Is driving 85 - 90 MPH damaging to Renesis?
#54
yeah i got to say something to... hehe ...
first of: i dont know too much about engines, except of how they work and the basics...
then i also got to say that everybody saiying it doesnt hurt the rotary probably are right (as far as i know).
though - and here comes my opinion - it doesnt hurt the piston engine too hard (if it does at all) either... just think of germany (im living in switzerland right next to the border) there is so many people here that go around 100 and 130 mph on the autobahn.... in 6th gear in most cars this means probably around 4, 5 k rpm - or am i wrong? - and i have never ever heard anybody (cardealers, friends, family - anybody) who has been complaining about getting their piston engine hurt at those rpms... - maybe doing it for couple of hours straight it would, but normal use on the autobahn i highly doubt it. maybe we have different piston engines in europe than in usa though?!
first of: i dont know too much about engines, except of how they work and the basics...
then i also got to say that everybody saiying it doesnt hurt the rotary probably are right (as far as i know).
though - and here comes my opinion - it doesnt hurt the piston engine too hard (if it does at all) either... just think of germany (im living in switzerland right next to the border) there is so many people here that go around 100 and 130 mph on the autobahn.... in 6th gear in most cars this means probably around 4, 5 k rpm - or am i wrong? - and i have never ever heard anybody (cardealers, friends, family - anybody) who has been complaining about getting their piston engine hurt at those rpms... - maybe doing it for couple of hours straight it would, but normal use on the autobahn i highly doubt it. maybe we have different piston engines in europe than in usa though?!
#57
Originally Posted by andone
...maybe doing it for couple of hours straight it would, but normal use on the autobahn i highly doubt it. maybe we have different piston engines in europe than in usa though?!
I think these days engines are pretty much the same around the world, just slight differences for local emissions regs. And the manufacturers have learned to not be chintzy on cooling systems. That last lesson took a really long time to sink in in the US.
Ken
#59
Originally Posted by Phantom Menace
4.7k a la rotary would be the "equivalent" to 3k a la piston, if there could be made such an "equivalent." One turn of a rotor, 360 degrees, is about (and a very rough about) 1/3 of a "conventional" engine rotation.....
#60
Why are they right drive cars? The test was in Germany. I guess the just used cars from Japan?
-- SNH
-- SNH
Originally Posted by davidh
read this and draw your own conclusions as to wheather it can last at 80-90mph
http://geo.channel4.com/4car/news/ne...20&ref=archive
and
http://www.gcorbett-motors.com/mazda/news3.html
http://geo.channel4.com/4car/news/ne...20&ref=archive
and
http://www.gcorbett-motors.com/mazda/news3.html
#61
I have driven across the Hay plain in central western NSW several times in my old 2003 build rx8. This part of Australia is dead flat. No features at all. You can see a coke can on the side of the road 5 miles away, you can see oncoming cars at the Horizon. This goes on for about 200 miles.
So naturally, to stave off boredom and tiredness, I cruise along at about 120 mph for most of the way. The engine doesn't miss a beat, the car is nice and stable, there is no overheating - and this is during ~ 105 Fahrenheit ambient temperatures.
(of course I need to fill the car with petrol on both sides of the Hay plain ... )
So naturally, to stave off boredom and tiredness, I cruise along at about 120 mph for most of the way. The engine doesn't miss a beat, the car is nice and stable, there is no overheating - and this is during ~ 105 Fahrenheit ambient temperatures.
(of course I need to fill the car with petrol on both sides of the Hay plain ... )
#62
Originally Posted by encorez
No, the poll was to see who premixed. Think before you post.
i don't premix but that isn't b/c i don't think you shouldn't or anyone else (that is for each individual to decide for themself). i just know that a lot of very knowledgeable people (of which i do not put you in that category) still debate its merits as well as potential damage to the engine.
maybe it was my mistake b/c i forgot you cannot stray from your tendancies toward one-liners and are unable to give reasons behind your statements. if you had, however, given a reason as to how it would help with wear and tear it would have been a stronger argument. and as i said before, i am not saying people should not premix but i wanted to make sure that the OP knew that your statement was not something that there is a clear consenus on.
of course if you think that 45% of those on these boards that voted in your poll saying they do premix constitutes a valid conclusion then by all means jump away, mr. lemming, jump away.
#64
Originally Posted by encorez
Just confirming the poll stats.
To hard for you to understand?
To hard for you to understand?
i would love it if you were educated enough to put together more than two sentences to actually debate anything but i am not holding my breath on that one. premix, don't premix, i don't care and i don't have enough evidence one way or the other to say to or not to. i also haven't been shown enough to make me start.
#65
That poll only means that 45% of the people who responded to the poll pre-mix. (And the poll is skewed to attract people who, at the very least, know what premixing is—which, I assure you, is a tiny percentage of all RX-8 owners.) If you could somehow poll all RX-8 owners I'd bet you'd find that if even 5% premix, it's a lot.
#66
Originally Posted by CTrx8
with 45% of the voters saying they do, how is that confirming anything? even if it were 80%, though, you would only be showing what the majority of people are doing - not what is right or wrong. where have you proven anything and had any leg to stand on to ask me if it is too hard for me to understand?
i would love it if you were educated enough to put together more than two sentences to actually debate anything but i am not holding my breath on that one. premix, don't premix, i don't care and i don't have enough evidence one way or the other to say to or not to. i also haven't been shown enough to make me start.
i would love it if you were educated enough to put together more than two sentences to actually debate anything but i am not holding my breath on that one. premix, don't premix, i don't care and i don't have enough evidence one way or the other to say to or not to. i also haven't been shown enough to make me start.
#67
In spain 80-90 mph is the speed most people goes on highways (legal limit is 120 km/h->75 mph, speed cameras are set at 141 kms/h->87 mph).
I guess in the german autobahns is a little higher. My average is usually about 95-100 mph when there is little traffic, sometimes I've kept this speed continuosly for two hours. I've 28000 miles, until the moment 0 engine problems, I don't think this can be an issue with rotaries.
I guess in the german autobahns is a little higher. My average is usually about 95-100 mph when there is little traffic, sometimes I've kept this speed continuosly for two hours. I've 28000 miles, until the moment 0 engine problems, I don't think this can be an issue with rotaries.
Last edited by juanjux; 01-15-2007 at 11:44 AM.
#68
As I understand it from the service guy at my local Mazda dealership the more consistently you run the engine at higher RMPs the better it is for the engine. He dumbed it down and gave me what is I am sure an oversimplified explanation for the 04-06 engine recall issue. Basically, he told me that the people who were driving the engines at very low RMP's such as 2.5k & 3k and shifting at those lower levels were causing issues with their engines. He described the Renesis as a racing engine which is meant to be driven hard. I said, I normally shift about 6k RMP's on average and then spot on at the red line if I am really trying to wind it out and show off a bit. He told me I should have no problems and the diag test confirmed it. He did however scold me slightly for having low oil that day. I generally try to check my oil about once every week or two but I guess I should make it a every week thing if I am going to run it harder than average.
#69
Running a rotary at those speeds will not hurt it at all. RX-8s have won a couple of 24 hour endurance races in europe at high speeds and loads. This has been happening with rotaries for decades. As long as your engine stays cool and you aren't detonating (and you shouldn't be!), it's fine.
Most rotary owners do NOT premix. It's pretty limited to only the fanatics and even most of them don't premix. I don't. I have before but I don't usually.
Most rotary owners do NOT premix. It's pretty limited to only the fanatics and even most of them don't premix. I don't. I have before but I don't usually.
#70
Originally Posted by maisis00
I said, I normally shift about 6k RMP's on average and then spot on at the red line if I am really trying to wind it out and show off a bit.
Is there a Forum section for SFX?
#71
Originally Posted by rotarygod
Running a rotary at those speeds will not hurt it at all. RX-8s have won a couple of 24 hour endurance races in europe at high speeds and loads. This has been happening with rotaries for decades. As long as your engine stays cool and you aren't detonating (and you shouldn't be!), it's fine.
Most rotary owners do NOT premix. It's pretty limited to only the fanatics and even most of them don't premix. I don't. I have before but I don't usually.
Most rotary owners do NOT premix. It's pretty limited to only the fanatics and even most of them don't premix. I don't. I have before but I don't usually.
#72
lol. I guess Rotarygod is a lot like Ike....both know a lot, but Rotarygod doesn't do it just to seemingly put the RX-8 down.
Good to know, everyone. Thanks for all the responses (and damn, did I get a lot of them!)
Good to know, everyone. Thanks for all the responses (and damn, did I get a lot of them!)