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R33 Tuning

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SilverSlyder

Posted
Posted

Sorry I haven't got back to you Nismo_R33 been sick and I only got the Internet at work.

I got my Unichip installed at another place, I only got my car tunned at Autotech. Off the top of my head I can't remember how much it was.

Don't know if he tunes SAFC. You might have to give him a call and enquire.

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  • 2 months later...
old_man_silvia Rookie

old_man_silvia

Posted
Posted

I finally got round to getting my Skyline on the dyno at Autotech. It confirmed that it was quite a bit down on power (around 20-30 KW compared to similar skylines). They said it probably was the exhaust, so I have had a complete 3" system from the turbo fitted. Failing that they said it could be the airflow meter or the camshaft advancing mechanism? I believe it is still down on power from what it should be, even after fitting the new exhaust. Where can you buy airflow meters for the GST25ts? Also waht is the camshaft advancing mechanism. I will get it back on the dyno asap to confirm that something is still crook.

My skyline is only 60k kms old so I am a bit annoyed something like this is wronb with it, but thats cars for you. Any ideas appreciated.

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https://www.sau.com.au/forums/topic/18650-r33-tuning/#findComment-531809
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  • 2 weeks later...
old_man_silvia Rookie

old_man_silvia

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Posted

Well my problem has been solved. Thank heavens. To start the process of elimination I fitted a new 3" exhuast. There was some improvement. I then reset the computer, and the car was immediately transformed. Had it dynoed again yesterday and it compared favourably with another Skyline with similar mods (exhaust only). It is now getting around 130kw at the rear wheels. I can only assume that the cat was faulty or the muffler was too restrictive. Still does not compare in performance to the silvia though.

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