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Old 09-17-2017, 12:00 PM   #1
dravideditor   dravideditor is offline
 
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Running RX3 past 8000 rpm?

Hey folks,
So I have a 40 mile each way highway commute I'm doing on my 2015 RX3.
There is a great secondary road I take when I have time, but more often than not I take the highway for time's sake. I'm running the bike at 8000 rpms in 6th gear, but find I dip into the tach's red zone. Any feedback if the Redline on the RX3 is really to be avoided? I have yet to hit the rev limiter.
Dave
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Old 09-17-2017, 02:19 PM   #2
Jay In Milpitas   Jay In Milpitas is offline
 
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You don't mention if you are running stock gearing. Mine is geared stock and I weigh under 155 lbs fully suited, so not much of a load for the engine.
On my freeway commute I would occasionally hit the rev limiter when passing cars. However that's a theoretical 90 mph and don't recommend it.

The stock gearing should give a 6th gear redline (9000 rpm) speed of 84 mph, above 75 mph at 8000 rpm. Is that how fast you are riding?
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Old 09-17-2017, 06:48 PM   #3
dravideditor   dravideditor is offline
 
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Good point. Up one tooth from stock on front sprocket to 14 I think. Otherwise stock. I'll double check my speed w/ my iphone/gps next time I ride. I'm 200lbs ATGATT with another 15lbs in luggage.


 
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Old 09-17-2017, 07:59 PM   #4
pyoungbl   pyoungbl is offline
 
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I recall seeing a post to the effect that the ECU has a hard limit of 11K rpm. That tells me that 9K is a conservative limit and not a destructive range. With stock gearing and a full load of camping stuff I found WFO to be about 74 mph (GPS). I'm not sure what that was in terms of RPM but it was the limit of what I wanted to do on the bike.


 
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Old 09-18-2017, 12:26 AM   #5
fjmartin   fjmartin is offline
 
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I have done long stretches at 8800 RPM without issue. I've also hit the rev limiter several times at 10500 RPM. I've got 13300 miles on mine.
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Old 09-18-2017, 01:14 PM   #6
Jay In Milpitas   Jay In Milpitas is offline
 
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Quote:
Originally Posted by dravideditor View Post
Good point. Up one tooth from stock on front sprocket to 14 I think. Otherwise stock. I'll double check my speed w/ my iphone/gps next time I ride. I'm 200lbs ATGATT with another 15lbs in luggage.
Stock gearing is 14/44. CSC doesn't offer a countershaft sprocket above that, only a 13 tooth which would allow the engine to more easily rev in 6th gear.
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