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3rd rotor

Old 01-05-2010, 09:58 PM
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TX 3rd rotor

Ok so i have been looking to getting a 3rd rotor for my 8 does anyone know anything about where and how to get this done i am in houston, tx i cant find anyone who deals with rotary's.... ne one with any info please let me know
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Old 01-05-2010, 10:05 PM
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A third rotor? Are you serious?
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Old 01-05-2010, 10:06 PM
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went back to srsly broke
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....why do you need a 3rd rotor for?
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Old 01-05-2010, 10:09 PM
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whines all the way home
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ahahh WUT...
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Old 01-05-2010, 10:19 PM
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hes gonna mount it on his grill of course!!! it also looks great in the back window especially in a front end crash
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Old 01-05-2010, 10:25 PM
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I'll just assume you mean a three rotor (20B). I do not know of any "kits" to install one. I guess step one would be to save up $20k. That might not be enough (I've never really priced it out) but it's a start. Once you get that done, let us know.
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Old 01-05-2010, 10:30 PM
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went back to srsly broke
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Maybe his second rotor broke, and he needs his third one.
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Old 01-05-2010, 10:50 PM
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Holy crap. Is this really as bad as its become?
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Old 01-05-2010, 11:14 PM
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HAHAHAHAHHAHHAHA are you serious?

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Old 01-05-2010, 11:25 PM
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Old 01-05-2010, 11:29 PM
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I saw a thread on a guy thinking of doing a 3rd rotor conversion kit or something like that...but i assume you mean 20b swap?
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Old 01-05-2010, 11:30 PM
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Originally Posted by Mawnee View Post
HAHAHAHAHAHHA hilarious
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Old 01-06-2010, 12:01 AM
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Make it stop! hahahaha!

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Old 01-06-2010, 12:28 AM
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$25,000 adder = instant 3rd rotor
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Old 01-06-2010, 12:40 AM
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oh gawd, this is going to get ugly.

Silverkilla: you can't just 'add' a 3rd rotor to our engine. That would be like having a V6 engine and saying you just want to add 2 more cylinders.

If you've got $25,000 lying around we'll point you in the right direction.
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Old 01-06-2010, 01:21 AM
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I wonder if I can just jb weld 2 rennies back to back and make a 4 rotor?

/chinscratch
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Old 01-06-2010, 01:55 AM
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you'd have to tack weld a metal dowel between the two eccentric shafts.
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Old 01-06-2010, 02:19 AM
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well yea nice sarcasm ... im a ls2 guy my bad but i saw a video wit a 3 rotor 20b with 485hp just tryin to get the 8 over 400 hp like my camaro
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Old 01-06-2010, 02:43 AM
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It was all in good fun, thanks for being a good sport about it.
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Old 01-06-2010, 02:52 AM
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Rotary , eh?
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Originally Posted by silverkillrx8 View Post
well yea nice sarcasm ... im a ls2 guy my bad but i saw a video wit a 3 rotor 20b with 485hp just tryin to get the 8 over 400 hp like my camaro
any particular reason you have 400hp set in your mind? Your RX8 is lighter than any Camaro with an interior so you need less HP to attain the same thrust. Just sayin'.

A 350whp stock Renesis is very possible, makes for a fast car and will be quite a bit easier on your fabricator and your wallet than doing a motor swap.

If (when?) lower than 10:1 compression for the Renesis becomes a public option in the future 400whp daily drivers would be possible. Until then it takes an impractically expensive fuel to drive on every day. It's just what you get with 10:1 compression on a ~2 and a half liter displacement motor.
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Old 01-06-2010, 03:57 AM
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Wheels, not rims!!
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Instead of adding a 3rd rotor to your clutch, add a carbon injector instead.
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Old 01-06-2010, 01:58 PM
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Originally Posted by aj's shinka View Post
it was all in good fun, thanks for being a good sport about it.
+1 just having some fun
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Old 01-06-2010, 02:11 PM
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Originally Posted by silverkillrx8 View Post
well yea nice sarcasm ... im a ls2 guy my bad but i saw a video wit a 3 rotor 20b with 485hp just tryin to get the 8 over 400 hp like my camaro
FYI with a 20B you can exceed 1000HP..
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Old 01-06-2010, 02:25 PM
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Why would an LS2 guy buy an RX-8 and expect it to make as much power as one. Better yet why and I am even bothering to respond to this thread? *** it, free post woot!
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Old 01-06-2010, 02:30 PM
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The myth that some believe that you can just add rotors to get a larger engine just aren't true. That would really be the same as saying I have a V8 and want a V12, can I add pistons?

A 3 rotor engine did exist in the Cosmo which never came to the US. Keep in mind this engine if transplanted could not ever pass an inspection as it is older than the car it is going into. Yes it is possible and has been done though.

It is hard to give accurate pricing and anytime someone mentions cost there is usually an immediate rebuttal from someone claiming it can be done much cheaper. These people usually leave many details out. If you want 400+ HP, it's going to be turbocharged and it isn't going to be the twin turbo setup that came on those engines. You are going to need a new ecu, fuel system, ignition system, etc. Basically if you were going to try to install a 3 rotor on a boat, you'd still have about the same amount of work and expense. On the low side plan on spending $20,000 although it could hit more. Yes it could be lower too. It all depends on how much you can do yourself and how good you are scrounging or negotiating for parts.

It still won't feel like a big V8 though. At least not on the low end. It's just different but still definitely fun. There isn't anyone here that could do this type of work although I know of at least one person that would claim they could. Your closest bet would be Rotary Performance up in Dallas. Expect it to cost alot and expect your car to be gone 6 months to a year. It's just too hard to list what you'll need but basically if it is coolant, oil, engine, drivetrain, computer, or suspension related, you are probably going to have to change it. The good news is that your interior probably could be left alone!

It's a big project so do lots of homework before deciding to do this.
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