Speedo / Delimeter

[Stratty]

Hi Guys,

 

I am importing my supra SZ from Japan and in order to get the car thru my local vehicle registration checks, the speedo must show both mph and kmh.

 

I know that at the moment, it shows just kmh, is it possible to buy a speedo dial that displays both?

 

Also, I have been told that it will be restricted to 112mph. Is it possible to buy some sort of delimeter?

 

Cheers

[SteveR]

You don't need to show both mph and kph to get through the checks - in fact if it's older than 10 years old it doesn't need anything more than an MOT; in which case you don't even need a working speedo, let alone one in, specifically mph or kph or both. Imported cars will have their speedo and odo reading in kph - this is fine.

 

How to fit a delimiter - let me know if anything isn't clear.

http://www.mkivsupra.net/vbb/showthread.php?t=110391

[Stratty]

Unfortunately, my local vehicle registration is different than the UK. I live in the Channel Islands and all speedos must show both mph and kmh in order to get thru the registration process.

 

Is there such an item as a speedo dial that shows both mph and kmh??

[SteveR]

Unfortunately, my local vehicle registration is different than the UK. I live in the Channel Islands and all speedos must show both mph and kmh in order to get thru the registration process.

 

Is there such an item as a speedo dial that shows both mph and kmh??

 

Ah sorry, I hadn't appreciated the differences associated with your location! There are dials that show both - I'm not sure of the UK specs do but if not then there are lots of after market dials you can choose from; and if they don't look like they come with both mph & kph on them it's a simple job to ask for it. Thor, Miami GT, (& Envy I think) all do dials for starters.

[AdzC]

I have a speedo face which shows both mph and kph on mine. It is just a stick on face though which was put on by the garage I bought my car from.

[SteveR]

I guess you could do that as a quick fix - buy a stick-on face (then remove it again afterwards). Getting at the speedo face is very easy.

[Heyrick]

Could try here:

 

Metal Monkey

 

Looks like good stuff.

[JODY T]

They do a standard 180 face that has both on it.. I have one in my car.... I might even have a spare... If you are interested PM me..

[SMiFFAD]

Could try here:

 

Metal Monkey

 

Looks like good stuff.

 

 

 

oooooooooooh they look nice, better than the normal EL rubbish that floats about... might have to invest in some

[Heyrick]

oooooooooooh they look nice, better than the normal EL rubbish that floats about... might have to invest in some

 

 

 

It's going to be dear for me though as I have 300kph dials and I'll have to get a Thor DSC at the same time to adjust the signal.

 

Anyone else had to do this?

 

Hoping to get the heater dials & clock to all match, should modernise things a bit.

[SteveR]

 

It's going to be dear for me though as I have 300kph dials and I'll have to get a Thor DSC at the same time to adjust the signal.

 

Anyone else had to do this?

 

Hoping to get the heater dials & clock to all match, should modernise things a bit.

Isn't 300kph the same sweep across the dial as 180mph? if so that can be achieved by fitting a normal speedo convertor. It's early so I can't remember what a DSG is.

[Heyrick]

Isn't 300kph the same sweep across the dial as 180mph? if so that can be achieved by fitting a normal speedo convertor. It's early so I can't remember what a DSG is.

 

Digital Speedo Converter

 

Link...

 

I don't think it's quite right as I thought about putting a 180 dial on and taking the converter off altogether but from looking at photos it doesn't seem to quite line up.

 

Anyone know?

[SteveR]

Digital Speedo Converter

 

Link...

 

I don't think it's quite right as I thought about putting a 180 dial on and taking the converter off altogether but from looking at photos it doesn't seem to quite line up.

 

Anyone know?

 

J-Spec motors have/had (when made) a speedo that reads up to 180kph. When you convert them (and remove the top speed limiter as that Thor product will do) the signal the instrument cluster receives is just a scaled down version of the signal it was getting. This scaling down is how the conversion from kph to mph is done - but you use the same speedo scale, but have to cover up the "k" from "km/h" so it only reads as "m/h" Check out this photo from my 'DSC + Delimit' guide - you can just make out the tiny peice of insulation tape I've put over the "k".

 

Is that any help??

[Heyrick]

J-Spec motors have/had (when made) a speedo that reads up to 180kph. When you convert them (and remove the top speed limiter as that Thor product will do) the signal the instrument cluster receives is just a scaled down version of the signal it was getting. This scaling down is how the conversion from kph to mph is done - but you use the same speedo scale, but have to cover up the "k" from "km/h" so it only reads as "m/h" Check out this photo from my 'DSC + Delimit' guide - you can just make out the tiny peice of insulation tape I've put over the "k".

 

Is that any help??

 

Not sure if you're talking to me or the OP but in my case I have a dial that reads up to 300 kph not the standard 180 kph you see on most J-specs. I have the 5/8 converter now and the tape over the K but I'm fed up with the needle only using 1/4 - 1/3 of the dial! It's so hard to be accurate on speed and its just naff.

 

I want to go back to a 180 dial and want white faces as well - as I understand it my only option is to fit a Thor DSC which is adjustable because a 5/8 conversion wouldn't be accurate on a 180 face (needs more like 7/8)?????

 

Anyone know for sure?

[SteveR]

Not sure if you're talking to me or the OP but in my case I have a dial that reads up to 300 kph not the standard 180 kph you see on most J-specs. I have the 5/8 converter now and the tape over the K but I'm fed up with the needle only using 1/4 - 1/3 of the dial! It's so hard to be accurate on speed and its just naff.

 

I want to go back to a 180 dial and want white faces as well - as I understand it my only option is to fit a Thor DSC which is adjustable because a 5/8 conversion wouldn't be accurate on a 180 face (needs more like 7/8)?????

 

Anyone know for sure?

Hi Heyrick, yep I was talking to you which is why I qouted your post.

 

Let me get a few things straight;

1 - you've got a speedo face that reads to 300kph - is that right?

2 - is 300kph roughly where 180 is on the photo I linked to?

3 - have you still got a 180kph (112mph) limiter fitted to the car or can you exceed that?

4 - when you say you only use ~1/3rd of the speedo's range do you mean you never, ever want to drive faster than ~180 kph/112mph?

 

At the moment it sounds to me as if you have a convertor fitted already, but should be looking to remove it, not add another!

 

Don't confuse what speedo face you have with whether you do/don't have a converter fitted - the two things are independent.

 

If I can help I will!

[Heyrick]

Hi Heyrick, yep I was talking to you which is why I qouted your post.

 

Let me get a few things straight;

1 - you've got a speedo face that reads to 300kph - is that right?

2 - is 300kph roughly where 180 is on the photo I linked to?

3 - have you still got a 180kph (112mph) limiter fitted to the car or can you exceed that?

4 - when you say you only use ~1/3rd of the speedo's range do you mean you never, ever want to drive faster than ~180 kph/112mph?

 

At the moment it sounds to me as if you have a convertor fitted already, but should be looking to remove it, not add another!

 

Don't confuse what speedo face you have with whether you do/don't have a converter fitted - the two things are independent.

 

If I can help I will!

 

Thanks!

 

1. Yes

2. no, see my photo

3. don't know for sure!

4. rarely but may do. I talk about the range because as you can see from the photo 100mph is only 1/3 of the dial.

 

I know I have a converter already, that was never a question (and that was why I was confused about whether you were talking to me).

 

I too wonderered about being able to take the converter off and just change the face but it doesn't seem to quite line up. Your 180 comes about where my 260 is whereas 180 mph = 289kph iirc

 

Maybe this doesn't matter though as speedos are always out anyway? It may just make it more accurate!

 

Thanks for your help!

[SteveR]

That's bizzare - but I think I know what is going on. Someone has fitted the 300kph dials, and someone else has fitted a convertor to turn those into mph dials.

 

Why they didn't just change the speedo face to match the needle's sweep, instead of altering the sweep to match the speedo face, I don't know.

 

Assuming you want your speedo to read in mph you're clearly going to have to ditch the speedo face you've currently got - otherwise you're stuck with 100mph being just 1/3rd of the way round the dial which is, as you point out, a tad silly. Alternatively you can remove the convertor and have it read in kph, but then you have to constantly remember 30mph = 51kph, 40mph = ...

 

What I think you'll need to do is;

- remove the convertor (hopefully it's a convertor & delimiter) and flog it on/chuck it in the bin

- also remove the dials, as they don't appear to match the usual alignment so no convertor will either, and flog them with the convertor as they DO match each other.

- buy a more usual convertor - e.g. Thor - (get a combined delimiter for the ability to do >112mph for just an extra £30) and some stock UK or Jap spec (or after-market) dials and fit accordingly (tape over the "k" in "kph" if using Jap spec)

 

Sorry dude, but you've got a few quid to spend.

I think Jezzybabes should be able to sort you out with a stock speedo face as he's a breaker. If you've got cash burning a hole in your pockets and want something a bitflash, now is a good time to get something after-market.

 

HTH!

[Heyrick]

I don't know about bizarre, I think this dial was standard on some TT Supras - I've seen a few around and a few come up in a search.

 

My convertor would be a standard one - it only converts the signal by 5/8th so it works with any setup - just difficult when, as in my case, you want to change the face for a different sweep.

 

The thing about the Thor DSC is that it is totally adjustable so I should be able to match it to a standard replacement dial face. I do wonder though if it just might be cheeper to get a set of standard dials and keep the convertor I've got.

 

What I really need to know is whether the signal to the dials is standard on all models cos if that's different then I'm stuck with these dials and I've got to get the Thor.

 

Thanks for your help!