atomization enhancement
Greg Hermann
bearbvd at sni.net
Sun May 2 03:06:49 GMT 1999
> >Caterpillar has carried this to extremes and
>> >has some diesel engines running ungodly high pressures....I don't know
>> >the exact figures.
>
>On our International it's 2,800-3,200 PSI. But, this is diesel.
>
>> > I propose changing out the injectors on my vehicle with injectors
>> >rated for lower flow, and raising the pressure to compensate.
>> >Pressure would be adjusted in "open loop" mode using an exhaust
>> >analyzer. It has been said that most injectors are rated at pressures
>> >far above what they are operated at.
>> > I'm sure this is far from an original idea, and that some of you
>> >have done it..... How much difference does it make, and what about
>> >pump load at the higher pressures..... how much increase in pressure
>> >is required.
>> > I'd like to hear about peoples experiences and mishaps doing this
>>
>> Most injectors will go to 80 maybe 100 PSI differential tops across them
>> before they will either stick fully open or stick fully closed.
>
>Some of the disc type completely lock closed at as low as 90, the pintle
>"seem" OK to 110, or so. Again this are reported numbers, but the 90 and
>disc was from a reputable source.
>Grumpy
Some custom (efi, not diesel) injectors are running 200--300 psi delta.
Formula car apps. and such. $ 600 or so apiece.
Greg
>
>> ===========================================================
>> David Cooley N5XMT Internet: N5XMT at bellsouth.net
>> Packet: N5XMT at KQ4LO.#INT.NC.USA.NA T.A.P.R. Member #7068
>> Sponges grow in the ocean... Wonder how deep it would be if they
>didn't?!
>> ===========================================================
>>
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