2014 Corolla Altis - Technical, Features & Use

[ConnorMcLeod]

I try to pump up the tires by 10 psi also... cos of better consumption...

this is what I _wanted_ to do.

but with different station, i wonder if the pumps were calibrated the same.

 

When I go to pump at my regular station on monthly basis, the psi nearly does not drop much within the month, e,g, start of month at 230psi and one month after 22x psi.

 

this time i saw instead of 22x psi, it was 20x psi and then i pumped until 230 psi.

 

I will check at my regular station next week to see if the pressure is higher then 230 psi,

to prove/disprove my hypothesis.

[ConnorMcLeod]

I try to pump up the tires by 10 psi also... cos of better consumption...

 

i was told for long drives, e.g. to Malacca or further, better to pump higher .

this reduces the contact area of tyre to road surface, and in turn reduces the friction & hence heat and avoid blowing the tyre. I don't know how much truth is there although the physics makes sense, so I just follow it since it does not cost me to pump higher (except maybe fc).

Eh... I think you meant 10 kPa. 

 

The same time or different time regular vs non regular station?

Time is also a factor. 

 

ok kPa. Yes I think psi should be 33... or something in this range.

 

not sure if I understand your question.

 

regular station , pumps monthly, between pumps 230 -> 22x kpa.

before trip, non regular station, starting pressure was 20x kpa for all four tyres (and spare was at 19x kpa). and I just pumped 2 weeks ago at my regular station.

Edited March 16, 2018 by ConnorMcLeod

[Mkl22]

i was told for long drives, e.g. to Malacca or further, better to pump higher .

this reduces the contact area of tyre to road surface, and in turn reduces the friction & hence heat and avoid blowing the tyre. I don't know how much truth is there although the physics makes sense, so I just follow it since it does not cost me to pump higher (except maybe fc).

 

 

ok kPa. Yes I think psi should be 33... or something in this range.

 

not sure if I understand your question.

 

regular station , pumps monthly, between pumps 230 -> 22x kpa.

before trip, non regular station, starting pressure was 20x kpa for all four tyres (and spare was at 19x kpa). and I just pumped 2 weeks ago at my regular station.

The need to increase the pressure is actually for high speed drives. At high speed the tire will grow a bit in size due to centrifugal forces. This larger size causes the pressure to drop. Thus if your pressure is not compensated, then you add stress on the side wall and a blow out can occur. This is the real reason why at high speeds you need to have a higher pressure. It is some what opppsite to the reduce contact patch bit.

[ConnorMcLeod]

slightly off topic.

long time did not drive to MY (~3 yrs).

noticed many speed cameras installed along the highway.

last time the signs for speed camera operation was only the sign.

now is sign and camera later.

so pay attention.

The need to increase the pressure is actually for high speed drives. At high speed the tire will grow a bit in size due to centrifugal forces. This larger size causes the pressure to drop. Thus if your pressure is not compensated, then you add stress on the side wall and a blow out can occur. This is the real reason why at high speeds you need to have a higher pressure. It is some what opppsite to the reduce contact patch bit.

 

this is new information to me. Thanks.

https://www.tyreleader.co.uk/tyres-advices/adjust-tyre-pressure-to-speed

Edited March 16, 2018 by ConnorMcLeod

[Mkl22]

slightly off topic.

long time did not drive to MY (~3 yrs).

noticed many speed cameras installed along the highway.

last time the signs for speed camera operation was only the sign.

now is sign and camera later.

so pay attention.

 

 

this is new information to me. Thanks.

this is completely unrelated to contact patch topic.

Maybe my understanding is also not fully correct. I quote the experts.

https://m.tirerack.com/tires/tiretech/techpage.jsp?techid=72

[teomingern]

Eh... I think you meant 10 kPa. 

 

The same time or different time regular vs non regular station?

Time is also a factor. 

 

Oh yes!

[Kklee]

 

not sure if I understand your question.

 

regular station , pumps monthly, between pumps 230 -> 22x kpa.

before trip, non regular station, starting pressure was 20x kpa for all four tyres (and spare was at 19x kpa). and I just pumped 2 weeks ago at my regular station.

 

I meant the actual time that the tyres were pumped.

There is a slight temperature difference due to variation of ambient temperature. 

 

In my experience, I pump at different Caltex stations near my work place, the same model of pump seems to be similar.

When I use the pump at the SPC close to my place,  that  particular non digital pump tends to over inflate by about 10 kPa.

Maybe my understanding is also not fully correct. I quote the experts.

https://m.tirerack.com/tires/tiretech/techpage.jsp?techid=72

 

Eh...i think I don't really reach that kind of speed anymore.

[ConnorMcLeod]

I meant the actual time that the tyres were pumped.

There is a slight temperature difference due to variation of ambient temperature.

 

In my experience, I pump at different Caltex stations near my work place, the same model of pump seems to be similar.

When I use the pump at the SPC close to my place, that particular non digital pump tends to over inflate by about 10 kPa.

 

 

Eh...i think I don't really reach that kind of speed anymore.

Indeed the ambient temp n distance travelled are different between my regular pump n non regular pump. If in your case you observe 10kpa difference, then I suppose mine would haVe the same or a but higher diff.

[Kklee]

Indeed the ambient temp n distance travelled are different between my regular pump n non regular pump. If in your case you observe 10kpa difference, then I suppose mine would haVe the same or a but higher diff.

 

 

You can try my rule of thumb on pumping pressure when tyres are hot if it is applicable to you..

 

Ambient temperature at start time - about  25-27 degrees Celsius

Pump time - after 10km and before 9am. 

 

Front - 15-20 kP from recommended

Back - 10-15 KPa from recommended

 

P.S. for non agressive drivers please. 

[ConnorMcLeod]

Maybe my understanding is also not fully correct. I quote the experts.

https://m.tirerack.com/tires/tiretech/techpage.jsp?techid=72

[teomingern]

I try not to pump up when I have driven a long distance cos the pressure measured isn't accurate as the tires would heat up and the internal pressure will be higher than at ambient temperature. I think travelling like 1-2 km is ok.

[Kklee]

I try not to pump up when I have driven a long distance cos the pressure measured isn't accurate as the tires would heat up and the internal pressure will be higher than at ambient temperature. I think travelling like 1-2 km is ok.

 

I do so because i have no time in the morning and also I travel the same route.

In the morning, the TPMS will indicate if the pressure are consistent. 

[teomingern]

I do so because i have no time in the morning and also I travel the same route.

In the morning, the TPMS will indicate if the pressure are consistent.

Oh I pump on my way home... the petrol station happens to be less than 1 km from my work place...

[ConnorMcLeod]

With all this info I start to think:

- my regular station is 1-2 km from office which I pump on way home in evening

- non regular station is Just down the road from home in morning

- it is possible I under inflat at my regular station (higher amb temp n longer drive )

 

Anyway I just use butt sensor to feel the diff in ride quaLity n decide which is better choice

[DACH]

Based on the 2019 Corolla Hatchback, Toyota finally gets serious about building a sport compact car

http://www.nydailynews.com/autos/news/2019-toyota-corolla-hatchback-preview-article-1.3891749

 

After a weeklong cross-country sojourn that began in Los Angeles, the publicity stunt that was a Toyota Tundra towing a large egg has, er, hatched in the heart of the Flatiron District. And what little chickadee emerged? The all-new 2019 Toyota Corolla Hatchback.

Making its North American debut ahead of next week’s New York International Auto Show, the compact 5-door may be diminutive compared to the popularity contest-winning crossover segment but is just as practical and chock-full of Toyota’s latest and greatest in terms of connectivity and safety technologies.

Small package, big design

More than just the packaging, the redesigned hatch drops the “iM” badge from its name, adds “Hatchback,” and also grows dimensionally for a bolder profile. Early numbers put the 2019 model at 1.5 inches longer in wheelbase and overall length as well as wider by 1.2 inches. Height is lowered by an estimated inch, however, but paired with wider front and rear tracks, this only further accentuates the vehicle’s visual athleticism.

But, wait. This is a Toyota after all, and Toyota is not a company not known for outlandish designs (save for its corporate sibling Lexus). Also, the Corolla nameplate remains the best-selling vehicle in the world, having eclipsed 40 million units back in 2013. So, while its design can and should be updated, things don’t get too crazy.

Available only in SE and XSE trim levels, the Corolla Hatchback’s new design language is immediately aggressive in tone but approachable in nature. A large, trapezoidal-shaped mesh grille is a refreshing change of face from the outgoing Corolla iM’s otherwise forgettable expression. New slimline LED headlights paired with available LED foglamps complete the handsome hatchback façade.

Its side profile features more streamlined and minimalist character lines that promote the Corolla’s newfound visual appeal all the way to its restyled rear hatch, bumper, and LED taillamps. Its slender and muscular profile conjures comparisons to the sleek Mazda3 5-door rather than the upright utilitarian looks of the Hyundai Elantra GT and Volkswagen Golf.

Distinction between the two trims will be apparent. Upgrading to the Corolla Hatchback XSE adds 18-inch alloy wheels, along with LED foglamps, extra exterior chrome accents, and adaptive front headlights. The 2019 Corolla Hatchback will be available in seven colors, including the new-for-2019 Rival Blue.

(Hopefully) improved power and performance

To back up its sporty new look, under the sheet metal, the new hatchback sits on the Toyota New Global Architecture (TNGA) platform and features a sport-tuned suspension. And thanks to generous use of aluminum, high tensile, and ultra-high tensile steel, the all-new Corolla is estimated to be lighter and, subsequently, more fuel efficient. Torsional rigidity is said to also have improved a whopping 60 percent compared to the outgoing model.

An all-new powertrain is paired with this lightweight Corolla in the form of a 2.0-liter Dynamic-Force inline-four, which itself is lighter and smaller than the outgoing 1.8-liter 4-cylinder of the Corolla iM.

Unfortunately, as this is written the automaker is mum on official horsepower and torque figures but the new engine does feature a compression ratio of up to 13:1, which generally translates to improved power. Its lighter weight and improved overall efficiency should accompany better-than-2018 output figures, but how much better over the 137 horsepower and 126 pound-feet of torque supplied by the Corolla iM remains TBD.

Transmission options are new, too, with a 6-speed manual or continuously variable transmission with 10 simulated gears available. The CVT offers a Sport mode, paddle shifters, and the world’s first launch gear in a CVT-equipped passenger car. The launch gear is estimated to improve shift speeds by 20 percent, making for smoother acceleration.

Tons of technology

In terms of connectivity, all Corolla Hatchback models are equipped with a rather prominent 8-inch customizable multimedia touchscreen, which protrudes from the top of the dashboard and offers access to vehicle settings, audio, navigation, and smartphone integration via Apple CarPlay. Additionally, the system features six speakers, Amazon Alexa, Wi-Fi capability, Bluetooth, and Entune 3.0 apps.

Standard for XSE trims, the upgraded Entune 3.0 Audio Plus adds a slew of radio-centric features, such as HD Radio and satellite radio. These are options for the SE trim, but only when it is equipped with the CVT.

A premium version of the infotainment system is optional with XSE trim and the CVT, and includes a JBL 8-speaker 800-watt sound system, advanced voice recognition, a dynamic embedded navigation system, and more.

As great as these infotainment selections are, a key selling point with smaller vehicles is safety and the all-new Corolla Hatchback doesn’t disappoint. Toyota Safety Sense 2.0 is standard, and this updated suite of safety systems is a first for the North American market.

Highlights include adaptive cruise control, lane departure warning with lane keep assist, automatic high-beam headlights, and a pre-collision system that features forward collision warning, brake assist, and automatic emergency braking. Additionally, a rearview camera is standard while blind spot monitoring is available on SE trim and standard on XSE models.

With a CVT, the adaptive cruise control is upgraded for full-speed-range operation. The forward collision warning system’s pedestrian detection technology now works at night as well as during the day, and a new cyclist detection feature is good during daylight hours.

Also new is Lane Tracing Assist, which is for highway and freeway driving only. Only enabled when using adaptive cruise control, the system essentially helps to keep the car centered in the lane of travel, actively tracking the center of the lane (with or without road markings) and providing steering assistance to reduce driver fatigue.

Sound good? You won’t need to wait long. The all-new 2019 Corolla Hatchback is expected to arrive in dealerships this summer with pricing (and engine power specs) to be released closer to its on-sale date.

 

 

[teomingern]

The same ugly pinched look as the Prius...

[DACH]

The same ugly pinched look as the Prius...

 

I think it looks much better than the Prius. 

[Sglanevo]

I meant the actual time that the tyres were pumped.

There is a slight temperature difference due to variation of ambient temperature.

 

In my experience, I pump at different Caltex stations near my work place, the same model of pump seems to be similar.

When I use the pump at the SPC close to my place, that particular non digital pump tends to over inflate by about 10 kPa.

 

 

Eh...i think I don't really reach that kind of speed anymore.

I guess best to try out tpms to monitor the tyre pressure for u.

Been using it for a while, tells me hw the tyre pressure change during idle, normal, hot and cold temperature affects the reading.

 

Am using orange p series internal tpms. So far so good.

They are other internal and external tpms out there which also works the same. Just sharing that its good to hve but not necessary.

 

You guys can search and read up on too low or much pressure affects wat. Cant rem also. I just pump to what specs written at side of my cardoor.