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#85 |
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#86 |
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#87 |
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#88 | |
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#89 |
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#90 | |
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#91 | |
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Delights in pure handling
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Some will argue that the fuel economy it is due to the high compression. However Mazda has even higher compression in their new Skyactiv engines (13:1 vs BRZ 12.5:1). Others will say it is good for a sport engine (however the 2ZZ-GE was getting these numbers in the late 90s early 00s). With a low weight, low cd, small 2L NA engine you would expect higher mpgs. |
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#92 |
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There's not much to wonder, as has been said by countless people countless times, EPA testing can be very unrepresentative of real world conditions.
High compression is good for fuel economy. Sport engines don't actually lose very much efficiency either, the F20C for example has peak efficiency of 242g/kWh fuel consumption, which is quite good. The 2GR-FSE is something in the high 220s, I'd expect the FA20 to behave something like the 2GR as far as BSFC vs. BMEP/rpm goes. Manual transmissions get butt raped by EPA testing without goofy 1-4 forced shifts like GM has. As Allch Chcar said, MPG is about driver control, ecomodders/hypermilers all use manual transmission despite the often shorter gears. Last edited by serialk11r; 03-27-2012 at 08:50 PM. |
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#93 | |
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Probably not, if they did the WRX would be walking the BRZ. The BRZ is just as much an "econobox" as a WRX though. Both cutting corners here and there while trying to focus it's budget cap in certain areas and remaining as cheap as possible. |
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#94 |
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JohnnyR, they can shorten gears to get the acceleration back. Currently the FA20 makes 60% torque right above idle, and it climbs to 90% peak by 2700ish. If they let it rev to say 8500 and make max power at 8000rpm, it'll perhaps lose a bit of torque, but it gains 15% more revs to use so they can shorten final drive say 10% (and hopefully add a 7th gear or make 6th longer on the manual...) and deliver a net improvement in acceleration.
At 8000 it should be pumping close to S2000 levels of power, which I'd hope is adequate... |
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#95 | |||
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Delights in pure handling
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Isn't that what I said? Quote:
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That is only true to a certain degree. A car with crappy fuel economy, no matter how gentle you are still won't put out impressive numbers. It isn't a single factor that is involved. There are multiple factors of which driver is one, as well as the vehicle (engine design). |
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#96 |
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And you know this how? I'd buy that if there weren't thousands of pre-orders in Japan and people on this board were saying "f-it, I'm buying a Mustang/GC". If they were in trouble getting pre-orders for N/A version they'd be very tight-lipped about FI version in the future in fear of jeopardizing N/A sales even further. So, I think you're making stuff up.
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#97 | |
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Senior Member
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My point in bringing up this all the time is that manual transmission is much more driver sensitive, and EPA test is a very non-fuel-economy-conscious way to be driving a manual transmission. I'd bet money that in the real world, people will typically get something like 28-32 mpg average, unless they're getting too excited and speeding everywhere
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#98 | |
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Delights in pure handling
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+1. I agree with you. I don't think the manual numbers are "bad". Just wish the numbers were a little closer to the AT numbers. But I am betting the MT numbers will be better than they are claimed in real world driving (after the car is broken in). |
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