Engine Died at High Speed
Senior Member
Joined: Apr 2006
Posts: 25,432
Likes: 648
From: Ontario
Re: Engine Died at High Speed
Thank you.
My explanation would have been similar. As the throttle backed off, the injectors shut down. System went lean and the ECM shut it down. Or the engine starved. Given the over the ground speed, the ECU said abort.
Same thing could happen to a totaly mehanical carbuerated engine.
One other possibility would be an over rev situation where he pushed in on the clutch, left his other foot on the throttle, the engine over rev'd to the limiter, and the engine shut down. Depending on what the driver did with the throttle it stayed that way.
My explanation would have been similar. As the throttle backed off, the injectors shut down. System went lean and the ECM shut it down. Or the engine starved. Given the over the ground speed, the ECU said abort.
Same thing could happen to a totaly mehanical carbuerated engine.
One other possibility would be an over rev situation where he pushed in on the clutch, left his other foot on the throttle, the engine over rev'd to the limiter, and the engine shut down. Depending on what the driver did with the throttle it stayed that way.
Senior Member
Joined: Mar 2008
Posts: 8,506
Likes: 1,139
From: St Louis MO
Re: Engine Died at High Speed
And I am waiting for you to understand the obvious.
But then, You have never driven a car at those speeds, or pushed and engine that hard,,,, have you?
Engineering is done in the comfort of the office. Real world tends to be differ't.
That's why Bridges sometimes fall down.
And engines blow up.
And the engineers learn.
I cannot take any credit for the concept. A Tuner here in town who races minis suggested the idea. I say it seems logical.
Last edited by Franc Rauscher; Feb 27, 2014 at 08:26 PM.
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Joined: Jun 2009
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From: Fort Worth, Texas
Re: Engine Died at High Speed
I've been dealing with consulting engineers who have never actually worked on the systems I deploy. I can't tell them a damn thing.
And the engineers learn.
Senior Member
Joined: Mar 2008
Posts: 8,506
Likes: 1,139
From: St Louis MO
Re: Engine Died at High Speed
I was an installer for years. Been there.
Senior Member
Joined: Apr 2006
Posts: 25,432
Likes: 648
From: Ontario
Re: Engine Died at High Speed
And I am waiting for you to understand the obvious.
But then, You have never driven a car at those speeds, or pushed and engine that hard,,,, have you?
Engineering is done in the comfort of the office. Real world tends to be differ't.
That's why Bridges sometimes fall down.
And engines blow up.
And the engineers learn.
I cannot take any credit for the concept. A Tuner here in town who races minis suggested the idea. I say it seems logical.
But then, You have never driven a car at those speeds, or pushed and engine that hard,,,, have you?
Engineering is done in the comfort of the office. Real world tends to be differ't.
That's why Bridges sometimes fall down.
And engines blow up.
And the engineers learn.
I cannot take any credit for the concept. A Tuner here in town who races minis suggested the idea. I say it seems logical.
Please explain it to me with pictures if possible.
Senior Member
Joined: Oct 2013
Posts: 2,152
Likes: 37
From: Orlando
Re: Engine Died at High Speed
The one piece we are missing is whether a tuner had been in there. My owner's manual calls for Z-rated tires (149 mph) so at 144 the speed limiter should not have kicked in with the factory program. OTOH if that was read from the speedo, who knows what the computer thought the speed was. Have not seen a disassembly but in my GM computers there is a fuel cut off speed and a turn back on about 5 mph lower.
Also there is " The traction control indicator turned on and the color was orange (not yellow). All other warning lights came on while the car was in-gear." but no CEL or codes ? That sure sounds like the computer crashed and reset when started.
ps Have been at or over that speed many times (used to race Corvettes). Am more concerned about tach, oil, and temp than speedo.
Also there is " The traction control indicator turned on and the color was orange (not yellow). All other warning lights came on while the car was in-gear." but no CEL or codes ? That sure sounds like the computer crashed and reset when started.
ps Have been at or over that speed many times (used to race Corvettes). Am more concerned about tach, oil, and temp than speedo.
Last edited by Padgett; Feb 28, 2014 at 08:37 AM.
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