|
|
10-03-2022, 03:27 AM | #1 |
Drives: NCP90 TRD Yaris Manual Join Date: Oct 2022
Location: Auckland, NZ
Posts: 267
|
NCP90 Rear Drum to Disc swap
Hey guys I own a NZ new 2007 trd yaris NCP90, It's a 1.5 vvti 1nzfe 5speed manual with full trd trim and only 133,000km so shes in great shape.. I have previously changed the speedo cluster to the Vitz RS jdm cluster (was not fun) and put 15x7" old school deep dish Roh wheels and some BF goodrich low pro tires to replace the 2000's 17" chrome gross wheels it had on it. I also spent a day scrapping the trd lightening sticker kit off it as it was crazy cracked, but may get it restored as it was a $750 trd option.
Ok so it has all the same or even better trd versions of parts like the vitz RS BAR the rear drums. The vitz rs has the rear disc brakes and thats where this crashed vitz RS comes in as the donor. https://gyazo.com/d32e373b134ee196f11a5f50c4d46f50 So the plan is full rear axle with everything attached so brake lines and ebrake cables. So do I need the brake master cylinder as well guys? I cant find a different part number and people do other kits with out changing but thought Id ask and also document this a bit. Also anything else different for vitz rs? Does ecu have a different tune? Shes low Km pretty rare car so this will only add value to her being the only actual Yaris with rear discs like the Vitz RS and allow me so many more brake upgrade options as far as pads and discs go. Reading more on here i think I need the brake propertioning valve instead of the brake master cylinder? Tomorrow arvo i go to check out the car and tell them what i need them to pull off for my conversion kit which they gave me a flat price on, I just need to have the parts list ready. Edit: Checked out the donor car today and someone had nabbed a brake disc but also taken it apart and no bolts to be seen. So I may have to flag this. got 3 weeks before it gets scrapped so need to decide if i should just buy what they have and find new bolts. Last edited by Compeer; 11-24-2022 at 02:20 AM. |
10-04-2022, 01:39 AM | #2 |
Drives: 2007 Toyota Yaris 3 door Join Date: Sep 2018
Location: Arizona
Posts: 405
|
you would want to get the front brakes too off of it because then your rear brakes would be bigger than the fronts, you do not need a proportioning valve if you do the front and rear brakes off of the vitz rs
|
10-04-2022, 03:45 AM | #3 |
Drives: NCP90 TRD Yaris Manual Join Date: Oct 2022
Location: Auckland, NZ
Posts: 267
|
Whats the size of the vitz RS front brake rotors compared to the 1.5 Yaris? Some of this info is hard to find, but I can measure my front rotors and the vitz rs, but it didnt look bigger and the rear ones are tiny. The front brakes are all their if its just the callipers and the rotors I need thats easy. Axle bushings should be sweet its pretty low k and never been thrashed, will check them to make sure.
Last edited by Compeer; 10-04-2022 at 04:35 AM. |
10-04-2022, 01:42 AM | #4 |
Drives: 2007 Toyota Yaris 3 door Join Date: Sep 2018
Location: Arizona
Posts: 405
|
you will also need the e brake cables, brake lines (flexible and hard lines on rear axle), backing plates, and i would get new rear axle bushings while you are doing that work
|
10-10-2022, 04:57 PM | #5 |
Drives: 08 Yaris 3 Door Hatchback Join Date: Aug 2019
Location: ‘Murica!
Posts: 453
|
|
10-12-2022, 04:05 PM | #6 |
Drives: 2007 Toyota Yaris 3 door Join Date: Sep 2018
Location: Arizona
Posts: 405
|
|
10-04-2022, 02:46 PM | #7 |
Drives: 2007 Toyota Yaris 3 door Join Date: Sep 2018
Location: Arizona
Posts: 405
|
i cant remember exact size, i remember them being 25mm larger overall diameter, and like 5mm more thick, calipers physically look the same dimensions but the caliper piston bore diameter is larger
|
10-04-2022, 08:00 PM | #8 |
Drives: NCP90 TRD Yaris Manual Join Date: Oct 2022
Location: Auckland, NZ
Posts: 267
|
thanx bro! ok front and rear brakes it is!
Edit: went back today and looked and the front brakes were missing most of the parts as they had been taken apart and sold in parts but then he said he though he had another RS but older model in the back and when i looked it was the same model and had the entire full set of untouched everything! it just had 3 cars stacked ontop of it. Anyway Im getting the front hubs and brakes, rear entire subframe with hoses and the hand brake cables. I hope the front brake hoses are the same? Last edited by Compeer; 10-05-2022 at 08:30 AM. |
10-06-2022, 03:41 PM | #9 |
Drives: 2007 Toyota Yaris 3 door Join Date: Sep 2018
Location: Arizona
Posts: 405
|
yes the front hoses are the same
|
10-08-2022, 12:40 AM | #10 |
Drives: NCP90 TRD Yaris Manual Join Date: Oct 2022
Location: Auckland, NZ
Posts: 267
|
Sweet thank you. Whole set is going to be 225usd. Which I think is a pretty sweet price for basically the entire rear end and front erntire hubs lol
Should be able to drop the old one off and pop the new one on, Will just need to watch some guides on installing the handbrake cables. Once I get this done plan is a custom header, maybe the 1zz throttle body and last but not least Ive been searching for a decent LSD corolla gearbox that bolts up. |
10-08-2022, 11:00 PM | #11 |
Drives: 2007 Toyota Yaris 3 door Join Date: Sep 2018
Location: Arizona
Posts: 405
|
damn im jelous i bought everything new at my work with employee discount was still 1700$ i think, its hard to find rear disc yaris se out where i am that are in scrapyards
|
10-10-2022, 08:08 AM | #12 |
Drives: NCP90 TRD Yaris Manual Join Date: Oct 2022
Location: Auckland, NZ
Posts: 267
|
Yeah Im in New Zealand so we have NZ new Yaris and also japanese secondhand import Vitz.
NZ has for the last 40 years imported secondhand JDM cars enmass. We have a deal with japan for their secondhand cars. So there was a SE yaris that had the same brakes? |
10-10-2022, 03:12 PM | #13 |
Drives: 2007 Toyota Yaris 3 door Join Date: Sep 2018
Location: Arizona
Posts: 405
|
the usdm 2012-2018 toyota yaris SE was outfitted with larger front brakes and rear disc brakes compared to the lower level trims
|
10-11-2022, 03:50 PM | #14 |
Drives: 2015 Yaris Join Date: Aug 2022
Location: Florida
Posts: 16
|
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.
|
10-11-2022, 04:34 PM | #15 |
Drives: NCP90 TRD Yaris Manual Join Date: Oct 2022
Location: Auckland, NZ
Posts: 267
|
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 |
10-12-2022, 04:08 PM | #16 | |
Drives: 2007 Toyota Yaris 3 door Join Date: Sep 2018
Location: Arizona
Posts: 405
|
Quote:
tires are what affects your stopping distance in all reality |
|
10-13-2022, 10:58 AM | #17 | ||
Drives: 08 Yaris 3 Door Hatchback Join Date: Aug 2019
Location: ‘Murica!
Posts: 453
|
Quote:
Quote:
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. |
||
10-15-2022, 03:55 AM | #18 | |
Drives: 2007 Toyota Yaris 3 door Join Date: Sep 2018
Location: Arizona
Posts: 405
|
Quote:
|
|
Tags |
brakes, ncp90, trd yaris, upgrade, vitz rs |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
5 Lug Conversion | DarkShadowFox | Wheels, Tires and Suspension Forum sponsored by The Tire Rack | 60 | 05-18-2018 02:33 PM |
Rear SE axle beam swap | yariseggvvti | Wheels, Tires and Suspension Forum sponsored by The Tire Rack | 25 | 09-24-2017 11:26 PM |
60/40 split rear seat swap question | jayeh | Cosmetic Modifications (Exterior/Interior) | 12 | 10-28-2012 03:07 AM |
When will the Yaris hit the showrooms at dealers? | Petrolhead | New YARIS Purchase Forum | 181 | 11-28-2011 07:03 AM |
Catback exhausts and rear disc brake conversions | eTiMaGo | Performance Modifications | 59 | 01-04-2009 06:13 PM |