PKK Adjustment to suit final drive ratio change

Holden/Delco Tuning. ALDL, OBD 1.5. Circa 1989 to 2004.
gtrboyy
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cars: vp 'moo mang' ute
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Re: PKK Adjustment to suit final drive ratio change

Post by gtrboyy »

Like Delco mentions but wire it up & mount under astray area drive along so I can turn dial untill it matches gps speedo out of my sle.

Probably use 3.45 gears too.
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The1
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Joined: Mon Jan 04, 2010 10:23 am

Re: PKK Adjustment to suit final drive ratio change

Post by The1 »

mikegmh wrote:Hi gents,

This is all fairly new to me so please be kind :thumbup:

I have changed diff ratio from 3.08 to 3.45 in a VN. Running NVRAM 12P.
I have had a play with the PPK figure to attempt at getting the speedo to read correctly however adjustments have no effect on the speedo reading. Standard figure is 6248.14.

Is there something i'm missing?
6248.14 % 3.08 * 3.45 = 6998.72 Should be close.
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