240kph speedo calibration

[WRXONP]

so the 240kph speedo i have reads around 40 to 50 kph too high . . how can i get it calibrated to read accurate ? do i need one of those speedo correctors that go into the gear box ? any help appreciated

[rskikn]

i swaped my 180k speedo out for a 240k one but just checked the diff ratio was the same.. i run sti gear box and diff so got mine out of a auto wagon cos theres is 4.44 ratio..

[gotasuby]

 WRXONP said:

so the 240kph speedo i have reads around 40 to 50 kph too high . . how can i get it calibrated to read accurate ? do i need one of those speedo correctors that go into the gear box ? any help appreciated

Maybe you have a 240 face on a 180 drive?

[rskikn]

if you wanna spend sum cash tho theres a place in otahuhu i think or penrose they do recalibration its called robinsons instruments..

[WRXONP]

perfect ! i work in otahuhu . i run STI 4.44. don't think final drive effects speedo reading as mine wasn't 4.44 stock

[BLAZD]

 gotasuby']

[quote name='WRXONP said:

so the 240kph speedo i have reads around 40 to 50 kph too high . . how can i get it calibrated to read accurate ? do i need one of those speedo correctors that go into the gear box ? any help appreciated

/quote]

Maybe you have a 240 face on a 180 drive?

+1

[WRXONP]

lol blazd the one you brought reads high too ! ! coincidence ?

[Joker]

i needa calibration too anyone know near palmy??

[Guest]

Robinson Instruments as per a previous post

Real fast turn around

Or work out the % out yours is, and make a frequency multiplier or divider

[Joker]

I want new speeo to read the same odo as existing... not the speed

[gotasuby]

 JoKer said:

I want new speeo to read the same odo as existing... not the speed

send it to me and ill make it same KM