I thought I'd better start a new thread rather than highjack bantambunny's.

 

Can anyone tell me, in some detail, how to convert a Jap import Z32 from km to miles?

 

Dave

1.6 km per mile :)

Devide by 8, multiply by 5.

Devide by 8, multiply by 5.

:rofl: :rofl:

Ask a silly question..................

i've used a 2.2k resistor in place of resistor 10 on the back of the speedo. Dead easy, took about ten mins to remove the speedo, about another 20 mins to remove and refit the new resistor.

 

Use a small piece of black tape over the 'k' on the km/ph then fit the cover together.

 

Before you fit it all together make sure you make a hole with a drill/soldering iron over the right hand variable resistor (as you're facing the front), insert a small screwdriver in throughthe top and take it for a test drive, i followed my dad and he increased his speed by 10mph then flashed his brake lights and i adjusted accordingly.

 

Dead easy :)

 

If you need any more help just have a search for converting speedo :)

i've used a 2.2k resistor in place of resistor 10 on the back of the speedo.

 

Checking on your thread on this subject (that I highjacked!!) do you mean 22k not 2.2k?

 

Dave

lol, sorry matey it should be 20k i couldn't get any and used 22k :D You're right :) Whoops :)

:rofl: :rofl:

 

 

Hes right Divide by 8 multiply by 5 !

Is it his Devide your laughing at ?? :)

Hes right Divide by 8 multiply by 5 !

Is it his Devide your laughing at ?? :)

 

well strictly speaking 8 km is 4.9709695 miles :D hehe

well strictly speaking 8 km is 4.9709695 miles :D hehe

 

Or if you want to be more accurate - 8km = 4.970969538 (we can all play this game) but enough of this frivolity, lets get to the point of this thread which is, how do I convert the speedometer and odometer on the 1995 Z32 I am collecting next Friday from km to miles.

 

Dave

Or if you want to be more accurate - 8km = 4.970969538 (we can all play this game) but enough of this frivolity, lets get to the point of this thread which is, how do I convert the speedometer and odometer on the 1995 Z32 I am collecting next Friday from km to miles.

 

Dave

 

Assuming they haven't replaced the face with a 120mph one so they don't have to do anything you'll have a 180/190kmh clock. Change the resistor for 20k then use the adjustment pot on the top to get it spot on using gps or another car at a set speed.

 

Not that hard a job, mine had a 120mph faceplate so had o remove that and fit a 180mph one which was a bugger to do as i had to hack all the old glue off again.

 

copied from markw's thread...

 

"The speedo PCB has the speedo dial mounted on it, so you have to disassemble the whole binnacle which is tedious but not too difficult. The only dodgy bit is removing the switch pods- the screw posts fragmented a bit when I took mine apart so I had to buy some longer screws when it came to put it back together.

 

So there are the two options- one is to tweak the existing set-up and the other is to swap the resistor, but you still need to tweak it afterwards to get it reading right.

 

I think the adjuster screw that SRRAE speaks of is the calibration pot which I talk about. I know that there are (at least!) 2 versions of PCB and mine had 2 calibration pots- one for the offset (i.e. it reads 0 when you're not moving) and the other for the scale (sets the range). On mine the pots are at the top of the PCB, so I drilled 2 holes in the speedo housing so that with the binnacle cover off, I could stick a small screwdriver down at twiddle on the move.

 

As far as the resistor change goes, you need to be a bit handy with a soldering iron. You have to desolder the old resistor and then solder in the new one.

 

Useful links:

Binnacle dismantle: http://www.300zx.co.uk/forums/showpost.php?p=297744

My conversion pt1: http://www.300zx.co.uk/forums/showthread.php?t=35682

My conversion pt2: http://www.300zx.co.uk/forums/showthread.php?t=36601

 

The last thread has lots of pics for reference.

 

Mark"

 

ADDITIONAL NOTE THE LEFT HAND ADJUSTER MOVES THE BONGING NOISE LIMIT HIGHER AND LOWER NOT THE OFFSET AS MARK SAYS

Don't forget though that the resistor mod will not remove the 112mph limit.

You will then need a new ECU/chip to do that.

Don't forget though that the resistor mod will not remove the 112mph limit.

You will then need a new ECU to do that.

 

I was lucky with mine, its derestricted already....i think, it's been off the end of the speedo a few times now and if the limiter cuts in at 112 then it should have stopped me