Guest youngmondragon Posted August 8, 2006 Share Posted August 8, 2006 Has any one put in a rotary motor on a 280Z if you have let me know and give me some adviced or any problems you ran in to it. Thanks Quote Link to comment Share on other sites More sharing options...
Gollum Posted August 8, 2006 Share Posted August 8, 2006 One word: Search If there's a swap done, or to be done, this site will have info on it. Just don't expect for it to be spoon fed. http://forums.hybridz.org/search.php?searchid=516552 Auxilary is the man in the know on rotary motors in a Z. Personally I'd say if you're happy with 250 or so HP go with a renesis and keep it NA, it will save you alot of headache of turbo fitment. It would also reduce the already low weight. EDIT: Also, if you wanted good NA hp from a rotay the cosmo 3 rotor motor. If 2 rotors are good, then 3 must be even better. Quote Link to comment Share on other sites More sharing options...
veritech-z Posted August 8, 2006 Share Posted August 8, 2006 The cosmo engine is turbo from the factory, isn't it? Quote Link to comment Share on other sites More sharing options...
Gollum Posted August 8, 2006 Share Posted August 8, 2006 Some are, but some are NA. But they're all JDM, so if smog is an issue you won't be using a cosmo anytime soon at any rate. I think it was the older cosmos that were NA. I'll do some research because I know there were turbo ones, but I don't know the specifics. Quote Link to comment Share on other sites More sharing options...
veritech-z Posted August 8, 2006 Share Posted August 8, 2006 To my knowledge, the old cosmos had a 13b, and before that a 12a just like the corresponding rx-whatevers...I think all the 20b's are twin turbo/4-speed auto cars, but I'm also not 100%... Quote Link to comment Share on other sites More sharing options...
flames_187 Posted August 8, 2006 Share Posted August 8, 2006 wow...did a lil research and found out that the rx7s pretty much weigh the same as datsuns (give or take 100pds) weigh saving must be killer with a rotory in a z assuming that the rotory motor wieghs much less than an l28 Quote Link to comment Share on other sites More sharing options...
Gollum Posted August 8, 2006 Share Posted August 8, 2006 Hmm, i'm not finding any info on NA 20B motors, so you're probly right veritech. The funny thing is that I've seen a NA 20B in person and it seemed to have an OEM intake manifold so I kinda wonder about that car now... Well, so they might not have had an NA 3 rotor in produciton, but there was the 757 3 rotor and the 787 4 rotor race cars that were NA. http://en.wikipedia.org/wiki/Mazda_757 Quote Link to comment Share on other sites More sharing options...
z_cars_rule Posted August 9, 2006 Share Posted August 9, 2006 yes, with the lovely R26B quad rotor motor. they sound amazing. and the 13b i have worked on is definatly ALOT lighter than an L6. Quote Link to comment Share on other sites More sharing options...
Stealth-Z Posted August 9, 2006 Share Posted August 9, 2006 Auxilary's website http://www.rotaryz.com/ Quote Link to comment Share on other sites More sharing options...
veritech-z Posted August 9, 2006 Share Posted August 9, 2006 No reason you couldn't run a factory turbo Intake manifold with no turbo, what did the exhaust manifolds look like? I new a guy that had two of those engines in his garage, kept telling me he was going to have me over to check it out, but I could never get it scheduled. Quote Link to comment Share on other sites More sharing options...
flames_187 Posted August 9, 2006 Share Posted August 9, 2006 prolly wont be as efficient as the non-turbo manifold Quote Link to comment Share on other sites More sharing options...
veritech-z Posted August 9, 2006 Share Posted August 9, 2006 prolly wont be as efficient as the non-turbo manifold The point being that there IS no non-turbo manifold , but a turbo manifold would still work. The only really visible difference would be if it had custom fabricated exhaust manifolds. Quote Link to comment Share on other sites More sharing options...
Gollum Posted August 9, 2006 Share Posted August 9, 2006 Yea, I can't remember what the exhaust looked like. Oh well. But what I still don't get is why nobody's making shafts for 4 rotor conversions. There's obviously people who have done it, I'd imagine there would be quite a market for it if someone would make enough of them. Quote Link to comment Share on other sites More sharing options...
veritech-z Posted August 9, 2006 Share Posted August 9, 2006 I'm sure there would be a market, that would be pretty serious! You'd need a new intake manifold, plus probably those longer bolts that hold the whole engine together, and I suppose some provision for either a dry sump conversion or an extended oil pan at least to get something like that to work. Quote Link to comment Share on other sites More sharing options...
flames_187 Posted August 9, 2006 Share Posted August 9, 2006 i just reread the whole post and look at autotrader my fault...all this time i thought there was a non turbo version... Quote Link to comment Share on other sites More sharing options...
Gollum Posted August 10, 2006 Share Posted August 10, 2006 It's ok flames, I thought so too for years apparently! Yea, 4 rotor would need custom intake, exhaust, misc bolts, oil system. But my point is that people have done it. I bet there's more 4 rotors then rotary motors in Z cars (judging by the only one I know if is auxilary's and his isn't on the road). Quote Link to comment Share on other sites More sharing options...
veritech-z Posted August 10, 2006 Share Posted August 10, 2006 There must be a way to come up with an eccentric shaft that will work. I bet you could probably just build your own 4 rotor out of 13b housings and rotors. I've always thought a 20b would be super good as a z powerplant. Big enough to fill up the engine bay, but still with the WTF!? factor of a smaller rotary... Don't feel bad flames, I thought for the longest time the 3rd gen RX-7 was available NA and even got into an argument with a guy about it, turns out I was wrong. Don't argue with an RX-7 owner about rotary trivia, in case the temptation ever strikes you...bitter voice of experience....Although I did once win an argument with a kid that claimed toyota used to sell a rotary carolla based on the fact that he once bought one from a puerto rican guy that had one in it. I was like, couldn't you read the part on the engine where it said mazda? Quote Link to comment Share on other sites More sharing options...
Gollum Posted August 10, 2006 Share Posted August 10, 2006 Chevy once made a prototype rotary vette But I don't have pics to prove it, just big history databases online of the rotary engines. Quote Link to comment Share on other sites More sharing options...
z_cars_rule Posted August 10, 2006 Share Posted August 10, 2006 holden down here in Oz made a rotary powered commodore. called the Brock RE SS or something like that. It was a VK commodore. Quote Link to comment Share on other sites More sharing options...
veritech-z Posted August 10, 2006 Share Posted August 10, 2006 I saw a corvette magazine with an article that featured that vette. It had a 4-rotor mid mounted rotary engine, but now it has a big block because the rotary died at some point, and it was built out of unobtanium like most cool old cars seem to be...I've heard the wankel was destined for the beetle, but they couldn't get the power they needed out of it and sold the patent off. I wasn't aware of that holden, but doesn't surprise me since I know GM was fooling with them for awhile. I think citroen or some other french company had a rotary car as well, but I can't remember the model. Quote Link to comment Share on other sites More sharing options...
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