Active Autowerke E36 Methanol Injection System | Z3
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Superchargers and turbochargers generate more than just boost. They generate a ton of incremental heat during operation, resulting in a ‘heat-soaked’ engine and eroded performance. So their power increase creates its own power decrease problem. Oops.
But an Active Autowerke methanol-water injection system will help chill the intake charge to a cooler temperature – effectively combating the heat soak effect. Additionally, the methanol-water mix increases your engine’s knock limit – thus serving as insurance against unwanted high boost detonation.
The Methanol-water is precisely delivered and metered by its own electronic module. This module not only monitors the boost pressure within the engine but also controls the delivery flow to match both the engine load and demand as needed.
The large 1.8+ gallon reservoir is well suited for this task. The capacity is there to meet most demands; the trunk mounted location is ideal by being the furthest position away from both engine and exhaust heat; and its trunk position maximizes the trunk space. It has a rigid mount that's very secure, yet it can be easily detached if needed by its spring loaded quick releases. This is limited by the physical space in the Z3.
If there’s one mod you should be considering for better forced induction performance, this is it.