Yep, it will work until it pops. With nitrous, it's usually not the block that fails, it's a piston that takes out the block.
360 block limits
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CNC-Dude
Well-Known Member
Many people overlook an adequate fuel delivery system and this often leads to fails. Creating a separate fuel supply for the engine and nitrous can help. Use a mechanical pump to feed the engine and an electric one to feed the nitrous can help. Just verify they each can provide the needed pressure and volume for each....
Did I miss something? The NOS is pressurized. There is no pump for that.
I think he's saying you can run a higher octane in the stand-alone fuel cell for the system to draw from. A lot of guys do this with wet kits.
Nos and fuel have to be delivered by a fuel pump tuned by pressure
Rat Bastid
Dunamis Metron
Thanks for the clarification. Never messed with the stuff. Not even at the dentist office.
I don't have any engines I want to blow up so I will stay away.
Rat Bastid
Dunamis Metron
You’re not one of those guys who thinks you are smarter than Greg Anderson and Jason Line are you?
I‘ve read posts. You’re not.
I'm not offended. At all, actually. But if you think that carburetors are superior in this particular application you're absolutely wrong. And that's a fact.
Go talk to anyone that's building the fastest motors in the 21st century and ask them what they're using. I don't see Noonan, Steve Morris, Anderson advancing their carb depts. And if you think you know more than they do, what are you doing on this website? Go start your own shop
Rat Bastid
Dunamis Metron
I didn’t say any of that. What I said was a fact and you’re sniveling. GTF over it.
If you want I can post a link to a video where Anderson prefers carbs. Line too. And some circle track guy who’s name I can’t think of.
Stop acting like a cry baby. Go start your own shop.
EDIT: just to be clear, your post blamed carburation for distribution issues. I said it’s not the carb’s fault. And that’s a FACT because the carb gives each cylinder what IT wants.
Thats my point. Had nothing to do with carb verses EFI or what was better in what situation. You did that. And one of the wankers from down under.
Don‘t blame a carb for distribution issues.
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This isn't an EFI thread. This is a nitrous thread. And you'd know that if you could read. Just like you'd know I was perfectly okay with you using a carb until you started puffing your chest and pulling an attitude.
You don't know me. How fast I've gone. Or what I do. So you can keep the crybaby and sniveling **** to yourself.
There are different ways to do things. EFI is my way. Carbs are yours. All that matters is who gets to the stripe first.
Rat Bastid
Dunamis Metron
Damn dude, I could say the same to you
I didn’t say switch to a carb. I corrected your bullshit error.
Get over it.
Thanks for the clarification. Never messed with the stuff. Not even at the dentist office.
I never used it either. I just spent 1000’s of dollars to look at it so far.
justinp61
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Please explain this John.
CNC-Dude
Well-Known Member
They make a flow tool to set the fuel pressure so it will provide the correct pressure with the system under load as its spraying fuel....
Honestly I don’t know enough about it to probably explain it right but many guys have a stand alone pump and fuel cell for their nitrous system. Especially guys running alcohol as many spray race fuel for their nitrous side. When I bought my Sledgehammer 700 horsepower system I bought a pressure kit because Steve gives you nitrous and fuel pills and a tuning spreadsheet to get you started. X amount of pressure on the nitrous side at X amount of fuel pressure. With a big pump like I’m using on my heads up car it would have fuel going to a fuel log then regulated after that for the engine and nitrous system. Like I said I’ve never used it or finished plumbing my system so don’t hold that as Gospel.
CNC-Dude
Well-Known Member
The gas for the Nitrous plate/nozzles should be provided by a different source than the source that feeds the carb....
thesiren74
Well-Known Member
A couple local guys run carbs with nitrous and e85 they did drag week a few years ago never had any issues and were running low 8's and 9's it's more of your tuning capabilities with a carb both are good and bad.
Fuel pump has zero to do with the delivery of the nitrous.
Fuel can be regulated by pressure, although, fine tuning using pressure is a PIA. Easier to use the pills to regulate the amount of fuel provided to the system. Is there a desired pressure for tuning, yes. Can a system be tuned with less or more fuel pressure, absolutely. It's a math equation to get the proper ratio of fuel and n2o into the engine.
If a system has a fuel jet equal or larger than the nitrous jet, it's typically a FAT tune. Almost always the fuel jet should be smaller than the nitrous jet.
Fuel can be regulated by pressure, although, fine tuning using pressure is a PIA. Easier to use the pills to regulate the amount of fuel provided to the system. Is there a desired pressure for tuning, yes. Can a system be tuned with less or more fuel pressure, absolutely. It's a math equation to get the proper ratio of fuel and n2o into the engine.
If a system has a fuel jet equal or larger than the nitrous jet, it's typically a FAT tune. Almost always the fuel jet should be smaller than the nitrous jet.
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E85 is awesome. And it's good insurance so long as you're not using winter blend.
I'd be interested to see if their systems were direct port or using a plate. I trust TPI with a carb and using kits that are +500hp. To me, plates can be sketchy above that level. That's just my experience.
There are plenty of guys going 8s with nitrous and a carb. Tons. But I've been doing this long enough to know that big horsepower kills parts. EFI allows the mill to live longer because I'M telling it what I want it to do. I can manipulate almost every function with the touch of a button and data log everything. I can also program it to shutdown in the event of a lean condition or a knock to save itself. Traction and wheelie control. The benefits far outweigh the negatives.
Technology is our friend in this case. It just costs more and there's a learning curve.
TT5.9mag
Two atmospheres are better than one
I’ve run 100hp kits on junkyard ****. I’ve also run a 300 shot on a 4 cylinder bonneville car. The OPs engine will be fine on a 100 shot. The strength of the components is a non issue. 200-250 I’d start to worry about your cast crank. System set up and tuning will be key to making it live. Do NOT run it lean and DO NOT let it detonate. I always suggest (lots of threads here) a dedicated fuel system for the nitrous and some way of pulling timing on the hit. Don’t just pull a few degrees by cranking the distributor. Make sure your off the bottle tune up is tits before you ever hit the button.
Carbs and EFI both have their place with each having benefits and downsides. Jason line and Greg Anderson are two of the smartest dudes racing and both of them prefer carbs because their intake manifolds have design and testing that rivals NASA. The intake has more to do with distribution than what’s on top of it. Carbs pull a lot of heat out of the air charge and there’s lots of power there. On the flip side efi has individual cylinder tuning to combat distribution issues. BUT ask a few of the LS guys how many engines they’ve scattered with NOS because they spray right into their long runner dry manifold, the answer is lots of them. It all comes down to tuning your particular combo and not getting greedy.
Carbs and EFI both have their place with each having benefits and downsides. Jason line and Greg Anderson are two of the smartest dudes racing and both of them prefer carbs because their intake manifolds have design and testing that rivals NASA. The intake has more to do with distribution than what’s on top of it. Carbs pull a lot of heat out of the air charge and there’s lots of power there. On the flip side efi has individual cylinder tuning to combat distribution issues. BUT ask a few of the LS guys how many engines they’ve scattered with NOS because they spray right into their long runner dry manifold, the answer is lots of them. It all comes down to tuning your particular combo and not getting greedy.
justinp61
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Thanks John. The way your post was worded was what made me ask for clarification, "Nos and fuel have to be delivered by a fuel pump tuned by pressure". I have a buddy that ran nitrous heads up cars for years and I knew he didn't have a nitrous pump on the cars. Thought maybe it was a recent development.
frosty_the_punk
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As usual you didn't answer a very simple question directed at you.
There are certain things which EFI can do which a carburetor can't
One of those things is have precision control of fuel metering directly to each individual cylinder.
I would imagine that any conversation where Greg Anderson or Jason Line discuss the virtues of carb over efi would probably be with regard to their respective field of expertise. Pro Stock drag racing. And no, I wouldn't disagree with them.
But I seriously doubt either of them have ever made any specific recommendations in regards to adding a 100 shot of nitrous to a mild street engine which wasn't specifically built for it.
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You talk about all this ability but I see guys giving up on fuel injection or taking it to someone to tune THEIR car. What good is that. Maybe ok for a street cruiser that keeps his hands off stuff but most of us don’t. I’ve never had to have a guy come tune my carb for me and then retune it after I add some more horsepower or a different cam I’ve been itching to try. Ohhh wait I can’t go racing this weekend I have to take my car to the dynojet to get a tune done on it. Lmao.
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