Tuning Aquamist ??

[canicoll]

Hello, I have a 2011 STi and I am installing an an Aquamist system.
Everything is hooked up but I still have some mods to finish before I can run the car.
I am in Mexico City and I don't have a tuner available that knows the system so I will have to make adjustments myself which brings me to my question. How do I know if I need more or less IDC?? What things do I need to look out for?

[Richard L]

Since system flow is based on fuel flow, tuning is relatively simple.

A good starting point is to decide the jets size relative to fuel injector size. This sets the actual ratio between fuel flow and water/methanol flow.

A useful guide line:

1) Work out the total fuel injector capacity
2) Decide on the ratio of water/methanol mix
3) 100% water ...... 10-15% to fuel ratio. or
4) M50/W50 ....... 15-20% to fuel ratio. or
5) 100% methanol ....... 20-25% to fuel ratio.
6) Calculate water/methanol flowrate based on above fuel ratio above
7) Pick the jet or jets sizes to match.
8) Allow 10-20% extra capacity on top of the raw jet flow figures from the user manual.

Once this is done, just use the timmers to increase or decrease the water/methanol flow based on the tune, mild to wild. Of course ambient temperature and fuel quality should also be considered.