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Old 08-29-2017, 12:08 PM
ta man ta man is offline
Ultimate Warrior
 
Join Date: Apr 2006
Location: Clinton,Ontario,Canada
Posts: 5,366
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Quote:
Originally Posted by Steve C. View Post
Related. Hard to trust tach readings unless verified, "6000" rpm on a factory tach could well be 5500 actual. I have a AutoMeter tach mounted in my dash and recently found it inaccurate while installing my new port fuel injection system. Found out while programming the ECU when the program readout indicated the tach was reading low.


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I figured out that a few years ago my tach reads about 300 rpm high over 5000 rpm.

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466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2
373 gears 3200 Continental Convertor
best et 10.679/127.5/1.533 60ft
308 gears best et 10.76/125.64/1.5471