I had a friend of mine who had a ported 12A in a Lotus Europa. You talk about a small car. The car weighed maybe 1500 pounds, with him sitting in the car. It would flat out fly. Before I moved he was building another car, a Lotus Super 7 with a 13 Turbo. I haven't talked to him since I moved, but I can imagine have that car would have been once completed. :eek: Definately would have been fun.

whoa this topic is symbolically linked somehow.

Whoops, blame the admin, sorry guys I accidentally deleted this topic messing around, you can flog me... :madgo:

Man I totally jacked this topic, sorry guys I shouldn't have screwed with it, my bad.

hmm...that sux



but its all gravy...**** happens.



whoever posted about building the engine and running it for 3 minutes..REPOST!!! https://www.nopistons.com/forums/pub...#>/biggrin.png

Wow, I am batting 1000 today, really sorry about this guys, I was trying to move this and I deleted it and was realized it at the last second... long story short I screwed up... my bad.

No problem about the post-killin'.....I try to never bag-on anybody pulling support roles.

I think we all know you are trying!

Anyhew.....here we go again......

I need a superlightweight starter, flywheel, and alternator for a 12B radical project that

I can't discuss(although I'm dyin' to talk about it!) AND, the lil' bugger needs an

intake/exhaust system that'll let it run @ 5000RPM for 3 minutes on synthetic oil

and 16ounces of oil-blended fuel(possibly 10%nitromethane RC fuel?!)

without the benefits of H2O cooling........hey, what do ya expect.......

rotorheads are envelope-pushers, man!!!!! Thanks!

thanks guys, I swear I will just push the post topic button next time!!! I was reading and it was a great topic.... so I thought I would reply, but I didn't... oh well.



Thanks again for being sports!!!

Quote from KitaruSapien, posted on Nov. 14 2001,19:41

Ok, I stoked the fire in the old brain and these are a few ideas going by the limited requirements listed.



1) Try to save weight by using a generator / starter to both start and produce 12Vdc (I don’t know what your current

draw will be?) You can find examples on lawn tractors (my friend John Deer he restored has a huge starter/generator unit on it) The only problem is that the generator will not run to high RPM, so your gear selection will be critical.



2) I’m not sure about this one, but you may be able to use a Flex-plate from an automatic trans instead of the std

flywheel. I think you need to use the correct automatic counterweights on the motor.



3) Intake/exhaust – I would think you could use the stock carb with no problem to 5000 with light loading. For the

exhaust, I’ve heard that the Pacesetter headers are made out of cheap thin gauge tubes – just right to keep the weight down!



4) Definitely use synthetic oil for its high heat properties. R/C fuel is mostly alcohol with castor oil and nitro added

(up to about %60 for racing https://www.nopistons.com/forums/pub...IR ). My knowledge of alcohol burning engines is that they usually need about twice the volume of fuel as compared to gasoline. This sounds like it could be a problem with your limited fuel supply of 16oz. The plus is that they run cooler on alcohol.





5) Here is a wacky idea https://www.nopistons.com/forums/pub...>/rolleyes.gif Since you will have not H2O for cooling, you will need to use air cooling to the max!

Are you required to use a 12Vdc starter? OK, here is my idea, use an air starter (like they do on the big rigs) that can be switched into a comperssor once running. Run the exhaust from the compressor through the water jacket area for increased air flow to help cooling. The air could also run a turbine alternator/generator.

Oh, and use the largest oil cooler you can find, or better yet use 2 of them.

wheres the rest. oh man. ohh well.



I was planning on putting a 13B in my Karmann Ghia. Was contemplating boosting it up, too.

But the idea died out after a day at the track. I want to race against 4 bangers, not rotaries.

But, i havent decided yet. The plans are still up in the air. Ill decide once i finish up my beetle.

Well, when I originally started this thread, this is what I had in mind...

Thanks oodles! So now let me clarify......



Try to save weight by using a generator / starter to both start and produce 12Vdc (I don’t know what your current draw will be?)

A: I have no gear system, so the RPM's are the only key(5000RPM constant); draw will be the engine and two .25HP electric motors with a small motorcycle battery. How small a starter will turn over a 12A? I may have to re-start in the middle of the run.



I’m not sure about this one, but you may be able to use a Flex-plate from an automatic trans

A: Who carries them?



Intake/exhaust – I would think you could use the stock carb with no problem to 5000 with light loading.

A: I don't need tiny injectors for such a limited fuel supply? And instead of 10%nitromethane what about octane-boosted standard fuel? The base powerband is plenty, I just need those RPM's for three minutes on a strict 16oz fuel supply!



For the exhaust, Pacesetter headers are made out of cheap thin gauge tubes

A: Roger that.....are they under 110db? Probably not, huh?



Definitely use synthetic oil for its high heat properties.

A: 5W50? I can get synthetic military turbine lubricant if that'll work....either way, it'll get totally replaced after each run. Are ceramic seals necessary for such a short series of runs???



Since you will have not H2O for cooling, you will need to use air cooling to the max!

A: I'm going to put aluminum finning all over the outside of the casing....or is that a waste of time?



air starter (like they do on the big rigs) that can be switched into a comperssor once running. Run the exhaust from the compressor through the water jacket area for increased air flow to help cooling. The air could also run a turbine alternator/generator.

A: Do you know where I could see the stats on such a unit for weights/measures?



use the largest oil cooler you can find, or better yet use 2 of them.

A: Is an oil-cooler going to even begin working in only three minutes?????



Q: Finally, how hot does a 12A get in three minutes@5000RPM with no H2O cooling......anybody??????



Thanks again for the good scoop!!!!!!!! I'm gonna put your ID on the project just for your input!

dunno all the answers, but about the the Starter...you might be able to use a motorcycle starter, rotaries dont have nasty compression.



The aluminum fins MIGHT help, but i truely dont know if its worth it, unless you have a big fan pushing a shitload of air.



Check out that air starter..sounds like a good idea if they arent HUGE.



Oil Cooler will Defintetely help, especially without H2o cooling, the engine will start to use it rather quickly, almost sure before 3minutes. And im sure every little bit helps.



How hot? if something goes wrong, the temps will SHOOT up! dunno on your set up though.



Good luck

hey Kitaru, if you are still around..wuts up with the whole project??

Hi all, some pretty radical cars and ideas there. I just can't seem to leave any of mazda's alone!! I got a 1987 B2200 with the old R2 diesel in the engine bay. Great fuel economy, but when you also have a modified series 1 Rx7 and series 2&3 Rx2's , it a bit of let down I can tell you!!! So a 13b turbo is accidently gunna fall in and in my neck of the woods(Queensland Australia), the 'powers that be' have no problem with approving the conversion because of the full chassis of the ute. Do they do those sort of conversions the the US??

https://www.nopistons.com/forums/pub...#>/biggrin.png Hey Treceb, I've been in a bettle with just a 12A in the back and it was VERY exilarating, so your Karmann would be VERY lethal!!! :0

there is some guy that is friends with Vosko i think that slapped a 13bT in one of those trucks...pimp sh1t

Hi all. Hey just finished another wild rotary conversion. 1971 Toyota Corolla coupe. The old 3k toyota motor finally packed it in so in went a 12A with a nice bridgeport. The local authorities even approved the conversion. We haven't tried the quarter yet but it's quite quick. :p Customer liked it and that's the main thing! https://www.nopistons.com/forums/pub...#>/biggrin.png

PIMP ****!!!!!



there are a few of those old toyotas with rotaries down here...they FLY!!!!! https://www.nopistons.com/forums/pub...#>/BURNOUT.gif

If your interested in other cars with rotaries, I posted some new pictures of my rear end mounted TurboII project in the general discussion section.













'78 Kelmark GT

'87 TurboII

Haltech E6K

Tons of other parts!

Hey all, back again. My brother and I have, well over the last couple of years!!, have built him one of those AC Cobra replica kits.What a nightmare!! It's very quick, but he's like me got have something a bit different. they have 4 cyl kits in England so he has been toying with the idea of a 20b in the engine bay!! I'm trying to convince him it should be quite lethal in a fibreglass shell but you these V8 boys!! https://www.nopistons.com/forums/pub...#>/biggrin.png