NCP90 Rear Drum to Disc swap

[Flubby]

This car looks pretty awesome! I wonder how much stopping distance will be improved with discs on the back, Im assuming it will be reduced a bit.

[Compeer]

Just did a little research and discs have between 17-33% less braking distance and have the same even after alot of braking where as the drums become weaker brakes the hotter they get.

This video shows this well https://www.youtube.com/watch?v=hgtZZUJ6PzA.

You can see the drum brake truck never even gets close to stopping where the disc brake truck does.

And cheers man the Yari's name is Ruby! I named her since I had named the last two corollas I had, First was Sally and the next was Betsy.

Also good old might car mods lol...my guide https://www.youtube.com/watch?v=3YhUv4cBoiA

[remcafee]

Originally Posted by Flubby

This car looks pretty awesome! I wonder how much stopping distance will be improved with discs on the back, Im assuming it will be reduced a bit.

to be honest, the brakes dont necessarily change the stopping distance in my opinion, the thing i noticed most is more instant bite when you hit the pedal and less brake fade when you are 5+ laps in on a track the pedal does not get spongy.
tires are what affects your stopping distance in all reality

[Neinris]

Originally Posted by remcafee

47323-0d201 and 47324-0d201 are the part numbers for the left and right hard lines.

Thank you Remcafee... well fudge, I thought I found the correct part numbers. Would you be able to tell me what 47323-52110 and 47324-52100 are? Because those are what I ordered.

Originally Posted by remcafee

to be honest, the brakes dont necessarily change the stopping distance in my opinion, the thing i noticed most is more instant bite when you hit the pedal and less brake fade when you are 5+ laps in on a track the pedal does not get spongy.
tires are what affects your stopping distance in all reality

Tires will definitely help your stopping power, no argument there.

In my experience, since my DeeDee (Yaris) don't have ABS, I've locked my front wheels more than a few times, due to my rear drum brakes fading, going down a hill and suddenly stopping at a traffic light. I believe its the rear brakes, because they were great for the first 6 months when I first replaced them, never locked my wheels and they supposedly should last longer than the front disc because the front brakes takes most of the weight and beating. It's starting to get colder here in MD and it seems to be helping cool the drums which have prevented me from locking up, or maybe it's just my imagination.
DeeDee is the third car I've owned without ABS. First was a 1973 VW Beetle, which I bought to learn how to drive a manual, it had 4 drum brakes!!! I locked the front wheels often because she just wouldn't stop sometimes, I later found that the previous owner had plugged the hole in the brake fluid reservoir leading to the rear because there's a leak somewhere in the hardline going to the rear. The second car I owed that didn't have ABS was a 92 Prelude, which had all disc brakes. I only locked up the wheels a couple of times when I first got her, before I've learned how to control my braking with that car. I was a lot younger then and more aggressive driver then than now.
So I'm definitely onboard with getting all 4 disc brakes.
I hope someone found my experiences useful.

[remcafee]

Originally Posted by Neinris

Thank you Remcafee... well fudge, I thought I found the correct part numbers. Would you be able to tell me what 47323-52110 and 47324-52100 are? Because those are what I ordered.



Tires will definitely help your stopping power, no argument there.

In my experience, since my DeeDee (Yaris) don't have ABS, I've locked my front wheels more than a few times, due to my rear drum brakes fading, going down a hill and suddenly stopping at a traffic light. I believe its the rear brakes, because they were great for the first 6 months when I first replaced them, never locked my wheels and they supposedly should last longer than the front disc because the front brakes takes most of the weight and beating. It's starting to get colder here in MD and it seems to be helping cool the drums which have prevented me from locking up, or maybe it's just my imagination.
DeeDee is the third car I've owned without ABS. First was a 1973 VW Beetle, which I bought to learn how to drive a manual, it had 4 drum brakes!!! I locked the front wheels often because she just wouldn't stop sometimes, I later found that the previous owner had plugged the hole in the brake fluid reservoir leading to the rear because there's a leak somewhere in the hardline going to the rear. The second car I owed that didn't have ABS was a 92 Prelude, which had all disc brakes. I only locked up the wheels a couple of times when I first got her, before I've learned how to control my braking with that car. I was a lot younger then and more aggressive driver then than now.
So I'm definitely onboard with getting all 4 disc brakes.
I hope someone found my experiences useful.

hmmm it appears those part numbers are a production change effect i am 90% sure they are the same just when toyota changes faciltys or part manufacturers they change the part number, im sure they are the same if not very similar, might have some different inspection paint marks and could be a different color, toyota always changes up the fine details like that, its rather annoying if you ask me but it is what it is.

[Compeer]

Yeah sounds about right.

Did you change your wheel studs to longer ones? I would like to get some 3-5mm spaces to fix offset on my roh zs.

Im going to to change the gear box oil too its a bit crunchy some times going into gears hence Ive been looking for a good lsd unit. Would also pick your brain on gear box oil you prefer?

[remcafee]

Originally Posted by Compeer

Yeah sounds about right.

Did you change your wheel studs to longer ones? I would like to get some 3-5mm spaces to fix offset on my roh zs.

Im going to to change the gear box oil too its a bit crunchy some times going into gears hence Ive been looking for a good lsd unit. Would also pick your brain on gear box oil you prefer?

you can use 5mm spacers with stock studs, you still have lots of thread bite left to safely fasten a lug nut all through the stud, if you only get lless than 2 full turns of thread then thats unsafe as hell.
use redline mt90, it really is magic how well it works on improving high mileage transmissions with worn synchros.

[Compeer]

Sweet cheers for the advice bro!

Todays the day, will be going out to pick it all up shortly, will post pics tonight of the parts!

EDIT: damn the wreckers hadnt even pulled the parts off the old car...Told me another week lol ffs..good things take time I guess