What Can They Say?
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From: Shreveport, LA
What Can They Say?
We as rotorheads know the pros and cons. of the Wankel engine. And we also know that there are more pros than cons. For those people who bashed the rotary engine calling it messy, leaky, nasty, a gas guzzler, oil hungry, and after 6 years couldn't pass an emissions test, what do we as rotary feinds say to them. Do you think Mazda has addressed all of these concerns with the renesis? Can the renesis be called any of those names that the old rotaries were called? Is the renesis as clean as any other engine out there? I think so. I think Mazda has solved all of the aforementioned problems that plagued the previous rotaries. When you think of it, they had to. If they didn't address those shorecomings then they would still be in the same boat. I think the renesis is the best rotary ever, and that it probably can't be improved upon at this point (power increase aside), but then again, I've been wrong before.
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Joined: Feb 2003
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From: Miami, FL
A few months ago I let my friend drive my FD and I was behind him in his Yamaha R6. I almost passed out due to the fumes coming from my car. Good lord that was some nasty stuff. It does have a downpipe, midpipe and n1 catback. Every weekend I have to break out the polish to remove the soot it leaves on the rear bumper. Regardless, I love the car. I hope the Mazda engineers addressed these problems but if they haven't who cares! Your still going to be driving a rotary while everybody else is pushing pistons.
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From: Phoenix, AZ
Slashdot had an article about techno-cool cars. One of the comments wondered why the RX-8 wasn't included. Here is one of the replies:
You can find the thread in question here and the original article here.
The reason is that a Wankel has a large surface area in the combustion chamber, in proportion to its volume, so a lto of heat is drageed out through the walls, instead of being ud\sed to push the rotor round. The realatively cool chmaber walls also cause emissions problems because the fuel does not burn as efficiently when cold, so HC emissions in particular increase. Unburnt fuel=lost energy as well of course.
mostly harmless
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From: Greater Vancouver Area, BC
that may be true, that the wankel's thermal efficiency is lower that that of a pistion engine, although it raises significantly as rpm's increase (something which i've never had explained to me, but assured that it was true)...
despite that, the only thing people can say about the RENESIS is that it's "gutless"... it's got more power, more torque (across the whole curve), more specific power, smaller, lighter, simpler, at least competitive in the emissions department, and maybe even better on gas than Honda's hallowed F20C (the 2.0L in the front of the S2000)... tell me what bad things you can say about an engine like that, seriously.
despite that, the only thing people can say about the RENESIS is that it's "gutless"... it's got more power, more torque (across the whole curve), more specific power, smaller, lighter, simpler, at least competitive in the emissions department, and maybe even better on gas than Honda's hallowed F20C (the 2.0L in the front of the S2000)... tell me what bad things you can say about an engine like that, seriously.