RB25 to S14 conversion tach resistor question

[Rezlo]

Just finnishing up my RB25 S1 Swap into my S14, I have the tach working but it obviously reads 1.5 times to high, I see most people say put a 10k resistor in and it corrects, well I tried that, inline the tach doesnt work and I dont want to try it any other way, Please can someone advise me where and how to fit the 10k resistor onto the tach wire.

Thanks

[Rezlo]

Pretty please some one help i feel so :duh:

[eh?]

Never heard of that resistor mod, but on the back of the tach there is a small blue adjustment screw. IF you have something else to reference RPM you can adjust it to be fairly accurate. (most tachs aren't very accurate anyway)

[g6civcx]

I don't know the calibration for the stock tach.

I recommend a good aftermarket tach because the stock tach isn't accurate, especially in the upper quadrant of the rev range.

[Rezlo]

I dont seem to have a blue adjustment screw, my car is a RHD Euro version with a 260kph clock, speedo seems to be very close to accurate,

My car looks bone stock rocking a pretty built RB25, last thing i want in there is a big gangly looking tach, ill have to see if i can find a skyline tach to swap in :(