Naturally aspirated...

I go through phases of reading car reviews and watching YouTube videos. Although I bought a new car earlier this year, I'm already looking to see what my next car will be in a few years from now.
I'm happy with the size and performance of my Mazda M3 as it's got a 2.5 liter engine. The three previous cars were 2.0, 1.6 and 1.2 dating back 20 years, so this Mazda is a poor man's performance vehicle!
I was explaining to a friend, it's actually changed my personality as I can now pass a car on a 2-lane road and not worry about lag in acceleration.

Listening to a few YouTube videos about my model, some reviews were about the turbo engine that's available on the more expensive cars. I test drove a turbo on a Hyundai and didn't like the delay driving in the city. The salesman stated it 'kicks in' nicely at highway speeds. Thanks, but not interested was my response.

While listening to videos, many were talking about naturally aspirated models. WTF is that I said... I've been driving cars around 55 years and had to look up naturally aspirated.
Oh, I get it. A naturally aspirated engine is one that's non-turbo. Well duh! I suppose all engines were naturally... naturally aspirated prior to the invention of superchargers and turbo power boosters.

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Comments (15)

Unless you do a good bit of highway driving a turbo is of little value-especially at city driving. Constantly stopping & starting.
Mazda has a nice looking line of vehicles these days. When I'm in the market for a new one, I'm leaning toward a Mazda
Having under-powered cars all my life, a turbo would only get me in trouble!
laugh
When I lived in Miami, work was 40 miles away and sometimes I drove around checking on projects. Much of that was highway. Over 35,000 miles per year.
I'm missing the Toyota Corolla Hatchback as it was getting 40+ mpg if I traveled under the speed limit. The Mazda3 AWD doesn't come close.


I chose Mazda for a few reasons... I see lots of older models on the road, so they are good on longevity. The dealer gave me a fair trade and didn't jack-up the sticker price. The Subaru was considered but the dealer didn't have inventory. Toyota would have been my first choice but they were in-between styles. The RAV4 was too big. The Prius had a long waiting list with $5,000 over sticker. The Corolla Cross was a small SUV and I wanted to stay in a car and not an SUV.
I'm still driving my old, rusty 2009 Toyota Matrix. It is getting to the point where it's costing quite a bit in repairs to keep it on the road. But the cost of new and even used cars, makes me want to try to squeeze as many more miles out of the 215,600 miles it already has on it. It is a fun little car to drive...my lazy ol butt is getting tired of driving a stick in rush-hour traffic though.
The Corolla hatchback is built on the frame of a Matrix.

My brother is driving a 23 year old Avalon with 230,000 miles.
He's got a Ford Ranger that's about the same vintage... built by Mazda.

I had a Celica for 13 years and beat that thing every time I got on the highway.
Somewhere around 220,000 miles. It needed a quart of oil every few weeks.
thumbs up
I haven’t drove a stick shift in so long..not sure if I could now...

I am waiting for a food interest free or very low interest deal...then I will get either a Mazda or a Toyota...

Either a CX-r or a RAV 4...

I have many road trips planned for next year...with my family.
good ***

I should have proofread
Turbo is also good for higher elevation, like in the mountains.

NA engines lose power due to low atmospheric pressure, turbo chargers and superchargers offset that loss.


I drove my early 2000's NA Range Rover from California to Michigan and back a couple years ago. When 300 bhp dropped to 240 bhp in a 5,500 lb suv going up a mountain I started wishing I had the supercharged version.

A quick google search claims NA engines lose 3% of their power per 1,000 feet of elevation.
What's the difference between a turbo nerd and a super nerd, eh?

Got anything to say for yourself, Ocee? giggle
I've enjoyed my 2025 Mazda Bravo 2.5 TD 4x4 since 2006 and its still going OK

Friend purchased a Toyota Hilux since he purchased it class action case against Toyota Australia alleged the diesel particulate filter fitted to the 2.8-litre turbo-diesel four-cylinder HiLux, Prado and Fortuner is defective. A diesel particulate filter (DPF) is fitted between the engine and exhaust to collect soot and dangerous particles from diesel vehicles so the lawyers can make money or something. The vehicle is a big pain.

So mee mate has been thinking about replacing the Hilux with something.
Couple days ago I received Unsealed 4x4 newsletter < > I'm impressed and so was mee mate.
Further research explains the Mahindra Scorpio has a 2.2-litre four-cylinder turbo-diesel engine, which produces 129kW at 3500rpm and 400Nm at 1750-2750rpm. It has a six-speed automatic transmission, an auto-locking rear diff, and a part-time 4WD system with a dual-range transfer case incorporating low range
Gear box is made by Aisin Seiki in Japan and Aisin is partly owned by Toyota and it is fitted with a Borg Warner Transfer Case/Box depending whether you able to speak English or just American.
I personally dislike American made vehicle designs, once owned a Ford Galaxie in good old US of A The Galaxie was quite wide ran Ok but come on man the Indians build better vehicles today by long country mile.

The 2.2-litre mHawk engine, has the next level of common-rail diesel tech. It was the first dual overhead cam engine. The life of this engine is among the best today and it can run for 500,000km without any problems
I had a visit from my cousin the other day he is over for a week from Aussie, and he had a rental car that was a hybrid Toyota Yaris Cross;; it had some serious ground clearance for a hatchback, and my cousin said it could hammer on the open roads (he said he was getting the slow down statements from his sister the whole trip up north) laugh

Beautiful mid sized car the Toyota Yaris Cross, I'd like to try a manual trans, normally aspirated 4WD model..
The Turbo models sound like extra expense and trouble..
In the US, the Toyota Yaris is their smallest model.

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The larger Corolla Cross is an SUV, new this year and replaces the C-HR.

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The C-HR was a nicer looking vehicle:

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That Toyota Corolla cross SUV looks like a pregnant roller skate Chat, that SUV on the bottom is a pretty piece of machinery and would look better covered in mud..
Super nerds come on early, turbo nerds come on late.




Turbo chargers use exhaust pressure to spin up a turbine that drive fresh air into the intake.

Super chargers are belt driven like your alternator, and air conditioner.


Chat, unlike the turbo charger the super charger power comes on much lower in the rpm range and would provide power more like you were hoping to find in the turbo model you test drove.
I used to drive an Australian made V8, 5+ litres, until my then wife saw fit to drive it up the rear end of a line waiting at traffic lights (it wasn't the only car she wrote off). How I miss the burble of that lovely engine, driving mere cars is so ho-hum.
laugh

I asked for that. laugh
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