Does a little go a long way?

[Wooster]

Interesting details here:  motorreviewer.com/engine_id=138

[TonyHSD]

1 hour ago, Wooster said:

Interesting details here:  motorreviewer.com/engine_id=138

It seems as good as it can go for a small turbo direct injection engine. I personally wouldn’t mind a Corolla with that engine if I don’t use it for work and travel so much, but as my normal car it would be great and fun 🏁👍

[Bper]

Read the article and does this mean the turbocharger should last longer. However do turbos normally have a shelf life or if driven without thrashing the car should they last the lifetime of the car.

 

The 8NR-FTS uses a water-cooled single-scroll turbocharger with a classic wastegate valve control. The water-cooled exhaust manifold in the head allows cooling the exhaust gases before its entering to the turbocharger what favorably affects the durability of that unit.

 

[Cyker]

It would definitely help, as excessive heat is one of the biggest causes of early failure and why turbodiesels are normally so much more reliable than turbopetrols (TD exhaust is much cooler). That cooling will reduce the turbo power significantly, as all that heat energy is being taken away, but they designed the system for efficiency and longevity over raw power anyway so it makes sense.

 

[TonyHSD]

2 hours ago, Bper said:

Read the article and does this mean the turbocharger should last longer. However do turbos normally have a shelf life or if driven without thrashing the car should they last the lifetime of the car.

 

The 8NR-FTS uses a water-cooled single-scroll turbocharger with a classic wastegate valve control. The water-cooled exhaust manifold in the head allows cooling the exhaust gases before its entering to the turbocharger what favorably affects the durability of that unit.

 

Yes it will last the lifespan of the car. Here a tip to extend turbo life , works in all turbo engines:

Always wait at least one minute when you start the car cold before driving off and always wait at least one minute before you turn the engine off after a long journeys over an hour for example or more. 👌

[Bper]

Thanks Tony for the advice.

This is the first turbo car we have owned and I do understand if you drive the car hard it can lead to problems.

Can you tell me what significance it makes by leaving the car for 1 minute before driving off and I minute after a long journey.

Does it also make any difference to the turbo on short journeys. 

Cheers

[Cyker]

That's good advice by Tony!

In the first case, gives oil a chance to circulate round the car so the turbo definitely gets oil pressure doesn't run 'dry'.

In the 2nd case, turbos get really hot, so letting it idle for a bit gives the oil a chance to take some of the heat away.

One of the worst things you can do with a turbo car is come off the motorway from driving at 70mph for an hour and pull into a services and immediately switch the engine off - If the car doesn't have a turbo timer, the oil flow will stop and the still very hot turbo will cook the oil that has now stopped flowing through it which will make it degrade faster and possibly bake it into deposits which will eventually block up, cause oil starvation, overheating turbo etc.

By letting it sit for a minute or so with the engine idling, esp. after a fast run, it gives the oil a chance to take that heat away so it isn't hot enough to cook the oil.

It's more important if the engine has been loaded; If you're pottering through town gently and then go home the turbo probably won't be hot enough that this is necessary.

[TonyHSD]

1 hour ago, Bper said:

Thanks Tony for the advice.

This is the first turbo car we have owned and I do understand if you drive the car hard it can lead to problems.

Can you tell me what significance it makes by leaving the car for 1 minute before driving off and I minute after a long journey.

Does it also make any difference to the turbo on short journeys. 

Cheers

Cyker has replied and explained even better than what I would have 🙂👌👍

[Cyker]

I already had someone on here scare me with such advice in the past when I had a turbo diesel so it's nice to pass it on  

[Bper]

Thank you guys, nice to learn something new everyday about these cars.

 

[TonyHSD]

5 minutes ago, Cyker said:

I already had someone on here scare me with such advice in the past when I had a turbo diesel so it's nice to pass it on  

It’s not a scare thing but true. My dad’s Passat turbo petrol still original after many years and miles, he always keep it running after arriving at destination and he never drive off before the rpm drops down to normal idling. He often enjoys 100mph on the motorway. His car is fast and there are no speed limits 

[Rhymes with Paris]

Do diesel turbos get as hot as petrol turbos?

Had a couple of turbo diesels , the Honda 2.2 and the pug 1.9 intercooler, luckily I was aware of the advice to give them a minute either end of a drive to circulate oil, and not cook it when stopping.

For the sake of a minute, I thought even if the diesel runs cooler than petrol, better safe than sorry.

Sorry, asked and answered further up the thread.

[Cyker]

If you're really giving it some they can get just as hot - I'm pretty sure my poor Mk1's turbo got pretty toasty when I was 'exploring' the countryside with it in past summers  

They cool down a lot faster than petrols tho' just because the average exhaust temps are a lot lower, but after I was told that advice I always did what Tony suggested, i.e. give it a sec for the oil to circulate before moving off, and e.g. get out and unload without turning off the engine after stopping to give it a minute to run before switching off.

It's a bit of an annoying ingrained habit now as I keep doing it with the Mk4 and then actually forget to turn it off because no engine sound, then have to go back to the car and open it again because it's beeping at me to say it can't detect the key any more and did I forget to turn it off  

[Bper]

I understand the advice of running V-Power now and again but do many owners run there cars solely on this. Apart from the price difference are there any issues with doing this.

[Cyker]

No real issues, in fact theoretically it should keep the engine in better condition, as there'd be almost no chance of knock damage and the fuel system would be very very clean with the constant circulation of detergents and such in the V-Power!

Some people do use it exclusively, but you only really get full benefit if you have a car that can take full advantage of the high octane rating, although a lot of turbo cars also benefit just because they naturally have a higher probability of knock.

Shell used to have a fuel grade called FuelSave, which was supposed to be normal fuel with V-Power levels of detergents and cleaning agents, but they seem to have discontinued it.

If you're on their loyalty scheme you also get more points (or whatever they do now!) for using V-Power than normal fuel.

[Bper]

What Toyota would be able to take advantage of the high octane rating. Does the 1.2T have a knock sensor.

[TonyHSD]

39 minutes ago, Bper said:

What Toyota would be able to take advantage of the high octane rating. Does the 1.2T have a knock sensor.

Every engine has a knock sensor and in many they are all the same Bosch thing. Higher octane fuel has better anti knock properties and combined with lower ethanol content or no ethanol at all it makes it better fuel with more energy release when burning, sadly has produce more harmful emissions. I do prefer to drive my hybrid purely on E5 99 from Tesco, the engine is quieter, it has more power and sharper response. E10 95 from some garages it’s fine and important to notice that in comparison with previous E5 95 this higher ethanol one can withstand knocking much better, as good as 99 E5 or even better. 

[Bper]

Does the Auris hybrid need a larger engine then the petrol version or would it have been possible for Toyota to have put in the 1.2.

[TonyHSD]

2 hours ago, Bper said:

Does the Auris hybrid need a larger engine then the petrol version or would it have been possible for Toyota to have put in the 1.2.

The 1.2 T has never been designed to be in hybrid cars. Toyota 1.8 hybrid has very similar petrol engine to 1.6 and 1.8 petrol only models, but all three are very different from your 1.2t. They has smelter 1.5 and larger 2.0 and 2.5 hybrids too. 

[Derek.w]

1.2 engine its wont pull the extra weight af a yaris hybrid so you no chance wirh a Auris

Even the 1.33 engine wont cope with the extra weight of the batterys ect.

[Cyker]

The 1.2T is actually more powerful than the 1.8 - You have to remember the 1.5 and 1.8 engines in the hybrids are Atkinson/Miller-cycle - They're a good chunk less powerful than an equivalent Otto-cycle engine, but in return are a good chunk more fuel efficient.

The 1.2T might work in a hybrid as the turbo will make it heat up quickly and get up to operating temperature a lot faster, esp. in Winter. Apparently it can even run in Atkinson/Miller-cycle mode so it might actually be more efficient, but the packaging would be a nightmare - The hybrid system already takes up a lot of room in the engine bay, so cramming the turbo, intercooler, oil feeds, intake and exhaust pipework might be too much...!

 

[DaddyBaddy]

Re: “Does a little go a long way?”
Depends on the context.

The makers of Fairy liquid seem to think so. 🤣

I suppose COVID-19 is another example of what was originally little 🦠 going a long way too 🌍 🫤

[furtula]

Only reason they did it is because of emissions.

Small engine, heavy car, with more components on top to break down as opposed to NA engine.

Consumption is not that better to justify it.

I'd go with NA engine anytime. Putting turbo on a small engine makes no sense to me, big engine is a different story.

 

 

[AisinW]

Turbo engine is becoming normal norm in Toyota world too, especially non HSD. 3.5L V6 Turbo replaces old V8, 2.4 L Turbo will replace legendary 3.5L V6.  It is all about emission and low rpm torque demands that benefit driving experience for most owners but not for 15+ years ownership. 

I still prefer Hybrid in Europe and may consider non hybrid in USA with 2/5 fuel price there. The V6 engine is really smooth and still sold in Lexus RX hybrid. Replacing Turbo unit is still cheaper than hybrid Battery and may fit buyers who shop for 10+y old cars. This is the time when we start preparing budget for a new hybrid Battery on hotter climates like Greece, Portugals, Spain, Florida, Texas, Arizona, Mississippi, Nevada, etc.

I replaced my hybrid Battery in my 220k miles, 12 years old Prius in FL for a used battery $800 and sold the car 3 months later for $3000. It does not make sense to buy $2800 new battery for $3k car value. 

Turbo engine is better for towing because of flat high torque starts at around 1500 rpm, naturally aspirated engine reach peak torque at around 4500 rpm. That's why HSD helps alot for the low rpm torque. 

[FROSTYBALLS]

Toyota fuel specifications are actually minimum requirements - eg '95 octane of higher' - so will run quite OK on unleaded or super unleaded. We usually run our cars on super unleaded - even before the introduction of E10. One of the main advantages of super unleaded is the better additive package.