s14 180kmh to 180mph conversion write up
 

i found this write up and i can confirm that the speedo is 100% accurate with stock rear gear ratio 4.08 and tire diameter but the odometer is off 5.7% high. but since us s14 owners are not lucky enough to get a ls auto 180mph speedo you can do it yourself. enjoy
also this works for both zenki and kouki jdm speedo's

http://forums.freshalloy.com/showthread.php?t=124389

heres a pic of my converted 180kmh to 180mph, and i was trying to calibrate the sr tach to read my rb but it wasnt near as accurate as my ka tach that i calibrated so i just put my ka tach in the jdm cluster. also my car actually has only 100k miles on it not 127k lol
Attachment 19129

already got one bro

https://www.s-chassis.com/forums/how-tos-installations-48/180mph-s14-gauge-40932/

also we have an in house how to section already.. we really dont want any outside ones due to past disputes of credit being giving bro. hope you can understand that.

well i didnt want to take the credit for the write up so thats why i posted the original forum thread i used to convert mine and i wanted to let everyone here thats i confirmed it and it works.