Went from 6 seconds to 2.1 in the quarter mile after a weekend of tuning

My 2004 STi was stuck at 6.0 for like two years with the same bolt-ons, and I just spent last Saturday at the dyno in Phoenix messing with the fuel map and wastegate. Took off almost 4 seconds just by leaning out the midrange and adding 3 psi on the top end, no new parts. Has anyone else seen that kind of jump just from tuning a stock turbo, or am I just that lucky with this setup?

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milar4623d ago

That 4 second jump is wild but honestly it tracks with how most people leave free time on the table, not just with cars. Like, how many folks buy a new phone because their old one feels slow, but never actually close out background apps or turn off the junk they dont use? Same thing with fitness, people buy new shoes and gym memberships before they even try sleeping more or fixing their diet. You got lucky cause your setup was already solid, you just had the guts to actually touch the tune instead of throwing parts at it. Most people would rather spend money than spend a weekend learning their own stuff.