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So with the tyres 235/85R16 and 3.9 diffs, the speedo will need correction.
My old pulse is set up for 235/75/R15 on the 3.9 diffs.
So some maths help needed. What teeth count will I need on the pulse generator to get the correct speedo reading?
Thanks
Martin
2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses
With 3.909 diffs, the propshaft will rotate 2,998 times, so would generate 74955.075 pulses.
So my 235/85R16 will rotate 636 times which equates to 2486.124 propshaft rotations
With rounding up its 75000/2486 = 30 approx.
I think I need a 30 tooth ring???
Martin
2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses
2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses
Lambert, yes my obd2 reader does have a correction setting, but thought I would get the Speedo correct as well whilst building the new one
Sent from my Pixel 2 XL using Tapatalk
Martin
2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses
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