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found the coolant leak: coolant pipe going into block had NO O-Ring. Must have gotten torn and fell off during original seating. Car is now on it's feet, no leaks, running strong!!!!
PS1 turbo is as many have said: this is what the car should have come with originally. Zero drop in boost at 5200 rpm and just keeps pulling to almost redline.
The ADEngineering intercooler is great. Repeated WOT test runs to redline at map 1 and 2 on JB4, 17 psi peaks, and IAT was never more than 10 degrees over ambient temp of 87 degrees.
Gave the engine bay a much-needed cleaning with some stuff I found on YouTube. Amazing stuff: spray, agitate, rinse thoroughly, done.
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2012 135i Mods: air scoops, CP, K&N filter, PS1, ADE FMIC, BMW PE, JB4, 1M front body, full M3 suspension front and rear, M3 brakes front and rear, M3 rear subframe and LSD
Owned so far: 88 M3 x 2, 95 325is, 95 M3 x 2, 06 Mini Cooper S, 08 335 xi, 09 Z4 35i, 01 M3, 12 135i
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