Speedometer help - rb25 + 6 cyl tach + 300zx diff = WAY OFF

[supermario680]

So my s13 has a rb25 with a 6 cylinder tach and a 300zx rear diff, with the new tach the RPMs are correct but the speedo is WAY WAY off... Anything I can do to fix this?

[BoredEE]

s14-speedometer-correction-with-z32-transmission-t472168.html

I've lost the link to a thread that tells which solder joint to connect to affect which % on the speedometer.

But I'm sure a few minutes of searching will turn it up.

Oh I see its for a s13, maybe the s13 has the same correction solder joints.

Otherwise you can always buy a dakota digital.

There are different speedometer pinions you can try on the speed sensor but I have no idea which one you'll need.

Maybe a 300zx TT pinion will work.

FYI:
http://pic20.picturetrail.com/VOL1569/9 ... 761118.jpg

[supermario680]

Sweet thanks I'll check it out

[nismoplsr]

Switch to a Z32 NA speed sensor.

s13-with-rb25-swap-speedo-and-rpm-off-n ... 41139.html