Originally Posted by
pa_sjo
I'll spell it out for you..
Yes, the when the flap is fully open you require additional enrichment. So lets say at 1.2 bar of boost you require X amount of enrichment to maintain a wanted AFR.. Then you wind it up to 1.4 bar of boost (on a turbo that is more than happy to supply the air flow) but the AFR doesn't change...
If it was flowing more air, then it would go lean until you added more enrichment..
Let me spell it out for you!!
You said:
"it simply doesn't want to flow much more than about 230hp worth of
air "
You dont mean air at all you mean fuel!!
Your first post is wrong because as you say above here it will quite happily flow more air:
"(on a turbo that is more than happy to supply the air flow)"
but:
"it would go lean until you added more enrichment."
So to clear this up!
The metering head will supply more air than for 230bhp but not any more
FUEL! Anyone wanting to go above that figure will need extra enrichment, like a 5th injector!