JMB

FINALLY after 1072 miles I had dry pavement with 50 degree temps where I could actually nail the car in 2nd gear to see how it pulls......I took my foot off at 6500 RPM and all of a sudden the outer side of the tach gets a thick red ring from 0-7500RPM on the very outer ring of the tach and (I have it set to sport mode so the tach is round) and in the HUD I have the track mode tach and there was 4 or 5 round yellow circles filled in above the tach line! These stayed on for about 5 seconds....did I go above the redline and the tach is freaking out? I ran my motor to 6600RPM+ on the chassis dyno until the fuel cutoff and never saw any of this behavior.

The enclosed pic shows with the red arrow where the circular tach lit up.

lawdogg149

Yes my understanding is you over revved and hit the limiter. Seems that these cars have two limiters. First a soft one which is what you got. Basically a warning with the lights and slight fuel pull. Second limiter is more harsh with full fuel shut off and lights the same as you gotten. On your hud you should of seen 4 blinking red lights also.

JMB

Thanks and yes, the 4 lights were likely red...I thought yellow but it was bright out with the sun shining! Strange that I did not feel any fuel pull (I know this feeling all to well!) and that this didn't happen on the dyno....

occar

The yellow and red rings are shift indicators is all. If you had the hockey stick tach up, it would be a site of blue circles that then flashed yellow instead of the rings.

That said, occasionally you can trigger the rings and they stay on even after you leave the high rev mark. It's just a display issue if that occurs though. Also, they may have fixed it for the software in the Z06. I haven't triggered it since I sold my stingray and bought the z06.

Bill Dearborn

First, if you got into the limiter you didn't over rev the engine. The limiter kept that from happening. Second, hitting the limiter occasionally doesn't hurt the engine.

Bill

JMB

Is this out of the owners manual as well? For some reason I don't recall reading this but you've explained it well, thanks.

AlexMartinez

If you hi-rev before warm up you engine , the display will do this to warning you. Check the yellow and red small line when you start your car. It's disapear progresively your engine warm up.

JMB

This isn't the case here....I had be driving the car for almost an hour!

okaythen

at redline it pulls fuel and it doesn't bounce off limiter. why is that, bouncing off limiter is more fun. I guess this way it's safer on the engine?

Does it hurt the engine when it pulls fuel and engine just stops like that?

Kerviper

It's related to the shift lights for sure. I have had this many times when making a quick pull then shifting differently than the car thinks. For example if you run it up WOT to redline in 3rd then either get off of it at the top into neutral or get off into 7th (because your already doing 100ish). The car thinks I'm going to shift into 4th and stay WOT.
If your displays are stuck like that you can shift back into the gear it was expecting and it will reset.