Brake upgrade suggestions requested
#1
Brake upgrade suggestions requested
Well with the bigger tires and all the extra wait on the 4rnr I'm not happy with the stock brakes. I just did some work on the system and all seem to be up to spec for stock and flushed out the old fluid. Still not happy and honestly never have been. SASing is in the near future about all the parts are collected. I'm going to pay someone to actually do the swap, I'm waiting for ankle reconstuction and doing brakes was a two day venture using my kids for labor.
I'm planning on going with a 1" MC, Dual diaphram booster, v-6 calipers. Perphads this will be enough, if you got this set up tell me what you think. I've seen the rear disc and really like the set up but can't go without a ebrak, I've ripped a hard line out on a trail and the ebrake was worth its pathetic weight in gold. Line the idea of staying toyota but I'm not ruling anything out. Chime in all input welcome.
I do not like the t-case parking brake, if I need a ebrake I don't want it attached to the d-line my other braking mechanism.
Here's some sites I've researched and bookmarked.
http://home.4x4wire.com/erik/4runner/brakes/
http://www.pirate4x4.com/productreviews/skybrakes/ I've read that the Elderado e-brake has issues running with the toyota ebrake system
http://frontrangeoffroadfab.com/nfos...ae7203d5b6976a FF is awesome but thats alot of scratch. I've read that the supra rears don't hold upto mud.
I know the is a gentlemen on YT selling brackets but no ebrake
Thanks in advance
I'm planning on going with a 1" MC, Dual diaphram booster, v-6 calipers. Perphads this will be enough, if you got this set up tell me what you think. I've seen the rear disc and really like the set up but can't go without a ebrak, I've ripped a hard line out on a trail and the ebrake was worth its pathetic weight in gold. Line the idea of staying toyota but I'm not ruling anything out. Chime in all input welcome.
I do not like the t-case parking brake, if I need a ebrake I don't want it attached to the d-line my other braking mechanism.
Here's some sites I've researched and bookmarked.
http://home.4x4wire.com/erik/4runner/brakes/
http://www.pirate4x4.com/productreviews/skybrakes/ I've read that the Elderado e-brake has issues running with the toyota ebrake system
http://frontrangeoffroadfab.com/nfos...ae7203d5b6976a FF is awesome but thats alot of scratch. I've read that the supra rears don't hold upto mud.
I know the is a gentlemen on YT selling brackets but no ebrake
Thanks in advance
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#8
Contributing Member
iTrader: (3)
Indeed. I'm running the AP trans brake and their rear disk kit with the GM calipers. I also upgraded to V6 calipers up front, FJ80 1" bore master and the V6 dual diaphragm booster. Also, I have a manual proportion valve installed to bias front/rear. Thing works like butta!!!
Oh, and if I would have waited the extra year, I'd have picked up FROR's full floater like Wabbit is running. That is a sweet setup.
Oh, and if I would have waited the extra year, I'd have picked up FROR's full floater like Wabbit is running. That is a sweet setup.
#12
Contributing Member
iTrader: (3)
Oh and here's the links I used:
http://www.4x4wire.com/toyota/reviews/rear_discs/
http://www.4x4wire.com/toyota/reviews/parking_brake/
http://www.4x4wire.com/toyota/reviews/rear_discs/
http://www.4x4wire.com/toyota/reviews/parking_brake/
#13
Registered User
iTrader: (1)
muddpigg,
For a budget solution, the upgraded booster, MC, and larger front calipers are a great choice. If your LSPV is adjusted correctly the rear drums are plenty capable. Might be a different story with 37"+ tires...
The small 4cyl calipers and the S12W V6 caliper share the same rotor. Sometime in the mid-90's 4Runner got a slightly larger caliper (1.78" pistons) that used thicker and slightly wider rotors. I believe the T100 shared this setup too.
When upgrading to larger bore MC's, just keep in mind the hydraulic advantage you're working with. The ratio of the brake piston surface area over the master cylinder surface area. The stock 4cyl setup (1.683" + 1.338" front pistons, 7/8" wheel cyl, 13/16" MC) has a 32.6:1 advantage. Throw a 1" MC on there and your advantage drops to 21.6:1. Hard pedal, but not an upgrade! But if you're putting on a larger booster then having a lower mechanical advantage is fine.
I upgraded my front brakes to the older V6 calipers (1.68" pistons), a turbo booster, and a 15/16" MC and the pedal is just right! Rock solid by the time it's close to the floor but not before that.
Also if you are running a lift, fabricate a little lift bracket for the LSPV and that will help matters alot. I have just a couple of inches of lift and raising the LSPV 2" or so cured my nose-dive when braking.
Hope that helps!
For a budget solution, the upgraded booster, MC, and larger front calipers are a great choice. If your LSPV is adjusted correctly the rear drums are plenty capable. Might be a different story with 37"+ tires...
The small 4cyl calipers and the S12W V6 caliper share the same rotor. Sometime in the mid-90's 4Runner got a slightly larger caliper (1.78" pistons) that used thicker and slightly wider rotors. I believe the T100 shared this setup too.
When upgrading to larger bore MC's, just keep in mind the hydraulic advantage you're working with. The ratio of the brake piston surface area over the master cylinder surface area. The stock 4cyl setup (1.683" + 1.338" front pistons, 7/8" wheel cyl, 13/16" MC) has a 32.6:1 advantage. Throw a 1" MC on there and your advantage drops to 21.6:1. Hard pedal, but not an upgrade! But if you're putting on a larger booster then having a lower mechanical advantage is fine.
I upgraded my front brakes to the older V6 calipers (1.68" pistons), a turbo booster, and a 15/16" MC and the pedal is just right! Rock solid by the time it's close to the floor but not before that.
Also if you are running a lift, fabricate a little lift bracket for the LSPV and that will help matters alot. I have just a couple of inches of lift and raising the LSPV 2" or so cured my nose-dive when braking.
Hope that helps!
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06-01-2021 01:51 PM