Well i sent an email to mazda when it first came out and im pretty sure they said it was not a good idea. I will have to see if i can find it and see what they said.

If I remember correctly, I heard there was a situation in Europe where the warrenties offered by major car manufacturers withdrew their warrenty on cars that ran ethanol mixtures because it was causing havoc with the injectors... blah blah blah?



I dunno, maybe someone else would have a better idea of what I am referring to.

I believe that in the future rotary engines will get more popular. The reason being is that the rotary engine is the most ideal combustion engine for a hydrogen setup. Piston engines usually back fire on hydrogen fuel, it is hard to get a good stoich running hydrogen on a piston engine.



http://media.ford.com/mazda/article_displa...rticle_id=17134



The mazda RX-8 dual-fuel H2RE prototype can run on either gas or hydrogen. This is going to be the performance car of the future. I wonder if you can run a turbo with hydrogen, the exhaust will be mainly water vapor, they would need to have stainless steel parts to prevent rusting in the turbo, but it will need to be an alloy with another metal with a higher melting point. Even though hydrogen combustion would yield considerably less btu's, stainless steel unless forged or reinforced would probably melt or warp at best. Another good point about hydrogen like I said earlier is that it burns much cooler which will reduce the heat soak threat that rotary engine encounter with a traditional gasoline setup.



I love rotary powered cars, now all mazda needs to do is design a lighter chassis, the rx-8 is a pig. If the car weight like 25-2600 lbs it would be decent.



It will be interesting, but of course this is just speculation, if the greedy petroleum companies can release their death grip on technology.



My only complaint with hydrogen, is the lack of performance, ethanol unlike hydrogen increases performance while reducing emissions, but it's not as clean as hydrogen. The rx-8 dual fuel only makes 120hp, which really sucks considering the weight of the hydrogen model will be even heavier than the conventional model.



Hydrogen is cool, but for now ethanol is reasonable and much cleaner, and funner.

Mazda actually blamed the 10% ethanol fuel as one of the reasons for the poor fuel economy on my Mazda 6

yeah, I dunno where you get this ethanol performance and mileage increasing crap, but it doesn't help my mileage.. All gas around here is oxygenated with 10% ethanol and it's not fun.

See below

If you read any of my previous posts, I never said it increases mpg, it DECREASES mpg by 2%. It does how ever raise the threshold for more performance.



If you don't beleive me that is fine, but it's pure chemistry, ethanol is much higher octane than regular unleaded fuel. If you have any basic knowledge of chemistry you would see that. If the fuel is oxygenated, hmm, doesn't combustion involve oxygen!?



Petroleum fuel is out dated, and has been so for atl east 50+ years. You can keep running regular fuel, whilst the rest of us enjoy 100+ octane, and you can tell us then that higher octane reduces performance, right?



And about Mazda saying that ethanol is what kils the mpg on the 6, remember that they also said that synthetic is bad for rotaries, right. How many of us run synthetics? When ever something new comes along, it's always ridiculed first, then accepted.

higher octane CAN decrease performance

they would need to have stainless steel parts to prevent rusting in the turbo, but it will need to be an alloy with another metal with a higher melting point. Even though hydrogen combustion would yield considerably less btu's, stainless steel unless forged or reinforced would probably melt or warp at best.





Stainless melts at a higher point than regular carbon steel, and shouldnt distort that much as long as austenitic stainless isnt used, but this is just coming from a book, which will be proved wrong next post.

Anybody see this?



Linky