DIY Two Step/Anti Lag for turbo/launch control

Goal is to make a two step rev limiter with anti-lag in order to spool the turbo on my truck quickly for launch.

Daniel Johnson

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Description

Using an atemga328p to create a two step/anti-lag/launch control system it will use one port of the atmega to take the inputs to the coils from the ecm and another port to output signal to the coils. this way each individual cylinder can be controlled. One of the timers will measure the time between ignition events from the ECU in order to calculate RPM and will compare it with a analog signal from a potentiometer to limit the rpm at a specific limit. Eventually, more features can be added with the additional pins on the atmega in order to advance or retard timing for things like spooling the turbo faster or controlling nitrous. With the addition of a esp8266 in the future in order to replace the potentiometer with control over WiFi which can be connected to using a phone or laptop.

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1 × atmega328p

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Update using atmega328p instead of attiny85.
Daniel Johnson • 01/24/2017 at 18:50 • 0 comments

a quick update where i talk about why the previous plan would not work and also show the new plan.
Overview of project.
Daniel Johnson • 01/24/2017 at 18:48 • 0 comments

At the time of this video i had a different plan utilizing an attiny85 which would have resulted in erratic spark behavior which could be bad for the engine.