GR Yaris Rallye - Oh Too Easy

Eek... even at 40 youre too high, the plate on the drivers door jam lists what the pressures should be, more like 32 than 40... it'll handle better for sure.
48 is dangerous, but 40 is still way too high. After a bit of driving that will be up around 45 PSI. A pneumatic tyre relies on deformation for grip, as well as providing a dampener to NVH. With the pressure too high it won’t perform properly under lateral load.

One of the benefits of a lighter car is that you can run lower pressures for the same size of tyre, increasing grip without deforming the tyre too much.

Even road cyclists make this mistake when they first get a road bike. They think 115 psi in their 25 mm tyres will make them faster. Nope, just vibrates the crap out of you making you tired and slows the bike down, as the whole bike has to move up and down over every little bump.
 
Eek... even at 40 youre too high, the plate on the drivers door jam lists what the pressures should be, more like 32 than 40... it'll handle better for sure.
I have in the past been advised by various tyre shops that the manufacturers settings are on the low side and this can result in less tyre life. On day of delivery I went to my local tyre shop and they set the tyres at 40. On the face of it 32 does seem low for a performance car however I can see it makes sense eg the car being relatively light weight. I will reduce to 32.

I’ve just come out of a base version GR Yaris/Convenience Pack. I am overall preferring the Rallye but one observation is that the Michelins produce greater road noise than the Dunlops, I wonder whether this could be due to the higher tyre pressure.
 
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I tend to play with tyre pressures and work out what i like. I can say for sure that 275 is way too high for me. It makes the car fidgety. I like the 220/200 combo as it feels like the tyre is gripping better and the car rides better and suits my driving style. YMMV tho...

Either way, I didnt expect the dealer to stick in 275 all round when the car in their specs (its in the door jamb FFS) lists 220/200... especially when i specifically said not to touch the wheels. :oops:

I mentioned this so we all know its worth checking the work the 'trusted' service guys have done to your car when you get it back.

IMHO they were lazy and probably use the same setting for every single car that comes through each day. In my view, thats not correct and they shouldnt do that, its wrong.

It also makes you wonder what else they did or didnt do. Ie what oil was really used? The one from the gantry oil line where all you have to do is dial in the amount you need and let the slurp/fill hose do its work, or did the (probably) apprentice actually go and find the specific oil from the stores and decant the correct volume into a jug and fill the car?

When incentivised to do work quickly I think we all know what happened... The sooner we find a specialist the better.
 
Jon do our cars have TPMS in Australia? I cannot find it in any of the menus or the manual.
 
Jon do our cars have TPMS in Australia? I cannot find it in any of the menus or the manual.
Nope. Thank god. Im not a fan, the ones ive had before were useless or very slow to register (ie many kms). so, pointless. YMMV tho, Ive read (on here) guys say how happy they are with them.

I do wonder if the TPMS can be switched on in the Aussie cars if you fit the sensors that you can buy (from aliexpress some said?). I'll leave that to someone else to try tho, I'll just check my tyre pressures each week. Thats why i bought the Jamec Pem I mentioned earlier (get the old model if anyone reads this later, its much more accurate than the new one).
 
I have TPMS in the HSV GTS and it has saved me on one occasion. I also have after market ones I fitted to the wife's car and that has saved a tyre or two as well. Before that we have both driven on flat tyres in the Megane as there is no feedback from the road wheels and I only noticed on a long drive when I changed lanes and the tyre noise changed note. Strangely have not had any problems since my son moved out and stopped dropping screws in the driveway.
I note that it is a UK, US and EU requirement for some form of TPMS or warning from the wheel speed counter. No legislation in Australia.
 
I have TPMS in the HSV GTS and it has saved me on one occasion. I also have after market ones I fitted to the wife's car and that has saved a tyre or two as well. Before that we have both driven on flat tyres in the Megane as there is no feedback from the road wheels and I only noticed on a long drive when I changed lanes and the tyre noise changed note. Strangely have not had any problems since my son moved out and stopped dropping screws in the driveway.
I note that it is a UK, US and EU requirement for some form of TPMS or warning from the wheel speed counter. No legislation in Australia.
Back in 2011/2 there was talk they would be mandatory from about 2012, but obviously that didnt happen. Same era they talked about reverse cameras as well.

My issue with many of these things is that they let us become very lazy owners and drivers. Im not anti tech at all, I just feel that its not hard to check tyre pressures and for optimum performance and fuel economy it should be done often. These days owners seem to never touch their car at all, just whack fuel in (or electricity) and let the dealer do the work. 6 or 12 (or more) months between oil/coolant checks is one thing, but tyre pressures... hmm... same reason we have huge washer fluid bottles... sigh.

As I said, I get its been great for other people, just not for me. I guess if i'd had had cars with good TPMS that would actually tell me before i drove off that the pressure was wrong in one (or more) tyres right away then id believe in the tech, but my experiences were it took up to 5km later till i got a light and a beep. Thats stupid. If the tyre was flat at home on my driveway where its safe to swap a wheel, why instead let me know later that there is an issue? Even a few hundred meters from home leaves me stuck replacing a wheel on the side of a very busy road and blocking traffic (issue of where i live YMMV). Personally I often walk round the car and have a quick look, it takes seconds to do. People did it this way for over a hundred years...just sayin.

FWIW The GRY is filled to the brim with safety tech that is intrusive and also misses the mark. BRAKE! messages, and actual braking when not needed, dragging the steering over if near the white line towards cyclists, speed sign recognition that will read phone numbers etc etc. The last thing I want is another half baked 'safety system' lol.
 
I'm of a different opinion with the TPMS personally. I do alot of long drives out from Brisbane, often hundreds of kilometers at a time, often fairly remote. On daily driving, it's good to glance down and see a fairly consistent 32 psi or thereabout at all 4 wheels. Thanks to asshole tradies who seem to love just dropping random screws in my street if building new houses, I've often got many punctures, or even more problematic - slow punctures in my previous cars. While in theory going around checking tyres every time sounds ideal, it doesn't happen in the real world and if I get in the car and see 32 / 32 / 32 and 25 psi across all four tyres with a TPMS (even if it's 5km down the road) that's a pretty good indication I probably have a screw in my tyre. And definitely better to find out there and then rather than feeling a flat tyre at high speed on a spirited run 300km from home...

FWIW I check my tyre pressures with a race gauge fairly regularly, but even that isn't much use if I'm on a spirited drive and pick up a puncture and only realise it when I feel the back of the car feeling very odd at high speed.

Just me though, personally I would have preferred the TPMS rather than the heated seats and steering wheel, especially in Brisbane. :LOL:
 
Like it should have been from factory, person who specified the oversized rear view mirror was clearly having a bad day at the office!
I just did the same and noticed something that may explain the mirror operation. Mine is a circuit pack. The loom in the car that plugs into the mirror has only two wires. The mirror plug has 5. I could see daylight through the loom connector unused pins. I think that a lot of the potential functionality of the mirror is unused. Would be interesting to know what is missing if anyone can get hold of the wiring diags for the mirrors.
 
I just did the same and noticed something that may explain the mirror operation. Mine is a circuit pack. The loom in the car that plugs into the mirror has only two wires. The mirror plug has 5. I could see daylight through the loom connector unused pins. I think that a lot of the potential functionality of the mirror is unused. Would be interesting to know what is missing if anyone can get hold of the wiring diags for the mirrors.
If you look at some of the other mirror threads on here and the other forum there were some examples of other GenTex mirrors and i reckon if you can find the right wiring diagrams you will be able to identify the wire colours to see the functions.

Im guessing they would be feeds to tell some other computer what the sensors are saying perhaps, or something to feed the mirror to switch on/off the dimming in certain situations?
 
Been a little while since Ive updated this thread as in the past 6 months Ive been on a long holiday and since I got back the GRY has just been used as a daily / shopping car. I did sell the WRX last week so Im now down to just the Evo and the GRY.

Here is a final WRX pic... Sold to a young lady who'd wanted a Hyperblue Edition (only 200 made) since they were launched when she was 18 and since she turned 25 this month she could finally afford the insurance. She was so very excited to finally fulfil her dream and was so pleased that she found a nice, clean condition low mileage one. I hope its as great a car for her as it has been for us the past 6.5 years.

WnhNSq0.jpg


Q. OK, so what is new with the GRY?

A. Another dealer service... the 2nd one!

While 2 weeks back it turned 1year old, yesterday it got its 12mth service. It has just 3800km on it. 2000 since the first service.

I tried another dealer. This time Castle Hill Toyota. I chose to go there as while its not the closest after Pennant Hills Toyota (who even though Ive told them directly that I wont be going back still email me weekly), it's the place that the Aussie FB forum guys recommend in this area due to the GR Tech being good.

My first attempt was abortive 2 weeks back as when i arrived the GR Tech was on a day off and I had specific things I wanted to talk to him about. Apparently it wasn't the service desk jockey's fault I arrived when the GR Tech wasn't there, it was 'the first time he'd seen the booking' listing the service and the things I wanted to talk to the tech about. Er ok... It was made about a month earlier and no one had bothered to scan the incoming bookings then. Not an auspicious start. I went home after rebooking for 10 days later.

Anyway, yesterday I arrived and things went better. Car was taken in and I got to go for a drive with their GR Tech Craig who knows these cars well. He worked with Andy of Motive Garage to build their 500KW GRY etc.

Craig noticed the gear issues right away, even when warm. He had some ideas on fixes with the linkage and also using a different gearbox oil. He didnt need to have any lengthly approvals by Toyota Aus to get started and fitted me in to have the work done the same day by him. Great News.

It did take most of the day and I was waiting at the dealer which was a bit soul destroying, although they offered plenty of times to run me to various train stations or the local mall. Instead I did chat to the salesman who allowed me to test drive my first GRY 18+months ago, although we couldnt make a deal on my order as he was insistent on RRP. He bought his own GRY and is a huge fan, loves it. While chatting I had a walk round/sit in the GR86. I know people love them but it all seemed a bit 2012* to me. It's a pretty thing to look at, but you can tell its a restyle and not a new car imho. It also makes the inside of the GRY seem spacious lol They had a lightly used 2nd hand one in the showroom for 10k over list. sigh.

* - I had a drive of one as I was tempted in 2012, it wasnt for me.

While working on the car it was found that the gear linkage was set perfectly in line at the factory so was adjusted to be offset slightly and the oil that came out wasn't like metallic paint, so nothing was being overly worn out using it as it was - I never hurried the change when cold though and always babied it until it was warm. As suggested up front the fix was a combination of the different weight oil and a light adjustment. Also I was told that I wasnt alone with this issue, a local guy had the same problem and the same fixes were applied and he hadn't come back so the assumption was that all was well.

Anyway, slow and boring day aside I got the car back just before 5pm. One the way home it was better but to be honest it was pretty good when warm before, the acid test would be when it was cold.

Today I went out for a quick spin with everything cold and grabbed second like a normal car, ie faster than Ive ever dared, and it went home with no graunch. Superb! It is notchy but im cool with that. It finally doesn't feel like im killing the gearbox with 1-2 changes when cold. Phew!

To be honest the synchro graunch/baulk when cold was disappointing and not at all what I expected with the GRY since everyone else seemed to love their gear change. The the first dealer suggested it would wear in with use, which was obviously rubbish, when i mentioned it at 1800kms. Mechanical sympathy meant I'd take quite a long pause between 1st and 2nd and very gently/slowly slot in the lever feeling it go home, especially in winter where the 10deg less in temps really worked against the gearbox oil's viscosity. Hardly sportscar material.

Checked the tyre pressures as well today. So, last time I received the car back from the previous dealer with 275kpa all around. This time it was 240. sigh. Id even discussed that with the GR Tech so it was annoying. It clearly states what the pressures are (220 front and 200 rear) on the door pillar and its a few simples presses on the kind of digital pressure gauge main dealers use.

This kind of lazy workmanship is a barrier to car guys wanting work done within the franchised dealer network. I know the GR Tech isnt the guy who does the wheel rotation and tyre pressures, thats a normal tech, but its not good. I could immediately feel the tyre pressures were off when i drove it home, it just didnt handle like I expected and it wasnt like i was throwing it about, just driving in rush hour traffic.

I expect some will suggest that its the difference between my gauge and theirs, but I run a very accurate JAMEC PEM unit which isnt some cheap rubbish. I would think their setup would be similar in quality. The fact my gauge measured each tyre at 239 suggests they gave each wheel a dose of 240kpa pretty accurately.

I called the GR Tech to let him know the fix was successful and also to let him know about the tyre pressure thing, he was pleased with getting feedback so quickly and that the gearbox was better, he was less happy about the tyre pressures and was off to talk to the guy who did the work after the call. Good on them for acting on the feedback so quickly.

Anyway. All in all a much better experience than last time. I'll use them going forwards while Craig still works there at least.
 
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I forgot to add that I also had the dealer check the suspension bolts as I have a hollow clonk on reversing off my driveway. I dont think this brake pads moving as i have that in my Evo and this sound is more lower toned and 'hollow'.

They retorqued the suspension bolts and the driveshafts.

Its still there, but quieter now. We'll see.
 
I do wonder if the TPMS can be switched on in the Aussie cars if you fit the sensors that you can buy (from aliexpress some said?).
It's been done successfully in Australia.

IIRC there's a module that needs to be added and it communicates with the CAN Bus and I guess the sensors. Then, once the in tyre sensors are added, apparently you automatically get the TPMS display on the dashboard.

I have seen a TPMS module on AliExpress for other Toyota models, I'm not sure if it's the same?
 
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