nitrous Question

[VRV666]

I think I put up a similar post a while ago but didnt get far.

I have found a nitrous kit with a carby base plate. I was wondering if it would be possible to use a fogger nozzel insted of the base plate so I can run it on my efi car or could I simpily modify the base plate to fit behind my throttle body and all will be good? I am sure that I have heard of this before but want to make sure befor I buy it.

[VT-565]

You should be able to remove the baseplate and replace it with nozzles, i am pretty sure they are the same fittings and the jets also slip in there too.
Is it a wet kit or dry kit? You'll have to fit some sort of microswitch to the throttle linkage so you can only activate the gas at full throttle, with an arming switch also in the cabin. They really arent that hard to use, just providing you have some common sense of which i'm sure. Just keep in mind the extra fuel you will need when the gas is on, if you are only going for 50-100 shot then your stock injectors should be more than capable of supplying with a remap.

[VRV666]

Sweet, thats the type of response I was after. Ill start at a 50 shot and probable head for 100-125 no higher.

[VT-565]

Sweet, thats the type of response I was after. Ill start at a 50 shot and probable head for 100-125 no higher.

Sounds like you have your head on. Most people would lose it and gor for big numbers straight up. Remember, most nitrous kits rate their power referring to gain at the wheels. An extra 50hp from your VN should be enough to get the girl down the strip .5 quicker at least. The reason i asked about the wet or dry state of the kit is that if you have a wet kit, it is easier controlled and you can run more gas without upsizing your injectors, you just have to be able to maintain fuel rail pressure AND provide fuel pressure at the solenoid at the same time.
Have fun and let us know how you go.

[1991_Vn2nV]

What sort of price is NOS to buy? As in refilling the bottles?

[VT-565]

What sort of price is NOS to buy? As in refilling the bottles?

A figure of 5-6 dollars per pound sounds familiar. check with your local BOC outlet

[immortality]

if it's originally a carby plate setup the n the fuel jets will be suited for 5-6psi fuel pressure. if you are intending to run a nozzle setup on a efi engine then you will need to get new fuel jets to suit the higher fuel pressure of an efi system(this is assuming that your using a "wet" setup).

[VRV666]

O.K time for the dumb question, what is the difference between a wet and dry kit? You would think I would know that considering that I have been wanting the stuff for so long

[VRV666]

What sort of price is NOS to buy? As in refilling the bottles?

I could be wrong but for memory it is around the $10-$12 per pound.

[defa]

McDonald brothers racing in thomas town, melbourne saiid it is $15 a pound, i think. might have been 16. a wet kit has two jets. one for fuel and one for NOS. a dry kit just has nos. all i have done is put a t-piece in the fuel line. and a steel braided line to the solenoid.. then another steel braided line to the fogger nossle. being a drag car i don't think you need a micro switch. as you will not be pushing the button unless it is full throttle. before i turboed my car i drilled a hole in the plastic intake tube and put my fogger nossle in there, just before the throttle body. i would go a wet kit as someone on this site said they had good luck with a wet kit and 50 hp nos jet. i will have to find it but there is a site where ya type in what psi your nos and the jet size of the nos jet. then your fuel pressure and it tells you what size fuel jet ya need.
if you can get a carby plate cheap buy it, if it has the solenoids. if not, it is no use to you. braided lines are not cheap. so if you can pick up a cheap feed line and some more cheap 4 -an braided lines and a couple of cheap 3 -an line you will be right. all the fogger nossle i have, take 3 -an lines.. fiting aren't cheap. i spent $140 on fitting for my turbo, water injection and NOS. but i did buy a lot. don't buy them from a racing shop. you can get steel ones cheaper from a hydraulic shop. or they can get you aloy ones., but cost a lot..
all you need for a wet kit is. a bottle of nos, a feed line to your nos solenoid, a nos solenoid, a braided line to your fogger. a fogger nossle, and a jet for your fuel and nos. then like a said the braided lines for the fuel..
then just wire it up with a relay and button. and an arming switch like ecotecmaniac said..
then you could go for an incabin gauge for the nos and an incabin gauge for the fuel..... i think that is about it. i will add more if i think of it..
but yeah. very simple. anyone could set it up.
i ran a 50 hp jet in a dry setup and it was crap. don't bother.. will get you going a little faster but noit much..

[defa]

http://cgi.ebay.com.au/ws/eBayISAPI....MakeTrack=true

[immortality]

as a little safety device, add a fuel pressure switch into the main arming circuit for the NOS, that way if there are ever any fuel pressure issues you won't be melting pistons and blowing engines etc. also an extra fuel filter before the fuel solenoid to prevent fuel blockages there also

[defa]

yeah, a pressure switch woiuld be the go. but i don't see the need for the filter, but it would be a good safety option i spose. can also get nitrous filters too.
nitorus is so easy to hook up. there is nothing to it.

[immortality]

yeah, a pressure switch woiuld be the go. but i don't see the need for the filter, but it would be a good safety option i spose. can also get nitrous filters too.
nitorus is so easy to hook up. there is nothing to it.

no nitrous just makes you slow at the track, no fuel and a blown engine will have people laughing everywhere. fuel problems are a lot more serious the nitrous flow problems. a little money now will save your engine and pocket later. you can also get nitrous filters, most kits actually come with little brass fitting with a fine mesh screen thats fitted before the solenoid(a contaminated seal in a nitrous solenoid can leak causing you to loose your intake manifold when you crank your engine over to start it). i've got the larger NOS line filters as extra security and fuel filters also but i'm shooting for over 250hp nos shots on the V8 so i'm making sure everything is ok whe ni push that button

[cracker]

$140 to fill the smallest bottle they sell nitrous in and $12 a month for bottle hire

[defa]

$140 to fill the smallest bottle they sell nitrous in and $12 a month for bottle hire

is that BOC. they are rip off pricks.. we have trouble with them overcharging us all the time.. it would work out cheaper owning your own bottle and getting it filled

[Cheap6]

I suspect that VRV666 still doesn't have a definite answer to his original Q. Holley/NOS has an online technical information service which would be able to provide an answer, both specific to NOS systems and to other brands. I suspect that substituting a 'Fogger' nozzle and the appropriate jets will work, as the same solenoids, fuel and N2O (there is more than one type of each), are used in both types of systems.

Also, the NOS installation manuals (other brands too) are available as PDF, which would be worth looking at, not least to compare what is in the kit being looked at (to help ID it in the first place) and what would be purchased given a free choice.

[defa]

all i used is solenoids off a fogger plate. i spose i should have said that straight out..

[minux]

lol...its all i can say.

[vt1538]

So defa who set your computer up to run the dry kit & how did you signal the pcm that you were spraying ?

[defa]

i ran a 50 hp jet. i did nothing to the computer. i was told the computer would give the motor enough fuel with just a 50 hp jet. i would not run a dry setup again. wet would be the go. even though it is hooked up on my car it i haven't tested it yet. i still have little bugs to fix with the turbo setup before i go using nos. it was NA when i used the dry setup.
i don't know what you mean by pcm?

[VT-565]

i don't know what you mean by pcm?

Powertrain Control Module.

[vt1538]

i ran a 50 hp jet. i did nothing to the computer. i was told the computer would give the motor enough fuel with just a 50 hp jet. i would not run a dry setup again. wet would be the go. even though it is hooked up on my car it i haven't tested it yet. i still have little bugs to fix with the turbo setup before i go using nos. it was NA when i used the dry setup.
i don't know what you mean by pcm?

It would be interesting to see if the computer added enough fuel with no specific tune as there would only have been a intake temp & pressure variation to adjust it. The fact you said that you couldnt feel a difference tells me that it didnt.

[Dan355]

Lol if your paying more than $110 for a 10 pound bottle your getting ripped off majorly. Sould be $10 per pound with gst. If they dont freeze your bottle before they fill, your getting less than your 10 pound worth. You can squeeze 13 pound in a 10 pound bottle very safely.
Sure you can remap the comp but also take into acount the ignition side of things. Your have to retard your timing by one degree per 10hp by memory. Get yourself a filter, bottle pressure gauge, fuel gauge and a thermatic heat blanket (Pricey). Very easy to change the carby setup to efi. Ill be doing this at one stage.

[defa]

well i could feel that the nos was making more power. i just didn't think it was enough to worry about. then there was someone else on this forum who used a 50 hp wet kit and they said the extra fuel made a big difference. i would say the computer wasn't keeping up, that would be why i wasn't getting much more power.
that is why i was saying to stay away from a dry kit. vrv666 is doing stuff to his car on a budget and i am thinking he doesn't want to do anything to the computer???