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Mustang Forums
2011-2014 Mustangs
2011-2014 Mustang Talk
Anyone heard of S/C 5.0 letting go?
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<blockquote data-quote="kevinp" data-source="post: 11008123" data-attributes="member: 106826"><p>Correct, converters are pretty far from the exhaust port usually and can easily handle even a lean running supercharged car's exhaust temps that far away.</p><p></p><p>But throw some unburned fuel in there and they just start melting themselves down. The tune is very critical, most 'safe' blower tunes I have seen can get down to 10:1 A/F and that will wreck converters in short time. IMO if you want to retain the cats back the boost down and run it around 11.5:1 A/F, more boost and 10:1 a/f will probably net around the same power anyhow.</p><p></p><p>Dont forget that GT500s, ZR1 corvettes and CTS-V caddies all make 500+ supercharged HP from the factory and have cats. Like anything else its all in the tune, if you plan on keeping it rich its best to take the converters off.</p></blockquote><p></p>
[QUOTE="kevinp, post: 11008123, member: 106826"] Correct, converters are pretty far from the exhaust port usually and can easily handle even a lean running supercharged car's exhaust temps that far away. But throw some unburned fuel in there and they just start melting themselves down. The tune is very critical, most 'safe' blower tunes I have seen can get down to 10:1 A/F and that will wreck converters in short time. IMO if you want to retain the cats back the boost down and run it around 11.5:1 A/F, more boost and 10:1 a/f will probably net around the same power anyhow. Dont forget that GT500s, ZR1 corvettes and CTS-V caddies all make 500+ supercharged HP from the factory and have cats. Like anything else its all in the tune, if you plan on keeping it rich its best to take the converters off. [/QUOTE]
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2011-2014 Mustang Talk
Anyone heard of S/C 5.0 letting go?
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