i put all four wheels off yesterday at the event and i stalled in third gear. car wouldnt start back up. it took it a sec. but after a few tries it fired. anyone else have this happen? good ol CMP

its a 98civic


[Modified by shane Z, 2:20 PM 8/12/2002]

 

Too much dirt in the air filter?


Matt

 

its normal. just take out the key, wait for couple sec and it would start up again nicely.

 

The intake gets angry when you try to use it as an exhaust, and I'm sure the cat is unhappy when you ask it to act as an intake filter.

Make sure you either give up early and put both feet in, or keep it on the track.

Warren

 

LOL

 

No this is actually due to the centrifical force put upon the car during the spin out.
The force pulls the gas from the line..happened to me when I spun at sebring a while back. Fun with physics!

 

talk about using those sphinctor muscles

 

if it's not even cranking ... then the starter was probably too hot.. and needed a minute to cool off

Suggestion....
put the clutch in when you spin.

 

Read my above post,,, even if you put the clutch in during the spin, gravity and its forces will pull the fuel from the line.

 

Sorry - maybe I am slow but I don't get this. Pull the fuel from the tank pick-up?

Kirk

 

I'm going to have to disagree w/ this. Vehemently.

Warren

 

I'm with you on that...40+ psi is plenty to keep that from happening.

 

I won't disagree vehemently, but I will add that my car starts every time I spin it.

 

I actually kept it running both times, at VIR and at Summit. At Summit I had to turn it off because I was stuck in the gravel, but VIR I just trundled back on and into the pits after Shultz passed through.


[Modified by Ross, 1:59 AM 8/15/2002]

 

I have spun my fair share as well and I have never seen a fuel problem as described above (and my car fuel starves in turns under a third of a tank). What I have had happen several times (w/ the fwd), is the engine shut off (temporarily) from front lock up (which I'd expect).


[Modified by phat-S, 2:18 AM 8/15/2002]

 

I should have preceded all my statements with the FACT that I am NO scientist. The chief instructor for the group I run with asked all the drivers who spun if their car stalled during a spin and vast majority of the cars did stall. He credited this to gravity.

My view: It depends on the serverity of the spin. A 2500 lb object spinning at avg speed of lets say 50 mph would create plenty of force to pull fuel from the lines. Yes the fuel pump is there for a reason, but when the engine is falling down to idle during the spin a few G's on the motor and fuel lines is enough to stall the motor. It should be no big deal,, if the motor dosent crank right away,, turn the key to the on position to let the fuel pump run for a few sec then try cranking again.

 

I think I saw one of your spins, but maybe it was in the Porsche, not the 'rex.

It was in Hogpen, same as where I went off, but you ended up on the other side of the track.

The coolest part of the video was seeing Jacobs almost lose it in that red porker. I wish I could have heard the audio from that clip.

 

Okay - I follow the theory now. No way, no how. Not with FI pressures and no float bowl like we used to have to deal with.

The source of the stall has been well documented here by people with experience and reluctance to restart is due to some combination of...

* Fuel vaporization due to heat soaking
* Flooding due to WOT condition when the car was killed
* Computer inputs at extreme ranges (or out of range) of normal start-up conditions (e.g. water temp)
* Driver bamfoozlement - turning the key with the foot flat on the floor or something

I am not a scientest either but I played on in a classroom

Kirk

 

Do you have actual evidence of this yourself? Has this happened to you?

I have spun my car more times then I care to remember. If I remember to put both feet in then the car doesn't even stall but if I forget then it can be hard to get started. I agree with Warren that its from using the engine as a reverse direction air pump not from centrifugal force.

Regards,
Alan

 

No I do not have actual evidence, but it has happened to me. I guess chief instructors are wrong sometimes too.

 

spinning is only allowed ifyou are driving a mad skillz yellow spinner type arrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

 

welll lets take this example...

it's from stock car racing

no computers to interfere.... no high temps for a computer to detect.
high pressure high volume fuel pumps
so there go your two ideas..
besides.. a lot of times.. when cars spins.. they keep going? Why? Because they PUT THE CLUTCH IN..

when the car spins after running for a while and stalls.
it will not start.. not even crank..
this means the mechanical fuel pump is not suppling fuel to the carb.
but after a minute or two ... You crank it and it starts right up
if anything your fuel pressure would have dropped.. due to you stepping on the gas to start the car the first time.

The heat in the starter keeps it from working when it's really hot..
it needs a moment to cool down
This is why your car won't start.

So yes heat soak to the starter is a problem


[Modified by Crazydave, 7:46 AM 8/15/2002]


[Modified by Crazydave, 7:46 AM 8/15/2002]

 

...and when they do kick into life, they often go "whooomph" and blow a big gout of flame out of the pipe from all of the unburned fuel that the engine pumped into the exhaust sytems as they shut off at open-throttle.

Geez - we discuss some wacky crap here.

K

 

Ahh, that one brings a tear to my eye - a vintage 2001 spin, the pork-chop's last one on track. Sniff sniff.

You'd need a camera at Hog Pen apex to get the full effect - Matt sideways, Corey sideways, me around - beautiful stuff.

 

Why would the starter work after a few seconds if it didn't at first? It hasn't been used until now, and the now windless stationary car has heat soak going INTO the starter as cranking progresses and from the block. Just that the explanation is confusing to me.

Gary