Forward into reverse-- theory?

[warrior]

So ABS sucks.. most of the time. The roads had iced over and I was coming to a stop at this intersection when my ABS went off. The car slowly came to a halt about 10' in to the intersection. No biggie, there were no cars and I was kind of haste with my foot.. hehe

Question: What if i was going about 20km/h and I slammed my gear box into reverse and popped the clutch.. what damage could I possibly cause if any.. or if i slowlyy let off th clutch to engage reverse drive?

[shazapple]

It wouldnt go into reverse. Reverse is just a normal spur gear and theres no syncros on it.

Ive thought about something similar. disabling the ABS, locking up the brakes, putting it in reverse and then letting the clutch out. car would probably hate it :lol:

I find the ABS just makes me go farther, especially at slow speeds. Ive learned to avoid it by not pushing down as hard on the pedal, or just not using the brake at all and gearing down (sometimes that causes the car to go a bit sideways)

[Wiscon_Mark]

Threshold braking FTW!

[ten80]

any one else's ABS go gnnnnaaa gnnnnnaa gnnnnnaa when it activates? I do hate my ABS, but I wonder if I would be able to react as quickly to wheel slip, especially on ice, where there is very little tire feedback.

[Wiscon_Mark]

All ABS systems make tons of noise. The Subaru's seems a little noisier than usual though.

[badbasser98]

My cousin found out what happens... you thrash the tranny... He lost 1st, 2nd, 3rd and Rev. This was on a MY00 Maxima AT though, and was also about 45 MPH. It makes a great noise though! :lol:

Also, I'd be worried about reversing the engine.. not a good thing.


any one else's ABS go gnnnnaaa gnnnnnaa gnnnnnaa when it activates?
Nope. It just sounds like a huge vibrater under the hood :shock:

[Wiscon_Mark]

Also, I'd be worried about reversing the engine.. not a good thing.

What?! The engine never goes in reverse, dude. Your tranny would either not let you, or break before that happened.

Even if the tranny would allow you to just throw it in reverse, and all damage aside, it's just not a good theory because in that kind of situation where the ABS would go off, you wouldn't have enough time to put it in reverse.

[Plays_with_Toys]

The Subaru's seems a little noisier than usual though.

Not true. Subarus are actually quieter than most. :wink: Trust me, I get tons of makes and models through work. Actually mercedes benz has a really loud ABS, and possibly the only ABS I would trust. It takes a really skilled driver to stop quicker with a threshold brake than the ABS on Benz's takes.

EDIT: My room mate was talking about his old 80's blazer, and he said he would throw it in reverse on slick roads and he said it stopped quick enough that it felt like you hit a wall.

[Reason]

I don't have the normal AT gear indicator. I replaced mine with a shift boot. When I think about it I forget what gear is what. If I go with the flow its all good. Anyway I was on the highway doing 40-45 off the ramp. I think I had it in 3rd and popped it in reverse. All you hear is a click, and the transmission was disabled. I had to pull over shut the car off and restart it before I was on my merry way. This was about 3 months ago and my transmission is fine. So you can throw that theory away.

[rougeben83]

On a lot of AT cars, they have safeties that will shut the engine when you try to shift from D to R (ask me how I know...twice :shock: ).

You can't jam it into reverse on our cars; reverse has no synchro, so you'll just get a bunch of grinding noises. Not to mention that if you try it, you'll blow up your tranny...but I digress.

You can let off the brake real quickly and reapply to the threshold. Learning how to drive on a non-ABS car taught me that much.

And yes, the first sticky snow of the year and I tried to rid the ABS, something started to hum whenever it kicked in...anyone got any ideas?

[Reason]

I dont have ABS, I pulled the fuse. I can't stand ABS...

[Plays_with_Toys]

For what its worth, the more weight you can shift onto your front tires the harder you can brake. Considering that the front brakes do 60-70% of the braking in a car. If you slam the brakes or if you brake too quickly, you outpace the weight shift of the car. The more weight on the front tires, the more pressure the tires exert on the ground the more they stick. Just like if you rub your palms together and then push them together harder and harder they will stick more to eachother.

ABS takes away braking power generally one tire at a time (cycling through all 4 corners 20 or more times a second), so any time your ABS is going, you have 3 locked up tires and one tire sort of braking, but mostly just rolling. Again, ABS is a steering safety system allowing a car to have at least one tire still rolling allowing the car to turn.

http://en.wikipedia.org/wiki/Antilock_brakes

:grin:

[scottzg]

generally, if abs is kicking in, you already blew the threshold braking point. The solution is the same regardless of whether the car has abs or not, lift off the brake and try again.

abs only annoys me if im driving hard and it wrecks my line through a turn by forcing the car to understeer a few feet. Traction control, though, don't get me started...


Oh, my prefered method to dealing with abs is to make a hookup out of a burnt out fuse and run it from the fuse box out to a switch on the dash. Nothing is better than ABS for a panic stop.

[SHOfast]

generally, if abs is kicking in, you already blew the threshold braking point. The solution is the same regardless of whether the car has abs or not, lift off the brake and try again.

abs only annoys me if im driving hard and it wrecks my line through a turn by forcing the car to understeer a few feet. Traction control, though, don't get me started....


If the ABS is making you understeer and wrecks your line, as you said above, you actually blew your line and were understeering from a locked wheel or slide.

The only bad thing I can say about ABS is that once it triggers you cannot just jump off the brakes and reapply, the ABS keeps kicking for a second or two.

Manual gear boxes will not want to go into reverse, just a bunch of grinding or broken shift levers until things get to the right speed. Can the motor turn backwards? It sure can, it won't break apart just from that. How quickly you change the speed of the motor will be the key here. Ever see a RWD car spin on the track?

Brake, brake, BRAKE, slide, clutch in, spin, going backwards, I'm still ok, what happened, clutch out, stopped with stalled engine. I see this move several times a season. Everyone I saw would restart after a little cranking. I have heard of worse things happening, like this thread: F$%k Bmw (http://www.passatworld.com/forums/showthread.php?t=206260).

[warrior]

Oh, my prefered method to dealing with abs is to make a hookup out of a burnt out fuse and run it from the fuse box out to a switch on the dash. Nothing is better than ABS for a panic stop.

Is that even safe because you really don't have a fuse anymore.. just a switch..

[Wiscon_Mark]

Oh, my prefered method to dealing with abs is to make a hookup out of a burnt out fuse and run it from the fuse box out to a switch on the dash. Nothing is better than ABS for a panic stop.

Is that even safe because you really don't have a fuse anymore.. just a switch..

Inline fuse ;)

[warrior]

Inline fuse ;)

Elaborate.. I want to do this

[Huffer]

Sheeeeooooiiittt.... just handbrake the car 180deg and floor it! :lol:

[Wiscon_Mark]

Inline fuse ;)

Elaborate.. I want to do this

So you were talking about eliminating the fuse being dangerous. Well, just tap an inline fuse somewhere between the broken adapted fuse and the switch and you'll still have protection from overloading the wiring.

[rougeben83]

For what its worth, the more weight you can shift onto your front tires the harder you can brake. Considering that the front brakes do 60-70% of the braking in a car. If you slam the brakes or if you brake too quickly, you outpace the weight shift of the car. The more weight on the front tires, the more pressure the tires exert on the ground the more they stick. Just like if you rub your palms together and then push them together harder and harder they will stick more to eachother.

ABS takes away braking power generally one tire at a time (cycling through all 4 corners 20 or more times a second), so any time your ABS is going, you have 3 locked up tires and one tire sort of braking, but mostly just rolling. Again, ABS is a steering safety system allowing a car to have at least one tire still rolling allowing the car to turn.

http://en.wikipedia.org/wiki/Antilock_brakes

:grin:

You forget the most important aspect; the tires. You can put all the weight you want on them, if you're running rock-hard tires, your abs will still kick in.

If you activate ABS, *you*, not the machine, blew the braking point; you can simply avoid the problem of ABS by not activating it in the first place :wink:

Of course, easier said than done...

[ooberdoob]

...except in cases like last night where i hit a small bump under medium braking, the ABS kicked in, and i about sailed into the ass end of the Durango that pulled out in front of me!

i'm thinking about trying w/o the fuse too.