Quote:
Originally Posted by Leiffi
I think pre-cat temp was something like 600 degrees, max pressure was reached around max hp rpm, at max torque it was even lower.
What I was thinking is that do these engines have bigger injectors to make 450 hp at that low pressure ? Injector part number is different from other xpi engines. If railpressure is for example doubled, will fueling also double ?
Very potential engine, at 1100 rpm at max stock boost smoke limited torque value is about 3800 Nm, so there's lot of extra air if those calculations are right.
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Can not comment on things you read only know when fuel pressure goes up in the fuel system the holes get smaller. The engine is worming things up and that’s all I can say and there are two parameters indicating this is the case and it sometimes takes some manipulation to get things working. Bit the same way as getting a 750Hp Volvo pulling like mad unloaded as it knows it’s unloaded it limit things.
Model we set is 5100Nm at 1200Rpm 2.8Bar boost pressure.