Fitted a C6100-4 speedo correction unit

[stevo]

As the title says fitted one today not to hard to do and a bit of trail and error getting it set, the settings are 10011010 this is with 255/85R16 tyres fitted.

[kwackpeg]

V8 or TD5? auto or Manual?

[stevo]

TD5 Auto, Discovery

[Aaron40]

Hi Stevo where did you get the device from?

[stevo]

Hunter DI Spares.
phone number 0413813698.
Email: hunterdispares@yahoo.com.au

[kwackpeg]

I vouch for this too. Had mine installed for about 3 months and works great.

[d2dave]

Stevo. What did the unit cost?

[kwackpeg]

I paid around $110 from Hunters.

[stevo]

it has gone up I paid around $150 with shipping

[d2dave]

Just got a reply from them yesterday. $154 they quoted me. I will be ordering one.

[d2dave]

As the title says fitted one today not to hard to do and a bit of trail and error getting it set, the settings are 10011010 this is with 255/85R16 tyres fitted.

Stevo. I got mine today. Can you help with some answers for me.

Which wire did you used for the SCU input, brown or white?

How did you calculate the switching? In the instructions it says to drive one Km and count the pulses. How or where do these pulses come from?

In the Ratio Interface Table there are four columns.
1/In/Out Ratio
2/5000 P
3/6250 P
4/2548 P.

Do you know what this all means?

What vehicle have you installed yours in?

Installing this should be fairly easy. How to calibrate it was definitely designed by some one a lot smarter than me.(Not that that would take much:))

[stevo]

I used the brown wire for the input, I set the switches to 10011010 use that as a starting point I set mine so at 100km gps it is reading 100km on speedo and found 60km on speedo was 58km on gps. this was fitted to TD5 auto Discovery.


If you find the switch setting above is wrong for your vehicle working your way up the list of codes will make your speedo read slower and going down the page will make your speedo read faster.


Took me an hour to get right find a long straight road where you can pull off to make adjustments. mine is working great, I have two sets of tyres will not be that big a deal to change the settings and will take note where the switch settings are for what size tyres.

[clubagreenie]

Has anyone looked into the compatibility of the Jaycar correction units?

Speedo Corrector MkII Kit - Jaycar Electronics (http://www.jaycar.com.au/productView.asp?ID=KC5435)

[stevo]

apparently they do not work will cause an error code in the ecu, would probably be ok in the older cars that use a sensor off the back of the transmission

[d2dave]

Stevo. Did you do it the same as slunnie's install, that is by cutting the pink with green stripe wire that come from the SLABS ecu?

Also I see you are running 33's on your D2. Do they fit with out rubbing?

[stevo]

Yes use Slunnies method it seems the best as it brings everything in line with same speed readings, The rims I use with the 33s are offset so no rubbing when turning.

[d2dave]

If you find the switch setting above is wrong for your vehicle working your way up the list of codes will make your speedo read slower and going down the page will make your speedo read faster.

Just finished fitting and setting mine. Mine went the other way though. When I went down the page mine read slower. Final setting 11101010 D2 with 265/75/16 rubber.

Got it spot on at 100 and it is pretty right at 80, 60 and 50.

Having done a bit of research before purchasing I thought these had a switch with two settings for those that run two different tyre sizes.

[kelvo]

It's the Truspeed unit that has the switch.

[tommo1166]

I have just fitted one of these too, they are still available from Hunter Di Spares, price has gone to $175 delivered now.
Needed after going from original 255/65R16 to 265/70R16 which put speedo out by about 9km/h at 100km/h. Switch setting 01101010 ratio 0.9301 put everything pretty much spot-on through range. Cruise control works normally, have not found any problems with instal.
Thanks to Stevo for info on C6100-4 and to Slunnie for info on finding sender wire from SLABS.

Vehicle is 2004 D2a V8 auto bought earlier this year with only 32000km on the clock, still on original Michelin tyres. Only used as city car.
Starting to look more like a proper 4wd now with a few additions:)

[CU55TM Disco]

I have just fitted one of these too, they are still available from Hunter Di Spares, price has gone to $175 delivered now.
Needed after going from original 255/65R16 to 265/70R16 which put speedo out by about 9km/h at 100km/h. Switch setting 01101010 ratio 0.9301 put everything pretty much spot-on through range. Cruise control works normally, have not found any problems with instal.
Thanks to Stevo for info on C6100-4 and to Slunnie for info on finding sender wire from SLABS.

Vehicle is 2004 D2a V8 auto bought earlier this year with only 32000km on the clock, still on original Michelin tyres. Only used as city car.
Starting to look more like a proper 4wd now with a few additions:)


So who actually makes these units?
I can find minimal info about Hunter DI Spares online, would like to know where the unit actualluy originates from.

[Rangeie1981]

So who actually makes these units?
I can find minimal info about Hunter DI Spares online, would like to know where the unit actualluy originates from.

Do you still need one Rob?

[CU55TM Disco]

If the disco comes back from the panel shop, I wouldn't mind looking into one.

[kelvo]

So who actually makes these units?
I can find minimal info about Hunter DI Spares online, would like to know where the unit actualluy originates from.

I get the impression from when I bought mine it is a 'one man band' making them, and he seems to sell them based on word of mouth.

I've had mine for about 2 years now, still working a treat :D

[tommo1166]

Would agree with Kelvo, I think possibly locally made. Printed circuit in a plastic component box like you can buy in Jaycar. Anyway it does what is claimed, longevity? Ask me in a few years time.
Instructions a bit hard to follow, but with the info in this thread it is no problem to install.

Hunter Di Spare Parts Co.
37 Millet Street
Hurstville NSW 2220
Mob: 0413813698
hunterdispares@yahoo.com.au

[Werdenfelser]

An other Question here: i installed the Hunter-Box and it works with the 265/75 great. No problems at installation, Slunnies instructions are great here!
But: i would drive the 265/75 only at summer and my 245/75 at winter (i live in Bavaria, real winter tires are a must here!).

I don't want at every tire change pull the plugs at the ecu. I imagine about a switch, where i can select between big and small.

My question is, shall i just break the power supply of the Hunter-Box or have somebody an advice for an "Selector-Switch" at the sensor-cables?

Or do you another solution?

Many thanks!

[Slunnie]

An other Question here: i installed the Hunter-Box and it works with the 265/75 great. No problems at installation, Slunnies instructions are great here!
But: i would drive the 265/75 only at summer and my 245/75 at winter (i live in Bavaria, real winter tires are a must here!).

I don't want at every tire change pull the plugs at the ecu. I imagine about a switch, where i can select between big and small.

My question is, shall i just break the power supply of the Hunter-Box or have somebody an advice for an "Selector-Switch" at the sensor-cables?

Or do you another solution?

Many thanks!
Do you mean to set up with 2 speedo correction units? If so, I would just use a DPDT type switch to control the input and output switching of the 2 SCU's. Throw the switch one way and one SCU is connected and the other disconnected, throw the switch the other way and the SCU connection is swapped. Both are always powered.

[Werdenfelser]

Not two Units.

Only one.


One Tireset with the original signal and one Tireset corrected by the box.

So i need a switch between the original signal and the box. Or can i switch the box off and the original signal is smuggled through the box?

[tommo1166]

Or you can just open the box and change switches to default position.
If you still have instruction sheet look under C6100-2 In/out Ratio column for 1.0000 ratio which is default ratio and gives no change and set switches accordingly.
If you don't still have sheet, default switch setting is 00001010.
1 means up, 0 means down. Make sure you record current switch position for next tyre change.

[Slunnie]

Not two Units.

Only one.


One Tireset with the original signal and one Tireset corrected by the box.

So i need a switch between the original signal and the box. Or can i switch the box off and the original signal is smuggled through the box?
You might have to try the box off to see if it faults or passes the signal through. I'd expect it to fault though as the signal gets processed and regenerated.

I'd do the same setup, but just exclude 1 SCU, so wire the switch to just pass the signal through or to split in the SCU.

[CU55TM Disco]

Would agree with Kelvo, I think possibly locally made. Printed circuit in a plastic component box like you can buy in Jaycar. Anyway it does what is claimed, longevity? Ask me in a few years time.
Instructions a bit hard to follow, but with the info in this thread it is no problem to install.

Hunter Di Spare Parts Co.
37 Millet Street
Hurstville NSW 2220
Mob: 0413813698
hunterdispares@yahoo.com.au


175+ Clams seems kinda steep for a home-brew box of trickery...

Cheaper than a speeding fine though I spose.

Why have we not hit the builder/supplier for AULRO discount???
What other doo-dads does he make?
Perhaps something to replicate the SLS PLIP that isnt 75 Euro.

[Kaaaiju]

I bought one now for my 33s and 4.12 in my manual d2a td5 $218, so following the tutorial sunnie has done will it be the same for the new hunter product?

[Metoikos13]

I bought one now for my 33s and 4.12 in my manual d2a td5 $218, so following the tutorial sunnie has done will it be the same for the new hunter product?

Yes. I did it last year. I followed Slunnie's tutorial with no problems.

[Slunnie]

The guide if anyone is looking for it.
Truspeed speedo correction installation - www.slunnie.com (http://www.slunnie.com/phpBB3/viewtopic.php?f=7&t=5)

[Jazzman]

Hi all, the D2a has a different colour wire, it is in the same location in the plug but it's a yellowish orange with a green trace. At first I thought it might have been faded pink, but I don't think it is. The C6100 works perfectly well. The only trick was determining if the input to it was a sine wave or square wave. I've used the sign wave input and it works perfect.

[d2dave]

It was mentioned in an earlier post about longevity.

Mines still going good. It turns 9 this month.

[admiralranga]

Also for those wondering he's still selling them, I've just ordered one.

[Oldmowgli]

Would agree with Kelvo, I think possibly locally made. Printed circuit in a plastic component box like you can buy in Jaycar. Anyway it does what is claimed, longevity? Ask me in a few years time.
Instructions a bit hard to follow, but with the info in this thread it is no problem to install.

Hunter Di Spare Parts Co.
37 Millet Street
Hurstville NSW 2220
Mob: 0413813698
hunterdispares@yahoo.com.au

Hi all, I am contemplating fitting bigger wheels / tyres to the D2 I have bought but also keeping original set to swap over with larger ones as necessary, so will need this speed correction unit but with the ability to reset the dip switches back / forward.

I just phoned the guy at Hunter DI parts. (I found his ebay store but this item is not listed) Anyway, good news - as at Feb 2025 he still makes them on demand.

He's sent me a text with the details to order unit when I'm ready, and cost is $210 including express post to Brisbane (and presumably other mainland locations in Oz).

Regards
Oldmowgli