nitrous nozzle testing

[mrr23]

http://centralfloridastreetcars.com/nozzleshootout.html

[mrr23]

more detailed info up with some graphs.

[mrr23]

almost done. more graphs up. got about 20 more to go.

[mrr23]

all 78 dyno graphs are up now.

[mrr23]

i did some ranking based only on peak numbers. here's what i came up with:

same jetting .062/.033 HP
1. Dynotune 423.21
2. TNT 422.52
3. NX SHO 420.06
4. NX Shark 419.37
5. NX Vortech 418.00
6. Ny-trex 415.83
7. CF Predator 412.42
8. NOS silver 403.87
9. NOS Black 389.31

same jetting .062/.033 TQ
1. TNT 438.60
2. Dynotune 438.15
3. NX SHO 436.20
4. NX Shark 433.96
5. NX Vortech 433.58
6. Ny-trex 433.20
7. CF Predator 429.49
8. NOS Silver 416.86
9. NOS Black 395.30

matching a/f ratio HP
1. NX SHO 424.82
2. TNT 421.74
3. NX Shark 420.56
4. Dynotune 414.20
5. NX Vortech 413.10
6. CF Predator 411.53
7. NOS Silver 409.60
8. Ny-trex 404.79
9. NOS Black 386.84

same a/f ratio TQ
1. NX SHO 442.21
2. TNT 441.79
3. Dynotune 436.16
4. NX Shark 434.23
5. CF Predator 431.08
6. NX Vortech 426.52
7. Ny-trex 422.68
8. NOS Silver 421.58
9. NOS Black 392.80

[mrr23]

one thing i find interesting about this comparison is the dynotune and the NOS silver one. right on dynotune's site it says "Our nozzles have a chrome Finish and function exactly the same as the NOS fogger nozzles."

yet, they performed way differently. i have them in my hand right now. the dynotune has about a 30% larger (i'm guessing right now) orifice in the jet holder. my guess would be that if i was to swap the jet holder, the NOS Silver will perform about the same.

[mrr23]

TOP: NOS Silver
MIDDLE: NX Vortech
BOTTOM: Dynotune

http://centralfloridastreetcars.com/nitroustest/dyno/nosnxdtnozzles.jpg

i need a better camera. you should be able to see how each one gets progressively bigger from top to bottom.

[mrr23]

in talking with ken from ny-trex when he stopped by, he said when the orifice size more closely matches the jet size, you get better results. here's a list comparing what he said to the first ranking list i made:

same jetting .062/.033 HP
1. Dynotune 423.21
2. TNT 422.52 .093
3. NX SHO 420.06 .116
4. NX Shark 419.37 .093
5. NX Vortech 418.00 .063
6. Ny-trex 415.83 .110
7. CF Predator 412.42 .125
8. NOS silver 403.87
9. NOS Black 389.31

i will edit, as i get the info on the nozzles i do not have orifice sizes for.