AdZ9
Member
Registered: 14th Apr 06
User status: Offline
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About a month ago my backbox on my corsa went kaput, the standard one and instead of having to pay for a new one my mate gave me one he had laying around. Its a 4" stainless steel one thats been fitted for a month, it sounds good but when i accelerate and if the revs go over say 3500 the sound goes like high pitched / scratchy type sound, its hard to explain suppose i could say it sounds like its hissing, does anyone have an idea of what it could be? or is it just because it was a cheap one
thanks
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powey
Member
Registered: 6th Nov 05
Location: Gwent, South Wales
User status: Offline
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Thats just the noise most small engined cars make with an exhaust, is it a raspy noise?
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AdZ9
Member
Registered: 14th Apr 06
User status: Offline
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not sure, its weird it sounds good until the revs get over 3500 odd, engine is 1.4 16v, i was just thinking it could be coz the backbox is a cheap thing, its got no brand or nothing
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powey
Member
Registered: 6th Nov 05
Location: Gwent, South Wales
User status: Offline
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Is all the baffles ok? if you hit it can you hear any rattles?
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AdZ9
Member
Registered: 14th Apr 06
User status: Offline
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aint tried that, what would i do, just hit the backbox and here if anything is rattling inside or around?
p.s thanks for help so far
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powey
Member
Registered: 6th Nov 05
Location: Gwent, South Wales
User status: Offline
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yup easy way to see if its debaffled to it will give a hollow sound but if its all intact should sound solid?
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AdZ9
Member
Registered: 14th Apr 06
User status: Offline
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ah cool, ill give it ago tomorrow morning when i go to work, if its still not so wet outside!
will update this when i do
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