silverTA

what do u all think about the Nitrous Express Pro Shark Kit ..i think its come with 4 solenoids, 8 nozzles and installation hardware. for 1060$.
i think its come with hard lines 2.

do u all think i need to go with this or the NXL

thanx

CustomN2O

I run the pro shark kit on my race car, and its great. Whether you get it or the NXL, really depends on what you want to do. If you are only planning on running around a 150 shot, then the NXL would be good. If you are planning on really pumping some nitrous through the motor, like 200+, then the pro shark is defineately the way to go. Give me a call and I can explain the differences to you.
Scott
925-998-1517

DERTY

Keep in mind the Piranha Nozzles use a 1/16 NPT thread and the Pro Sharks use a 1/8 NPT thread. The standard LS1 and LS6 intakes are difficult to tap for the larger NPT size. You do not get very many threads. The same kit with the Piranha nozzles will do you just as good.

As it stands today the NXL kit is a nice unit. It should fit rather easy and is pretty much plug and play. The nozzle style direct port kits have more potential, but are more difficult to install. It took me a couple days to get mine all finished up. I tried it the hardline way but opted to use -3 PTFE Aeroquip lines instead. I'm glad I did that too.

You'll probably get a 50/50 opinion out of this as far as NXL vs Piranha/Shark. For smaller shots, 200 or less, both are probably going to work fine. For anything over 200 the fastest cars are predominantly running full direct ports for one reason or another. I'm not sure how NX sizes their solenoids on the NXL but you can get larger solenoids for 300+ on a regular direct port.

maddboost

iTrader: (11)

If your gonna spray over 200 hp I would go with a Piarhana setup. Thats what im getting. And a few people with LS1s have gone in the 9s with that kit which is good up to 500 hp. I dont think anybody has sprayed bigger than a 300 shot on a LS1. While the shark kit can go up to 1000hp much more than you will ever use.

DERTY

Be careful about the up to 500 HP statement. That's a false assumption. The solenoids that ship with the standard 80001 and 90001 (I think those are the part numbers) are only good up to 300 HP. After that they start to choke, the orifices are too small. You would need solenoid upgrades to the next size up. The part number kits are marked very well as to the shot size that they support. Usually that is determined by the jet kit that is supplied with the kit.

maddboost

iTrader: (11)

Nice to know that NX is full of crap on there kit claims. If you upgrade to the soleniods that are good up to 500 hp are they no good at lower settings like below 300 hp?

DERTY

Yes, the larger solenoids will work with the smaller sizes. It's basically just a gate to allow flow across the jets. However, if you imagine a determined amount of flow passing through a gate, then through 8 jets you just need to make sure that the gate allows for more flow then the 8 jets combined. The standard noids are good to about 250ish. At 300 they will work but not as great as the next size up. There are some wierd physics going on in there, but you probably get the idea.

CustomN2O

If you buy the piranha direct port kit, it will come with 1 .125 orifice nitrous solenoid. This solenoid will flow more then enough to cover 500hp. The smaller nozzles will be the limiter in anything over 500hp. I have used those kits many times, and guarantee you wont want to spray anything more then 300hp, but the kit will support it. And thats RWHP. A standard stage 6 solenoid, which comes in all Fuel injected single nozzle kits, is a .90 orifice solenoid, which will flow enough to support 300hp.