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Old 08-19-2012, 02:07 AM   #1
Scooby Specialist
Member#: 311781
Join Date: Feb 2012
Location: Canada
2003 WRX w STI V8

Default How accurate is your tach compared to RomRaider logger

Hey Guys,

I'm just curious to know how accurate your tach is. I ask because my redline rev limit is set to 6900 "on" and "off" at 6700 in RomRaider but with the logger my measured redline is 7200. That's also where I shift around.

So I want to put my stock 2.5L redline at 7000.

So the settings would be "on" at 7000 and "off" at 6900 (stock 05 sti map). I'm just worried that it would now record the redline at 7300-7400rpm. Not sure if the tach is really reading correctly.

Could my tires cause this confusion? 225/50/16 (unsure of the stock 2003 wrx rim/tires). Its an STI swap in a WRX.

Any help would be nice!
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