Which step for avoiding detonation on 87?

rotrex · #1 10-06-2019, 07:53 AM

All water injection that actually does something, i.e. provides a high enough water to fuel ratio, needs a retune.
Without adapted ignition timing, it will actually reduce power.

You could add a FMIC spray as an alternative. This won’t require a retune.
Flexfuel is also a good choice.

Dust · #2 11-06-2019, 02:33 PM

Quote:

Originally Posted by rotrex

All water injection that actually does something, i.e. provides a high enough water to fuel ratio, needs a retune.
Without adapted ignition timing, it will actually reduce power.

You could add a FMIC spray as an alternative. This won’t require a retune.
Flexfuel is also a good choice.

FMIC is behind AC condenser. That is why people have problems with knock. I guess I could cool the AC condenser.

View Poll Results: Which would you choose?
Mix 87 and 93 depending on the season, and live with timing pull.	0	0%
Spend $900 on a flexfuel kit with tune, and mix 87 and E85 depending on the season.	0	0%
Install 4 0.3mm check valve jets in intake manifold. Activate at 50-75% of max boost. Run 87.	1	100.00%
Install pre-turbo nozzle. Run 87.	0	0%
Install bigger FMIC. Run 87.	0	0%
Multiple Choice Poll. Voters: 1. You may not vote on this poll