Member
Registered: 06-07-08
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Myth busters supossedly busted this one.. Yes you can stop a car by putting it in reverse.. Not on the more modern cars though... the problem with doing so.... You generate lots of tire smoke.... along with parts damage in the driveline..  I did it by accident once.. big mistake, but kinda cool.. as well as expensive. |
Member
Registered: 06-25-08
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i bet you were driving an auto.. because on most Manuals(stick shift) they have a lock on them u have to push a switch or pull a lever thingy on the gear stick to put it in reverse  |
Member
Registered: 06-27-08
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Didn't you watch the episode? Tory couldn't put it into reverse on the manual Honda they had and putting it into reverse on the Crown Vic shut it off to prevent damage. Here's why he couldn't slot reverse on the manual:
Reverse is a straight cut gear, all forward gears on cars (except super old ones where you still have to double clutch) are syncho gears. Syncho gears are designed to be able to slot into one another at speed. Reverse can only be selected at a stop or a very low speed or it will grind, exactly what it was doing when Tory was trying to select it at speed. The engine speed has nothing to do with reverse since pressing the clutch disconnects the engine and transmission, not the transmission from the wheels. If that were the case, upon pressing the clutch, you could select 1st at 150mph or reverse or whatever gear you wanted and then when you let it out you'd have a problem. Not to mention that it would likely be more complicated and expensive to build such a transmission anyway.
Disclaimer: IANA automotive engineer, but I do fix my own car as much as I can manage and I know how they work internally.
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Senior Member
Registered: 11-22-07
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The only possible way to stop using reverse is in an older model with an automatic. Also, this is a transportation myth.
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Senior Member
Registered: 01-02-08
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A lot of first generation cars had no syncro gears and you were still able to switch gears!
I have seen "stopping a car in reverse" on a German automotive TV-Show about two years ago. They used an old Ford with 5-speed manual transmission. At around 50 mph the driver switched to reverse and the wheels started to spin in opposite direction. The car slowly lost speed, stopped briefly and then began to accelerate backwards.
It doesn't matter if straight cut or not! In a manual gearbox, the gears never separate from each other. Changing gears is done by claw clutches you activate!
http://www.clube31.de/phpBB2/upload/forum/getriebe2_164.jpg
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Junior Member
Registered: 08-14-08
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G'day folks,
*** Stoping a car using Reverse Gear ***
There is one condition when this technique not only will work but used to recomended by the manufacturer, but only for special cars.
My father demonstrated how this works back in 1960. I forget tha make of car but it may have been a Humber Hawk or an old Daimler.
His own car was fitted with a PRE-SELECTOR gear Box and a FLUID FLYWHEEL in place of a conventional Clutch.
Note: These cars were commonly available in the UK back in the 50's and 60's.
I.E. you first move the Stickshift to Pre-Select the Reverse and THEN press/tap the "Clutch" foot-pedal to initiate the actual Gear change which is actioned hydralicaly.
Since the Fluid Flywheel has only a liquid "linkage" the gears do not "Crash".
The handbook recomended this as the Emergency stop procedure for speeds up to 60 mph.
As an UK ex-military (R.E.M.E.) technician I acknowledge that normally with a plate clutch and conventional gear box, the results of slamming into reverse gear will be at best HIGHLY UNDESIRABLE.
Regards Richard J Mills
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Junior Member
Registered: 08-15-08
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they apparentlet din't know that a manuel car prohibits this and also that an older car without a computer opperated trans will in fact go into reverse. Especially anolder chrysler and gm trans. try a 727 torque flight or even a 2 speed gm. But don't say"busted" without knowing about transmissions. quote: Originally posted by ubercam:
Didn't you watch the episode? Tory couldn't put it into reverse on the manual Honda they had and putting it into reverse on the Crown Vic shut it off to prevent damage. Here's why he couldn't slot reverse on the manual:
Reverse is a straight cut gear, all forward gears on cars (except super old ones where you still have to double clutch) are syncho gears. Syncho gears are designed to be able to slot into one another at speed. Reverse can only be selected at a stop or a very low speed or it will grind, exactly what it was doing when Tory was trying to select it at speed. The engine speed has nothing to do with reverse since pressing the clutch disconnects the engine and transmission, not the transmission from the wheels. If that were the case, upon pressing the clutch, you could select 1st at 150mph or reverse or whatever gear you wanted and then when you let it out you'd have a problem. Not to mention that it would likely be more complicated and expensive to build such a transmission anyway.
Disclaimer: IANA automotive engineer, but I do fix my own car as much as I can manage and I know how they work internally.
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