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Engine Mods. Advice please!!
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Old 10 Sep 2007, 02:06 PM   #16 (permalink)
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yeah mate, basicly youve taken some of the restriction out of the system so your now hearing it sucking like a hoover.

since i had my new turbo and induction kit fitted i hear a huge sucking sound and the the turbo spool up lol
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Old 10 Sep 2007, 03:56 PM   #17 (permalink)
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Nice one Tidgy, i can stop worrying now then hopefully

on tickover and slight throttle upto about 2000rpm it sounds like the turbo is ticking untill it spools up then it sounds as expected, anything above 2000rpm and its a combination of induction noise, turbo spool up and then dump valve on gear change. The cold air induction also makes an odd noise during gear change, like it is reverse flowing or something


Its certainly louder than expected and i get looks from passing drivers and pedestrians all the time even when takeing it very easy with the throttle lol
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Old 10 Sep 2007, 06:20 PM   #18 (permalink)
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what do you mean by odd noise?

tbh i't just sounds like it sounds different cos of the differing airflow
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Old 11 Sep 2007, 04:19 PM   #19 (permalink)
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well it sounds like a dump valve when you change gear and it kinda chatters at you if that makes sense
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Old 11 Sep 2007, 04:33 PM   #20 (permalink)
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have you got a front mount on it?
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Old 11 Sep 2007, 04:45 PM   #21 (permalink)
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nope just the standard wrx top mount with a bailys dump valve and the prodrive y peice fitted
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Old 11 Sep 2007, 05:04 PM   #22 (permalink)
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o right, norm take s a front mount ot get the chatter, mine does it since front mount and induction kit went on, don't think its anything to worry about
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Old 11 Sep 2007, 05:45 PM   #23 (permalink)
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under normal driving and slow gear change it chatters a hell of a lot, when giving it some gas and fast gear changes you dont hear it which would be expected i spose, anyway it sounds very nice. i wasnt too worried as everything is running well since i fitted the cold air induction and decat so fingers crossed it will stay that way
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