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Originally Posted by mrx79
Hallo,
i've tried to read the last 27 pages more or less but i'am curious about if there was something like a conclusion about this discussion?
open questions would be:
- is there a difference between pre-compressor and post-intercooler injection?
- is there a difference (i guess it is) in in-cylinder cooling effects on the injection position?
- would it be maybe a benefit to use both types of injections to improve turbo efficiency and have a in-cylinder-cooling effect?
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I am no rocket scientist (only mech eng qualified)
But in cylinder effect (end gas pressure and temperature) will not vary a lot regardless of where you are injecting the fluid for the simple reason that its the conversion from liquid to gas that had the highest heat conversion rate.
In my tests over the years I have always found a net vehicle increase in speed (over numerous test conditions) with pre turbo V's any post turbo inj location. *all of the other locations don't yield a performance increase when other variables are held constant*
and lastly I am sure if you have a very advanced system like made here you can use multiple points of injection and get the best theoretical performance from this.
This is but one response and view though
