iroc stangs

hi well i have a completly stock 305tpi 87 iroc which run's very nicely and only has 27k miles on the whole car and she runs 100 percent perfect and well she's kinda week on power which is going defintly change and i will be swappin in a iroc 350 stealth ram engine with tons of mods but i dont have that money right now and well i was thinking a nitrous kit would be perfect. its cheap, gives plenty of power, and can be changed to the 350 with no problems. well will my stock engine hold up fine if say a 100hp shot of nitrous is used very little? just maybe every once and a while like every couple months. just so i can keep up with a lt1 atleast. where do i find the kit and how much is it to get filled and to get installed? all i need is a small bottle depends on price how much of a diffrence it is but probaly just a 10lb. how many 100hp shots can i do with a topped off 10lb bottle and how about with a 15lb bottle. also should i get dual platium tipped spark plugs? thanks everyone!

s10irocspikes

A 100 shot is fine on a well running 305. If you can read directions carefully and can turn a wrench and figure out simple wiring, then you can install it yourself. A 10lb. bottle will yeald about 6 passes. Expect to see about a second faster ET. Make sure you run premium fuel, invest in a better coil, and all your ign. componets are in good shape. Spend the extra bucks on a plate system too.

Get a rolling start first if you're running street tires. Wait at least the 60ft mark or you'll blow the tires away. When I first had my kit, I was going through a bottle a week. Have fun. Good luck.

HCR13

iTrader: (5)

I've ran a 125shot on my 305 TPI with no problems. Just take the precautions mentioned above and you'll be fine...

Bullydawg

iTrader: (7)

That is what I would do. I plan on getting a 305 TPI car to build on a budget soon, and I am going to spray it... When the engine goes, then in goes an Ls1. I Want to see how fast a 305 on spray can go.

HCR13

iTrader: (5)

I think there are a few vids online about 305's and the infamous 200shot... and they actually take it...

Imthebriman

iTrader: (1)

I sprayed a 150 shot on my 350tpi it held but I sprayed out of the hole at the track and spun the tires almost the whole way down. I only got one run on it because it got rained out then the track closed a week later.

HCR13

iTrader: (5)

^wow, that sucks...

I only hit it at WOT above 2,500-3k rpms that way I have traction by that point and it hits hard...

Imthebriman

iTrader: (1)

Ofcourse, bald street tires don't help

closer

How much does the NOS itself costs to fill? Also someone locally had told me you have to have a flamable liquids tag on your car to be legal or something... Is that just B/S? And finally where would you get a NOS tank filled at?

s10irocspikes

Just so you know, it's more commonly called nitrous, juice, bottle, spray, gas; not NOS. People won't take you seriously if you do call it that. The whole Fast and Furious lingo doen't fly. Not being a jerk, just looking out. NOS is a brand, Notrous Oxide Systems.

I think the going rate is about $5 a pound, I could be wrong. I was getting it for $30. Most speed shops should have a refill station as well as your local track. I've got it from a compressed gas warehouse before. Like the ones that stocked oxygen, helium, aceteline(sp.). They also stocked nitrous oxide.

I never got one but I think you need a safety certificate to carry spray in your car. Just some B.S. a cop can give you another ticket for. More for safety stating that you know what you're doing (I think).

iroc stangs

wait so how much and where do you get the certificate? i'll just probaly hide it in a box or somethin in the trunk

HCR13

iTrader: (5)

I need to find where s10 got his fills because here the rate is about $40-$50 a bottle. There is a race shop here that fills them. Normally at the track its more expensive than anywhere else... I'd look for a gas warehouse. As far as tags, it would be true IF nitrous oxide was flammable but its not and its not a liquid either, not when it comes out. So neither one of those apply for any special license....

BadBowtie88

This doesn't surprise me actually. My friend has a '92 RS that formerly had the LO3 305 motor. I have never seen a motor take as much abuse as his did over the years. He never sprayed it or anything, but for as much crap as 305's get, that thing was indestructible. They are a much tougher motor than they get credit for. The only reason he took the 305 out was b/c it now has the 355 out of my old '89 IROC. It should be up and running very soon actually.

5literTPIterror

i also sprayed a 150 wet shot on a 305 tpi, with a t-5 and stock exhaust manifolds it went 12.93@108, then i broke the t-5; put a th350 in it and 1 5/8 shorty headers and it went 12.66@106 with a 1.7 60'. it was fun.. i had about 1400 bucks into the whole car and it ran better than most stock C5 corvettes. hahah

s10irocspikes

Like I said, $5 lb.+10lbs.=$50.
I was getting it for $30 from a friend who had a filling station in his basement. He would even freeze the bottle overnight before filling so you can get more liquid and less air.

About the certificate, I never got one but I herd you can ask for one from one of the manufacturers. It could all be B.S.

3rd gen Will

iTrader: (8)

DO NOT RUN PLATINUM PLUGS WITH NITROUS.

Run copper plugs only!

Unless your motor has crap for compression you will be fine on a 100 shot, just make sure you fuel and ignition systems are up to snuff.

The stated rate for nitrous consumption in the instructions for Nitrous Oxide System's kits is a 100 shot uses 1lb of nitrous in 10 seconds of use. When I was running a 100 shot I got about 5-6 good hits out of a 10lb bottle using a heater. Anything after that and the pressure fell of after a few seconds and since I was running a wet kit it went rich and hurt more than it helped. On my LS1 T/A I have a 90 shot, I have a 15lb bottle with a heater and I get about 8-9 really good hits. It's a dry kit so I don't notice the fall off as much, but it is noticable.

BlackZLS1

Wow thats some expensive nitrous. I can get my bottle filled for anywhere from 3 to 3.25 a pound and thats at either of two reputable speed shops in my area.

And about the freezing of the bottles....is that even a good idea? By doing so, are you overfilling the bottle? How much does nitrous weigh in gas form vs. liquid form? I just cant see any actual benefit from that, without overstepping a safety boundary.

closer

Sorry about the "nos" statment. I was on my phone(So i try to keep it short.) I too wondering about the sticker thing. That guy was the only one I ever heard of around here that had problems. I don't have any speed shops around locally. I'll ask around and see how much it costs at the closest track to me. I wonder if a welding/gas shop would carry it? I'll have to call. If you run a nitrous system on our TPI's do you guys run a plate system at the throttle body or tap the runners for spray nozzle's? And on the 305 do you still run the 19lbs injectors?
I'm thinking of going this route this spring. I'd like a supercharger... but I can't afford all the computer work and fuel support for one right now. Do you have to do any support to use nitrous? I was thinking some cars had a plug and play thing. That would richen the fuel-air when running the nitrous. I guess I need to do some shopping around.

1986Firebird350

With 100 shot, it will definetly hold up fine on a stock engine. I know several people here with the same engine (or a 305) that run up to 150 shot and they havent had any problems whatsoever. Just make sure u know what ur doing when u put in the kit.

HighPressure

does any one of you know how many whp a 75 shot will get me on the 305?

I am just rebuilding the motor (roller, rocker, bearings, cams,..) so I think it will end up in a little more hp than it originally had.. but can you give me a hint how much hp / whp it will get me ? .. (oh I got a 4bbl quadrajet)

3rd gen Will

iTrader: (8)

Depends on how the kits rate themselves. NOS kits, to me, seem to be motor numbers not wheel numbers. The jets they say claim are 100, I get about 90 hp to rear wheels on my Manual trans T/A. The same with my old auto 84, the 150 Jets gave me about 125 rwhp, picked up a bit over 200 ft/lbs of tq though.

Friends that have NX and TNT kits the jets are rated at RWHP from what they have told me. I have no personal experience with those kits.

HighPressure

interessting.. ok i got a nos sniper kit with 75 shot..
but 75 should can not be 75 hp .. because on a small honda motor it wont be 75hp, and on a big block it will be more than 75hp I guess.. depends on the motor you are running..

thats why I was asking if anyone has a dyno with the 305 170hp and nitrous..

as soon as my bird has finished (rebuild of motor at the moment) I´ll go for some dyno tests.. I´ll post it (but dont expect it earlier than 2010 :-þ)

thewhitestripes

i have a 305 as well an im thinkin about spraying my car too. i was wondering about the kits you guys are using on your 305's. how much are they, wut the kit comes with, will i need anything else aside from the kit? and awnsers will help a lot. theres a kid wit a fast 240 thats talkin s*&% an i need to put him in his place. hahaha

5literTPIterror

i used a simple nitrous express efi single nozzle kit, a wet kit.

only other thing i did was use two steps colder spark plugs as a saftey against detonation.
oh yea and make sure youve got some good fuel. at leaaaast 93. when spraying a shot at the track i sometimes used 100 octane unleaded.

thewhitestripes

u think this kit would work? http://www.nitrousoutlet.com/catalog...roduct_id=2891

HCR13

iTrader: (5)

I looks like it should work, but I'm not sure why it says its for LSX since I see a fogger and not a plate...I wish they had more details on the kit and its components...

5literTPIterror

yes that will work. you'll have to fab some sort of bracket to place the wide open throttle switch in line with your t.b. linkage, but thats pretty much the same exact kit i ran and had very good luck with it.

just "T" into your high pressure fuel line for the fuel selonoid (or i think this can be done from the fuel rail...)

id reccommend the cooler plugs and some good octane and let 'er rip. good luck

thewhitestripes

ill have to tap into my intake manifold to install the fogger right? ive never installed or seen nitrous in a car, especialy in a tpi so im in uncharted waters right now. any adivce will help. thanks!
p.s. i didnt mean to steal your thread but it seems like were doing the same thing an i didnt think that my questions were worth starting a new thread over.

5literTPIterror

not into the intake manifold, just the air intaske tube, like before the throttle body..

i have a pic, dont mind the shitty looking engine bay, it was a $1200 car witha used nitrous kit. oh yea and it went 12.66 with a 120K miles on a 305ci...

w/ a t5 and stock exhaust manifolds, it went 13.20 at 106 on a 100 shot and 12.93 at 108 on a 150 shot

and with a th350 and shorty 1 5/8" headers it went 12.66 at 106 w/ a 1.7X 60'.

(off the bottle it ran 14.60 @ 94...)

thewhitestripes

sweet!! thanks dude that really helps a lot. i ordered that kit i showed you a few days earlier but i didnt get here yet. im sure ill have a few more questions an your advice is like pricless. ill keep ya posted. (an its goin in a 305 with 220,000 miles HAHAHAH. good thing im gettin a new 350 in may. it should hold till then............. i hope. haha

5literTPIterror

make sure you put some drag radials or slicks on it, the torque is pretty overwhelming for street tires...

what trans do you have?

Imthebriman

iTrader: (1)

If you still have the stock rear end and it has never been rebuilt, you are gonna wanna be really careful throwing sticky tires on there as they will add more stress and potentially snap something. Not always the case, but it happens. Just my .

thewhitestripes

its a stock trans. im not sure of the exact name but its a manuel 5 speed. once i get more money im upgrading the rear end so ill just take it easy untill then. and yea ive heard horror storys of things breaking when u throw slicks on with a stock trans/rear end. ive got bald street tires though so im gunna have to get somthing better than those. once i get everything hooked up ill see how bad it is an just go from there.

5literTPIterror

its obviously far from the best scenario (stock trans and rear) but i made quite a few passes on the stock rear. i had a 9-bolt, not that it was anystronger the the gm 10 bolt....
the 5 speed i did end up breaking but that was doiing some retarded 3rd gear power-brake burnouts.... i was like 18....

when i raced it at the track on nitrous with the 5 speed i left practically off idle and would just quickly, smoothly roll into it to WOT and the nitrous would engage... i aslo granny shifted the car really bad. ....on purpose. like push the clutch allll the way in, let off the gas, shift then flooor it... trust me the trans isnt gonna live through the "speed shifting" routine with nitrous.
and it will make a drastic amount of torque over what your used to so it will still move out faster than youd think.

good luck

thewhitestripes

yea i hear ya. i baby my car too but im doing a complete over haul in may so im just lookin to have a little fun on the 305 befor i get rid of her. an im barely gunna use the spray til in get my new engine anyway but i wanted to add more power an still be able to transfer it to the 350. thats whjy i dont want to do any real engine work to the 305. (i already did exhaust.) an if something breaks than ill just have to fix it i guess untill may. haha im sure ill have a good story as to why u shouldnt get spray on a stock set up. But im really gunna try an take it easy, an its a strong running 305 too. i havent had any problems since i got her 2 years ago. an ive done compression tests, changed the plugs an wires, distributer cap, belts ect. all the rutine maintnence. and i only use super when i fill her up. its really gunna be a "learn as i go" kinda thing im sure but well see. p.s. im 17 right now. lol. but i dont want u think my car is all hacked up an im gettin spray just because..... i did my research enough. (i hope, haha) and my irocs one of the nicest ones ive ever seen in person. i should show u some pics so u kno what im workin with.

5literTPIterror

sweet well i hope it works out for ya. you'll be shocked how fast that little 305 is on spray

thewhitestripes

well it came today so its time for the install. i read over the instrucitons an it actualy seems fairly simple. im a little worried about my spark plugs though. about a year ago i bought the e3 plugs that are advertised on this website. now there good plugs but im not sure if there platinum or not. another thing is my fuel pressure. i got it checked out by a mechanic an he said its fine but idk wut "fine" is an i got different nozzles depending on my fuel pressure. im sure these questions sound dumb but im just trying to be cuasous yanno? and if you could send me a pic of your T.B. linkage up close tpiterror, so i could see how you fabricated the wot switch that would be great. again, thanks alot for your help!!

5literTPIterror

i dont have any pics of it close up, i found this pic.... someone else;s car.. not exactly how i did mine but itll work as long as the linkage hits and triggers the micro switch.

(i had mine on the other side of the linkage so the linkage came up into it at w.o.t.)


http://images.google.com/imgres?imgu...n%26safe%3Doff

thewhitestripes

alright well everythings all wired up/ installed. all i gotta do now is throw some lock tight on the fittings and buy the adapter for my fuel pressure checking nozzle. (im using that instead of "T"-ing into my fuel line.) and fill the bottle!! i cant wait, ill post some pics of my setup when i get a chance. i put the WOT switch in a completly different place too, but those pics still helped a lot. btw, if anyone knows where to get one of those adapters for the fuel pressure checking nozzle that would help alot. ive been looking around but i guess ill have to search as little harder. if u dont know exactly what im talking about let me know and ill try to explain it a little better. (it sounds a little confusing because i dont kno the proper terms for things, lol)

t_long927

It is not a flammable liquids sticker. Nitrous oxide is NOT FLAMMABLE!!!! it is a catalyst which makes fires burn faster. The sticker is a Compressed gas sticker and it comes in NOS kits. I don't know about any other kit like Python, edlebrock, etc. I would not put the sticker on though. My states don't allow the system to be hooked up while on the street. And that sticker is a dead give away. Last time I had a 10lbs bottle filled it was $50 and another shop charges $60. NOS has a refill hotline at 1-800-997-3345 and they will let you know where your local refill/dealer is. One other thing a 10LBS bottle will last you about 3 minutes off straight open shot. Consider the fact that you will only have it open a few seconds. And like the other guys said I would only recommend to shoot it after second to ensure you are above 2,000rpms and so you don't lose traction.

3rd gen Will

iTrader: (8)

3 minutes? what are you running a 25hp shot? Right in the paper work it states that a 100hp shot uses 1lb of nitrous in 10 seconds. Since you only get about 5 good full hits out of a 10lb bottle, and thats with a bottle heater, anything after the 5th hit and bottle pressure drops quickly.

You only loose traction if your car isn't set up for it. I used to grab a 150 hit of the jug out of the hole in my 84 camaro. No traction problems on ET Streets @ 18psi.