Dual rear caipers
 

i was lurking in ziptied.com and came across this lol i dont kno why you would need 2 in the rear but i guess if you cant afford hi performance ones you can do this http://www.ziptied.com/forums/index.php?topic=30924.0

https://www.rx7club.com/attachment.p...1&d=1271109017

that really intresting .. I have never seen that before

Edit: After reading up i found its its for Formula D: For a Hydralic hand break!

looks fucking stupid

f formula d! where factory sponsored totally - re-engineered rwd converted scions with nascar spec toyota v8 engines are legal..

lol... the second caliper is for hydraulic ebrakes or manual ebrake... its not connected to the braking system at all..its its own full independent system.... its not for bling bling..its actually a VERY VERY FUNCTIONAL SYSTEM

i think 2 pairs of the original rear calipers would have been enough, he just added more weight to the rear and messed up the bias. With the original rears, he could have left the brakes alone and just added the 2nd caliper and plumbing for the hydro system.

it looks like he upgraded the front calipers to larger units, so used the fronts for the rear, which is a pretty common swap .. and by upgrading the front and rear [to my knowledge] will keep the braking bias closer to stock than just upgrading the front... as to why he didnt just use a single piston for the hydro system, that up to him..but the stock front calipers weigh next to nothing anyways, since they are aluminum... so there isnt too much extra unsprung weight.. so i see nothing wrong with using another set of 4-piston calipers

seems like a pretty fucking good idea to me.
look at the rear brakes on a ferrari 360 modena, they have a 4 piston caliper in back and a single piston e-brake caliper on the rear rotor.......
so i see nothing wrong with running that setup in a full on drift car, seems like a better idea to use a hydro instead of a cable...

Lloyd

just read through higgis thread... he did upgrade the front calipers to 6-piston units, and upgraded the rears to the stock 4 pistons from the front.... as to why he used 4-pistons for the hydro brake....dun dunna nuuunnnnnn...... because he had them, it was easy to make them work, and he liked the way it looked!! absolutely nothing wrong with that in my book!!! sure, there may have been better ways to do it...but who cares! everyone always bitches about what people should have done.. but in the end, they did something creative and it works! no crime in that!

Higgi posted this earlier, like said above it's for drifting. With the bracket you can just use one set of 4 pistons, which is an upgrade good for the street.

Ferrari... Maserati... Aston Martin... etc... you get the idea... they all have a brake caliper and an emergency brake caliper separate on the rear of the vehicle as stated earlier... It may look funny to some but as others have said, pretty intelligent use of parts that were being replaced anyway...

- Chris

I still don't get why no one modifies the stock calipers to add a extra line for the hydro setup. Bam. Keep stock brakes and have a hydro setup. Is drill and tap really that hard?


I agree, a 2nd caliper is completely useless. Although it doesn't actually throw off the weight bias that much, that looks completely retarded.

^^youre hella fail.
and no, drilling and tapping is not that hard, maybe in magnesium or something, but after owning my bug, you learn quickly and its really easy.

Lloyd

I was being sarcastic.

Setting the caliper up for a double line would be easy. A bench clamp and drill press are all you need. A tap kit is what... 15$ at harbor freight?

So was I lol. Idk how much, i paid ~500$ for mine, but I only buy mac tools and snap-on and it's a master tap, die, rethread kit. Meh, I work on cars for a living, so I write it off at the end of the year anyways.
Anywho, doesn't seem compicated, most expensive part would be the 2 sets of calipers and that milled adapter plate

lloyd

They don't do that, because it wouldn't work. :lol:

If it works it works. Good stuff.

Oops, forgot to add the hydro solenoid actuator inline on the stock line. Put it on a pressure switch from the hydro e-brake lever. It was late, I wasn't thinking straight last night. Still hella cheaper than a custom bracket and 2nd caliper.

The priority valve might work better now that I think about it though. Could T it under the car or in the engine bay instead of back by the brakes.

But to each their own. If you have the tools or hook up from friends, thats what you can get. I don't have access to a mill. Hydro products are easily available though.