Modify my 04, runs slower...makes sense....Help?
So the average time for my 04 GT auto is about a 13.99 @ 95. Mods are stock springs, Catless Bassani x, dynomax ultra flows, and a K&N intake, with no tune, not so great 315 Nitto NT555s, and 87 gas. The best I've achieved was a 14.18 @ 98.7 mph. Since then I've put on H&R SS springs, new iridium spark plugs. Accel supercoils, new 275 NT555 tires, and a 93 octane Bama race tune that really firmed the shifts up. So as result I'd figure I would be running high 13s. But instead I've run a best of 14.6 @ 94 mph. Why would I be going slower? The car runs perfectly fine. So what is up?
---------- Post added at 11:50 PM ---------- Previous post was at 11:48 PM ----------
I apologize. The best time was 14.39, not 13.99. My bad.
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