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2nd Generation Specific 1986-1992 Discussion

S4-s5 Turbo

   
Old Dec 28, 2002 | 01:52 AM
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87turbollrex
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I was wondering if the s4 turbo is different from a s5?
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Old Dec 28, 2002 | 02:15 AM
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yes, well atleast the manfiolds and wastegates, not sure on the compressor wheel or the housing though. s5 are better though!
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Old Jan 15, 2003 | 10:17 PM
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how are the wastegates different?
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Old Jan 15, 2003 | 10:20 PM
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s4s have one wastegate hole s5s have 2, s5s can control more boost. The exhaust manfiold is completely divided and bigger on the s5s also = better.
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Old Jan 15, 2003 | 10:58 PM
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Originally Posted by 1Revvin7' date='Jan 15 2003, 08:20 PM
s4s have one wastegate hole s5s have 2, s5s can control more boost. The exhaust manfiold is completely divided and bigger on the s5s also = better.
That and electronics on the series 5 are better.But thats why theres haltech. :bigthumg:
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Old Jan 16, 2003 | 10:51 AM
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yeah those s4 have that twin scroll bs.
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