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Which exhaust? Need some help

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Old 03-09-2005, 06:10 AM
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Default Which exhaust? Need some help

Hi guys,

I need an opinion here, i have a chance to exchange my RSR GTII for an HKS exhaust+cash for my GSR. On an NA setup i prefer the sound of an HKS and i also prefer the shape but I am planning to go turbo soon so i would like to know which is best performance wise and which is the least noisy on a turbo setup. Plz help me out

thks
Old 03-09-2005, 06:56 AM
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Default Re: Which exhaust? Need some help (nut_018)

Whichever one is bigger. You need less exhaust restriction with a turbo. Don't worry too much about sound, a turbo car (assuming the dumptube or wastegate goes into the main exhaust) will be quieter than an N/A car because a lot of the high-pitched sound is dissipated in the turbine.
Old 03-09-2005, 07:05 AM
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Default Re: Which exhaust? Need some help (beepy)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beepy &raquo;</TD></TR><TR><TD CLASS="quote">Whichever one is bigger. You need less exhaust restriction with a turbo. Don't worry too much about sound, a turbo car (assuming the dumptube or wastegate goes into the main exhaust) will be quieter than an N/A car because a lot of the high-pitched sound is dissipated in the turbine.</TD></TR></TABLE>

what do you mean exactly by 'assuming the dumptube or wastegate goes into the main exhaust'?? is this effected by how the wastegate is mounted on the manifold?
Old 03-09-2005, 09:36 AM
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Default Re: Which exhaust? Need some help (nut_018)

bump..
Old 03-09-2005, 12:29 PM
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Default Re: Which exhaust? Need some help (nut_018)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nut_018 &raquo;</TD></TR><TR><TD CLASS="quote">what do you mean exactly by 'assuming the dumptube or wastegate goes into the main exhaust'?? is this effected by how the wastegate is mounted on the manifold?</TD></TR></TABLE>

The wastegate can be open atmosphere or resurculating. Im assuming you know how the wastegate works but for a extn. wastegare you can fab a exhaust tube to go back in to the exhaust piping. or just have a pipe going down, sideways, however.

Open dumptube (the pipe coming off the wastegate) is loud, resirculating is quiter.
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