NA 2 rotor - damn addictive

[Don Pamponi]

Sounds a bit like trying to beat the new japanese 16valve bikes with old Brittish steel.  A lost cause. Just give in & get with the technology boys.  In the end you cant win sticking with NA....

[travellinbob]

Whilst I think that you have a point to some degree Don, I think that I have definately seen quite a few N/A rotors that would give your car a good thrashing.
 cheers, michael.

[Dominic]

Sounds a bit like trying to beat the new japanese 16valve bikes with old Brittish steel.  A lost cause. Just give in & get with the technology boys.  In the end you cant win sticking with NA....

Having never owned a turbo car before, I\'m not really in a fair position to comment but for me, I prefer the challenge of squeezing as much power as possible out of a non turbo car and learning more about the engine itself rather than the bits you bolt onto it. Also prefer the idea of a car that can be fixed by tinkering in the engine bay rather than on a laptop.

All said though, it would be good fun to play around with EFI and Microtech on an old schooler but no way got that kind of coinage right now.

Really like the idea of a Renesis engine in an old school mazda. Easy 200-240bhp and a lot more possible without a turbo. The photo below is from the Yaw Power website and is a Renesis motor being built up for the Speed World Challenge GT Class. No exact dyno results are stated but there is mention of 450hp. Personally i\'d be more than happy with the power from the stock Rx8 motor. The real technology is in the engine.

[travellinbob]

Ooooooh thats a bit lovely!

[rotary emotions]

Sounds a bit like trying to beat the new japanese 16valve bikes with old Brittish steel.  A lost cause. Just give in & get with the technology boys.  In the end you cant win sticking with NA....

Of course you are right. BUT let\'s face it: when it comes down to it, you can\'t beat a 20B with a 13BT either (if both are tuned to the max). And then again, a four rotor has more possibilities again. There\'s always something faster, more powerfull. The big question is how does it feel?
Cars are not about reasonable thinking, they are all about the heart. It has to feel right. Of course a hypermodern renesis makes more power in NA form then a 12A with a Weber. But have you ever listened to one??? It sounds like a bee that\'s buzzing in a bottle. You hardly notice it.
Gone are the smell, the sound, the feel of a carbed NA engine.
The search for power in a tiny rotary engine, on carbs is on holy case, and the the result is less important then the road that leads to it.

[mpk490p]

Having never owned a turbo car before, I\'m not really in a fair position to comment but for me, I prefer the challenge of squeezing as much power as possible out of a non turbo car and learning more about the engine itself rather than the bits you bolt onto it. Also prefer the idea of a car that can be fixed by tinkering in the engine bay rather than on a laptop.

All said though, it would be good fun to play around with EFI and Microtech on an old schooler but no way got that kind of coinage right now.

Really like the idea of a Renesis engine in an old school mazda. Easy 200-240bhp and a lot more possible without a turbo. The photo below is from the Yaw Power website and is a Renesis motor being built up for the Speed World Challenge GT Class. No exact dyno results are stated but there is mention of 450hp. Personally i\'d be more than happy with the power from the stock Rx8 motor. The real technology is in the engine.

Where can i order one!!

i considered the turbo route when replacing the engine in my gen 1, having had turbo cars before i know the benifits (and the problems) so decided on a weber 45 with a ported 13b 4 port, ok it wont do 160mph but (when the carbs fitted!!) will pull off at the light nicley and the sound will be great after all my licence nearly speaks welsh so it great having 300bhp but how much trouble does it get you into!
i know its a personal opion but when the weber is fitted the engine will look clean and simple and should produce 160 - 180bhp? more than enough for a 20 year old car and still plenty of fun

Mark

[rotary emotions]

Actually it might not do 160mph, but it\'ll come damn close to it! As said before: my 12A (stock inside!) with a RB full exhaust system (love that sound) and Mikuni did over 230km/h for sure (speedo was off in the way that it showed less then real speed, not good with speed cameras!!!) . Living close to Germany has advantages

[Dominic]

Cars are not about reasonable thinking, they are all about the heart. It has to feel right. Of course a hypermodern renesis makes more power in NA form then a 12A with a Weber. But have you ever listened to one??? It sounds like a bee that\'s buzzing in a bottle. You hardly notice it.
Gone are the smell, the sound, the feel of a carbed NA engine.

Sure, the Renesis is quiet and refined in the Rx8, but thats got a lot to do with the xhaust and emissions gubbins. The engine block isn\'t all that dissimilar to the 12a and 13b with the exception of the exhaust ports. Mazda have done great things with the inlet manifold to improve flow. Take a Renesis with a 3 into 1 header, single precilencer and rear muffler and I bet it would sound like Pavarotti in the bathroom. :cool

[RotorHeid]

Dom,You means" Flatulence " in the bathroom? :rolleyes:

[oldone]

Anybody can make good horsepower with turbo and N2o,but not everybody can make good horsepower with a normal carby motor.It takes skill and understanding to do the porting to produce the power.I could easily go and get a turbo car and have the horsepower,but its takes great satisfaction to pull the motor,port it and run it....experiment with it.
Maybe thats why Im old school.....like my wife says....if you got a cheque book and a FD you think you are cool.....however if you are old school and make it yourself,YOU are really cool !!! From a high tech woman............

[rotary emotions]

Well, that\'s a very good opinion your wife has!
I see them on the street everyday overhere, these guys who think they run a sportscar just because the spend some big €€€ on something like a VW Golf or Peugeot 206/306. Most of them think The fast and the furious is a realistic movie (sure, did you ever have YOUR floor falling off because of the HP you have???) and never even disassambled  an engine, let alone BUILD one.
I wish I had time and money to build a really nice old school project. Maybe a PP first gen, or an RX-3.
A danish friend of mine even build his own Peripheral Port housings! Now that\'s the spirit!

[RotorHeid]

Oldone,
Well said!!, like myself, i build myself and win few sprint races( came 1st in  class in two days events at RAF lossiemouth and very pleased).
See vido at " pistonhead" webset  "Lossie sprint" 23+24th july 2006 at RAF airfield.
Westfield car entry the pit after finished the run, at  first left side is an white FC( bit poor pict) as it\'s not shown my car running, just stood there. good vido about westfields too. Must see!!.
Cannot vido in this Forum!

[A7NTY]

Well i drove the 12a turbo yesterday and I have to say it has almost nothing in common with the NA. OK the weber badly needs setting up as its flat as fduk on full throttle with the second choke (I havent a clue how to adjust this :cry:) it has huge low down torque, it sounds far more muffled and there is no point revving past 6000rpm. The car looks awesome.

In a lot of ways I prefer the NA, but whatever way you look at it, with the amount of exhaust gas a rotary puts out, they are made for turbocharging!

Im still gonna make sure to get a nice ported weber equipped 12a sooner or later

[oldone]

Went up Sainsbury\'s this morn for some shopping,filled the back up with beer and bits,blasted down a b road with a forking smile on my face....  when I use the wenches car...I cant even put on the radio(cos dont know where the on\\off switch is) and it wont let me race cos of all the contols that drive the car,,I need to drive the car,not let it drive itself...:3Confused  make sense..:Typing

[Don Pamponi]

Well said that man!  Lets face it - there are far easier & cheaper ways of going fast than buying 20 year old rotaries, but is much else out there with such interesting style?