Stalling the 7AT

darrinps · 03-07-2011, 08:20 PM

Quote:

Originally Posted by TBSS2008

I don't track my Z (Auto X or Road Race) but I have heard the Z can get fuel starvation from hard cornering or in heavy transitions. How much fuel did you have in the car when doing this?

Agreed. That's what it sounds like.

Side note, I had an old Mustang King Cobra. Heavily modified engine and suspension. One day I was going home in the hills of West Virginia when I decided to have a little fun on an empty road. There was a sight switchback. I came out of the first curve just fine and set up for the second when pffffft she dies...no power steering or brakes.

Last time I did that trick.

1hot370z · 03-08-2011, 05:34 PM

Quote:

Originally Posted by CharleyGFX

So last night, I was driving home around 1AM. There were no cars on the road, so I figured I have some fun. I turned off traction control, put it in M mode and decided I was gonna drift the car, as I turned right, at the four way intersection. I was coming at it in 2 gear, went side ways and started sliding. Now, during this slide, I guess I was having too much fun? that I forgot to take my foot off the gas... So I spun out of control and was doing doing doughnuts in the middle of the road. After the 2nd circle, I tried to correct the car, and drive off. But EVERYTHING just turned off on me and my z started rolling backwards into the median. I freaked out and pulled the E brake. Put the car into Neutral and tired to start the car again.. it did not work. So I put it in park and got out of the car to see if I hit anything. Got back in the car and tried to start it.. it worked normal again. I drove it to school this morning and everything was fine.

Can anyone tell me WHAT happened and should I be worried about it? Hope what I wrote was clear enough for you guys to understand what happened.

From my experience in my old 5sp auto 350z, when I would drift it on the track and spin out, the car would automatically turn off and stall out, all of the lights would come on but remain in the ON position.

However, after talking to many other 350z/G35 drifters, they said this is just an emergency shut off the car will perform, even if the TCS or VDC is turned off. There is nothing wrong with your Z. In fact, I tried restarting it and it would go, until I put the car in park, shut it completely off, and then restarted it..

Doesn't happen with a lot of manual drivers because we can depress the clutch, just like in my new 370z. It's more of an automatic thing.
That's why. Just a safety feature.

1hot370z · 03-08-2011, 05:36 PM

I probably even have a video of it happening too on the track, if I come across it, I'll send it to you.

geterdone · 03-16-2011, 11:47 PM

He can drive how ever he wants, calm down guys. FREE COUNTRY

Jordo! · 03-17-2011, 01:18 AM

Quote:

Originally Posted by geterdone

He can drive how ever he wants, calm down guys. FREE COUNTRY

Yeah, those speed limits are just suggestions

And going forward down a road is for pansies

2011 Nismo#91 · 03-17-2011, 09:12 AM

Just a question but don't automatic transmissions the engine shut down because too low rpm as the wheels come to a stop and start going reverse and the transmission disengages in a spin?

I just remember a few Top Gear episodes and other videos where they are testing a car with an auto and spin it out and then show them restarting the car.

jpritche · 03-18-2011, 05:03 PM

It is possible and quite easy to stall the 7AT. Easiest way is to be on a hill, have the car in neutral, left off the brake and while rolling back switch it into drive. It will kill it everytime. Not saying this is what happened to you, just saying that its surprisingly not hard to kill it.

I learned this by putting my car in neutral to roll back out of the garage instead of reverse. First time I did it I was like wtf?!

Mr. Q · 03-19-2011, 05:29 PM

I would say it was his torque converter that stalled his engine when he began to roll backwards.

03-17-2011, 09:12 AM	#21 (permalink)
2011 Nismo#91 A True Z Fanatic Join Date: Mar 2011 Location: NJ Posts: 2,381 Drives: slowly Rep Power: 33858	Just a question but don't automatic transmissions the engine shut down because too low rpm as the wheels come to a stop and start going reverse and the transmission disengages in a spin? I just remember a few Top Gear episodes and other videos where they are testing a car with an auto and spin it out and then show them restarting the car. Last edited by 2011 Nismo#91; 03-17-2011 at 09:21 AM.

03-08-2011, 05:36 PM	#18 (permalink)
1hot370z Base Member Join Date: Aug 2010 Location: Gilbert, AZ Posts: 53 Drives: 2009 370z NISMO #80 Rep Power: 14	I probably even have a video of it happening too on the track, if I come across it, I'll send it to you.

03-16-2011, 11:47 PM	#19 (permalink)
geterdone Base Member Join Date: Mar 2010 Location: Yukon, Oklahoma Posts: 27 Drives: None Rep Power: 15	He can drive how ever he wants, calm down guys. FREE COUNTRY

03-18-2011, 05:03 PM	#22 (permalink)
jpritche A True Z Fanatic Join Date: Oct 2010 Location: Cartersville, Ga Age: 32 Posts: 2,571 Drives: '15 RR, '14 IS250 Rep Power: 30	It is possible and quite easy to stall the 7AT. Easiest way is to be on a hill, have the car in neutral, left off the brake and while rolling back switch it into drive. It will kill it everytime. Not saying this is what happened to you, just saying that its surprisingly not hard to kill it. I learned this by putting my car in neutral to roll back out of the garage instead of reverse. First time I did it I was like wtf?!

03-19-2011, 05:29 PM	#23 (permalink)
Mr. Q Enthusiast Member Join Date: Dec 2009 Location: Texas Posts: 349 Drives: 09 MB 370z Rep Power: 15	I would say it was his torque converter that stalled his engine when he began to roll backwards.