Need help tuning fogger system

[craigmac]

I am new to nitrous and I need some help tuning my fogger system (NOS barnd). I was wanting to use around a 250 hp shot, any sugestions on fuel pressure and jet size? I have made me a flow gauge but don't really know how to use it properly.
Thanks

[max24-7]

24 fuel 28 nos 225 to 250hp or 26 fuel 30 nos 250 to 275hp 900 psi bottle pres. 7 #s fuel flowing

[craigmac]

What size jet do I use to flow the fuel with.Thanks

[max24-7]

68 on the 28 72 on the 30. you can flow both on the 72 if you want its only a starting point and you will have to read the plugs from there.but dont worry it will be a little rich.those hp #s are at the rear wheels.make sure you pull timing and use a cold plug and thighten up the gap

[craigmac]

I have a 2 port regulator for my nitrous system with one line going to one fuel solinoid and the other line to the other fuel solinoid. Do I need to flow one line @ a time or do I need to use a "Y" fitting and flow them together @ 7psi . Should I pull 2 degrees of timing per 50 Hp. Thanks for your help.

[sam sso2077]

You only need to flow it on one side, as the regulator will act as the crossover, and when you flow your fuel, you need an equivelant jet size for your fuel jet, nott he nitrous jets, hence #24's or #26's, what ever that would be.

[max24-7]

those #S are the for the fuel jet i just matched them with the nitrous jet.yes you only have to flow one outlet.timing has a great deal to due with chamber design and quench on the head.compession also plays a larger roll. you can start with 2 per 50 but you have to read the plugs . make sure you have no spots on the plugs and make sure the edges of the strap are not rounding off

[craigmac]

Thanks for the help guys.Craig

[craigmac]

I pulled my jets out of my fogger system today and checked them, they say .030 on both fuel and nitrous jets. I checked them and they are .032 fuel and .035 nitrous. The guy that I got the engine from said that it was around a 260 hp shot on it and not to go by the jet # because he drilled them out. I would like to buy some new jets to replace the drilled one's. I don't even know what size shot this is but i think that I would like to keep around the same size. Does this sound like a good combination size of jets? Any sugestions on what size jets that I sould buy if not. Also what kind of fuel pressure and test jet should I use.
Thanks again.

[max24-7]

31 fuel and 35 nos(i believe nos only makes a 36 not 35) will be a 375-400 shot ,900 psi nos, 7 psi fuel 87 jet to flow it.DO NO RECOMEND THIS POWER LEVEL FOR A BEGINNER. hit the botton and hold on.

[sam sso2077]

it's about 350-400hp. 350 by NOS rating, 400hp by NX rating.

[bboutlaw]

Ha sam it is bobby b from san antonio do you have some ex" jets for the n/x piranha kit 100 200 300 400hp i will pay for some.

[mustang393w]

look at holleys web site, they have a jet chart. holley has all the jets square in their jet chart, which is a rich tune-up but the safest, most every nos tuner i know staggers the jet sizes to lean it out a little. holley list as follows- 24/24=175hp/ 28/28=250hp/ 32/32=300hp

[craigmac]

Thanks for the info.