has any one done a electronic dash conversion. i what to put a electronic speedo in, not enough kph on the 1200 one. i have read a sender unit out of a r31 32 would screw into a l series box can any one give me any info on this.or what i can do

I believe this is true as well as the s13 one as there is a lot of ppl with ca's running s13 dashes

I've got a R33 dash cut + shut into my ute. To convert mech. speedo to elec., you need a Hall effect sensor. It screws in where the cable thingo would usually go on the transmission and You just run the wires up into the interior.

This is the only website I can remember online w/ the hall effect:
http://www.autometer.com/cat_accessoriesdetail.aspx?vid=114

I am getting a Hall effect + the adjustable speed box thing for $300 which is pretty good.
Have a hunt around websites, you might be able to find a bargain for one.

~Jacob