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KC Turbos
DIY .72ar Stage 1.5 turbo upgrade
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[QUOTE="FaSSt9602, post: 936569, member: 1872"] Normal? No. But had started doing that right before those videos, as did the horrible shift flare. But, the good news is that I decided to screw with it some tonight. First on the list is figure out why my factory boost gauge was off, and I had my sneaking suspicions! Found the tee tapped into my map sensor line (used for a wastegate on an old non vgt setup I was testing) had cracked and left me with a bit of a boost leak. It apparently wasn't enough to notice a difference when pushing 30+ psi on a race file, but I had less than stellar results with a stock or tow file. I questioned if it wasn't the cause of some other weird paranormal activity my truck has been showing... Fixed it up, left the stock file in (I seemed to had "lost" 5th gear driving on the freeway a couple days ago so I loaded the stock file to limp home. Which it did, and shifted fine through all gears in what I thought was a limp mode. I couldn't build boost or get over 3000rpm) and took it for a spin. Not a huge surprise, but I was able to build more than 10psi, effortlessly built 25, and ran just like a stock truck, with a touch more pull. Got it back home, loaded my race x from Eric, and took that for a spin. Didn't get on it too hard, but the transmission is shifting much harder now (in a good way) and seems much more confident on the shifts. Overall truck seems even more responsive than it already was. Could the pcms lack of a good boost reference affect the transmission that much? I'm not holding my breath that I am out of the woods yet. I'll let the transmission learn for a few miles and see if I get any 3-5 shift flare. I'm not sure if that leak leading to the map sensor (and in turn the pcms boost reference) could cause all those issues, or cause the truck to go into some weird limp mode with no cel or anything else. On top of all that crap after installing the turbo, I attempted a boosted 4x4 launch and it wouldn't engage (no light on the dash when switching to 4x4). Suddenly, now it engages like nothing was wrong... Go figure. Hopefully I'll have some good high def go pro videos tomorrow and get back to doing my full review! Sent from my SCH-I535 using Tapatalk [/QUOTE]
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DIY .72ar Stage 1.5 turbo upgrade
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