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Thread: Does a turbo, like in the Toyota C-HR 1.2 litre, put a strain on the car engine?

  1. #1
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    Does a turbo, like in the Toyota C-HR 1.2 litre, put a strain on the car engine?

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    I read the Toyota C-HR has a 1.2 litre turbo engine. I've never owned a car with a turbo engine. Would the turbo shorten the life of the engine, or would it be OK if it was serviced properly and regularly?

    I couldn't imagine a Toyota engine being anything but reliable and long lasting but, as I said, I've never owned a turbo before. So I don't know.

  2. #2
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    No. The engine is built specifically to withstand the forces imposed upon it by the turbo. In any regard, the turbo in these isnít anything groundbreaking and is unlikely to even shorten the life of an engine not built for a turbo. Quite simply, a turbo pushes more oxygen into an engine than what is normally available. The computer injects additional fuel to keep the fuel/oxygen mix in balance and the world is a better place.
    As with many small engines these days, it would be pretty lifeless without the turbo.
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  3. #3
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    Smaller and smaller engine capacities need to be boosted otherwise they'd barely move the car they're in.
    Lots of cars have turbos now for this reason, essentially maintaining power output with better fuel economy.

    My car has 220,000km on the original turbo and it's not had a real easy life but still boosts along well enough.
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  4. #4
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    Quote Originally Posted by Hipsi View Post
    No. The engine is built specifically to withstand the forces imposed upon it by the turbo. In any regard, the turbo in these isn’t anything groundbreaking and is unlikely to even shorten the life of an engine not built for a turbo.
    That sounds interesting. Thanks for that.
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  5. #5
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    Pamount, all the above answer are right but worth keeping your oil changes up to date. Normally aspirated cars oil has internal engine grit as an enemy but also heat. In a turbo car, the turbo generates more heat to break the oil down.
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  6. #6
    Senior Member artman's Avatar
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    Turbo engines are great, you get power when you need it, economy when cruising. I would hesitate to buy a new car without a turbo, so much more efficient (generally speaking).

    They were reliable many many years ago and now even more so. As above, oil is critical but a good quality fully synthetic oil will work great. I would guess that a turbo engine car would have fully synthetic oil specified anyway.

    Cheers
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  7. #7
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    Just as an industry thing as I work for a car manufacturer and am aware of future products coming through.

    There will be a change back to higher capacity engines. Smaller engines struggle to gain real world fuel economy whereas larger do better in real world. There was a point where manufactures and some still do design an engine to get a good sticker reading on the standard fuel consumption test. Itís a unique paradigm thatís involved in what you want.

    In terms of if itís bad, I would these days be looking at the brand and not the technology. With the acl legislations companies like Toyota (not the one Iím employed by) look after regardless of warranty.

    As with anything in the long run (15-20 years) the turbo will be more expensive but most only keep 7-8 years so it doesnít bother us all
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  8. #8
    Senior Member artman's Avatar
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    Agree that it can be too extreme and if the motor needs to be flogged all the time because it is too small then the gains can be lost. I had a WRX and my mother in law had a non turbo impreza of the same year. mine had way better economy in all situations and the performance was on a completely different level if required. She should have gotten a WRX!!

    Cheers
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  9. #9
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    Really need 8+ litres capacity and 2 turbos. In 2200lb car if possible. Very safe for overtaking and merging
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    Quote Originally Posted by Jackster View Post
    Really need 8+ litres capacity and 2 turbos. In 2200lb car if possible. Very safe for overtaking and merging
    Something like the BUgatti Chiron

    8ltr W16
    quad turbo charged
    0-100 2.4 sec
    200km 6.1 sec

    and oh so very economical

    35.2 l/100

  11. #11
    Senior Member Yelta's Avatar
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    Not sure about a "strain on the cars engine" turbo's will put a strain on your pocket when repair bills arrive.

    Blew a hose on the turbo a few weeks back, there are two hoses (similar to a radiator hose) repairer advised me to replace both, $315 each, total bill inc labour $920.

  12. #12
    Senior Member rusty888's Avatar
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    Yelta, I feel you on that one. Depending on the manufacturer the parts business is a lot more profitable than the whole car business.
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  13. #13
    Senior Member Yelta's Avatar
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    I was concerned I had blown the turbo, $5000 plus the repairer told me turbo's are very reliable and seldom fail, hoses are the weak point.

  14. #14
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    Turbo can give not only more power, but also significantly more torque which makes driving more "relaxed".
    ive had many turbos, so far with no problems,..but i do not drive them hard.
    personal favourite is a 2 ltr diesel turbo with auto gearbox (dual clutch like Ford or VW)
    that makes for very torqey , smooth drive with plenty of instant power if needed. Economical also.

  15. #15
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    Hi Pamount,

    Turbos are a proven technology.

    To answer your question...Yes turbos will put extra strain on your engine...It's natural, the harder your engine will work the more strain you will put on it... But not more than your engine can handle... Engines are made to withstand incredible strains...When developing engines, the car manufacturers will run the engines flat out under full load until destruction or fail...This process can take a long time....So the strain turbos put onto the engine fades into insignificance really.....

    You can expect more maintenance and more regular checking but that is a small price to pay when you compare the benefits of having a turbo/s in preference to not having one. Of course, if you dig the boot in all the time, they will not be economical, as no car would, but hey, what's the use of having something if you are not going to test it out now and then?

    As mentioned up top, they create more torque and more power and some vehicles have twin turbos fitted...One smaller turbo and one larger turbo...One to get the car going and the other to keep it cruising...

    Trucks have turbos fitted, this gives them more torque, power and efficiency...

    I remember driving the old diesel Land Cruisers once or twice and what slugs they were, then when Toyota fitted tubos to their diesels, Oh what a difference......

    Personally, I wouldn't worry at all about if a 1200cc engine could handle a turbo or not...Particularly with the way Toyota are..As you say, they make a reliable car and it would be well and truly tested. I can't see the C-HR being any different

    I haven't been lucky enough to drive one...They look a fun car...Are you thinking about buying one?

    Cheers.
    Last edited by bigdaddy; 1st March 2018 at 04:51 PM. Reason: Grammer, spelling
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  16. #16
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    Due to the standard fuel tests being a pile of BS aimed to make small petrol engines look way better than they are, the only cars I would consider buying today are turbo diesel or electric. Oh, and turbo tech is reliable as long as you keep the oil and filter "correct grade and clean". Not a surprise given the usual turbo speed is over 50,000 revs!

    Electric: Possibly Nissan Leaf or the new Tesla (if they can get one to go around corners better than a home made billy cart). Fuel costs zero for my use.
    TD: Probably the manual i30 TD as every person I know that has one keeps it. One friend's has done more than 600K kms with no issue plus amazing economy - try getting 1800kms out of less than 45 litres every fill with something else (even the i30TD auto is battling to get half that). The i30TD even pulls up our Greenmount Hill (possibly Perth's closest thing to a long hill) in top gear in either manual or auto trim. Now if they made it in 4WD I would pick one up tomorrow - pity the Soob diesel uses Noah's tech or it would be on my list. I have done over 500kms in various i30s and the TD is so much better on gravel and other surfaces compared to the petrol. Every time I drive one I am impressed all over again. Coming from a 450SEL Merc owner with the self levelling suspension, that surprises me a little.

  17. #17
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    Quote Originally Posted by Yelta View Post
    Not sure about a "strain on the cars engine" turbo's will put a strain on your pocket when repair bills arrive.

    Blew a hose on the turbo a few weeks back, there are two hoses (similar to a radiator hose) repairer advised me to replace both, $315 each, total bill inc labour $920.
    I'm sorry to see that happen to you. I hope nothing like that happens again.

  18. #18
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    Quote Originally Posted by bigdaddy View Post
    I haven't been lucky enough to drive one...They look a fun car...Are you thinking about buying one?
    I'm considering the Toyota C-HR, for when the time comes. But I'm favouring the Camry, possibly a hybrid. I am concerned about the C-HR possibly being more expensive than the Camry in running costs. I'll just have to look at it some more.
    Last edited by pamount; 2nd March 2018 at 08:07 PM.

  19. #19
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    Quote Originally Posted by pamount View Post
    =But I'm favouring the Camry, possibly a hybrid.
    You should get the new 2018 SX V6 Camry, 224kW and 362Nm. Absolutely ludicrous amount of power for a Camry.

    It also gives you the benefit in car conversations to say you drive a 300+ horsepower car and having a laugh when you tell them what it is.
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  20. #20
    Senior Member Rocky's Avatar
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    I put a query up on my MX5 Forum as there are some very knowledgeable people on there.
    'Nitro Dann' knows what he's talking about.

    Turbos and Engine Life - mx5cartalk.com
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