Project Toyota Tundra Part 8- Upgrading the Brakes with TRD

By Mike Kojima

Its been a long time since we last visited Project Tundra.  Our super truck has been performing admirable duty around MotoIQ headquarters as our company workhorse.  It has been towing cars around, toting go karts and hauling parts for the past year without complaint. Our supercharged Tundra has been flawless in performance and reliability even getting slightly better than stock fuel economy.

To make our super truck a more well rounded beast we have been wanting to upgrade the brakes.  Not that the stock Tundra is that bad.  The stock truck rocks big 14" rotors with large 4 piston front calipers.  The big stock brakes haul the Tundra down pretty well and are one of the reasons why we bought the truck in the first place.  However injecting 504 hp made things a little different.  With our truck now capable of 13 second quarter mile passes and feeling like a rolling house on steroids, we decided that a brake upgrade would be in order.  Towing a big trailer also puts a lot of stress on the brakes' system in which case you can never have too much brakes.

To increase our stopping power, we once again turned to our friends at Toyota's high performance arm TRD to get us the ultimate in brake systems.  TRD parts are wonderful as they do not affect your Toyota's warranty and since we had the big buck 100k mile factory warranty package, we did not want to void this on our workhorse.  TRD's OEM level of quality and detail always makes their parts a real pleasure to work on as well.  Everything fits perfect and flat out works.  Check out some of the details of our kit.

The size of the TRD bake kit dwarfs just about anything we have even seen on any sort of civilian vehicle.  Of course we are not used to seeing stuff that can stop a GVW of 18,000 lbs like a fully loaded Tundra towing a trailer can be.  Car stuff simply looks wimpy compared to this.  Look at the size of Jeff's beer compared to the size of the parts!  The box the kit came in probably weighs over 80 lbs and has a weight warning on it.
The front rotor is a massive 406mm in diameter by 35mm thick.  This dwarfs the huge brakes on a R35 GTR which are a mere 380mm.  These rotors are huge and heavy.  On non friction surfaces, the rotors are e-coated to resist rust.  We are speechless on the overall size of these things, check out the beer can!
The front rotors have an aero vane configuration.  This ensures pumping of cooling air through the rotor and increases the inertial fin surface area of the rotor to provide good cooling.
The caliper is also massive, massive massive!  It is a six piston design with staggered piston diameters to reduce taper wear.  The caliper body is machined from a forging for extra strength.  The caliper has dust seals unlike typical race calipers for a long service life.  The huge caliper holds equally huge brake pads.


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Thursday, July 19, 2012 2:38 AM
Those calipers look a lot like Stoptech calipers. Who builds the caliper for the TRD brake upgrade?
Thursday, July 19, 2012 7:22 AM
I'd be willing to bet a Bud Light that the box weighed more than 80lbs. I wanted to find some 17" wheels for comparison to the rotors but the beer can was so much funnier.
Thursday, July 19, 2012 9:31 AM
What? Jeff has moved up from PBR? Those brakes are awesomely large. What's scray is how small the brakes are on a Suburban. I swear my S2000 Stoptechs are bigger.
Mike Kojima
Mike Kojimalink
Thursday, July 19, 2012 9:56 AM
I am pretty sure that Stoptech makes them for TRD. I think the brakes were developed for the armored truck market.
Thursday, July 19, 2012 9:58 AM
Believe it or not we were drinking Fat Tire on this photo shoot.
Thursday, July 19, 2012 5:01 PM
Yes, Stoptech makes the TRD brake kits. I'm glad to see that Toyota finally got the brakes right on the new Tundra. The brakes on the 04 Tundra doublecab that I had wouldn't stop worth a F_CK....even after upgrading. They were just too small for the weight of the truck, much less towing. Does the new tundra have a load proportioning valve attached to the bottom of the bed that adjusts the brake bias to the rear as you load up the bed/rear suspension?
Mike @FIGS Engineering
Mike @FIGS Engineeringlink
Thursday, July 19, 2012 9:18 PM
These will be going on our tundra as well. One reason to get 20" wheels :)
Der Bruce
Der Brucelink
Thursday, July 19, 2012 9:51 PM
Hmmm, if they're dimpled I'd be stoked for you, but they look cross drilled. If you really do haul lots of 18,000lbs loads they'll start to crack unfortunately. I've seen the aero-vaned, cryo treated cross drilled ones do it before, on several occasion.

I drove an armoured truck for a couple years, even picked up a brand new one out of Canada, and I never saw brakes this good.
Dusty Duster
Dusty Dusterlink
Friday, July 20, 2012 5:40 AM
Holy crap, are you planning on hot-lapping this thing at Infineon or something?!
Dan Barnes
Dan Barneslink
Friday, July 20, 2012 7:48 AM
Hop laps at Infineon have been done already. There are (or were) two pace trucks up there with these brakes loaded with race pads. Pics on your favorite search engine.

These brakes were specially designed for the Tundra and are available only through Toyota dealers.
Monday, July 23, 2012 10:22 AM
@ Der Bruce: Luckily for Mike, these brakes won't be entirey responsible for stopping 18k lbs (assuming his GCWR is even up there, which I don't think it is) since the trailer will have brakes as well. Really, the truck's brakes are only responsible for the truck, whatever is loaded into it, plus about 10-30% of the trailer (depending on tongue weight). The rest really should be up to the trailer's brakes

If his Tundra is loaded by itself to 18k lbs, expect carnage pics to ensue directly afterwards, as I don't think it can carry 6+tons in the bed... :)

Either way, MEGA BEEF. I thought the brakes on my CTD Dodge were massive. The pads should last forever (my much heavier Dodge has 92k miles on it, and barely half the pads are worn).
Der Bruce
Der Brucelink
Wednesday, July 25, 2012 8:53 AM
Steve: I never really expected Mike to be hauling Toyhaulers, Horse Trailers or 2 car haulers BUT if he did, (and despite the trailer brakes) I've seen many of cross drilleds go crackily crack!
And don't forget on your Dodge that you're consciously and sub-consciously engine braking a lot more with the stick, which helps pad life longevity
Wednesday, July 25, 2012 9:51 AM
What stick? My CTD Dodge is automatic holmes!

And diesels offer jack shit for engine braking. Gets a bit dicey going down the pass from San Diego to Imperial Valley (Glamis). 3000+RPM (redline is 3100) in 2nd and you still need brakes! :)
Friday, August 03, 2012 9:40 AM
Wondering how the Big Brake Kit, and more specifically, the TRD Supercharger, would perform in a Sequoia ('08). I read the article about the Supercharger in the Tundra, but wonder if anyone here has ever seen one installed in a Sequoia? I've been thinking about putting one in my rig, but, honestly, I'm concerned about the fuel economy loss (or even possible gains?).
Thursday, August 09, 2012 2:02 PM
"406mm in diameter by 35mm thick. This dwarfs the huge brakes on a R35 GTR which are a mere 380mm. "

2009-2011 GT-R are 380 mm x 34 mm front - 380 x 30 mm rear

2012-2013 GT-R are 390 mm x 32.6 mm front - 380 x 30 mm rear

I am pretty sure these TRD are Stoptech. Some of the other TRD are for sure.

Monday, September 24, 2012 6:29 AM
Anyone knows how to change out the pads on this TRD BBK ??
Mike Kojima
Mike Kojimalink
Monday, September 24, 2012 8:19 AM
Take off the caliper and load them in from the bottom or take out the bridge and load from top. It's easier to take off the caliper, two bolts.
Monday, September 24, 2012 10:05 AM
Thanks Mike. The reason I asked is because I too have the TRD BBK on my Tundra. I think the stock TRD BBK pads is not as good. Are you guys planning to get StopTech/Centric replacement pads? I've done some research and the Centric Fleet Perf pads is a better pads.

Centric Fleet Performance pads #306.07560
Mike Kojima
Mike Kojimalink
Monday, September 24, 2012 11:01 PM
Do experience fade or just faster rotor wear and dusting?
Wednesday, September 26, 2012 9:32 AM
^^^ Not sure what you're asking on the comment above.

My TRD BBK squeaks a little at light braking. Any idea why?
Sunday, October 28, 2012 8:23 PM
very cool stuff - no concerns with these brakes trailering down a mountain for an extended period of time?
Mike Kojima
Mike Kojimalink
Sunday, October 28, 2012 8:59 PM
Well look at the stock brakes and you tell me :)
Tuesday, September 17, 2013 7:26 AM
Any idea how much these rotors weigh?
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