders are slightly larger than stock resulting in a longer softer pedal. Most of the time I don't notice it but when I'm hooning it I usually yearn for a stiffer racecar brake pedal.
Member
Not since 3 yrs, but UPS still works.
Archived here in SoCal: 25 bracket pairs, a small collection of NIB rotors, front and rear, a small collection of oem calipers, front and rear, some rebuilt, some waiting.
Summer? I'm not looking for a biz op anymore, but for a single adventurer with some talent, I could dust off the install docs, put together a kit.
***
Re: m6bigdog: BALANCED, rear brakes
Yep, that's what makes it "work", meaning feels correct, controlled and comfortable on the street.
...combined with the factory low-slung.
Y'all would hate more front, absent the other two pieces.
***
Re: LappingLuke: Larger front brake cylinder?
Hyper's BBKoB remounts the existing unmodified front caliper (ATE or brembo-style) to a new radius.
It's the rears that get larger, to BALANCE out what is done up front, and yours has the 42mm in place of the stock 40.
iirc, your ex-Alex840 also stayed solid 12mm rotor, a better choice than my vented 20, because its lighter and still adequate for street.
Member
Thanks for the correction!
Professional HighSider
I have brackets that allow the use of VIPER Brembo calipers and larger 9X M3 rotors
*~*Yamaguchi-gumi Syndicate Member #59,005 *~*
[ Bippu Couture ] ( D_G ) [ FALKEN Tires]
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Very interesting. Which DB9 variant?
Very well said.
Member
The standard 4 piston Brembos. Believe they were fitted from 2004-2012.
Not the calipers used with the carbon ceramic brake option.
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Last edited by petejk; 04-05-2022 at 01:46 AM.
Spitfire980
Im using E60 M5 front and rear calipers and rotors
"Understeer is when you hit the wall with the front of the car, Oversteer is when you hit the wall with the rear of the car, Horsepower is how fast you hit the wall, Torque is how far you take the wall with you."
Member
On my S70 car I have these Brembos.
https://modbargains.com/brembo-big-b...-e31-8-series/
On my old M70 Manual car I had (as Hyper already mentioned) BBKoB. Which is more than sufficient for spirited driving. Tested at limit on Twisties Highway 9 CA at 5 am a couple years back.
Member
Looks amazing.
Buck - 2001 750iL
3.15 Sport Rear Differential - M-Sport Steering Wheel - Bi-Xenon Headlights
B&G Lowering Springs - M-Sport Seats - 15mm Spacers - Muffler Delete
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