NX versus Ny-trex nozzle
this little compare and dyno test is a result of this thread. trying to figure out why ny-trex rates the .062/.033 jetting as 150 motor versus NX rating it at 150 rwhp. ricky made the comment that he bets it has something to do with the nozzle design. so, i took him up on the 'bet'.
green = ny-trex
blue = NX

what i noticed here is the NX nozzle brings the nitrous in further away from where the fuel comes in at. ny-trex brings both in at the same spot. NX nozzle is practically a 90* angle. the ny-trex nozzle spray comes out at a 45* angle.

the NX inlet are .093" openings. the ny-trex are .110" openings.
what size is the ones in your hoses?
PS. I thought a 3AN line is a 3AN line is a 3AN line? No differences....Are you saying you've seen big differences betweem manufacturers braided line IDs?
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Last edited by mrr23; Jan 16, 2006 at 10:43 AM.
Last edited by mrr23; Feb 2, 2006 at 09:47 PM.
Robert
But IMO...as I Have always said...most of the newer designed nozzles will perform within 2-3% of each other. Its the makeup of the entire kit as a whole that is paramount. Any weak link in that equation and the HP #s will suffer as seens here just by switching to a larger noid your gains were excellent.
This is not to say nozzle selection isnt important....because it is. You dont want a cheap nozzle being your weak link just like you dont want cheap hoses or noids.
Mrr23...now we just need you to do a TNT nozzle and maybe a CF and NOS
Robert
what i found neat is how the NX nozzle leaned the mixture out. ken, from ny-trex thinks because both pull out at the same point is why his has a richer mix. we are talking about a half a point here.
ken also explain his idea of once you hit 80% jet to orifice size of the noid, you have maxed the noid out. .063 jet and a .081 orifice netted me 77%. using the .125 noid netted me 52%. which in turn gained me 18.5 rwhp. this is what surprised me to a point. basically, you will never optimally flow the maximum orifice. what some i talked to suggested was as the nitrous is flowing through the noid, it starts closing up due to freezing. seems to be substantiated in this test.
in this case, bigger is better.
now, i'm still not at 150 rwhp as NX kits rates a .062/.033 jetting. i'm still missing 20 rwhp. only thing left, i see, is the bottle valve. or is 11:1 ratio too rich? i made the most power when i was at 12.5:1. being 3 rwhp isn't much, so nozzles between the two are good.
now, if TNT, CF, and NOS want to supply me with some nozzles, then we'll have at it again.
one things for sure, i need to get another large valve for my car. and get my 200 shot to be 200 rwhp and not 136 rwhp.
Last edited by mrr23; Feb 23, 2006 at 07:03 PM.


