The GT-Four Brake Upgrade, ST205 Brake Upgrade for 5x100 & 5x114 PCB Options

[BonzaiCelica]

bolt on 2 piece rotor. only if you've converted to superstrut... this looks like a semi floating hat design, which is fine for most track enthusiast. unless your doing wheel to wheel racing

https://shoptarox.com/products/toyota-celic...d-bespoke-front

also these from GT4 Play UK

https://gt4-play.co.uk/shop/2-piece-front-brake-discs-bells

This post has been edited by BonzaiCelica: Sep 6, 2023 - 5:14 PM

[BonzaiCelica]

so here are some options for larger rotors that will fit GT4 calipers for mcpherson vehicles. Im going to message this company to see if these parts can be sourced here in USA

https://freakyparts.co.uk/collections/toyota-celica-brakes

[MGCustoms325]

so here are some options for larger rotors that will fit GT4 calipers for mcpherson vehicles. Im going to message this company to see if these parts can be sourced here in USA

https://freakyparts.co.uk/collections/toyota-celica-brakes

Just wondering if you heard back from them and which ones to use. Thanks!

[BonzaiCelica]

these guys never replied to me. someone on fb said they didnt have good business transaction with them. So not sure how reliable they are. I asked them if they could give me the rotor specs so i can buy in USA. but they never got back. If you want to call their direct line from your cell, im sure it'll be like $6-7 for 5 min call.

[BonzaiCelica]

-Custom Brembo Brake Kit
$400 Porsche Boxster 2.5/2.7L Calipers (PN: 986.351.421 & 986.351.422)
piston surface area of 2275mm² (staggered pistons)
$175 Avensis Rotors 295x26mm 5x100 Febi Bilstein 27237 or Avensis T27 5x114 rotors (brembo part # 09.B043.11)
$185 powder coat calipers
$275 brackets and hardware
$60 POWER STOP Z23737 Carbon fiber ceramics (similar characteristics to the Stoptech Sport Pads)
$15 Brembo vinyl stickers
Weighs 53lbs (same weight as stock Celica SS-III)
Total $1100

-GT-Four OEM Kit (tap threads on ST202 superstrut knuckle)
$820 Alloy 2 piece Calipers
Piston surface area 2903mm²
Caliper Bridge Bolt design is missing
$30 Caliper Rebuild kit (if pistons are not seized)
$70 Semi-Metallic Brake Pads
$620 BluePrint (Part # ADT343118C) Blank Rotors
Weighs 67.5 lbs
Total $1540

-Wilwood Kit 220-9365
2 piece forged 4 pot alloy calipers axial mounted
Piston surface area of 2658mm2
Lacks brake pad retaining anti-rattle clips
Single caliper bridge bolt design
327mmx28mm Slotted Semi-Floating Rotors (not assembled)
Brake pad surface area of 7,428mm2 rated to 482C max temp rating
Opt out for the AN Fitting front hoses and get Stoptech Front Hoses
Brake pads held in place with one bolt (not assembled into caliper)
E coated rotors
Weighs 39.5 lbs
Total $1585 (made in USA)

-Ceika Kit specs :
2 piece forged 4 Pot alloy caliper with 38mm aluminum pistons
Piston surface area of 2267mm2
Single bridge caliper bolt design
Sport Brake pads (600C) 7,524mm2 pad surface area (assembled)
304mmx26mm Slotted Semi-Floating Rotor (assembled)
Front Banjo fitting brake lines (2 nut fitting to attach to hard brake line)
E coated rotors and Touch up Caliper paint
Weighs 37 lbs
Total $1600 (made in Taiwan)

-Paragon kit specs:
295x28mm Directional 2 piece rotors
2 piece Alloy Calipers with titanium coated (staggered) stainless steel pistons
Single bridge caliper bolt design
Stainless steel bleed screws and crossover pipes
Total $2250

GR Corolla Brake Kit Upgrade?
Alloy Monoblock 4 pot Front Calipers with 38mm aluminum pistons $500
Piston surface area of 2267mm2
Caliper Bridge Bolt design is missing
296x28mm 5x114 Rotors (99-2003 RX300) $120
$275 brackets and hardware
POWER STOP Z232450 Z23 Carbon-Fiber Ceramic Pads $60

Alloy Monoblock 2 pot Rear Calipers with 32mm aluminum pistons $400
Piston surface area of 1608mm2 (OEM single piston caliper surface area of 1923mm2)
288x12mm 3rd gen Avalon Rotors $80
$200 brackets and hardware
POWER STOP Z232451 Z23 Carbon-Fiber Ceramic pads $50

Need to shave down portion of GR Caliper in order that it doesn't contact the rotor hat?
Outer Overall Diameter for Rear disc hat

-Avalon is 179.3mm (288x12mm)

-Avensis is 182.3mm (288x10mm)

-2006 Rav4 is 183.2mm, should be same for GR Corolla

This post has been edited by BonzaiCelica: Today, 12:26 AM

[BonzaiCelica]

Front Calipers:
-Avalon twin piston + Lexus LS430 calipers surface area of 2903mm²
-Spoon 2-piece DC2 caliper piston surface area 2585mm² (staggered pistons)
-Celica SS-III twin piston caliper surface area of 2562mm²
-Celica SS-II single piston caliper surface area of 2550mm²
-Paragon PA055 4 piston caliper surface area of 2453mm² (staggered pistons)
-Porsche Boxter 986 caliper piston surface area of 2275mm² (staggered pistons)
-Integra Type R DC5 caliper piston surface area of 2273mm² (staggered pistons)
-GR Corolla 4 piston caliper surface area of 2267mm²

Rear calipers:
-GR Corolla has a caliper piston surface area of 1608mm2
-6th gen Celica has a caliper piston surface area 1923 mm²
-3rd gen Avalon/ST205 GT4 has a caliper piston surface area with 2267 mm²

This post has been edited by BonzaiCelica: Today, 10:59 AM