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Rev limit

Old May 8, 2003 | 10:17 PM
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Rev limit

Okay, so the RX-8 has a redline of 9000 RPM. Very nice. I've been pondering though....what kind of damage would there be to a rotary engine if you "over revved" it?? Seeing as it has no valves and valvetrain, I don't see what could break.
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Old May 8, 2003 | 10:22 PM
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http://www.rx8forum.com/showthread.php?s=&threadid=3987
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Old May 8, 2003 | 11:45 PM
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For one thing, the e-shaft might become e-lastic.

---jps
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Old May 11, 2003 | 09:18 PM
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cant rev it past 10K unless u have a new ecu....

and according to rotary study's u can rev it 25K and nothing should brake you'll need stronger internal gears and something else, i dont remember the article fully...
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Old May 12, 2003 | 01:27 AM
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Originally posted by RacingDynamcs
according to rotary study's u can rev it 25K and nothing should brake
WTF!!!???!!!??? link please?? post please?? something please?? ... that i'd love to see. :D
...please.

anyhoo, the imposed rev limit (fuel cut) is at 9.5k.
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Old May 12, 2003 | 09:44 AM
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i really dont remember the link but the info is online...

rotary cut off is 9.5K ??? have u seen the rx8 laguna seca video?? he reved it to 9.6 and 9.7 before shifting and their was no cut off
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Old May 14, 2003 | 09:44 AM
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Originally posted by RacingDynamcs
i really dont remember the link but the info is online...

rotary cut off is 9.5K ??? have u seen the rx8 laguna seca video?? he reved it to 9.6 and 9.7 before shifting and their was no cut off

only that annoying beep from 8500(i think) till the redline.

Sup with that ?
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Old May 14, 2003 | 11:42 AM
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it's an RX tradition. the engine is smooth, and approaches redline fast... it's just an audible warning to shift, and you can use it to time shifts, to avoid bouncing it off the limiter.
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Old May 14, 2003 | 01:17 PM
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Originally posted by wakeech
it's an RX tradition. the engine is smooth, and approaches redline fast... it's just an audible warning to shift, and you can use it to time shifts, to avoid bouncing it off the limiter.
It was also the first thing that I disconnected in all my previous rotaries. Once you've driven a rotary (or any engine, for that matter) for a while, you should be able to tell the revs by ear without some damned intrusive beeper scolding you for getting close to the redline. IMHO, of course.
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Old May 14, 2003 | 01:28 PM
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...some people really like it... but yeah, moving the trigger rpm up a few hundred wouldn't hurt, if at all possible.
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Old May 14, 2003 | 06:32 PM
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Originally posted by wakeech


anyhoo, the imposed rev limit (fuel cut) is at 9.5k.
I thought the cut out was at 10k? Maybe that was old info.
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Old May 14, 2003 | 06:42 PM
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Originally posted by RacingDynamcs
cant rev it past 10K unless u have a new ecu....
Wanna bet? Downshift from 4th to 2nd gear at 130km/hr and see what happens..
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