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  #1  
Old 07-26-2003, 04:11 PM
BlackLabel6542 BlackLabel6542 is offline
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13b + 13b = 26b?

i was talking about throwing a 20b in my 7 when my friend mentioned putting two 13bs together. the next day i find a beat up RX-7 for sale the body is beat up bad but still driveable (like someone tried to drift and hit walls on both sides) but the engion is CLEAN it only has 129k miles on it the car is an 89 and they only want $600 obo i think i can pick it up for 400
so what does everyone think?
mainly looking for tips on how to throw two 13bs together.
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Old 07-26-2003, 05:03 PM
rotary911porsche rotary911porsche is offline
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Go to:
http://members.tripod.com/~grannys/4rotor.html

for an article detailing a four rotor motor.
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Old 07-29-2003, 10:50 PM
BlackLabel6542 BlackLabel6542 is offline
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Thanks for the link
anyone else got more info? like other ways to do it or a site with pictures
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Old 08-02-2003, 11:50 PM
Barwick Barwick is offline
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the general consensus is no, can't be done. But with money, anything can be done. You're talking about a new custom eccentric shaft, new dowel pins, new everything that goes the length of the rotor. Plus, when you get past a certain amount of torque, the eccentric shaft starts to flex and twist.

It's possible, but only if you're independently wealthy.
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Old 08-03-2003, 11:46 AM
illest7 illest7 is offline
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the eshaft is a major problem but it can be corrected with a support in the middle where the 2 sections meet (thats how mandeville autotech has always done it). It is definitely not a do it yourself project.
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Old 08-04-2003, 02:18 AM
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Yasunori Yasunori is offline
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www.3rotor.com

^these aussies are working on one.

*edit* the site is currently down
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Old 08-04-2003, 03:38 PM
MDiGiamm MDiGiamm is offline
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hmmm..

I'm sure this idea has already been thought of... but if you can make a 4 rotor uut of 2 13b's.. how about a 6 rotor out of 2 20b's? it would probably need a lot of customization to the engine bay to fit it.. but it wounds like a recipe for high hp and something new
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Old 08-04-2003, 06:38 PM
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Steel Steel is offline
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Re: hmmm..

Quote:
Originally posted by MDiGiamm
I'm sure this idea has already been thought of... but if you can make a 4 rotor uut of 2 13b's.. how about a 6 rotor out of 2 20b's? it would probably need a lot of customization to the engine bay to fit it.. but it wounds like a recipe for high hp and something new
holy crap that would be so disgustlingly...ridiculously powerful...well..it would just be downright WRONG!

but awesome
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Old 08-10-2003, 12:23 AM
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Entreri33 Entreri33 is offline
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2 20b's into a 6 rotor

the ecentic shaft woudl have to be a billit titanium piece with bearings as oftne as possible then it would still twist and snap most likely. But damn if it worked.

A 20b will make more power than is streetable anyway so why reinvent the wheel?
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Old 08-19-2003, 09:30 PM
BlackLabel6542 BlackLabel6542 is offline
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SWEET! my friend just started a metal working class and he told the teacher about putting two 13b engines together and he is hella into it. they have 3 cnc machines and a cnc lathe and he is gonna help us try and make the adapter that they made at granny's. i will post our progress
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