02 ws6 tach question
04-11-2011, 08:09 PM
#1
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02 ws6 tach question 02 ws6 stock when i rev it up or get on it in first the tach doesnt keep up with the motor revs. if i rev first out to rev limiter the tach only at 4 and still climing but when im cruising its pefect or rev it up slow. any ideas?
04-12-2011, 10:12 AM
#3
I know exactly what you're saying.
There is a delay between the actual engine revolutions, vs what the tach reads. In other words, the tach cannot keep up with the crank speed.
There is a delay between the actual engine revolutions, vs what the tach reads. In other words, the tach cannot keep up with the crank speed.
04-14-2011, 03:35 PM
#6
It's not a matter of "calibration", at a steady RPM, it'll read correctly. Its when the engine is ACCELERATING RAPIDLY that the tach can't keep up because it is slow in response to a quick RPM increase. It's not calibration, its reaction delay. All factory tachs do that, you need a quick acting aftermarket tach to eliminate that effect, or use a shift light. It's only a problem in 1st gear or when revving in neutral.
