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Old 06-17-2009, 09:50 PM   #34
Chadwick
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Join Date: Feb 2008
Location: Smyrna, TN, USA
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Not to discount Glen’s findings as I respect his knowledge and personal experience, but seeing how my name was brought up I figured I should respond.

The RX8 shaft has been in my car since March of 08 and has consistently been spun to 9k RPM and seen above 300 lbs rwtrq. We pulled the motor apart a few months ago to try out the ALS apex seals and the front and rear stationary gears show no signs of wear and the shaft is still like new. As a mater of fact, most of the bearing babit was still there. I would estimate at that time the motor had close to 30 races on it and around 400 street miles. Now the motor has around 40 races on it and another 600 street miles and is still going strong. At the most resent ProSolo we gave last years National Champion in a 500+ rwhp, single turbo, 3 rotor a good run for the money.

I have plans at the end of this race season to drop this motor in my street car and build a new one for the race car. The new build will be using the RX8 eccentric shaft along with a few other tricks to reduce the rotating mass. Time will tell, but at this point I see no reason to go back to an REW e-shaft.

Dan
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93 RX7 BB (Race Car)
93 RX7 SSM (Soon to be IBM and a daily driver)
05 Silverado Z71
08 Mini Cooper
80 LS RX7 (for sale)
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