180 mph speedo... JDM gauge cluster and converting km/h to mph...

[fastback90]

Has anyone modified their gauge cluster so that the jdm speedo reads in mph?

[biosehnsucht]

I've thought about trying to make some sort of gizmo to do that, basicly just have to output 1 pulse for every 1.6 input pulses, or rather output 5 pulses ever 8 input pulses.. a faster acting method would be to flip flop outputting 3 and 2 pulses every 4 pulses.. or even in sequence of 8 pulses input output on the first three, skip one, then 1, skip 1, 1, skip 1, repeat (would be smoothest). that should work I'd think, unless my half-asleep math is all wrong

hardest thing would not be programming some simple code in a device to do it but to actually find a device that likes unregulated 12V (which is doable, I'm just saying its harder than the coding, relatively speaking)

Heheh.. I've got a 240km/h german-spec cluster around IIRC..

[float_6969]

Or you could just get one of these...

http://www.lsauto.com/products.asp

[Nismo1182]

I so want one. 180 mph rocks.

[float_6969]

:withstup

[wangless]

i just won one off of ebay that goes up to 240kph. and its about like 80km = 50m?? or around there... so thats like 200mph ?

[paul_s13]

i just won one off of ebay that goes up to 240kph. and its about like 80km = 50m?? or around there... so thats like 200mph ?

240kph = 150mph, like the standard uk speedo, and its very easy to take a sorted CA well past that, mine used to go into the trip meter.

[wangless]

150??... i thought there was something wrong with 200...

080 - 050160 - 100240 - 150...

ohh... i need to work on my multiplication i thought it was 60 x 4. i guess thats what happens when you make a quick post.

[themadscientist]

Took my CA18DE to 200kph, not bad for 150HP:D

[float_6969]

how did you get the NA DE to 150? Not bad TMS...