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AUS/NZ vs JDM engine query.

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Old 04-22-2009, 10:22 PM
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Default AUS/NZ vs JDM engine query.

I've searched for the differences between AUS/NZ and Japanese domestic market S2000 engines but haven't found a definitive answer.

Does anyone know if the JDM engines run higher compression than Aus/NZ versions due to the everyday availabilitity of 100+ octane fuel in Japan?
Old 04-22-2009, 10:29 PM
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Yes, JDM are higher compression; when the specs were being finalised the premium fuel WIDELY avail in Oz was 95 octane.

So we only get 176kw vs 180kw
Old 04-23-2009, 12:38 AM
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i think jdm is 184kw
Old 04-23-2009, 01:31 AM
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I think there is a difference in knock sensors too. Like the JDM doesn't have one. Can anyone confirm?
Old 04-28-2009, 05:49 PM
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From what I read and saw,
-the jdm engine certainly has higher compression ratio. The figure I read is 0.3 higher than our. JDM engine in a aud s2k produces higher compression reading and power.
-I though JDM engine has 2 knock sensors but last time I worked on an AUD s2k that had JDM engine replaced, there was only 1.

It will be interesting to get some confirmation.
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