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10-05-2013, 02:53 PM | #1 | |
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Why NA? Because it might be a thing of the past..
I've driven turbo charged and supercharged vehicles but my deepest appreciation has been for naturally aspirated powerplants.
My options may be limited in the coming years... I suppose just like the inevitable death of 3 pedals, we might also have to accept the death of naturally aspirated engines. This is the USA, however so this reality isn't knocking at our door but who knows. http://www.thetruthaboutcars.com/201...irated-engine/ Quote:
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10-05-2013, 05:02 PM | #2 |
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3 reasons why I don't feel guilty about buying the FRS (in the long run as opposed to something faster or more practical), I think it's one of the first cars of the last generation of true sports cars (people have been saying this for decades though, from fuel injection to alloy wheels to emission controls to power steering).
1. It's not over-computerized, no "sport" setting, just options of traction control, no big brother, no navigation, no computer second guessing me. 2. NA relatively straightforward engine, nothing revolutionary, should be a workhorse, put your foot down and it screams 3. Manual Transmission, no need for further explanation to other enthusiasts, it's just fun Also of note, I was super worried about electric power steering until I drove this and compared to Miata and Mustang, it can definitely be done right. |
10-05-2013, 05:08 PM | #3 |
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Slightly off topic: My BMW's electric steering feels good too, but when it failed the replacement rack cost over two-grand. Let's hope these cars do not have such issues. Why is everyone going to e-steering anyway? Is it to save weight, save cost, have better control over the car's "feel?"
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10-05-2013, 06:37 PM | #4 | |
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As far as the "death" of NA goes, Toyota and Honda have still not jumped on the FI bandwagon yet, when they do I think that's the signal that NA engines will soon be extinct. I think by 2016 every car will roll out with at least a mild hybrid system and direct injection, by 2020 every car will have multiple cam profiles or some other valvetrain trickery, and by 2025 every car will have significant electric assist and downsized engines. I think it's worth noting that the EPA 54.5 mpg goal is essentially that every car has to be as good as a current Prius while cruising on the highway, and do pretty well in stop and go. You can get pretty close to the highway goal by adding more gears to transmissions and mild electric assist, depending on how bad the aerodynamics are. Toyota left some efficiency on the table by not direct injecting its current engine crop. I think it was mentioned that the 918 Spyder is good for 45mpg in hybrid mode: this is with a 4.6L V8 that likely has a massive amount of friction reduction enhancements in it that you don't see on typical cars. It's clear that engines >4L are not going to exist in 10 years no matter the application. |
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10-05-2013, 06:46 PM | #5 | |
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10-05-2013, 06:48 PM | #6 | |
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Also the manual transmission might not die if manufacturers start specifying shift schedules like Ford did with the Mustang ? The 86's 22mpg city for example can easily be bumped up to 25 if they specify shifts at 2400rpm. Last edited by serialk11r; 10-05-2013 at 07:07 PM. |
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10-05-2013, 08:44 PM | #7 |
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CAFE standards will force us to have smaller displacement engines (most likely with FI for "sporty cars"). Or more expensive hybrid type cars that use electric motors for extra boost.
The problem with turbo engines is that few turbo cars I have driven had linear throttle response and I love that about NA. The FR-S and BRZ go against the grain of most modern day RWD sports cars. Try are smaller, lighter, NA, and focused around being a drivers car, not a horsepower monster. And they are inexpensive for what you get. |
10-05-2013, 10:28 PM | #8 | |
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10-06-2013, 10:01 AM | #9 |
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First the industry is being forced into Direct Injection due to upcoming emission and efficiency regs.
If you haven't noticed an NA DI engine have "issues." The addition of a turbo gives a wider window to meet durability, performance, economy, and emission targets. So the entire industry is slowly moving to DIT for new 4 cylinder designs. Even a $15 Chevy Sonic can be bought with a DIT 4 cylinder. Even Honda is working on their first turbo 4 cylinder. Personally I and most reviewers think Toyota dropped the ball by not allowing Subaru to use the FA20DIT in the twins.
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10-06-2013, 01:46 PM | #10 |
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I place a higher premium on NA. Just appreciate it more.
It's easier to from OEM NA -> Turbo. Less easy to go from OEM Turbo ->NA.
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10-07-2013, 02:20 AM | #11 | |
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Remove the turbo. I think that's pretty easy right? :P Adding the power back is a different story. |
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10-07-2013, 10:46 AM | #12 | |
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Now if you rebuilt the motor with different cams, heads, high CP pistons etc, it may be driveable. We tried something similar on a dsm and needless to say, we couldn't even get it to idle correctly because the vaccuum pressure fell way off. |
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10-07-2013, 11:50 AM | #13 |
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I find it funny how you guys are saying that companies are "forced" into new technologies like DI and electric steering. They are being applied because they're better than old technologies. Everyone pretty much agrees now that fuel injection is better than carbs but I'm sure if we had forums back during the transition you'd find people bitching about how they can't adjust their A/F ratios and up their idle during the winter or whatever.
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10-07-2013, 12:12 PM | #14 | |
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It's too bad that the trend is for small displacement engines with turbos as opposed to superchargers. Clearly people who like FI, like both options for a wide variety of reasons.
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