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Impreza tunning & 34mm restrictor advise???
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Old 19 Sep 2009, 09:26 PM   #1 (permalink)
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Impreza tunning & 34mm restrictor advise???

I have just sold my sprint car as buying an Impreza rally car, not too well up on turbo tunning so was after some advise!
I have looked at a couple of Impreza RA based clubman rally cars, but all so far have been running standard engines, i was wanting someting more tunned and have seen a few RA road cars with 420bhp+ want to know approx how much is an engine change to swap the engines? also need to have a 34mm restrictor on the turbo for rallying does this mean it will need to be remapped? obvioulsy the restrictor will limit the air and i guess the power will all need to be low down but how much power will be lost through having the restrictor? eg is it worth having 420bhp then fitting a restrictor or might it just as well have 300bhp? just a few questions cheers.
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Old 20 Sep 2009, 08:01 AM   #2 (permalink)
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I think you best ask Alyn for advice on tunning/ turbo restrictor's/ anti-lag systems. He has 20 years of motorsport experience.

Link: AS Performance - Rally Motorsport Specialists

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