Re: Opinions on my charge temps/ AFR please
Luke,
When I was tuning my LET it hit peaks of 2 bar with no detonation - on standard compression ratio.
This would be impossible without WI.
The trick was to make sure that everything else worked as it should: injector flows matched, cylinders having similar leakdown figures, that sort of thing.
Then add water mist in a way that all cylinders receive the same under load conditions. You need even distribution of fuel, air and water mist. So nozzle locations become very important.
Charge temps can be deceptive - you see 30C and feel safe, while cyl #3 (or whatever!) is running AFRs 15:1 (and the wideband is showing 12:1, which is an average) :wink:
Precompressor injection works very well too, without it I doubt that my engine would have survived over 1.5 bar for long.
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