to much, or not enough power getting to it?

easiest way is to just use a stock coupe dash loom and it should all work fine

and an L20b isnt a good fit without knotching the crossmember. would might be able to get it in there and just be able to clear the bonnet, but it would be a far from ideal fit

New problem, tacho working, but car runs like crap with it working & coil gets hot. - Disconnect it, Car runs fine...

Gr...

Tacho working now, thanks tommo73

We used a cutdown Series 2 Bluebired Rad with a 12 inch fan mounted on the front of the rad, behind the grill. - Works weel, never gets over half.

would different size/profile tyre fix the speedo or is it way 2 much out?

what radiator did you end up using and fan? single or twin thermo fan on front of radiator(10 or 12 inch/???)

200b speedo cable might work out but probably need a recalibration for the speedo.

looking good, doubt you will get l20 in with out sump mods and xmember mods, from looking at pigdogs

the coupe taco picks up pulse from positive coil supply
like pic,not negitive like after market tacos
u have it hooked up right just swap the wires going thrugh
taco loop over[power running wrong way through loop it will flicker]
thats y the black with white trace wire has a male and female connectors
so it cant be connected wrong
tommo

In your diagram you have the signal feed to the tacho to the + side of the coil. It should be connected to the - side of the coil.

To work, tachos need:
1) "-" side of coil for rpm pulse/feed;
2) earth;
3) "+" power feed usually via ign switch (although I have a Stewart Warner after market tacho which doesn't require a power feed. It just has earth and "-" side of coil)

The wire to the + side of the coil is simply the coils power feed from the + side of the battery/ignition. By wiring as per the diagram you essentially just have both sides of the coil connected to the + side of the battery.

Measuring up the L20b for another ute now... :) 0 Wonder if we can get that in without modding the crossmember too...