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 Post subject: Re: Inboard Brakes
PostPosted: March 4, 2019, 2:26 pm 
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Try the Sports Racer Technology website. A number of those cars use inboard brakes due to unsprung weight considerations. They also direct a whole lot of cooling to the inboard brakes. You might also want to add a heat shield in order to keep your CV boots from melting.


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 Post subject: Re: Inboard Brakes
PostPosted: March 4, 2019, 7:13 pm 
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The effectiveness and dynamics of a single brake rotor on the differential also depends on the type of LSD. Type 1 Torsens are about useless if one wheel approaches zero traction. You'll have very limited rear braking and some very odd handling characteristics when it occurs. After having driven both, I'd take the extra unsprung weight over the weird dynamics any day of the week. You also have limited cooling and the rotor will heat the differential to the point that you need some sort of expansion volume or else oil/grease will end up everywhere.

Having the brakes inboard after the differential is going to cause reverse loading in the axles. It probably won't matter on a light car but may require larger axles (and more weight) depending on the vehicle. For a vehicle that is light enough for it to not matter, you probably won't need heavy rotors or calipers in the back anyways. The effort of going with inboard brakes becomes a lot of work for minimal gain.

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 Post subject: Re: Inboard Brakes
PostPosted: March 4, 2019, 8:23 pm 
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Just because the Brits did something for 32 years is in any way a good argument for it working well. Tradition ya know, stiff upper lip and all that kind of stuff.

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 Post subject: Re: Inboard Brakes
PostPosted: March 4, 2019, 9:46 pm 
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Always Moore!
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But British inboard brakes are a lot more exciting when they catch on fire. ;)

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 Post subject: Re: Inboard Brakes
PostPosted: March 5, 2019, 12:21 am 
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a.moore wrote:
But British inboard brakes are a lot more exciting when they catch on fire. ;)


And easier to put out when they are so close together and you don't have to run from side to side to use the fire extinguisher.

Pip! Pip! Tradition. Humph

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 Post subject: Re: Inboard Brakes
PostPosted: March 6, 2019, 9:23 am 
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John, I assume you read Tony Pashley's book that you purchased early on. He uses two calipers on a single disc mounted to the diff on his builds. I'd take the unsprung hit to mount them traditionally but it can be done successfully.

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 Post subject: Re: Inboard Brakes
PostPosted: March 7, 2019, 4:13 pm 
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Yea, I'm just feeling it out. My uprights are universal and will take the conventional outboard brakes. I'm thinking about how I should build the chain adjuster, concentric adjuster don't really lend themselves to inboard brakes. If I plan ahead, it would be something I could try.

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