4 Piston Big Brake Upgrade from 2019-20

[Dantheman1540]

I don’t see how it would be an advantage as they’re still one piston calipers. They have an electronic parking brake that no longer uses the drum-in-hat design so even if they would work you’d be giving up your parking brake.

I didn't know they were one piston, I was more asking if anything came with 4 piston rears or something better. I forgot about the elec parking brake too, those are crap IMO. Maybe we need to start looking at non GM or non truck applications.

 

[lucas287]

What about 2021 and 2022?



We can share it, I'll take weekdays you can have custody on weekends.



View attachment 279995

Thanks! Ended up finding that information a few pages back. With my High Country spoke design it looks like I have a TON of room. One member posted the measurement from the caliper mounting flange to the caliper face hump is about 4 7/8". I have about 5.5" of clearance.

Offset is only part of the equation I guess.

 

[Rocket Man]

I totally agree it's not worth buying different wheels for. Any chance we can bother you into doing some super science brake stomping with the brakes you have? Obviously wouldn't be apples to apples but if it stopped as quick as mine I'd be pretty impressed. Since you have 24s, denali interior and awd which I'm sure added 500-1,000 lbs plus you are running more of a general purpose highway tire if I remember correctly.

Just curious.

I really can’t think of where I could even do that unless I drive out to the country to some random road and do what you did. The Beast is loud af too. You have to remember not all of us live on a 2000 acre estate!
But I guess it’s possible one day, who knows. And regardless, that’s not why I bought them- not for the one-time stops. I bought them because one day while doing some serious downhill rallying in the Cascade Mountains on some logging roads that they paved and are a blast, my brakes got so hot I almost lost them completely. Which not only kinda freaked me out but made me think if I was hauling a trailer downhill or just any time I was really on the brakes again. These roads wind down the side of the Cascades in switchbacks and long sweeping corners with drop offs on one side that can reach 1000 feet at times. I wanted something that would work in extreme conditions because it seems I’m always finding myself in extreme conditions. I feel safe heading up to the mountains and driving the way I like to drive. I can drive the shit out of any road for any amount of time and never have brake fade. At least I haven’t experienced any at all after I installed the Wilwoods. I doubt there’s many SUV’s that can keep up with me. When I installed the blower cam and headers I realized the thing needed to stop as good as it went otherwise in my hands it wasn’t good lol.

 

[Rocket Man]

Thanks! Ended up finding that information a few pages back. With my High Country spoke design it looks like I have a TON of room. One member posted the measurement from the caliper mounting flange to the caliper face hump is about 4 7/8". I have about 5.5" of clearance.

Offset is only part of the equation I guess.

Very true. It’s also the shape of the backside of the spokes. It depends on if they curve outward and how much.

 

[randeez]

I didn't know they were one piston, I was more asking if anything came with 4 piston rears or something better. I forgot about the elec parking brake too, those are crap IMO. Maybe we need to start looking at non GM or non truck applications.

wilwood rear kit...

business in the front, party in the back

 

[Dantheman1540]

I really can’t think of where I could even do that unless I drive out to the country to some random road and do what you did. The Beast is loud af too. You have to remember not all of us live on a 2000 acre estate!
But I guess it’s possible one day, who knows. And regardless, that’s not why I bought them- not for the one-time stops. I bought them because one day while doing some serious downhill rallying in the Cascade Mountains on some logging roads that they paved and are a blast, my brakes got so hot I almost lost them completely. Which not only kinda freaked me out but made me think if I was hauling a trailer downhill or just any time I was really on the brakes again. These roads wind down the side of the Cascades in switchbacks and long sweeping corners with drop offs on one side that can reach 1000 feet at times. I wanted something that would work in extreme conditions because it seems I’m always finding myself in extreme conditions. I feel safe heading up to the mountains and driving the way I like to drive. I can drive the shit out of any road for any amount of time and never have brake fade. At least I haven’t experienced any at all after I installed the Wilwoods. I doubt there’s many SUV’s that can keep up with me. When I installed the blower cam and headers I realized the thing needed to stop as good as it went otherwise in my hands it wasn’t good lol.

That's a butt pucker story! Sounds fun as heck too I really miss the mountians, well actually the Black Hills. I totally get the desire for less fade which is one of my main reasons for doing the swap as well but since it's very difficult to measure fade, stomping the brakes at 55mph seemed like a legit test that more people could relate to. I have no doubt that the Wilwood setup is significantly better than this swap in resisting fade but it would be interesting to know how much better they are in the basic brake stomp test. Most upgrades like these are so full of placebo it's hard to decipher whose info is accurate.

I think when I do the second phase of testing I will have some Yahoo take video to see how dramatic the weight transfer looks, then do a little shock tuning to try and keep it flatter to see if it makes any difference in stopping distance. It currently feels like a boat suddenly coming off plane.

 

[Dantheman1540]

wilwood rear kit...

business in the front, party in the back

Can't justify $2k on something purely cosmetic, I did find a dual caliper setup for the rear. I have a Wilwood hydro e brake in my parts bin that would look cool next to the Hurst shifter.

 

[lucas287]

Anyone have any thoughts on the Baer Eradispeed+1 kit vs the T1 4 piston upgrade?

Baer:

• 15" rotor diameter
• Uses stock caliper (NNBS)

T1 4 Piston:

• 13.5" rotor diameter

What matters most? Rotor diameter or caliper design?

There's probably way too many variables at play here. Quality of fluid/bleed, pad composition (initial bite), rotor design (plain vs slotted, etc.) will all come in to the equation. Making matters worse, fixed calipers will always "feel" different than floating. I believe they engage smoother and release easier and have a very nice firm pedal. These factors give you that "my brakes rock" feeling and satisfaction every time you come to a stop. It's like the difference between a dyno tune and a street tune. They might make the same all out horsepower and be equal at the track, but I'd prefer to daily the street tuned vehicle that took countless hours to dial in the MAF/VVE.

As I typed this out, I think I answered my own question

 

[91RS]

Can't justify $2k on something purely cosmetic, I did find a dual caliper setup for the rear. I have a Wilwood hydro e brake in my parts bin that would look cool next to the Hurst shifter.

Bigger brakes are far from purely cosmetic.

 

[Dantheman1540]

Bigger brakes are far from purely cosmetic.

I agree with that completely however, since rear brakes do less work due to weight transfer and some other variables I wouldn't expect a common Tahoe owner or myself to notice a difference with the $2k rear brake kit vs the factory 2 pistons. So for me, it would be more of a cosmetic mod than a performance one, especially since I have yet to experience fade or failure of the factory 2 piston rear brakes.