Vortech Cobra feels down 100hp?

viperbluelx

Sexton's Performance
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Sep 5, 2002
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I bought a 98 Cobra a few weeks ago with an S-trim supercharger. The car has had this current setup literally since 1999. I replaced the old serpentine belt and did a smoke test to check it for vacuum leaks. The car makes 10psi but literally feels like it's making around 300rwhp. I didn't notice fuel pressure slightly dropping while in boost but never heard any signs of detonation and the car had no obd2 codes present. Runs and drives perfect other than feeling very weak. I took it to the track last night just to verify and it only went 82mph in the 1/8th. Any ideas where to start?
 

harvboi05

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NY
plugs and compression test? can you grab a log and see how much air the maf is measuring and how much timing youre running? any info from the previous owner?
 

smashedheadcat

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If you have cats, it may be time to swap them. Nothing is really standing out to me. If there are no boost leaks, and you're not seeing belt slip, I'd go with spark plugs, fuel filter, and compression test.
 

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