Quote:
Originally Posted by nicknaz
I think so.
N52 being non turbo and not direction injection bypasses a lot of systems that have been brought up as possible issues for the N54, such as fuel injectors, high pressure fuel pump and wastegate rattle.
From my experience, N52 doesn't suffer from heat soak caused power reduction and limp mode issues when driven hard for extended periods.
Lastly, I have never heard of N52 cars lemoned for any reason but have heard of many N54 cars lemoned due to the drivetrain
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I'm still conflicted as to what i should do, get N52 Z4 and track it (30 hard-ridden minutes per session), or spend extra money on finding ways to fix heat soaking issues on the N54 engine. Has anyone fixed this problem? I would probably start by wraping the headers. What exactly gets heat soaked on N54 engines? air intake temp too high? starter?