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Engine Specific Info and Questions => IDI Engine => Topic started by: Benjamin on October 24, 2006, 01:43:11 pm

Title: air feul ratio
Post by: Benjamin on October 24, 2006, 01:43:11 pm

i know this is a real stupid question  :oops:

is there a kind of feul ratio with a diesel?
or the most efficient EGT?

I just bought a eco diesel -it got a NA pump but it got a turbo-
it feels like the car is a little little bit more faster when the turbo 'kicks' in.
Maybe its just in my head...  :lol:

Greetz, Benjamin

Title: air feul ratio
Post by: jtanguay on October 24, 2006, 01:59:10 pm

probably the main reason that the vehicle is faster when turbo is spooled, is because of reduced back pressure and more air feeding the motor.  you would definitely see a big power increase if you increased the fueling, but more smoke when not boosting :(

0 egt would be nice... motor would be 100% thermally efficient :)  i think natural gas has the most potential for 0 egt :)

Title: air feul ratio
Post by: Benjamin on October 24, 2006, 02:20:01 pm

Quote

The simple fact is that at full fuel the fuel will burn more completely with the added air in there.

More power with the same feul...
is this a (kind of) air feul ratio or not?

Greetz, Benjamin

Title: air feul ratio
Post by: burn_your_money on October 24, 2006, 02:43:26 pm

Quote from: Benjamin

More power with the same feul...
is this a (kind of) air feul ratio or not?

Greetz, Benjamin

Yes, because more of that fuel is being allowed to be burned due to the additional air in the cylinders