okay i have a pretty well built 350 but its not enough and i dont have the money to put a pro charger on the damn thing or the know how to make the custom brackets. So i figure turbos are way out of the price range so nitrous is the only real option. I dont want the bottle by the half shafts since i have blown two rear ends as well as two u joints and sent half shafts through both the battery box and the storage one. I dont have room cuz i have a sub behind the seat with six by nine speakers. so were can i mount a ten pound bottle were it wont be in the way!?????? or should i go with two 5lb bottles that can be connected somehow to hide them somewhere

 

Good luck hiding them. There isnt much room in c3s. If there is no room behind the seats, then you could try mounting it inside the spare tire carrier. As far as the concern of wild halfshafts flying around, try buying some safetly loops. I think www.dragvette.com sells them for under 100 for the set. Definately worth the money when you consider having to fix the battery and storage compartments again.

 

lol, you could always Fast and Furious style but the bottle INNN the seat

 

Keep in mind the longer the N20 line you use the more pressure drop you will have in the line. I'm surprised after tearing up your rear end twice with the half shafts you haven't already invested in half shaft loops by Dragvette. I'm purchasing two half shaft loops from Dragvette and putting my bottle in the rear compartment area if I ever leave this crappy desert.

 

The pressure drop shouldnt be a problem. The distance from the tire carrier to the engine is about the same distance as trunk to engine compartment of normal cars.

 

Wouldnt running a dedicated fuel pump help that out a bit?

Also good call on the half shaft loops...you might be inclined to either do a solid rear end from a 78 or so, as opposed to dropping more and more money on the halfs....or if youre partial to the halfs, get some carbon fiber jobbers.

 

I have done some research on installing N2O on my Vette. I still have not found a good answer to how to mount a tank. The tank is supposed to mount with the valve facing forward and up. I planned on installing it inside the spare tire carrier, but the bottle won't be oriented correctly.

Maybe I just need to build a bigger engine?

Jeff

 

The spare tire carrier. I dont have one in right now. You are talking about placing it underneath the gas tank right, were the full size spare use to be.

 

 

hells yes. That will be done with half shaft loops with it. Thanks guys

 

Solid rear end? Every C3 has IRS.

 

 

There ya go, thats what im talking about! Great pic 75 Stingray. 81 Vette, a dedicated fuel pump will not help increase the nitrous pressure. The only thing the extra pump will do is make sure you are getting enough fuel. If there is a problem with nitrous pressure drop, then a few things can be done. A bottle heater is the largest thing, it heats up the bottle which will increase the outlet pressure. If the nitrous line is going to be mounted on areas that collect heat, rubber grommets should be used to ensure the heat doesnt transfer from the area to the line. Lastly make sure the bottle has enough nitrous in it. As the nitrous gets low, so will line pressure and it will also sputter.

 

 

I mounted mine behind the passengers seat with the valve just behind the seat, I could reach over between the seats and easily open the bottle, I never tried to hide it.
I ran the line down the center of the console and through the firewall. Length is not a problem up to the solenoid but from the solenoid to the plate determines how hard it will hit.

 

Plan to, just days after I get home. If this is new information to whoever is reading, Van Steel sells carbon fiber half shafts. These are rated at 1200 horsepower and they weigh 2 lbs less per half shaft then stock 3.5" half shafts. This is good in many ways. They lower the unsprung weight, lower the rotating inertia, lower the transversal inertia, and handle more torque. They cost about $600 pr.
It's recommended you mount the bottle parallel to the direction of acceleration but there are various other ways. You can mount the bottle upside down but make sure you remove the suction tube. You can mount the bottle perpendicular to the direction of acceleration as long as you make sure to move the pickup more to the rear of the bottle. Since I'm taking my spare tire off I think I'll mount to bottles in that area.
The pressure at which N2O boils is a function of its temperature. I believe it's around 800psi at 75 degree F. If the outside air and N20 temperature is 60 degrees the pressure will be lower like around 570psi. This affects your N20 charge and runs the engine richer. A bottle heater brings this temperature to a preset figure. I truly believe a bottle heater is only useful when using N2O on days when the outside temperature falls below the desired temp and on days when you're hitting the juice without giving enough time for the bottle to warm up such would be the case at the drag strip. At the drag strip the bottle won't have time to warm back up on it's own in between passes.

 

Reguarding the heater blanket, many ls1 guys constantly use it to help keep their pressure at 1050.

 

So i can mount a bottle like Jimvette did. That is an awesome setup. Those carbon fiber halfshalfts look awesome. I just got mine heat treated from vette parts. Its suppose to make them tougher. Hopefully good enough for 500 hp.

 

The ujoints usually go before the half shafts do. Better make sure your ujoints are solid.

 

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