quote:
do a search, beat to death in the past
-Starbreaker666
Actually I'm not sure the rotary ever left production or at least not for very long - they were still building Rx7s and rotary engines well after they stopped importing them.
quote:
The RX-8 is NOT a replacement for the RX-7...
- Chris A
Ding! EXCELLENT post Chris. I never understand why folks insist upon immediately comparing it to an Rx7. Makes about as much sense as comparing an Rx7 to an Rx4. Or comparing a Corvette to a Pickup or an impala back in the 70s.
quote:
One thing I have heard of people having success with when using Mazda rotaries in aviation applications, is to use synthetic in the crankcase and use a oil tank with 2 stroke oil in it to inject into the combustion chamber for purposes of lubricating the apex seals. It's a simple matter of routing some hoses to an external tank.
- Brons2
Actually it is common enough in roadgoing rotaries. You simply disconnect the oil injection tubes and block them. Then you add 2 cycle to the gas tank in an appropriate ratio. Then you can use synthetic whatever wherever. Personally I think it's a PITA to deal w/ at every fillup.
As I always understood it, the issue with synthetic is the very nature of it's resistance to burning off completely and fully in the intake mixture. With respect to rotaries, it's a little difficult for a synthetic to have it's cake and eat it too. But I do know folks that have run synthetics in rotaries so go figure...? Still, Mazdas concern over synthetics is a compelling one.
quote:
Fords influence on Mazda is noted. 5w20 is now used. Ford Motorcraft is labelled--synthetic blend. How can Mazda say that synth is bad when, I'm assuming that, they are using a blended synth 5w20
- unDUMMY
On what do you base these assumptions that (a) Ford influenced Mazda engineers to recommend 5W20 and they didn't come to it on their own and (b) the factory fill is Motorcraft semi-synthetic.
===
In reading thru this thread, I'm reminded of two things.
I have specifically read in several publications that the automatic engine is rev limited due to "RPM" limitations of the automatic. Not power limitations. What more can be said.
Ford itself is one notable company that got caught w/ inflated HP figures in a HiPo version of the Mustang a few years back. You'd think the Mustang experiment would have taught prudence on the part of HP claims.
[ September 18, 2003, 01:32 PM: Message edited by: pgtr ]