Tundra brakes on frs?

[Leonardo]

This thread hits on a sensitive subject. Peoples beloved FT86 Toyota. Built by Subaru!

[EZWood]

Originally Posted by Racecomp Engineering

If you could make them fit, which would take a custom bracket, bigger wheels, and custom rotors, it wouldn't be a performance improvement.

A big front heavy truck like a Tundra is going to have way too much front bias and will lock up the front tires very easily when used on a FT86. The increase in unsprung weight will be substantial and have a noticeable impact on ride, handling, and acceleration.

Short version: don't do it.

- Andrew

Coming from the vw world, upgrading the brakes would require adjustment in the computer with vag com for the braking force applied to the front/rear brakes as to not upset braking balance as much as just installing them and not adjusting anything. It's like installing a different proportioning valve for the brakes after an axle swap on a 4x4.

[Matt Andrews]

I don't see why people are so hung up with the STi bleeders being on the "wrong side" of the caliper. There is a capped bleeder port on the other side of the caliper. Just remove the cap and screw in the bleeder. Now the bleeder is on the top of the caliper when mounted on the FR-S. problem solved.

[Dave-ROR]

Originally Posted by Matt Andrews

I don't see why people are so hung up with the STi bleeders being on the "wrong side" of the caliper. There is a capped bleeder port on the other side of the caliper. Just remove the cap and screw in the bleeder. Now the bleeder is on the top of the caliper when mounted on the FR-S. problem solved.

This wasn't known earlier when those comments were made, RCE and others that were big Subaru guys said they didn't have that option.

It's now known to be wrong

[Racecomp Engineering]

Yeah we didn't have any OEM brembos around when we made those comments. So we take it back.

Still we're concerned that a lot of people will do that swap the wrong way.

- andrew

[Dave-ROR]

Originally Posted by Racecomp Engineering

Yeah we didn't have any OEM brembos around when we made those comments. So we take it back.

Still we're concerned that a lot of people will do that swap the wrong way.

- andrew

and there's still the big questions:
-Do you actually *need* to run the STI calipers? If so, why?
-What are you doing to address bias?
-Why bother when cheaper and likely better solutions will be available?

For me when I need a larger heatsink up front I'll likely go newer LGT front, likely would only need the rotor and caliper brackets, but without the spare parts to test.. who knows. Maybe I'll try to find the brackets, get some cheap blanks, and find out :P

[VSGTS14]

[QUOTE=Captain Snooze;409502]What do you base your comments on? Looks like a lot of speculation to me.
/QUOTE]

it was speculation, but then i saw somewhere it was confirmed they are the same brakes used on the current gen wrx. a lot of parts on this car are taken from previously sold vehicles (lexus driveline, lexus diff, wrx brakes).

i'm not saying they will fit, i'm saying that they are your best bet to try and see if they do fit. sti brakes are huge, you would need to do a hub swap most likely to perform that task.

[VSGTS14]

Originally Posted by Draco-REX

Aren't the Subaru 4/2pot calipers nearly bolt-up? I don't think they're directional like the Brembos...

pretty sure i read. i bet a BBK for a wrx would fit these cars.

[Draco-REX]

Originally Posted by VSGTS14

pretty sure i read. i bet a BBK for a wrx would fit these cars.

As long as it doesn't use directional calipers or if it does, the bleeder can be swapped from one end to the other.

[SLICVIC]

i believe most of the suspension parts on the rear match up with the Subaru GR STi , and have heard the rear brembos bolt up and fronts need little modifications, but i could be wrong. I think i may have come across some part numbers of rear control arms for the STi matching the control arms for the BRZ.

For whatever reason , it might be easier to swap on subaru parts rather than toyota/scion parts

[Dave-ROR]

Originally Posted by SLICVIC

For whatever reason , it might be easier to swap on subaru parts rather than toyota/scion parts

Maybe because they are a Subaru regardless of badge? At least 90% including 100% of the suspension and brakes

[SLICVIC]

Originally Posted by Dave-ROR

Maybe because they are a Subaru regardless of badge? At least 90% including 100% of the suspension and brakes

haha yep exactly. my friend that works at toyota/scion says nearly everything on the car is stamped "subaru" . at first i thought Toyota car with subaru engine, then i realized its Subaru car with subaru engine.

[PhyrraM]

It sounds like the bleeder issue is solved, but here is an old hot rodding trick....

Remove the caliper (not the hose, of course) and hang it with the bleeder "up". Place pieces of plywood (shops that do alot use aluminum) cut to the general shape of the brake pads and slightly thicker then the rotor between the pistons. Bleed the brakes like normal. The plywood keeps the pistons from pushing out. When finished, remove the plywood and install your calipers back over the rotors.

And as far as upsetting the ballance? Hell, we all know that at least half the folks who 'upgrade' brakes do it for the looks and will never approach a point where ballance becomes important.

[lam86]

Has anyone thought of brake master cylinder when converting these to 'larger' calipers?