rx8 20v turbo motor swap

[re japi]

Well, i wouldnt try to get max power. I think that torque and quick response is more important... just my two cents...

Diesel RX would be awesome

[B.Martin]

Is a diesel rotary not physically possible?

[Grant Monkhouse]

Is a diesel rotary not physically possible?

It is completely possible. There is tank that was built with a rotary engine where the rotors were about 2ft tall. And it was designed to run on anything they could find that would burn.

[B.Martin]

I wonder why Mazda hasn\'t produced cheaper to run versions of the rx8, with turo diesel renesis engines. I bet diesel renesis could spool some rather large turbos and just evause it\'s diesel they\'d be more economic, in theory. Maybe the Mazda rotary engine isn\'t compatable with diesel in its current design?

[Grant Monkhouse]

It\'s igniting the diesel which is the problem as high compression is needed and diesel is ignited off the heat inside the engine and not actually a spark/glow plug lik petrol engine. As we know rotaries are hit to start with on petrol. But if the enine was made biggest with more water cooling then it would be good. And I would imagine that a diesel rotary would still rev as high as they do.

I think they would be more efficient as less diesel would be required to push the rotors around as it is a slower longer burn than petrol.

[Will66]

Rolls Royce built a diesel rotary and as Grant said, there was a rotary designed to run on just about anything they could find.  That would be environmentally friendly and cool way of getting about.  

I think current emissions laws would prohibit it though, rotaries aren\'t famed for complete combustion so you\'d get a lot of black smoke out of the back which upsets green people, you\'d need a much higher compression ratio since diesels are generally at least 14:1 and higher.

[B.Martin]

Slowly this Eco freindly bandwagon is destroying the motoring enthusiast.

[Will66]

It is not even that friendly.

[Grant Monkhouse]

Mazda are just releasing the lowest compression ratio diesel yet and that is 14-1.

From what I have learnt recently is that rotaries with petrol don\'t increase HP if the compression ratio is increasing. Something to do with pumping losses and the bowl in the rotor not being big enough.

So maybe a 10-1 rotary diesel would work and give huge torque andHP. And seen as diesel didn\'t detonate the Apex seals would be fine

[jetpilot]

Because they are just talking from their a$$?:2Rolleyes They dont\'t have any credibility

I´m sure you think even REW needs to be ported for huge power?

GT35R has potential and produced over 500 HP on rotary platform.  

If you would try to be at least a bit open minded and readed through that thread

I am very open minded buddy, i wanted to buy one and would still like one, however, what your basically saying is.......

Everyone is wrong, tuners, engine builders, owners who have spent huge sums trying to get decent power! And, we (here and in the usa, oz etc) are missing a trick when it comes to porting etc and these guys are the only people that have been able to do it!

There are lots of people over here running gt35r\'s with no where near 500hp, on ported and standard!

Sorry buddy, its not that easy, however open minded i am :WaveBye

[Will66]

I don\'t think a diesel with 10:1 compression ration would work, I\'m not 100% but I don\'t think it would generate sufficient heat to ignite the mixture through compression

@jetpilot

I think MSP tuning is in its infancy still and people are only just starting to release its potential.

[jetpilot]

I think MSP tuning?

Link please sir!

[Will66]

MSP = Multi-Side Port.  It\'s the engine code for the Renesis.

[jetpilot]

MSP = Multi-Side Port.  It\'s the engine code for the Renesis.

Fair one! Still, i think the basis that we do not need porting to hit 400rwhp is a little optimistic. either renesis engine or 13b

[Will66]

I don\'t know, provided the inlet tract and exhaust isn\'t restricting it then jam enough air and fuel in and it should work.