[VmaxMike]

Need some help here please I recently purchased this car and am still getting familiar. I understand the function of the Rev. lights in the Tach, and how they gradually increase the limit (lights go out) as the engine reaches operating temperature. My question is this, Mine never seems to extinguish the final light(6500rpm) and get to the 7000rpm red portion?


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The only ideas I have are either it has something to do with outside ambient temp. currently 30-40F. or I have something amiss with my car and this is some type warning. Can anyone shed some light?<o></o>

 

[wsfm5]

That's normal functionality - the last yellow light always stays on.

 

[mclarenf3387]

The last yellow light doesn't go out. There is nothing wrong with your car.

 

[BenTong]

The only ideas I have are either it has something to do with outside ambient temp. currently 30-40F. <o></o>

Nice theory thought

 

[VmaxMike]

I thought that initially too but just saw a video clip of the dash panel of another car while it was running and the light was not illuminated. So now I'm wondering....?

 

[BenTong]

Link to vid?

ECU/DME tunes can increase rev limit.

 

[VmaxMike]

I'll have to search again to find the video.... give me a minute. I just TMS sharked mine but retained the stock rpm limit
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BTW Thanks for the quick responses gentlemen, much appreciated this seems to be a great forum.<o></o>

 

[BenTong]

I'll have to search again to find the video.... give me a minute. I just TMS sharked mine but retained the stock rpm limit
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BTW Thanks for the quick responses gentlemen, much appreciated this seems to be a great forum.<o></o>

It's 3 in the afternoon on a Friday over here.
What else would I be doing? :dunno:

 

[bimmernut1]

Several photos in this thread show the last two lights remaining lit. Post 68 for example.

http://www.m5board.com/vbulletin/e39-m5-e52-z8-discussion/146055-100k-mile-club-7.html

 

[VacMan]

Think of it as an indicator of the impending redline. Most cars have something similar, they're just not usually illuminated.

Some random Google Images:


Mazda RX8:

69 Camaro:

69-71 Corvette:

Spec Miata:

 

[blackxs]

I was also under the impression that in first gear the rev limit was lower (6500?) than in the other gears (6800?). Does anyone know if this is true? I dont venture up there too often but a lot of cars do have lower rev limits in first

 

[feeblebob]

Wouldn't be too surprising, not much to be gained from revving high in first, it's gone in the blink of an eye anyway. A lot of turbo'd motors have boost limited in first and sometimes second too.