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#1 |
![]() ![]() ![]() ![]() ![]() Drives: car Join Date: Oct 2008
Location: location
Posts: 1,033
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there's two kinds of over rev, only one of which the car can control
the first is fuel based over rev the other is a mechanical over rev which can be achieved through poor downshifting |
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#2 | |
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Crazy Oil Sniffer
Drives: MM 09 Yaris 5 Dr LB "Click" Join Date: May 2009
Location: ME
Posts: 498
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Quote:
A mis-shift is the scary stuff because there is nothing to prevent an over speed condition and the pistons can actually hit valves in extreme cases. This is what would worry me. My brother has a 94 Civic he drove for 12 years and he used to hold it on the rev limiter just for the heck of it. Now it is strictly a race vehicle and is still seeing the rev limiter! No problems. I wouldn't do it for sport, but hitting the rev limiter is no big deal. Overspeeding the engine is another story! |
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#3 |
![]() Drives: Soon Join Date: Nov 2010
Location: Texas
Posts: 25
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I was in first gear, there was no downshifting. The rev limiter failed.
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#4 |
![]() ![]() Drives: Black XA not yaris but close Join Date: Jun 2009
Location: DFW
Posts: 48
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Since you were going from 1st to second, the acceleration momentum could have kept it revving up. Did you notice a drop in acceleration right before you shifted? Im not sure if the limiter cuts fuel, spark or both, but it may have just kicked in. Or was it down hill at all? These little motors can take quite a beating and be fine.
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