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MGB BRAKE UPGRADES

Posted by ReeceODR


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MGB BRAKE UPGRADES

#1

ReeceODR Reece O

X, Surrey, UK MGB BRAKE UPGRADES : MGB & GT Forum : The MG Experience (6)

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Topic Creator (OP)

Jul 2, 2018 10:48 AM

Joined 7 years ago

45 Posts

Hi I am looking at upgrading the brakes on my car and I've seen that the MGOC sell an MGRV8 kit for the MGB consisting of rv8 callipers which are 4 pot and bespoke disks. This costs £325
Will this make a big improvement over original brakes i.e is it worth the money. Thanks

1974 MGB GT


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Re: MGB BRAKE UPGRADES

#2

RAY 67 TOURER Ray Marloff

Fort Bragg, CA, USA MGB BRAKE UPGRADES : MGB & GT Forum : The MG Experience (9)

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1967 MG MGB "My Girl"

Jul 2, 2018 04:40 PM

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The biggest difference will come with repeated stops due to larger disc size. However, under normal driving, the stock B brakes are more than adequate. Is there something that isn't up to snuff with your original braking system? Here is where I'd start looking before plunking down that kind of money on an upgrade. It may well not be needed at all. My '67 B, with the stock braking system, stops as well as almost any other car that I've driven over the years. RAY


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Re: MGB BRAKE UPGRADES

#3

ozieagle MGB BRAKE UPGRADES : MGB & GT Forum : The MG Experience (16) Herb Adler

Geelong Victoria, Australia MGB BRAKE UPGRADES : MGB & GT Forum : The MG Experience (17)

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1958 Wolseley 1500 "Wooly"
1966 MG MGB "Bl**dy B"
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Jul 2, 2018 04:56 PM

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Reece,

As Ray said.

If you find that you have to really push hard to stop, then it is a subjective thing, compared to modern cars that put you through the windscreen, if you rest your toe on the brake. If you really want to lessen the foot pressure, get a modern booster with a fairly large boost ratio.

Herb

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Edited 1 time(s). Last edit at 2018-07-02 04:56 PM by ozieagle.


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Re: MGB BRAKE UPGRADES

#4

Ned Ed Stubbs

Stoke On Trent, hanley, UK MGB BRAKE UPGRADES : MGB & GT Forum : The MG Experience (24)

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1966 Other Kit

Jul 2, 2018 06:55 PM

Joined 9 years ago

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Have wilwood alloy 4 piston calipers on mine


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Re: MGB BRAKE UPGRADES

#5

MG Cruiser Keith Delta4

Rockingham, WA, Australia MGB BRAKE UPGRADES : MGB & GT Forum : The MG Experience (26)

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1970 MG MGB "Moneypit"

Jul 2, 2018 11:17 PM

Joined 15 years ago

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I think you can wait a while before MGOC can supply this kit! Keith


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Re: MGB BRAKE UPGRADES

#6

Steve64B Steve Opitz

Phoenix, AZ, USA MGB BRAKE UPGRADES : MGB & GT Forum : The MG Experience (28)

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Jul 2, 2018 11:31 PM

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Reece, if you want better braking then look at these components in order of importance and bang-for-the-buck.

Tires: Braking is all about converting motion to heat... and hard tires will simply lock up and slide under heavy braking. High performance tire are the first step, look for tires with a treadwear of 200 for maximum wear and performance.

Brake Pads: Once you have better tires, then look at high performance ‘street’ brake pads. Brake pads with increased coefficient of friction between the rotor and pad will shorten stopping distance. IF you do this find someone who can put the same compound on the drum brakes as well.

LAST:

Brake Rotors and Calipers: A larger diameter disc has more leverage and can create more brake torque. Multiple piston calipers will increase clamping force. A thicker ventilated disc can hold and then disperse more heat, and contrary to what many think, a cross drilled rotor has been shown to increase the coefficient of friction. BUT, if you make changes to the front brakes... then your brake balance (front to rear) will be out of whack. Nothings free.


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Re: MGB BRAKE UPGRADES

#7

TOE451 Michael Beswick

Ware, Herts, UK MGB BRAKE UPGRADES : MGB & GT Forum : The MG Experience (31)

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Jul 3, 2018 06:16 AM

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If you have good tyres and can lock the front at 30 mph with hard but not jabbed braking the brakes are fine. As others have said upgraded brakes for anything other than track use are unnecessary. B's will always require more foot pressure than a modern. If they improve with pumping there is air in the system. I would suggest checking the whole system thru before spending money on an upgrade. A UK 74 will probably have the inline brake booster which does make quite a difference. If the booster is on the LH front bulkhead it makes little difference in comparison to non boosted braking. Boosted braking simply reduces the foot pressure needed-it does not improve the braking per se.


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Re: MGB BRAKE UPGRADES

#8

ingoldsb MGB BRAKE UPGRADES : MGB & GT Forum : The MG Experience (33) Terry Ingoldsby

Calgary, AB, Canada MGB BRAKE UPGRADES : MGB & GT Forum : The MG Experience (34)

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1971 MG MGB

Jul 3, 2018 10:18 AM

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The best upgrade you can make to the MGB's brakes is better tires. The original 155 width tires were barely wider than bicycle tires - not much of a contact patch on the road. With modern 185 width tires you will find that the MGB stops very well. If yours doesn't, then the braking system may be tired and need some work.

You might get a *slight* improvement in "feel" with an upgraded system, but I find the stock system quite good and easy to modulate. Unless you are planning on taking the car on the track (where repeated, high speed braking might eventually fade the stock brakes) I would just make sure your stock system is in perfect condition.

Terry Ingoldsby
terry.ingoldsby@DCExperts.com


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