20B - End of the Line?
06-03-11, 10:57 PM
#51
Ah, I completely forgot about the 3 plug supposedly provides a 2% increase in fuel economy and torque. I'd be very surprised if they didn't include this in the new 16x since it seems they are trying to get it as optimal as possible in all regards.
thewird
thewird
06-04-11, 12:00 PM
#55
I won't let go
But here's another thing that you need to consider. A manufacturer needs to meet a certain level as an AVERAGE across a particular class of cars in their line. The standard is
The combined fleet fuel economy for an auto manufacturer of cars and trucks with a GVWR of 10,000 lbs or less will have to average 35.5mpg. The average for its cars will have to be 42 mpg, and for its trucks will be 26 mpg by 2016, all based upon CAFE Standards.
06-04-11, 07:47 PM
#56
It's only about being green and the pressure from every government in the world to have car companies reduce emissions and consumption. The turbo 8 is cutting CO2 by 25% over the V10. The current V10 (in the M5) is listed at 12/18. The turbo 8 as in the 750i is listed at 15/22, in a car that weighs 500 pounds more. You going to tell me that it's solely based on production costs? No way. If BMW had their way, they'd keep NA motors, in particular in their M cars. That's what the company wants and I assure you that's what their owners want.
Thx for the clarificaion. Given your location, I'm pretty sure you know what's going on over their!
But here's another thing that you need to consider. A manufacturer needs to meet a certain level as an AVERAGE across a particular class of cars in their line.
Right which is exactly why I said since Mazda is setting the green example with the sky engines and IF the 16x shows similar characteristics, maybe they can make a Mazdaspeed 3 rotor for fun. Those Sky engines are gonna be in practically everything Mazda builds over the next few years. So they should have more than enough green vehicles in the line-up.
06-05-11, 11:48 AM
#57
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i would have to assume there is other underling reasons as to why the USDM never saw the 3 rotor, we have plenty of V12's, 10's and 8's that get **** poor fuel mileage for me to believe that that was the reason that mazda never imported it.
but i think that it will never materialize from here out anyways, with all the car companies focusing even more on green cars and fuel mileage being major selling points. why would mazda try to go against the grain when they already are walking a very fine line.
but i think that it will never materialize from here out anyways, with all the car companies focusing even more on green cars and fuel mileage being major selling points. why would mazda try to go against the grain when they already are walking a very fine line.
they apparently did have some JC cosmos built to US emissions standards, so they did think about it, before the economy took a nose dive.
06-05-11, 09:16 PM
#58
There is certainly no packaging issue, since 3 rotors using 12a housings are only a few inches longer than the 13b and even the 20b longblock is very small compared to most piston engines.
Somebody said US crate motors are expensive. Huh? An LS7 crate motor is $13,000. Not cheap, but about the cheapest you could build a 3 rotor NA for.
RxSpecialties makes a lot of the parts and out of aluminum. My motor uses their rotors, center plate and e-shaft and seals. I think only my housings are stock.
I think a 3 plug a la 26b direct injection all aluminum 3 rotor would be an outstanding motor and doubt it would be that expensive as a crate motor.
Gordon
Somebody said US crate motors are expensive. Huh? An LS7 crate motor is $13,000. Not cheap, but about the cheapest you could build a 3 rotor NA for.
RxSpecialties makes a lot of the parts and out of aluminum. My motor uses their rotors, center plate and e-shaft and seals. I think only my housings are stock.
I think a 3 plug a la 26b direct injection all aluminum 3 rotor would be an outstanding motor and doubt it would be that expensive as a crate motor.
Gordon
RxSpecialties do not make or produce the center plates the aluminum side housings or e shafts etc...
ExtremeRotaries makes them, next time around you want save some money get them direct.
Its sad that he actually claims that he makes them...
06-23-11, 07:22 PM
#60
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Thx! Hmm didn't know that about the 4 banger. But still the 5 series does have more than 4 different engine configurations for the 5 series. 4 cyl, I6 cyl, v8, and diesel. This is a very diverse selection of engines you have for the customer to choose from. USA rotary enthusiast have only gotten 13b based displacement versions for the past 27 yrs. When I see other manufactures building there vehicles like this, it really pisses me off that all we get is a single displacement rotary. I mean the little 13b has to complete with everything in the performance market. Yet when it breaks it labels the rotary as unreliable. That would not be the case if we had 3 and 4 rotors to compete with it's equal displacement competition.
i noticed most of the BMW's have the badge delete, so you can't tell if its an M5 or a 520i... pics to follow!
06-24-11, 12:22 PM
#61
I won't let go
06-25-11, 06:48 PM
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pics! since you guys are so smart, you can tell me what they are 
well first one i think is a 96-99 bmw, amber rear lights, and grandma spec trim. i did see a 520i too, but people were looking at me like i was crazy for taking pics of cars
well first one i think is a 96-99 bmw, amber rear lights, and grandma spec trim. i did see a 520i too, but people were looking at me like i was crazy for taking pics of cars
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