nitrous and propane Matt, From what I understand, propane and nitrous work together real well. The way I have always udnerstood nitrous to work (and someone correct me please if I'm wrong) was that under compression and combustion, the nitrogen and oxygen separate, and adds more oxygen into the combustion process (aka chemical supercharging), which is why you also need to add mroe fuel for a nitous shot (to keep the Air/Fuel emulsion ratio near the ideal stoichiometric ratio). also, the nitrogen (from what an old timer at my local race shop says) helps stabilize the fuel air charge and promote more even combustion. The wonderful thing about propane injection is that it adds mroe fuel to the mix... so if you combine the two, you add mroe fuel, AND more oxygen (in the form of nitrous) then you have a nice double-whammy punch going on... I would think you could get away with a combo nitrous/proane injection setup with less fuel system mods than on a nitrous only deal. Also, i would think deisels would take very kindly to nitrous.... you dont really have to worry about detonation so much on them. Hmmm...... this has me thinking.... dualie turbo desiel truck... nitrous... proane.... They already have bullet proof trannies, and with dualie tires, theres be no need to run super wide wheel-well scraping slicks.... I bet you could make some serious fast power stroke deisels. But as my dad (a big fan of the Cummins deisels) used to say "I'd rather be Cummin than Strokin"
Ive been thinking alot about nitrous on my BB Regal Im going to build. I was thinking about usung the stock gas tank and a stage one fuel pump, and then put a fuel cell in the trunk filled with C16 and an electric inline pump for the nitrous. I realize it would be a little extra weight, but its behind the rear axels, so it cant hurt me that much. ________ Herbal vaporizers
I picked up a plate from a friend its the NOS powershot plate I'm looking for what jet sizes to use. also what kind of timing retard are you guys running I've heard anywhere from 1 to 4 degrees per 25hp of nitrous its a 430 with a cam,manifold and headers thanx
ive run through several bottles of nitrous,up to 2 bottles per event and i generally back timing 2 per 50 shot of nitrous. be sure to check sparkplugs when fiddling with nitro and start rich on the fuel side, then gradually lean out, checking the plugs after a full throttle run. this is where i dump my nitrous http://www.4x4iceland.com/tt/pictures.htm
bob, if your looking for hp and economy fuel injection will help you out there, nitrous doesnt help your mpg but wont hurt it either. I agree with you on the money part of things FI is kind of pricey unless you make your own setup, But i would take a few other routes hold off and save a few more dollars and go with FI if you have a daily driver besides Nitrous can be dangerous. You said you have 750hp is that with or without Nitrous?
Adam- Fuel injection isn't gonna buy you much HP compared to a good carb. It will give you more efficiency under other conditions, however, meaning that you can have the equivalent of a consertively tuned 2-bbl carb and the HP of a dominator. I didn't exactly say that I *had* 750HP, I was trying to describe the power output of a "high horsepower motor". I've dynoed my car, and when I correct for drivetrain losses I am about 460HP at the flywheel. I have a nitrous system capable of adding another 450HP, but in reality I will probably never use it to that potential. I might get to the 750HP level someday, depends on how I feel when cranking up the jetting leve. Most of the time on the juice I'm adding about 175HP, so in theory that's about 625HP (on paper, I'm not gonna claim that without going on a dyno). My point is, though, that even for a 625HP motor, you'd have a hard time making it streetable. And when I say streetable, I mean daily driven. I drive my car everywhere- I drive to Cecil County, BG, whatever- the car is very polite and comfortable to drive. And when I get to the track, I can just let her rip! Nitrous can be dangerous if not handled properly. I cracked a cylinder wall in '97, and broke two pistons in '01. But in both cases, it was because of my own stupidty and not because of the nitrous- I didn't handle with care. If you drive a Grand National into the 9's, would you use a stock fuel pump? Of course not, that would be as stupid as what I did. I like to think of it like handling a stick of dynamite or even a handgun- if handled properly, they each can serve a purpose. But if you are stupid (like I was), yes they can cause problems. If you want to keep the small cam route for drivability and milage, but still go for big HP, you will probably have to boost- however both superchargers and turbochargers have some parasitic drag. In the case of the GNs, this is such an efficient motor to begin with that a bit of parasitic HP loss for a turbo is not important. But where most big blocks are happy with 10-12 MPG, adding some parasitic drag can put an even bigger dent in the old pocketbook. Over the past 10 years or so some great improvements have been made to superchargers so that they hardly affect gas mileage- I've seen Rich's photos of the supercharger installation and have been really impressed. I wonder if you could disconnect the belt and drive the car without the extra drag? What about taking a new block, putting a cam like mine into it, then adding a 14PSI supercharger plus a 200HP shot of juice? At the track you could be over 1000 reliable HP, and drive home afterwards. How cool would that be! Of course good luck getting a transmission to hold together, but that's another topic... I guess I'll wrap up my babbling that for now by just saying that for some of us, nitrous is a nice option. And BTW yes, sometimes I'll hit the highway with my nitrous bottle open, and I've never had any car even come close when we start to "get it on"... (frequently even the nitrous is unnecessary, however, unless I'm up against some super hot car like a Viper, Ferrari, etc.). If my car were not economical enough to drive everyday, I'd just sit in my other car thinking "if only I had my fast car, THEN I could beat you". To me, if a car isn't drivable, then you never get to enjoy the fruits of your labor. -Bob Cunningham
I respect your points and opinions and im not knocking people that use nitrous. To each there own and yes im glad everyone doesn't have the same setups on there cars that would be boring, but me personally i wouldn't use a blower unless i was putting out like 1000 hp+ i only plan on using one 4 barrel on my engine. No tunnel rams no superchargers, nitrous, turbochargers or even 2 4's i plan to drive this car a lot and can't afford any kind of economy power at the moment. I agree with you on the new technology with the turbochargers and such there doing some pretty amazing stuff these days but since im getting off the topic when it comes down to it I dont want to have to use nitrous to win a race and just really dont need it for a car i will be driving a lot. When people say that they use there nitrous on the streets to me thats just pretty dumb. If i have nitrous on my car i would never use it on the streets i would only use it at the strip and it would be pretty much pointless to have it if this car is a daily driver, now if i had a car just for the strip and maybe an occasional cruise around the block i might use nitrous but still probably wouldn't. To me people that use nitrous on the street sound like those import street racers and those guys are dumb. 100+ shot of nitrous is a lot of power and that can be dangerous. Plus i dont need any speeding tickets and i really dont want to hurt anyone else on the street. The point is to go as fast as you can, not die trying. So to make a long opinion short i drive my car a lot on the street and dont see nitrous for it in the future, but i understand and respect your opinions and discussing different aspects on cars is part of being a car enthusiast in my book.
