N80 brake upgrade

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N80 brake upgrade

Postby mccaw.d@gmail.com on Sun, 06 Oct 2019 1:55 +0000

Hi Guys,

Just completed a brake upgrade using 2015 Prado 150 calipers and rotors. Has to be the cheapest brake job I’ve ever done. The only mod required is to drill the Prado caliper mounts out from 12mm to 14mm. Everything aligned perfectly. Spent $150 on a set of calipers, $410 on a set of DBA T3 slotted rotors and $110 on a set of Ben Dix ultimates plus another $60 on having the holes drilled out by a fitter.

The N80 uses 319mm x 28mm rotors, the Prado uses 338mm x 32mm rotors. Tested is from 120km to dead stop and it saves about 15m over standard brakes. I would suggest a stiffer set of front springs and shocks as the nose really dives under heavy braking.

Dave
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Re: N80 brake upgrade

Postby numberplate on Sun, 06 Oct 2019 3:13 +0000

well done mate
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Re: N80 brake upgrade

Postby HK1837 on Sun, 06 Oct 2019 7:04 +0000

120 ‘cruiser should fit too if 150’s are that easy. The only difference is 4mm in thickness. The only reason I didn’t fit these to my 2011 is I was told I needed to upgrade the master cyl to run the 150 series calipers. The 2016 on Hilux master cyl must be more suitable.
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Re: N80 brake upgrade

Postby nicebike on Fri, 18 Oct 2019 9:25 +0000

That's a seriously sensible upgrade. Well done. :D Good value as well :D

Might also work with late 2013 onward N70 ? The late 2013 changes (full VSC etc package, bigger brakes and ADD) may have also included changes to the master cylinder ?.

Personally, as regards the master cylinder, I would suck it and see. If the 2011 M/C doesn't convert enough pedal pressure to pad pressure, it can then be upgraded.
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Re: N80 brake upgrade

Postby HK1837 on Fri, 18 Oct 2019 11:07 +0000

Bigger brakes started in 2011 when 17” wheels first became standard, then added to more in 2012.

There won’t be much advantage between the ‘120 and ‘150 rotors as they are the same diameter. The biggest gain is in the diameter increase.
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Re: N80 brake upgrade

Postby nicebike on Fri, 18 Oct 2019 5:20 +0000

HK1837 wrote:Bigger brakes started in 2011 when 17” wheels first became standard, then added to more in 2012.

There won’t be much advantage between the ‘120 and ‘150 rotors as they are the same diameter. The biggest gain is in the diameter increase.


Not sure where you are geographically, but 17s didn't become standard on the SR until late 2013 in Australia. They were available earlier as part of an option pack. Don't know about the SR5.
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Re: N80 brake upgrade

Postby HK1837 on Fri, 18 Oct 2019 6:01 +0000

NSW.

2011 SR5 diesel got 17” wheels in 2011. V6 SR5 didn’t until the 2012 facelift later in 2011. I thought SR got the 319mm rotors at the same 2012 facelift? Or did they keep the 297mm rotors with only the wide wheel VSC ones get them? I also thought the master cylinder on pre 2016 with 319mm rotors was the same as the earlier cars with 297mm rotors? The 2008/9 TRD had 338mm rotors and use the same master cylinder as the 297mm rotor cars.
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Re: N80 brake upgrade

Postby nicebike on Sat, 19 Oct 2019 5:31 +0000

That sounds right. My interest has only been in the SR which picked up the skinny 17s, VSC etc., ADD, and presumably the bigger brakes,as standard in late 2013. I'd be surprised if any SR model without the electronics package picked up bigger brakes, which would mean only the wide wheel VSC (option pack) ones prior to 2013.

It has appeared to me that a few of these changes seemed to hold hands on the assembly line. IE Get one, get all.

Again, not sure, but I would expect that any M/C changes would have accompanied that package, regardless of which model had the package.

For anyone contemplating the upgrade it would certainly be handy to know for sure which models to chase down for an upgraded M/C, if it became necessary. Genuine spares may be gold plated, or they may not.
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Re: N80 brake upgrade

Postby HK1837 on Sat, 19 Oct 2019 1:09 +0000

I left my master cylinder original with the ‘120 Series 338mm rotors and calipers but upgraded the booster to a PBR one from a Commodore modified to suit.
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Re: N80 brake upgrade

Postby nicebike on Sun, 20 Oct 2019 5:17 +0000

My brain works a bit slowly, but it has also occurred to me that this upgrade appears to create no problems with the electronics. :D

There's no reason why it should cause problems, but Toyota stability control and traction control programming can do some weird things, so winner, winner :D
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