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  #11  
Old 19-04-2010, 02:36 PM
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Are you still using the stock ECU (mass air flow sensor)? Or are you using an aftermarket ECU with a MAP sensor?

Changing the headers should give you better volumetric efficiency and will lean out on a MAP based ECU, but will have little or no effect on a mass air flow based ECU.
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Old 19-04-2010, 02:52 PM
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Ecutek is just a reflash of the stock ECU, so you will still be using your mass air flow sensor.

Ideally you would want to at least run it up on the dyno so the tuner can check it's not knocking or boost spiking. If that's not an option it would be a bit of a risk blasting it around the track all night.
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  #13  
Old 19-04-2010, 02:55 PM
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Ecutek is just a reflash of the stock ECU, so you will still be using your mass air flow sensor.

Ideally you would want to at least run it up on the dyno so the tuner can check it's not knocking or boost spiking. If that's not an option it would be a bit of a risk blasting it around the track all night.
haha, yeah I know what Ecutek is, some may say I'm lucky not to have blown my engine already

Might have to just go for a look and eat hotdogs.
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Old 19-04-2010, 03:07 PM
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if a mod will improve efficency, then it would need a retune to capitalise on it.

improved efficency = more air = needs more fuel = needs a tune!

otherwise, there would be no value in fitting the headers.

keep it off boost/load and you will be safe.
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  #15  
Old 19-04-2010, 03:40 PM
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  #16  
Old 19-04-2010, 03:52 PM
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Old 19-04-2010, 03:53 PM
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Old 19-04-2010, 07:05 PM
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Old 19-04-2010, 08:37 PM
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Old 19-04-2010, 10:01 PM
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