231's FINALLY!!!!

[CanukRunner]

WOW...


Just wow... That was not a small upgrade, this upgrade is totally understated.

It was incredibly simple to add on... one break line to undo and two bolts... and that's it per side.

Bleeding the brakes was harder than the caliper upgrade.

I really wasn't expecting much from the descriptions i was reading, perhaps some improvement..

But noo... This is a very big improvement.... the pedal feel is much softer so it may appear to be less of an improvement but my 4runner now shrugs off speed effortlessly.

Have not even kicked in the abs yet because there was no need... getting off the highway my needle dropped from 100kph like i turned off the ignition.

Worth every penny.

I did the proper bedding proceedure.. or close to it.. 60-20 a few times 100-40 a few times etc

The 5 spoke rims had lots of room, about a fingers worth.

 

[OHP]

Did you have any steering wheel vibration when braking before the upgrade?

If so did the upgrade totally eliminate that?

 

[kman55]

Congrats! I plan on doing this, just keep putting it off...

 

[Brilliant]

If you aren't engaging abs you have less applied brake torque. Tire compound, weight transfer & vehicle weight are proportional to max friction force available (ie a skidding tire that activates abs). If you can skid your tires with stock brakes you can't stop any quicker with 231s. What you're gaining is repeat braking performance.

I'm about to do mine just to do it and I also need to bleed my brakes.

How much more pedal plunge do you have due to the larger? caliper?

 

[SJC4Runner]

Pedal feel is very slight difference. I did notice some slight brake bias differences with more front end braking power, but there are 3 things I still need to correct on my 4runner that might alter that (rear brakes should be bled, suspension is shot so more front end might be diving more, and I still have wheel balance issues). I am an aggressive driver, so I might notice things like this more than others. Also I used some Rabesto's cheap pads from Rockauto and the cheapest rotors I could find at summitracing (who has really reasonable shipping rates). No issues as of yet over the last 1000 miles.

 

[CanukRunner]

I had vibration so bad when i hit the brakes you could see my dash board hop.

This fixed that problem completely!!

I thought it could be my tie rods, or rear brakes since they have been drenched in diff fluid last time my rear seals blew out...

The pedal plunge is about 1/4 of the pedal were there is almost no braking then it starts slowly and at the 1/2 way point it becomes very obvious the brakes are waaaaaay stronger. I take it its because the pistons are larger we get the plunge so there is not enought fluid getting pumped in?

Also I could not bleed the rears as the bleeders are in very rough shape.. they will break for sure. I could have gotten a little better pedal feel if i could do a proper bleed.

Maybe we could get the tundra brake master cylinder?? Anyone done this??

And really its not just repeated braking performance that is better.. its just better... There is no way my brakes could have ever ditched speed so fast.

About this only increasing repeat braking performance.. your tune will happily change lol... bigger pads, bigger pistons, more braking!

The only thing that SUCKS, is that I had to by ceramic pads as they are oem for tundra and all that was avail here... I tried so hard to get organic.... so now when its cold you get the oh $hit moment of having to press a little harder... but at least there is more power there to handle that. But when they are warm they grab hard.

My buddy put metallic pads on his wifes turbo talon and she pulled out of his driveway and right into a car... it was like her brakes were greased.. thats when we learned all about ceramic and metalic pads.. definatly dont put them on your wifes car.)