Speedo Recalibration C1600

Thanks Ollie, just dropped you a PM.

I've installed the C1600 as per Slunnies instruction, however on looking over the information sheet I'm confused as to where the dip switches should be. Mathematics was never my strong point... :eek:

I would be very grateful if someone can help me out on the dip switch selection -

I have a stock auto Discovery 2a V8 - 2003 running with 265/70r16 tyres. (31" diameter). my diffs are still factory - Ratio - 3.54:1 ?

thanks Lee

I'm going to install mine tomorrow so will let you know how I go but I was hoping that new tyre size / old tyre size would give me the rough ratio to work with but I may be completely wrong.

I have heard it's a bit of trial and error finding it otherwise.

I fit mine last night - took it for a test drive this morning before work and the needle on the speedo hasn't moved a bit. This as expected is not recording the trip distance on the dash cluster... not good.

Wiring - 12vdc (powered by key turn in ignition) to red wire / black wire to ground on chassis (up high on left hand side of glove box) / Green wire (No blue wire on my C1600) to Pink/Green wire going into Grey connector on SLABS ECU / Brown wire going to the cut Pink/Green wire running with rest of wire cluster / White wire not used.

Trial and error... but forever grateful for assistance..

Thanks

So I had my green and brown wire the wrong way round! Uber idiot - with the current dip settings I'm running 5 kph slower compared to a GPS.

Trial and error on dip switches now...

Thanks Ollie

Mine arrived today.

i have the same diff ratios and sized tyre what was the dip switch combo you used?

Mick

As an FYI on my 245/75/16 I had 10101010101010

Quote:

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Originally Posted by Shakey

As an FYI on my 245/75/16 I had 10101010101010

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Standard diff or 4.11s?

Standard. Diff sizes won't make a difference to the speed I don't believe from the earlier posts, but a may be wrong

Shakey - do you have auto or manual / TD5 or V8?

I've got my speed spot on with GPS, but find the gear changes are happening with higher RPM.

Settings are - 00011010