EVO and Eclipse Turbo Parts and Performance

Russ Taylor – EVOX – AEM Meth Injection – Failsafe Test

Using the Tephra Mod V-1 ECU mod, we used an added pressure switch to the AEM Meth injection kit to switch maps. Once the AEM controller switches on the meth pump, pressure builds in the line and closes the switch. The switch activates the second map that is stored in the ECU. This second map pulls fuel and adds timing and boost.

For more info on the Tephra ROM hack and payment info, see here:


We ran a dyno pull with the meth injection off (red line). Then a couple pulls with meth on as normal (green adn blue lines) Then the next three pulls are with Sam in the trunk pulling the fuse for the meth pump in the middle of the run.

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