I've done this exact conversion in my VK Calais - a couple of things I learnt: 1. You will need to use the interface box to correct the speedo otherwise it will be way out. The 'trick' is the ground wire from the box needs to be connected up to that three pin connector from the original sender unit in the engine bay. I used the Jaycar speedo adjuster box and it works nicely and set it with GPS speed on my phone. 2. I placed the OBD connector in the glovebox next to the boot release button. Hides away nicely but easily accessible. 3. There are some spare globe spots for warning lights on the strip under the dash. I used the one on the LHS for the engine check light. The one on the RHS, I put the alarm flashing indicator. Looks completely factory. 4. The three pin sender connector from the original sender runs back into the cabin and connects to another connector. Using that 'internal' connector means you can delete the engine bay wiring for the sender and wire the adjuster box in under the dash.. I hope that makes sense.
Hey mate, I haven’t tackled it yet but definitely want to try and get it working in the future. When I can figure out what wires I need from the ecu to connect to the dash I will make a video on the process.
@@TAVOTravsDIYGarage awesome sounds good I've had a few goes and many many pages of wireing to make it all work from what I can tell it is very difficult as the 6 cyld dash should be able to read the signal but will read a wrong signal and the v8 dash calc is different also so definitely looking for some help in the future
I've done this exact conversion in my VK Calais - a couple of things I learnt:
1. You will need to use the interface box to correct the speedo otherwise it will be way out. The 'trick' is the ground wire from the box needs to be connected up to that three pin connector from the original sender unit in the engine bay. I used the Jaycar speedo adjuster box and it works nicely and set it with GPS speed on my phone.
2. I placed the OBD connector in the glovebox next to the boot release button. Hides away nicely but easily accessible.
3. There are some spare globe spots for warning lights on the strip under the dash. I used the one on the LHS for the engine check light. The one on the RHS, I put the alarm flashing indicator. Looks completely factory.
4. The three pin sender connector from the original sender runs back into the cabin and connects to another connector. Using that 'internal' connector means you can delete the engine bay wiring for the sender and wire the adjuster box in under the dash.. I hope that makes sense.
Thanks mate some useful tips that I can use there.
Keep up the hardwork! Can't wait to see the finished car!
Thanks buddy
Well done old mate.
Thanks buddy.
Great job doing a similar project where did you get the speedo kit from?
V6 conversions in nsw.
Thanks I'll send them an email@@TAVOTravsDIYGarage
Hey mate have you managed to get the trip computer side of the dash running? I've been trying to get mine working again since a 304 conversion
Hey mate, I haven’t tackled it yet but definitely want to try and get it working in the future. When I can figure out what wires I need from the ecu to connect to the dash I will make a video on the process.
@@TAVOTravsDIYGarage awesome sounds good I've had a few goes and many many pages of wireing to make it all work from what I can tell it is very difficult as the 6 cyld dash should be able to read the signal but will read a wrong signal and the v8 dash calc is different also so definitely looking for some help in the future
@blkvkcalais oh so something to look forward to then 🤔
Without the ratio box your speedo will read incorrectly. The pulse count between the ecu and vk are different
That’s what I am expecting, but won’t know how far out until I am get a proper test drive on the roads.