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The mkiv Supra Owners Club

Speedo Query


Steve W

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Has ANYONE got a mkIV with the speedo STILL calibrated to 180KPH.

Either with 'stickers' for MPH, or, with proper face marked 0-112MPH ?

ie. NOT 'speedo-converted' but just re-faced/numbered.

 

Would the speedo 'break' if it's MAX' is 112 and it was driven

regularly over that ie. topped out often ? ?

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mine also has the original face nad has made reguler trips to the max, but i still have the limiter on mine, so dont know the effects of taking it off, and having the needle trying to swing round futher than it should

 

cheers

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Originally posted by Rob

Theres's a little peg by the zero, that the needle rests against.

You might hit this if you take it all the way round.

 

Which is why I never went past it....I got close to but never hit the little peg.

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What would you 'guess' (judge? ) the peg to be roughly ?

 

130, 140, 150 ? ? ? ie. are you artificially restricted by it ?

 

[ is the rest of the 'unmarked' face the same RATIO do you think

ie. could you extend the markings 'a bit' ]

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Would the speedo 'break' if it's MAX' is 112 and it was driven

 

Personally I would correct the speedo as I don't think that the delicate mechanism would like to be hammered into the pin too many times. You may dislodge it and affect your low speed accuracy.

 

Also I do not know how inaccurate the dial becomes beyond it's maximum calibrated maximum.

 

I'm going to be doing some replacement dial faces soon (nothing fancy just MPH versions but in any colour and with any logos you want)

 

Pete

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Probably will Pete,

 

May be interested in dial faces, and also, one of your LUVERLY

convertors/delimiters( ? it does delimit JAP limiter ? ).:rolleyes:

 

WOULD have gone for those 'Indiglo's but bit WIREY-UPPY (even

MORE wires on/behind dash - bit much already )

 

How hard is it to self-fit your 'box-of-tricks' - I've wired spotlights/

speakers etc. but NOT an elecy'/mech' by a long shot !

ie. I can use pliers/screwdriver but NOT too keen on finding 'output volts' etc. ? ? ? :conf:

:stupid:

 

Thanks, Steve.

 

{ps. Would it be 'safer' for YOU to fit ? Do you ? How much ?

Where ? etc. etc. }

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it does delimit JAP limiter ?

 

Yes.

It's been used on MkIV Supras, UK and Import, MkIII Supras Import 2.0 and 2.5TT's and also developing changes for the Mazda RX7. It's pretty much universal.

 

 

How hard is it to self-fit your 'box-of-tricks'

 

See http://www.trlperformance.com/dsc.html and download the dsc.exe file which gives pictures of the installation.

 

It's basically 6 wires to cut and splice. So it would be better if you could use a soldering iron. It isn't difficult so long as you understand the diagrams on the web site.

 

{ps. Would it be 'safer' for YOU to fit ? Do you ? How much ? Where ? etc. etc. }

 

You'd be hard pushed to kill the converter or the car electrics, they are pretty robust.

I do fit but try to spend my time designing other stuff. I offer plenty of help via telephone (as countless will tell you)

 

If you really want me to fit it then email me at [email protected] , I'm in Kenilworth, Warwickshire (enter CV8 2GL into streetmap.co.uk or multimap/autoroute etc etc)

 

Regards

Pete

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Guest Martin F
Originally posted by TRL Performance

 

Yes.

It's been used on MkIV Supras, UK and Import,

 

 

Regards

Pete

 

 

Eh ?? What would you use it on a UK car for ?

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Oh yeah :-) good point 156MPH isn't enough for some people is it :-(

 

I think I was getting confused with the VFCC (fuel cut)

 

I have done speed converter specials for Aus' where they'd changed the rear differential and thus the gearing and speedo calibration. One was -15% and the other -8% offset required.

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