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less backpressure
Posted by dave n (more from dave n) on Sat, 28 Dec 2002 12:21:23
In Reply to: stock viggen muffler vs. viggen sport by remus, viggamon, Thu, 26 Dec 2002 17:16:58
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I'll give my 2 cents! Even though the computer limits the power, I'd guess there will be slightly less backpressure in the exhaust manifold if there's less in the exhaust. I'll say if you reduce backpressure in the exhaust, the turbo turbine doesn't need as much pressure in the exhaust manifold to produce same power to turbo shaft. In any other car with mechanical boost limit, you'd get a few more psi boost but our computer will reduce boost to keep engine power to set levels. THe biggest gain is if you have the better exhaust and increase power with an aftermarket ecu. I'm planning on getting the speedparts 274hp ecu for my viggen. It already has the sporty exhaust and it sounds great. It's not as throaty as my spg but still sounds good.
dave
posted by 68.10.24...
Posts in this Thread:
- stock viggen muffler vs. viggen sport by remus, viggamon, Thu, 26 Dec 2002 17:16:58
- thanks for all the inputs!, viggamon, Sat, 28 Dec 2002 14:16:23
- less backpressure, dave n, Sat, 28 Dec 2002 12:21:23 <-- Viewing This Message
- Re: stock viggen muffler vs. viggen sport by remus, aaron, Fri, 27 Dec 2002 09:22:19
- Re: stock viggen muffler vs. viggen sport by remus, Will, Thu, 26 Dec 2002 22:42:10
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