I fancy fitting a set of astra gte digital clocks into my rs 1600i I know its not to everyones taste but I really like the retro look of them and I wanna keep the car looking old skool hence why I don't want a stack dash or anything like that. I've found enough info to get the majority of the wiring done its just the speedo that my main concern. So this got me thinking as the car is at devil developments getting a nice new zetec turbo engine built and fitted soon as i get it back I wanna fit a focus rs gearbox. Would it be possible to some how use the electric speedo drive on the focus rs box to run the astra gte digi speedo or am I miles off here lol? It'd be killing two birds with one stone lol

 

Yes I retro fitted them in my mk4 Sri astra

 

Watch out for the speedo sender unit going up in flames, quite common by all accounts.

 

Sender unit from the frs gearbox?
I don't know where you'd take a feed from the frs box tbh as the frs will get is signal from a speed bearing or through the ecu.

 

I have some clocks and sensor for speedo drive in me garage with lots of dust on

 

Thats basically what im trying to find out how the frs gearbox speedo works? Obviously they dont run a cable so dose it run some sort of transponder like the astra gte or are they ecus?

 

You need to watch what GTE dash you get/use, as there are diff types.
I fitted one recently, the car had elec speedo sender and was pretty straight forward to do.

i should have the wiring diagrams kicking about if you need it too

 

i have digi dash fitted in manta speedo way out apparently wrong transponder fitted

 

Do you mean the transducer?

I take it youve tried the red button on top of the dash?

theres a selection of speedo drives for these:

1 TRANSMITTER,DISTANCE 1 90148828 12 36 262
FREQUENCY,6IMPULSES (IDENT AA)
Note: USED WITH MANUAL TRANSMISSION
90148828

2 TRANSMITTER,DISTANCE HATCH 43,44 1 90149083 12 36 267
FREQUENCY,6IMPULSES (IDENT AH)
Note: USE WITH LCD INSTRUMENTS
90149083

3 TRANSMITTER,DISTANCE 1 (90149084) (12 36 268)
FREQUENCY,7IMPULSES (IDENT
AJ) (NLS.)
(90149084 )

4 TRANSMITTER,DISTANCE 20XE,C20XE 1 90149082 12 36 264
FREQUENCY,16IMPULSES (IDENT
AG) (USED WITH TRIP COMPUTER)
Note: USED WITH MANUAL TRANSMISSION
90149082

5 TRANSMITTER,DISTANCE 1 90185189 12 36 271
FREQUENCY,16IMPULSES (IDENT
AK) (USE WITH LCD INSTRUMENTS)
Note: USED WITH MANUAL TRANSMISSION
90185189

 

The dashes came in 8v and 16v forms 8v the more desirable. Both types have a switch on them which changes the readings for tyres size variations on the back of them. The transponders to the gearbox are wired with 3 wires iirc. 1 is the signal. But you can by pass using the transponder if you can find the signal wire from the car and wire to the signal from the dash. I believe the signal is a green wire from memory. The speedo will always be slightly out especially at high speeds with large wheels. I have a diagram of the wires also but a google search will sort you out. They are a piece of piss to fit tbh. There are about 4 earths from the back of the dash that you can join and run to earth.

 

how do i sort it out then m8

 

i have got 16 valve red top manual box

 

You'll need to change the switch on the back of the clocks.
How much is it out btw?

 

way out says im doing 90 when its about 40 ish

 

Sounds like that switch to me! It's worth noting if it says mph or kph. You change that by twisting the trip button I think

 

my mate has the astra digi dash in his mk3 cabby so it can be done will ask him how he done it when i see him next

 

Is there any speed signal wires in the rs 1600i I can tap into? Or what other ways can i get a single for the digi speedo?

 

i will ask retro manta see if they can shed some light on it

 

That'll be cool thank you

 

What's your management your using? It will more than likely be able to pull from that

 

its to do with the right transducer and the drive on geatbox

 

Yours could be clint. Luckily since I'm your mate and all, and have played with them for years I just happen to have a spare one here ill post it you matey

 

cheers pal that would be great

 

just spoke to them said gearbox drive and tranducer would have to match other than that pretty much whats been said

 

No problem Sir Clinton! That's what mates are for

Rob, if you were to keep your current box it wouldn't be a problem with the speedo drive. The only real way is to pick it up from the management now. If it's decent it will have all the outputs you'll need. If your using ofab I'm not too clued up on it

 

The management is kms mp25 fitted by devil developments but iv been reading up on the ecu spec and I cant find anything to say if it has a speedo signal output

 

is there anything on piston heads or similar forum that you could have a read up on

 

I dont think the rst box is going to last long with a 350+bhp zt lol thats why I wanna change it soon as.

Il give devils a ring when I get a chance and ask him if the kms ecu can run the gte speedo

 

I'm not too sure if there is a kit to pull a signal from the coil pack that converts it to a digital speed signal. I'm sure there was one years ago to do the same from a distributor?? Give DD a ring and put it to them? Or source a mtx box instead of a frs?

 

I have fitted a few sets,Sapphire,mk3 cab,novas etc over the years.The Sapp by the way was the easiest to get the transducer to work.The car was a ghia and had fuel computer and it had a two piece speedo cable with a pick up on the bulkhead. I just fastened it on there.The speed was way out but I found that swithing it from mph to km showed a true mph reading !!.