Technical > Spud Miller's Cave

Nozzles in head

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aafa760:
Bruce

Are the Nozzel bodies even the same?
I thought the  down Nozzel did not have the hole in them?
Oil vapor from beeing in the valve cover??

On a NA engine not sure much of advantage

dreracecar:
All nozzles bodies above the blower need airator bleed holes, below the blower you cant have holes in the body.  Sprint cars running down nozzles  have airator holes and are covered with a foam filter to keep dirt out, Primarly because the Hilborn type nozzles run fine mesh screen which can get clogged while the enderle style is a hole with a defector tip to fan/spreed the fuel

wideopen231:
Have 4 or5 sets of both w/hole and w/o.So 8 w/o is no problem.As for fuel rail still would not be problem.First I leave at 5000 stage maybe more. Second not planning on running a typical rail.Two number 4 lines per head feeding two nozzles each.Biggest thing I see as issue is possible condensation of line with alky running thru it and hot oil.

Back to gains.I had thought about this before and kind of dismissed it.Afer doing some reading and talking with a few others who  have run the Rotary  and think some of the gains where nozzle locations , given that good part was also air flow gains.Especially peaked my interest after post on rotary injector.

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