Coming in fairly late on the topic but a few things in here took my interest.

 

The first was the link to the pics of the calipars , the top being the girlock and the bottom being (sumitomo?).

 

Of the two calipars shown if both are readily availible ditch the girlock in favour of the sumitomo, the calipar shown in this pic Dubbed "sumitomo" is a twin piston design and will improve breaking consistancy no end over the "Clamp Style" girlock.

 

don't opt for the girlock calipar because of the increased pad surface area , an increased pad surface area might sound good in theory but a more even clamping pressure over a smaller pad will prove way more effective.

 

Take for example the well known Volvo 4 pot calipars , pad surface in these particular calipars is relativly tiny compared with a range of other calipars however with the even clampng pressure acheived through the four pistons they have become well known as a good upgrade option for a wide range of vheicles road and race alike.

 

Second , when taking to a calipar with an angle grinder keep in mind that an average pressure at any given calipar under hard breaking will be around 1500psi , taking this into account , do you really want to thin the cylinder walls of your calipar out ? Grind With Care and Attention.

 

DyNo.

Aight cheers Dyno, i only need to take off 8mm or so

Heya guys do the brake pads out of the sumitomo calipers fit the girlock calipers,

 

Cheers

what an absolute heap of garbage. le30 sumitomo calipers are NOT twin piston

Dyno: I think you're thinking of Corona calipers. Corolla Sumitumo's as far as I know are single piston.

 

Trent: I don't think the pads are interchangeable.

 

Calipers are designed a certain way for a reason. Modifying them and grinding them should always be done with care and thought.

what an absolute heap of garbage. le30 sumitomo calipers are NOT twin piston

Ok , the sumitomos from a corolla must not be twin piston calipars , i can tell this from your confident post , but like i said in my post "the pic dubbed sumitomo?" if you look at the pictures supplied that picture clearly shows a 2 piece twin piston calipar , so maybe that picture isnt of what it was supposed to be.

Dyno: Those calipers in the pic aren't twin piston. It just has a big "fin" on the wheel side of the caliper, you can see it in the front-on picture.

you need to swap the discs and calipers as a pair. jap calipers go with jap discs, girlock calipers go with girlock discs

No you don't...My KE35 has the jap discs with Girlock calipers...has had for about 5 years.

do mods with angle grinder

Do mods with a hand file...as your caliper can crack if you use an angle grinder

Lol already grinded them didnt crack or anything, i had to take off 8mm i wasnt going to file off that much lol,

 

There sprayed and everything.

And watch them crack since u have put way too much heat into them =) Then suddenly you have no brakes. Putting the bigger KE55 calipers on is always a better way to go.

yeah, you wouldn't want to put heat into brakes now would you

 

have you ever touched brakes after hard driving? they leave scarring blisters and change the color of the disc metal, i highly doubt half a minute with the angle grinder would generate anywhere near that much heat

 

they'll be fine

Lol yeah what superjamie said =)

 

They didn't get that hot and the main reason i never transferred the ke55 ones is that i just got my discs reconditioned and new pads.

Just telling you what the brake guy told me....

 

And you could have kept your discs...and new brake pads are cheap. The extra braking you get out of the KE55 ones would be well worth the price of some brake pads.

yeah, don't listen to what every "mechanic" has to say =)

 

i wouldn't use the thin discs with the girlock calipers, the brake fade resistance isn't much of an improvement, but it is noticeable when you're thrashing the ass out of the car. i managed to turn my ke70 rotors purple/black on many occasions, the last thing you want is thinner discs. if you're going to do an upgrade, i would rather do it properly