964 trip computer - imperial measurements
964 trip computer - imperial measurements
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clockworks

Original Poster:

7,777 posts

175 months

Wednesday 21st March 2012
quotequote all
I've just collected my first Porsche - a '92 964 C2 Tip.
The car has an MPH speedo, but the trip computer reads in Km and L/100 Km.

Is there a way of making the computer read in miles and mpg?

computamedic

312 posts

263 months

Wednesday 21st March 2012
quotequote all
'Fraid not. Obviously a previous owner has changed the rev counter and got a Km unit rather than Miles. They are physically different units and not convertible I'm afraid.

Regards

Dave

clockworks

Original Poster:

7,777 posts

175 months

Wednesday 21st March 2012
quotequote all
Thanks - that'll explain why I can't figure out how to change it.

The car was originally sold in Japan, and imported to the UK a few years back, when an MPH speedo was fitted. I got the original Km speedo with the car.

majordad

3,631 posts

227 months

Wednesday 21st March 2012
quotequote all
I ve a friend here in Ireland with a 964 RHD, will I ask him does he want to do a swap ? We now use KMs.

turbo964

810 posts

213 months

Wednesday 21st March 2012
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clockworks said:
I got the original Km speedo with the car.
How exactly do you know you have the original speedo? Don't want to put doubts in your head re the accuracy of the mileage but these come up on eBay all the time.

clockworks

Original Poster:

7,777 posts

175 months

Thursday 22nd March 2012
quotequote all
majordad said:
I ve a friend here in Ireland with a 964 RHD, will I ask him does he want to do a swap ? We now use KMs.
How hard is it to swap? Not sure if I'm ready to start taking the dash apart.

clockworks

Original Poster:

7,777 posts

175 months

Thursday 22nd March 2012
quotequote all
turbo964 said:
How exactly do you know you have the original speedo? Don't want to put doubts in your head re the accuracy of the mileage but these come up on eBay all the time.
Of course, I can't be 100% sure. The specialist that I bought the car from had sold the car to it's previous owner, and bought the car again when that owner traded it in to the local OPC. AFAIK, he imported the car, and did the speedo swap. He made me promise to give him first refusal if I ever sold the car. He came across as a genuine guy, who stood by the cars he sold. Since this is my first Porsche, I decided to play it safe. I "bought the seller". When I viewed the car, he pointed out a few jobs that needed doing. All of these were completed, plus some others that I wouldn't have expected a dealer to do.

The total mileage on both speedos is just over 55k, and the service history seems to support this. The overall condition of the car is superb. It shows it's mileage with some wear in the interior, but it doesn't show it's age, and doesn't look over-restored. Everything works. It looks and drives like a well-cared for 5-year old.

melv

4,708 posts

295 months

Thursday 22nd March 2012
quotequote all
Handy for when u r abroad though!!

clockworks

Original Poster:

7,777 posts

175 months

Thursday 22nd March 2012
quotequote all
melv said:
Handy for when u r abroad though!!
True, and it isn't that hard to convert 12L/100Km into 24mpg - it's only the average fuel consumption that I'm really interested in. I've always kept track of how much fuel my cars are using, and it's a hard habit to break. I really missed having a trip computer in my MX-5 NC.

Vic_S

230 posts

271 months

Thursday 22nd March 2012
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Could be worse...
The OBC I got for my car turned out to be US spec.
MPH is ok, but MPG underreads by ~20%eek & Temp is in Farenheit...

melv

4,708 posts

295 months

Thursday 22nd March 2012
quotequote all
That'll be MPUSG then!

Vic_S

230 posts

271 months

Thursday 22nd March 2012
quotequote all
melv said:
That'll be MPUSG then!
LOL - it took me a while to work that out!

davek_964

11,325 posts

205 months

Thursday 22nd March 2012
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clockworks said:
How hard is it to swap? Not sure if I'm ready to start taking the dash apart.
Very easy, and you don't need to take the dash apart.

The clocks on the 964 are all a push fit - you simply need to lever it out, swap it over and push the new one back in. Tight fit though - a bit of vaseline on the rubber surround helps.

The most difficult bit is that you might need to remove the steering wheel to get it fully out.

ETA : A slightly OT question for the OP. You don't have a Philips TSU9600 do you? I recognised your ID, so if it's not you somebody on AVForums does / did use the same ID.


Edited by davek_964 on Thursday 22 March 18:27

clockworks

Original Poster:

7,777 posts

175 months

Friday 23rd March 2012
quotequote all
davek_964 said:
Very easy, and you don't need to take the dash apart.

The clocks on the 964 are all a push fit - you simply need to lever it out, swap it over and push the new one back in. Tight fit though - a bit of vaseline on the rubber surround helps.

The most difficult bit is that you might need to remove the steering wheel to get it fully out.

ETA : A slightly OT question for the OP. You don't have a Philips TSU9600 do you? I recognised your ID, so if it's not you somebody on AVForums does / did use the same ID.


Edited by davek_964 on Thursday 22 March 18:27
Thanks for the removal info. Not sure that it's worth changing the rev counter to an imperial version, but the fuel and oil gauges might have to come out, as there's some kind of misting/smearing on the backs of the glasses that's only visible in low ambient light conditions.
Are the bezels removable so that I can get to the back of the glass?

Yes, it's me from AV Forums.

davek_964

11,325 posts

205 months

Friday 23rd March 2012
quotequote all
Don't think you can get to the glass without opening up the clock - not sure how simple that is.

Seems you have good taste in remote controls and cars. smile

clockworks

Original Poster:

7,777 posts

175 months

Friday 23rd March 2012
quotequote all
davek_964 said:
Seems you have good taste in remote controls and cars. smile
I'm learning (at last!).


Googled gauge bezel removal, and you have to prise up the rolled edge. Not sure that I'm brave enough to do that just yet.