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Originally Posted by Modshack
Yeek...More bad info on the internet. I wouldn't put too much stock in either of those 2 links though there is a little truth in the second.
Most cars, due to emissions, now have complete fuel cuts when you close the throttle. This immediate transition to lean will cause the burble and snapping depending on exhaust design and back pressure. On my old ('08) Corvette you could tune this out with software by turning off the fuel cut and allow some fuel and combustibility into the system even on closed throttle. The more even burn did away with the burble and snap/crackle..It was all very tunable. Opening or closing the Exhaust flappers had an impact too.
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Race cars burble like crazy. I assume they don't care about emissions though. Is it more exhaust design then?
Anyone getting burble with the Stillen CBE and Berk HFCs together? I have the Stillen CBE alone and there is only a hint of burble.
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2013 Cadillac V-Wagon, RIP Z
Last edited by spearfish25; 12-31-2009 at 05:45 PM.
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