Speedometer only goes to 180kph

2017/05/05 15:30:20

TwoDogs

Hi,
my Sw20 3sgte speedo only goes to 180kph which seems barely adequate, especially if one is to raise one's boost
or on a track day with a reasonable straight eg Eastern Ck, P.I or Bathurst.
Is that normal or do I have an NA speedo?

cheers,

2017/05/05 15:47:43

rikkir

JDM speedos are 180kph.
Australian delivered cars are 260kph

2017/05/05 15:57:40

TwoDogs

Thanks Rikkir,
I will have a look and see if there is a stop, or whether the needle keeps rotating.
Might test it on the way home tonight - M1 :o) maybe not.

2017/05/05 16:31:52

Kook

JDM will be speed limited to 180 anyway, don't think aus delivered were.

2017/05/05 16:37:34

TwoDogs

Really, how does it do that ? Rev limiter ?
I don't mind a rev limiter, but a speed limiter ? in 5th only ?
Might have to get massive rear wheels to raise the gearing a ton.... :o)

2017/05/05 16:45:47

Phiz

You'll find all jap imports, silivas, evo's, skylines, mr2's.. all have a limit of 180.

Just how there rules work in japan. If you have a standard ecu it will limit there, theres a speed cut defender you can get to fix it, or you can get a standalone ecu.

2017/05/05 16:54:27

TwoDogs

Thanks Phiz,
does the ECU know what gear I'm in...?
or is it a rev limiter, which is not a bad thing

2017/05/05 20:40:20

5SGTE

Based on wheel/gearbox speed and engine speed most ecus will assume/know gear selection as far as I know. Anyway the factory ecu has a speed reference from the speedo.

2017/05/06 14:33:03

Kook

I've heard rumours of the speed cut defenders making the ecu think it's going really slow so your steering is suddenly really sensitive. I don't have one so don't know for sure.

Can a piggy back ecu by pass it? Or does it have to be standalone?

2017/05/08 20:46:35

Admin

Hey two dogs, you won't be looking at your speedo when on the track. If you can look at your speedo, you are driving too slow! 😊

Speedometer only goes to 180kph

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