kawa74
Expert Class
Posts: 226
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posted December 26, 2011 12:14 PM
According to the service manual it says the rear wheel sensor must send 45 signals to the ECU at the 1 rotation of the wheel, so I don't think you would want to mess with the slots on the rim either
If it is reading a signal triggered by the ,..45..points of the wheel, , if it is a magnetic tigger,
Gen 1's the speedo was tiggered by points of countershaft sprocket nut , you ground off corners so it would read fewer signals, didn't they just move.. .signal trigger ... to the rear???
Stock ratio is 17 x 42 = 2.47 = ....Overall 3.98...,wheel rotation to Crankshaft, that limits MPH to... 194 MPH.... @ 10,600
MPH limiter is set at .................. 186MPH.......that is only 10,160 RPM....
Rear wheel star has 45 points....
a 17 x 45 = ratio of 2.65 = .....overall 4.23.....= .....185 MPH...@ 10,600 is this a COINCEDENCE
Grind 3 POINTS off star, it will tell the ECU, only... 42 signals.. , versus 45, ratio changes to........3.98.... 194 @ 10,600....
17 x 40 signals =... 3.63 ratio....wheel to crank =.....211MPH
ECU only knows what it is , signaled, grinding worked before , ...who's the first to try ??
Might have to grind off front star wheel to match back , so ECU won't see different , for TC
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"I have never met a man so Ignorant that I coun't Learn from him"..."Galileo"
  
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