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Old January 14th 05, 05:58 PM
Sean Trost
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Juan
I believe that N1 is related to the velocity of the airstream
introduced. Which is good. But not related to the ignition problem
Now You have said that you have an excellent spark and good fuel. the
only other thing you need for start is the right airflow. or volumn.
Dont know about your engine specifically but most everything else runs
right around 14 to 1 on the ratio wise.

I can get a HIGH volume low pressure spray gun to flow 10 psi but it
still wont spray anything unless i get the volmume behind it to work
properly. Not that this has anything to do with jet engines or
cumbustion but to illustrate that velocity and volumn are not
interchangable.

Sean


Juan Jimenez wrote:
Yes, the volume is more than enough, as evidenced by N1 reaching close to
15%.

Juan

"Sean Trost" wrote in message
. ..

Juan,
Cooling would take one leg of the combustion triangle out of the picture.
I dare say it would take a large amount of cooling to do so.

I suspect that a more plausable reason would be the fuel air ratio being
outside the LEL.

The manual calles for 145 psi and 1.21 lbs volumn. are you getting the
volumn with the setup you are using ?

all the best.
Sean