This will be my first time using nitrous and I have read a little about it. I do however want to know from someone that actually has used the nitrous on a 350 TPI motor. I have some basice mods, full exhaust, fuel pressure regulator, 58mm throttle body, msd blaster coil, msd super conductor wires, msd blaster coil, msd cap and rotor, ACCEL spark plugs, and a chip. I will be making some adjustments to the tranny, but very little, just gonna throw in a B&M transpak kit, which modifies the valve body a little. plus i have a super trans cooler form B&M.

First the car does have 100,525 miles on it. The motor thow is very strong and i never pound on it. I will only be using 50 shot of nitrous and i go only to 3 events a year with the irocz. I will probably be spraying the most between 4 to 5 runs of a shot of 50. Second is do I have to have a permit to race with nitrous or as long as im on the race track area it doesnt matter. The type of system I have is from THE NITROUS WORKS kit and its a single stage kit, with the throttle plate mount between plennium and throttle body, plus its a dry shot system. The company says this will work with stock components and no need for agressive mods, since this system is made for stock setup. So, im assuming that what I intend to do wont be too bad for the car. I did front and rear suspension mods as well, all done up. I also wanted to know when is the best time to use the nitrous, im thinking above 3,000 rpms and not right off the starting line. This system has a micro switch and is activated by full throttle. Please help me with this cause ill be racing pretty soon, like next week. Thanks for anyone that can help me in answering to the best of their knowledge.

 

Using nitrous is a sickness, when you spray once, you want to spray more!

Get another fuel pump

Don't waste your money on the B&M shift kit, get a trans-go and do it right.

You may have to adjust the timing when you spray.

I have 87000 miles on my car and I have sprayed 7 bottles already.

I have sprayed 75hp shot off the line, but if I go to a 100 or 125 shot I will wait til 2500rpm

have fun!

 

I just needed one more question to be answered. I was wondering about using it on the track, I mean do I need a permit to use this nitrous at the race track. would the tech area ask me that or is it not nessasary to have one. on the street, obviously its illegal but on the race track area just wondering if you need a permit to use it.

 

No need for a permit that I know of.

But you have to pass tech at the track.

You'll need a blow down tube for the n2o bottle

 

what is a blow down tube. the only thing that i got extra for the kit was a bottle blanket, nitrous pressure gauge, and i got a purge valve kit......is the purge valve kit the blow down tube if not, can i get this part at summitracing.com. Thanks again for the help.

 

sorry to steal the thread, but i am spraying, and need to retard the timing. i was thinking about 5 degrees and using 2 degree coldger plugs...i already have 1 degree colder and set at 6 degrees for base timing....i sprayed 160 dry at it and melted the passenger side #2 and #3 plugs...this was the biggest shot i have done, and wantend to keep it, so i was looking and beieve i can get a way with running 5 degrees retard and 2 step colder plugs...but a friend said it will be fine to just disconnect the computer advance plug, but i didnt really want to...also i was wondering what the drivability of the car will be with the 5 degree retard? the car drives to car spots and to the track..thats it..summer weekend car not a DD.....i may even start to put 100 oct in rather than 93...any help would be great thanx

dave

 

whytspeeddevil,
Where is bottle located?

This what it looks like. When the pressure gets too great in your bottle, then the burst disk blows and ALL the n2o in your bottle exits out of the interior(n2o will knock you out!) through the tube and out in to the interior.

 

I wouldn't drive around or run the bottle with the timing connector disconnected. Get your self a timing light and distributor wrench and retard the timing 2* for every 50hp you are spraying to start when you get to the track. Before you leave the track, advance the initial timing back to where you had it. You can leave the timing retarded, but you will loose a little performance when not spraying the bottle.

If you don't want to do the above, then you have to buy a timing retard box which will pull the desired timing when the nitrous solenoid is turned on.

 

well, i only see a swivel gauge adapter and a safety blow-off adapter and caps in summitracing. is that what i need? the bottle will be mounted on the hump in the back, or hatch back area, or side compartment where the spare tire was.

 

mostlikely i will retard it now, i never race w/o nitrous, car is too slow..thanx for the advice

dave

 

OK, i got the blow down tube for my specific kit which is the nitrous works kit. Now that i got that, the purge kit, the bottle blanket, and the nitrous gauge. I still dont have a clue on where to mount this bottle???? The only safe place that i thought of was where the spare tire was, and im hoping that the 10lb. bottle will fit there. Plus I need to know where to drill a hole to let the stuff blow outside and do i need extra braided line?? I really dont want to kill myself, I just want to have a little fun but safely. I really appreciate the help man!!!!

 

fits perfectly in spare tire part, i dont have ablow down tube but u could drill it in the bottom on the tire mount......and run the line through the molding on interior..
dave

 

Here is an idea on where to mount the bottle. Not the best picture though.

 

And where to mount the brackets, as well as the blow down tube. You can clamp a hose to the end of the tube, so its long enough to go through a hole at the bottom of the spare well. I cut a notch in my panel, then I used some vacuum line to tidy it up. Ive found this way easier than building a platform in the well.

 

Now, I have not used my N2O, in quite a while. I've been having fun with the engine, and tuning eproms. I used this MSD timing box. You just insert a pill, and you can pull 2,4,6,8, degrees, or whatever you want, out of the engine. I have this box wired so it will only retard the timing when 12 volts are put to the solenoids. When I am ready to use the N2O again, I will just program a custom eprom for it instead.

 

This is my 4th gen, but I have it the same way in my 3rd gen (it’s slightly easier because the 4th gen mounts an amp and other BS back there where there is nothing in the way on a 3rd gen), and yes, a 15lb bottle fits fine with the trim panels reinstalled.

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BTW, bottle heaters are not legal at the track

 

Sorry im not a big fan of the dry kit, I only run a wet set up, but if you just shooting a 50kit to it I dont think I would worry about changing the plugs to a cooler range. And if you put some 104 oct in it, make sure its the kind that will not mess up any of your sensors, I would not even pull timing out. If you do that I would even think about shooting 75 to it, just set you snap swith up to turn it on at about 3000 rpm and enjoy. I have been running Nitrous for about 20 years now and have never had a problem, as long as you take the precautions and dont get crazy. Good luck and let us know how it does.

 

Bottle heaters are not legal at the track? Any confirmation of this (i.e., is this just a local rule or pretty common everywhere)?

 

I thought bottle heaters were only illegal with out some kind of pressure or temperature shutoff switch. My Local track has never said a word about my bottle heater.

and bandit what do you use to boost fuel with that 160 dry shot sounds like you got out lucky with only melting plugs.

 

In the first post you are saying you have a performance chip as part of your bolt ons. I have heard about some problems with running a performance chip and nitrous at the same time because the chip is designed to advance timing where the nitrous needs reatrded timing. It something I would look at before spraying.

 

Yeah - from everything I've heard you either need the non-leaded 104 octane stuff or you need to retard the timing 2 degrees at WOT for every 50HP of NOS you add.

 

If you are only spraying a 50hp shot don't worry about retarding the timing or the colder plugs. Just a warning you are not really going to notice the 50hp shot, maybe slightly right off the line but thats probably it. i started out just like you, I went with a 50 then 75 then 100 then 150. The bug will bite you. just be carefull and watch the fuel. I would recomend a new pump just to be safe. My 305 loved the 150 shot. I was cutting 1.7 60' times and 13.10 1/4 mile passes. There is nothing like making 4th gen LT1 camaros cry when you tell them it is a stock 305.

 

I second that, a 50 shot will be a waste of nitrous. I started with a .041 .026 jet combo and it shaved off maybe 2 to 3 tenths, not worth it. Stepped up to the NOS recommended 70 jet and WOW whole new car! The motor I had came out of a junkyard Formula 350 and had 140,000 showing on the odometer, I've sprayed bottle after bottle through it and not had a problem yet *knock on wood*. I would take out the chip and go back to the stock prom, not take out any timing and do a 90 shot as a baseline, as others have said the bug will soon bite you, before I went any higher I would step up to a Walbro 255lph pump (in tank or inline). I know that Edgewater sports park in Ohio requires you to have a fire extinguisher in the vehicle if you run nitrous but I didn't have mine the last few times I went and ran it with no problems.