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#182: 06-09-2013, 02:28 PM
Title: Duke
Rank: Premium Donator
Location: Tioga county ,NY
Car: 05 Legacy GT w/ STi 6MT~07 Solstice GXP
Posts: 2,473
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I do log them to see what they are doing. IMO change or clean when they are not running right. But if it's not broke don't mess with it. Around 220k when I did my last TB Service. There was 5* difference between right & left intake cams at start up. The two cams even up when motor got up to opt. temp. So before starting TBS, I ran Gunk motor flush thru it for 10min. After TBS & other maintenance. Both cams was back in sync at start up.
Original Motor, VF-40 replaced @ 314k+ with a VF-39. Tuning Alliance Stage 2+, 18.5psi. Member; 300K + club. Current mileage:331291