Driving it while it is functioning properly you don’t even know it’s there. The question is how does it drive when it’s not happy with its self.
Stellantis Hurricane4 Engine Reveal
- Thread starter OneLonelyBurrito
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I had one as a rental. It's very quick and responsive for such a small displacement engine. My wife actually got a speeding ticket driving one. I think Nissan recently issued yet another recall due to a high rate of failure, because the engines are running at elevated temps and cooking the oil. Not sure how much of that is maintenance vs the engine itself. I'm sure it would be fine with a quality synthetic, but Nissan drivers aren't known for their strict adherence to the maintenance schedule and Nissan itself botched the service interval on the CVT. Hopefully they can get the issues resolved.
Toyota added hybrid components to their T24A-FTS in the "hybrid max" variants. It is truly a wonderful powertrain - the electric power fills in for any turbo lag. Any fuel economy improvement is highly suspect, but the performance and drivability are top-notch.
No way this engine would survive a life of 10,000 mile oil changes I stick with 5,000 or 6 months. During the summer I’ll do closer to 3500 and get the oil filter next round so sometimes it’ll get a 3rd shorter interval oil change minus the filter. Yes extractors are lifesavers I also use the OE filter it’s a lease but try to treat it as it were my own. I feel guilty not getting the filter but many that lease don’t even change the oil.
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I think it depends on drive cycle. If it's spending the majority of its time on the highway then the turbo isn't really generating any boost so heat generation is reduced. But of course, most people are buying these for commutes, which means on and off boost, so I wouldn't go over 5K with synthetic.
Extended warranty on a used one for sure.
Along with on and off the boost goes that erector set of a linkage making up the vc_t mechanism. All hydraulic and very dependent on clean 0W20 oil.
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Yes, but it runs at high compression when at low loads for increased efficiency. When RPM are in a narrow range like on the highway I don't think it's doing much.
Same idea as VTEC?
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VTEC is valve timing and lift adjustment. VGT is adjusting the vanes in the turbine housing to direct exhaust flow toward the turbine.
VGT video explainer.
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Variable geometry turbos have been around for a while, no?
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Yes, Porsche has used them and I think they've been common on diesels for years. It's just that turbo has become more prolific with gas engines, so manufacturers are now looking for ways to reduce boost threshold. Many already used twin scroll. No moving parts so it's cheaper.
The Navistar DT 530E was using vgt turbos in 2000. Cummins C 8.3 had one in 98 I believe. Early ones were mechanical, they operated by boost pressure pushing on a diaphram and linkage, later models got the ecm controlled stepper motor operated deal. Guess which one was more failure prone and more expensive to replace.
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All I know is I'm currently in a basest of the base Santa Fe loaner (the ugly boxy one) which comes with some 2.5 four pot 270hp turbo and the blasted thing is eating through all my prejudice like a pig through a pumpkin. It's fast, it's torquey, and it goes braaap braaap like my Frogeye WRX used to. I'm absolutely stunned. I gun it all I can, it hauls me around like a rocket and I'm still doing 23mpg+ where the WRX (lighter and faster it is true) was giving me 14-15mpg.
Not sure what turbo it has, and I'm quite sure the whole idyllic adventure will unravel if I load it up with people and luggage (I commute alone to work), but man have things changed in 20 years. This performance with that mpg I'm not used to.
Not sure what turbo it has, and I'm quite sure the whole idyllic adventure will unravel if I load it up with people and luggage (I commute alone to work), but man have things changed in 20 years. This performance with that mpg I'm not used to.
Can't tell you how many naysayers I ran up against when towing our travel trailer with my 'little' Ranger. Same thing with them, always amazed that I trucked down the highway fully loaded with the AC on and wife+dog in the truck with no issues for over 10,000 miles with the camper in-tow. All with a 2.3L I4 just humming.
These little blown 4 bangers are not your grandfathers motors.
If Ford ever brings a Hybrid Ranger here with pro-power onboard I will hop back in one without hesitation I much prefer driving the smaller chassis on a daily basis.
Ranger PHEV exists in Europe and Australia, so could happen in USA one day. It gets the new 2.3 EcoBoost, 10R80 MHT and a battery you can externally charge. It’s way too overpriced in Australia but having driven one it goes well! Aussies prefer the 3.0L V6 diesel though.
Yep, Diesel is in their blood. And I'd heard that Ford was pricing them a bit dearly.
They've already said they won't bring it to the US, but one can hope.
I have to agree. They are pretty common in some cars, but they sometimes do fail at times.
Would it stop me from buying a vehicle that I really liked probably not but if I knew in advance, maybe. I would have concerns keeping the car a long time.
It is a legitimate concern. It’s an electric motor operating in a high heat environment circulating water well over 200°. It also is a complicated apparatus with motor controller, wiring as well as sensors.
If anything goes wrong with any part of the system the vehicle will instantly strand you.
With a water pump that is run off the engine itself as far as a belt or gear driven you typically will get an advanced notice whether a sound if a bearing is going bad or a small dripping leak. But it’s not going to stop dead in its tracks, shut down your vehicle and leave you stranded like an electric.
Some manufacturers who used electric pumps have gone back to belt or gear driven pumps. I've had two vehicles with electric pumps and I had no issues with either one but I didn't run either past 60k miles. That said, all of my current vehicles have belt driven pumps.
The M139 is thermally stressed more than any other engine I can think of, bordering on motorcyle power density. Incredible little mill.
The S54 is pure N/A mechanical madness, with the quirks and faults that can be expected to accompany as much.
This new Stellantis engine shouldn't be in the same conversation as the M139
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