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Is the stock tach off?

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Old Aug 18, 2004 | 08:37 AM
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Default Is the stock tach off?

I installed a shift light yesterday, I set it to 6400 and the light comes on when the tach shows 6k...is this normal on ls1's?
I've had a tune, so I don't know if that matters or not.
thanks
-Steve
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Old Aug 18, 2004 | 09:04 AM
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stock tach is slow
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Old Aug 18, 2004 | 09:07 AM
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The stock tach is off and gets worse the more power that you have.
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Old Aug 18, 2004 | 09:25 AM
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I agree...the higher up in rpm's you go the more off the tach is
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Old Aug 18, 2004 | 09:27 AM
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Mine is 150 rpms off at idle alone
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Old Aug 18, 2004 | 09:48 AM
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I'm talking like 500rpm's here...
if so, at the track I have been really going past my peak and shifting real late
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Old Aug 18, 2004 | 10:15 AM
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it is extremely slow and more power = quicker reving and it cant keep up just go by the light i think mine is barely at 6k if that when i shift at 6.5-6.6k
also if its regular tpye light(incadescent like autometer) it will be a lil late to just becasue they dont light up fast enough, if its led then its right on . the tach will get closer to accurate when in higher gears like 4th , 5th 6th,
lower gears it just doesnt keep up

keith
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Old Aug 18, 2004 | 10:19 AM
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I like the idea of just adding a shift light but keeping the stock gauge for a stealth appearance. What type of shift light set up did you use and how did you wire it?
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Old Aug 18, 2004 | 10:25 AM
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Ok, I have an LED type and I will use that to shift from now on, I had no clue before.

I got mine at Raptorperformance.com and I installed mine like this:



Mine has a black housing and yellow LED's, and I love it. Awesome product.
-Steve
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Old Aug 18, 2004 | 10:25 AM
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stock tach, aftermarket ones arnt my style, and i have a raptor shift light, very easy to wire, power ground, and a tach signal to terminal 10 at the pcm 1/2 hour to put in , mounts almost anywhere too, pillar , vents, colum , dash , ou get the idea, small too
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