h a l f b a k e r yYou could have thought of that.
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What if you are doing a hill start with a heavy trailer attached, and need to give it a bit more throttle as you release the clutch? |
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I've never had to... I guess the idea should not be in affect in first gear. Or it could have a dial on the dash to adjust the amount of throttle allowed, or maybe this idea could include "the hill holder". |
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How about one step further: When the clutch is engaged and you are shifting gears the rev limiter holds the engine at the rpm that the engine will be spinning at in the next gear for a smooth engagement. |
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But then you wouldn't be able to engine brake. |
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this would seriously inhibit ones ability to chirp the tires or to double clutch. Also it would completely eliminate down shifting making winter driving a real mess. |
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Why do you think it would "completely eliminate down shifting"? |
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to downshift properly you put in the clutch then rev the engine to bring RPMS up to level of next lower gear then release clutch. If you dont do this you will either,create excessive wear on the clutch with slow engagement or you could cause the drive wheels to break loose due to rapid impulse of torque causing a loss of control. |
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I don't completely understand what you mean, but ok. |
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have you actually driven a stick shift? |
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Yes, I drive a Hyundai Accent (which doesn't have a tachometer). |
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//...or you could cause the drive wheels to break loose due to rapid impulse of torque causing a loss of control.// I thought stability assist and traction control pretty much take care of that.... I like the idea, and I think i'm going to post a seperate idea inspired by this. |
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But who wants stability assist and/or traction control... |
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//the drive wheels to break loose due to rapid impulse of torque// |
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Done it once or twice, albeit while driving very large trucks. |
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Its like stabbing the brakes hard if you just pop the clutch on a down shift(wheels slow their rotation sharply while on a low friction surface means sliding begins and no more traction) |
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Compression lockup, y'all. Easy to do with a large diesel engine. |
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//Compression lockup, y'all. Easy to do with a large diesel engine// |
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Easy to do with my 1.9 diesel turbo car too. |
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As [JH] says, you don't just blindly fully release the acellerator when changing gear, it's all about equalising rotation speeds. |
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//the clutch pedal is completely depressed// |
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yeah, this would make matching rpm's impossible, making driving a manual transmission correctly impossible. fishy. |
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I wouldn't necessarily limit it to idling speed, but perhaps something could be done with the clutch position switches to limit the engine throttle to, say, below 4500 rpm. Pop your clutch above that and you start to destroy things in a real hurry. There are also things you can do with the hydraulics to damp the clutch engagement so as not to tear up the drivetrain. |
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