s13 tach not accurate>

[240sxcl50]

My brother just bought a 93 s13 coupe with an rb20 swap he has a rediculisly big tach on his dash and wants rid of it but the stock one reads like 4k when the big one reads like 2 any ideas?

[240sxcl50]

doesnt anyone know the answer to this???

[EvillE423]

The RB won't work on the KA tach. You could swap it out for something but idk what. I don't know much about RBs. Check this out. Looks like they readjust it or something and you could keep the stock cluster and gauge.

http://www.shop.rawbrokerage.com/BBT-RB ... ometer.htm

[I WE TODD ED]

Im pretty sure a J30 tach will work. I think thats what guys use with RB swaps. It fits in the gauge cluster where the stock tach goes. Someone confirm this?

[nissans13240sx]

J30 works also r32 tach will work as well. I believe there is a company out there that calibrates the s13 tach to work with rb swaps. LSautomotive possibly?

[nissans13240sx]

http://www.lsauto.com/products.asp