Big brakes

[aduhaime2003]

Does anyone make a kit yet. I just bought a set of Cobra Rotors for the front and i am gonna make a new set of lug holes and machine a caliper offset. I was just wondering if there are beacuse i would like to get a pair of 2 or 4 piston cals. I was thinking about getting a pair of pbr's like older vettes and cobras but was thinking they are kinda played out. I like the ability to use stock replacement pads though.If anyone is interrested i will post pics when they are done later this week.

[engine1]

AEM has some kits!

[MadBill]

The PBR style has a lot going for them: They are very slim for wheel clearance, light, fairly easy to adapt, relatively cheap (compard to Brembo, AP, Alcon, etc.) and plentiful. I expect it is in your calculations, but JIC, two things you need to check out if you're building your own conversion: 1. new piston area (per side of a caliper) vs. stock, which can affect pedal travel and 2. brake force distribution, i.e. piston area times the radius at which the pistons act. E.g., if you increase rotor diameter by 10% and use the same caliper, the front brake torque will be 10% higher, so unless the same change is made at the rear, they will be underworked when the fronts are at the verge of lockup. Within reason, ABS and/or an adjustable proportioning valve can compensate, but it's better just to match the piston area and rotor radius to maintain the same torque at a given pressure.I'm sure we'd all like to see the pix when you're through! (PS: Hope you aren't planning to use 15" diameter wheels for winter tires!)

[AKLGT]

trd also has a big brake kit for the celica that is available to the trix and vibe. but it may only be for the gts and gt.

[aduhaime2003]

I know what you are saying about the diameter changing the braking abilites. I am just hoping that 13 inch rotors themselves in the front help the definite change since i installed 18 inch wheels. I will also be upgrading the back shortly so that should compensate. I was also going to install a wilwood valve to help out. P.S. it is a gt.

[satur9]

stainless steel brake company makes a kit nd sells calipers its listed for the matrix but its the same ssbc.com.

[NSimkins]

Quote, originally posted by satur9 » stainless steel brake company makes a kit nd sells calipers its listed for the matrix but its the same ssbc.com.That rang a bell - I remembered the Autocross Vibe at SEMA 2003 had a brake kit by SSBC - pic 1 and pic 2

[Faultline]

Stillen makes big brakes for our car.. http://www.stillen.com/brakepr...age=1

[aduhaime2003]

so far i am not impressed with any i have seen out there. They are all basically a gay offset bracket with bigger rotors. I am going to use at least pbrs or something better. I will also be crossdrilling and chamfering them then stress relieving and balancing the rotors. I just am not impressed.

[aduhaime2003]

these are the calipers i am going with. F33i by U.S. Brake. I hope this worked(the picture i mean.)

[Psychobroker]

Where did you find these and for how much?

[aduhaime2003]

here at jegs 129.99 ->http://www.jegs.com/cgi-bin/nc...r=361Here are the pads 42.99 ->http://www.jegs.com/cgi-bin/nc...r=361

[AKLGT]

ok, so i see those "big brake" kits for sale like $1995. are they just the better rotors, bigger brakes and then pads??? and if you got those big brakes you are talking about, is that $130 per brake and $42 per pad??? i'm confused!

[Psychobroker]

From the looks of it, they're $129.99 for FOUR (!):Quote »F33i Caliper, 1.75'' Dia. Pistons (4), 1.25'' Disc WidthMy question is this...how do we know which ones will fit a GT?

[aduhaime2003]

No they are just like any caliper or pad. ! caliper is 130. You need 2 so that is 260. Pads are a full set of 4 so you need one 42.99. So it cost me 315 with shipping for calipers and pads and 78 dollares for stock 13 inch cobra rotors. When you see 4 on the calipers that refers to the piston count in one caliper. A stock vibe caliper has 1 piston and a sliding mount system. These have 4 pistons. 2 on each pad. With no sliders. (easier installation) This gives the ability to put a larger pad with more surface area and provide more even pressure.The original capipers i wanted were for a corvette (pbr). These are 2 piston calipers with a sliding mounting point. When they cost 84.99 plus 50 dollare core a peice it isnt much more to go with a better caliper. THe other advantage to the u.s. brakes is that they are light. Very light.(all aluminum)I could buy 6 pistom calipers or 8 piston calipers but then they become very cost prohibative and they are too complex for a street car. More moving parts equals more things tpo go wrong. These calipers are similar to wilwood or braembo 4 piston calipers. But have internal passages for fluid unlike some others that have a crossover line which can be damaged or can leak.And they dont "fit" per say. These are racing parts whcih means custom braketry. Not hard at all.