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#424708 - 07/27/08 07:12 AM
Re: Prius vs Civic Hybrid
[Re: seadog]
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Admiral
Registered: 01/19/03
Posts: 2257
Loc: Indianapolis
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Don't know what engine the Camry Hybrid has - I think it's a 2.0 4 cylinder. What I do know is that it is a very efficient engine. The first thing you notice about it is the exhaust pipe is about 3 inches in diameter - compared to about an inch and a half on a normal Camry. I think the Camry Hybrid weighs about 200 lbs more than the standard - but it is loaded with options.
I've driven both the Prius and the Camry Hybrid. The powertrain of the two doesn't "feel" a whole lot different.
The Hybrid drive is pretty well transparent, once you get used to the engine starting up and stopping - which adds some odd vibrations to the experience. Personally, I don't care for the CVT transmission - but I think that's just because I'm used to feeling gear changes. The brakes on the Hybrids are a little abrupt compared to a normal vehicle - they use both the brakes and the generator to slow the vehicle.
The differences between the Camry and the Prius come down to the following - Comfort, Size, Controls, and Mileage. The Camry is larger rides and handles better and has more conventional controls - it also has more luxury equipment and costs a bit mroe. The Prius is smaller, noisier (small higher pressure tires), has bad driver vision in spots (really weird sight lines), rides rougher, is noisier and has really funky controls - for example the shifter is a little joystick thing. But the Prius does get better mileage than the Camry.
A note on gas mileage - the real advantage the Toyota Hybrids have is in City mileage - My wifes car gets 38-39 mpg in city driving. It gets about 40 on the highway. In the city is where the electric motor drive, the regenerative braking and the smaller gas engine really shine.
No doubt the Honda Hybrid is smoother - that's because it uses the electric motor only in conjuction with the gas engine - so the gas engine isn't shutting off and turning on while driving.
Personally I think the best Hybrid design for our nation was the First GM truck Hybrid that nobody bought. It didn't have an electric motor or a battery - which made the cost of the system low. It did have stoplight shutoff and regen brakes. But everybody laughed because it only got 10-15% more economy - (however city economy was better than that and most construction/utility trucks are driven locally) - and think about it, "only 10-15% better economy" on the most common vehicle in the Unites States would have been fantastic.
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#424730 - 07/27/08 09:28 AM
Re: Prius vs Civic Hybrid
[Re: Indyboater]
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Admiral
Registered: 06/25/05
Posts: 7488
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The Camry Hybrid uses the same 158/160hp 2.4L engine the other Camry's use, infact it's basically the same engine in my dad's 05 Camry. And, not to argue with you because you DO work in the automotive field, it's NOT exactly a super efficient engine. It uses pretty heavy pistons and doesn't have the efficiency control software/hardware that the newer Toyota engines do. It's not nearly as "efficient" as the 3.5L V6 or 5.7L V8 is. With that said, in the grand scheme of things, it IS a relatively efficient engines compared to many engines offered with comparable power from other manufactures....and it's a 6.5 year old design (debuted in 02). The 2.4L's are sensitive to the oil ran in them. Run Mobile 1 5-30 and you will reduce some of the interal friction and increase the overall mileage (we picked up 1.5mpg switching our 2005 over).
Second thing is your numbers are far, far, far above EPA estimates. That can be a good thing. EPA suggest 33/34 city/highway. Have you checked the computer fuel mileage with the old fashion hand calculation?
Many 2.4L Toyota engines have inaccurate computer fuel milage readings. It's a problem we have with our 2005 and that my grandma had with her late model Camry. Our's will ready about 38/39mpg on the highway when it's really only getting about 32/33. It's about 6mpg off on the highway, about 4mpg off in city driving.
I'm not necessarily implying that your car is not getting the mileage posted. It is entirely possible. However, I did want to note the Toyota fuel mileage issue which is a major PITA and a huge disappointment. We're still working to resolve our issue but no one really seems to know HOW to fix it.
Secondly, the touchy brakes thing you mentioned is what drives me friggen nuts with the Toyota Synergy system. It's a bit obnoxious. The Honda system does use regen breaking. It's VERY smooth and LINEAR compared to the Toyota system. The Honda also shuts down after you get below 10mph and are coming to a stop. It says off until you push on the gas to take off.
Just more ramblings.
_________________________
Live your life in the Kelvin scale..........Stay Positive.
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