F1technical.net

Hey all, I would like to know if the following is a plausable thing to do on a commercial vehicle.

I would like to put two sets of calipers on both my front and rear wheels (as in two calipers on each wheel). I do know and understand that a modification to certain parts would be in order. Here are a few questions:

Would that be too much braking power?
Would this over stress the disks or rotors?
Would the wheels lock up with an ABS?
Would there be an increase in part failure?
Could this affect the stutts, and for those with leaf springs, how about that?
What kind of stress would the frame or chassis undergo?
Any other hazzards that I have not thought of ahead of time?
Questions or comments, let me know!

Thanks,
Gear

There's no need for dual brake calipers because most high end brake systems are probably strong enough to lock up the wheels at very high speed with just ONE caliper.

Also, having two calipers would probably cause the rotor to heat up too much under braking, which wouldn't be good.

There's just no need for something like this, two would just be overkill.

- KJ

At first i thought that dual calipers would give you the desired braking quciker, possibly heating the disc more than one caliper would. Then i thought that due to the extra stopping power the car would be braking for a shorter period of time...but this all depends of course on whether the tyres could maintain enough grip to stop before locking,which if you have good brakes, should be doable with one caliper per disc. In conclusio I agree with KJM3,overkill mate.

yep, no need for 2 set of calipers..

it will heat up the rotors too much,
wont work with abs (since the second set of calipers wont be hooked up to it
and you will need extra components for it to work properly.


just get you a nice set of cross drilled and slotted rotor, nice Baer big brake kit and you should be good to go.

http://www.spmotorsports.com has lots of aftermarket parts for you to buy.

Check out this link

http://www.delphi.com/pdf/e/br_max_torque.pdf

Thanks for the info guys!
Now I just need to get those rotors;

by the way, Would the rotors still heat up if both calipers were on the ABS?
In other words, if I connected both sets of calipers to one hydraulic brake line.

Thanks for the info guys, much appreciated!

Gear

your heating up the rotor with more area of the brake pad, so yes, it would heat up significantly more...

short rotor life.

gear_dawg,

there's and old saying in racing (and it's mostly true):

The brakes only stop the wheels; it's the tires that stop the car.

The only thing more brake rotors would give you is more thermal mass to absorb and dissipate that braking energy. Optimizing your current (single) brake rotor size and heat dissipation is probably a better way to go. Also, the downside of adding more brake rotors is that it increases unsprung mass.

If cost is no object, go to CRC rotors and pads. They are very light and CRC has the unique (and very desirable) physical property of increasing Mu with temperature. That is, the hotter they get, the better they grip!

Regards,
Terry

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