No puddling with LS2 Intake.
#41
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Originally Posted by redrumss
Wrong on this..... I have a LS2 setup... 90mm TB yes.. 400.00 Nick Williams and the only other thing is new injector orings... I think 9.00 from SDPC..
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Originally Posted by white2001s10
That much fuel doesn't stay in suspension at the high pressure seen in an intake plenum at WOT.
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#43
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Egads, what a thread full of crap... Let me make this simple...
Q: Why does a wet kit blow my intake to smithereens when I spray a 200 shot at 1500 RPM?
A: Because you don't have the intake velocity necessary to consume the amount of fuel+oxidizer where you want the **** to ignite -- the combustion chamber. I don't give a crap if you put a 12cc plenum or a 150,000cc plenum on the motor -- if you stack it full of a fuel (atomized gasoline in our example) and the oxygen to burn it, leave it there, and then ignite it, its going to go "bang"
This is not a question of "puddling" (pure bullshit)... Puddling fuel with a wet kit and blowing your intake is NOT POSSIBLE. Its not a problem with fuel dropping out of suspension, because LIQUID FUEL IS NOT EXPLOSIVE. Want proof? Take a big metal container and put a few gallons of gas in it. Go somewhere safe where you won't kill yourself or burn your house down. Throw a match on it. What happens, are you still alive? Did it blow a crater in your head? NO! Because gas is not explosive IN LIQUID FORM. So, that means only one thing -- if your intake blew up, the fuel was in suspension.
Kinda kills that whole "puddling" crap now doesn't it?
Now, why does a properly setup and properly utilized wet kit not blow the intake up? Simple - the engine is moving enough air to consume what's being delivered through the intake. That's the purpose of not activating the kit until you have sufficient RPM to make use of it.
Also, those posts about carbed cars backfiring -- a lean condition will generate a LOT more backfires than a rich condition ever will.
Q: Why does a wet kit blow my intake to smithereens when I spray a 200 shot at 1500 RPM?
A: Because you don't have the intake velocity necessary to consume the amount of fuel+oxidizer where you want the **** to ignite -- the combustion chamber. I don't give a crap if you put a 12cc plenum or a 150,000cc plenum on the motor -- if you stack it full of a fuel (atomized gasoline in our example) and the oxygen to burn it, leave it there, and then ignite it, its going to go "bang"
![Icon Lol](https://ls1tech.com/forums/images/smilies2/icon_lol.gif)
![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
Now, why does a properly setup and properly utilized wet kit not blow the intake up? Simple - the engine is moving enough air to consume what's being delivered through the intake. That's the purpose of not activating the kit until you have sufficient RPM to make use of it.
Also, those posts about carbed cars backfiring -- a lean condition will generate a LOT more backfires than a rich condition ever will.
![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
#45
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Originally Posted by Brains
Egads, what a thread full of crap... Let me make this simple...
Q: Why does a wet kit blow my intake to smithereens when I spray a 200 shot at 1500 RPM?
A: Because you don't have the intake velocity necessary to consume the amount of fuel+oxidizer where you want the **** to ignite -- the combustion chamber. I don't give a crap if you put a 12cc plenum or a 150,000cc plenum on the motor -- if you stack it full of a fuel (atomized gasoline in our example) and the oxygen to burn it, leave it there, and then ignite it, its going to go "bang"
This is not a question of "puddling" (pure bullshit)... Puddling fuel with a wet kit and blowing your intake is NOT POSSIBLE. Its not a problem with fuel dropping out of suspension, because LIQUID FUEL IS NOT EXPLOSIVE. Want proof? Take a big metal container and put a few gallons of gas in it. Go somewhere safe where you won't kill yourself or burn your house down. Throw a match on it. What happens, are you still alive? Did it blow a crater in your head? NO! Because gas is not explosive IN LIQUID FORM. So, that means only one thing -- if your intake blew up, the fuel was in suspension.
Kinda kills that whole "puddling" crap now doesn't it?
Now, why does a properly setup and properly utilized wet kit not blow the intake up? Simple - the engine is moving enough air to consume what's being delivered through the intake. That's the purpose of not activating the kit until you have sufficient RPM to make use of it.
Also, those posts about carbed cars backfiring -- a lean condition will generate a LOT more backfires than a rich condition ever will.![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
Q: Why does a wet kit blow my intake to smithereens when I spray a 200 shot at 1500 RPM?
A: Because you don't have the intake velocity necessary to consume the amount of fuel+oxidizer where you want the **** to ignite -- the combustion chamber. I don't give a crap if you put a 12cc plenum or a 150,000cc plenum on the motor -- if you stack it full of a fuel (atomized gasoline in our example) and the oxygen to burn it, leave it there, and then ignite it, its going to go "bang"
![Icon Lol](https://ls1tech.com/forums/images/smilies2/icon_lol.gif)
![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
Now, why does a properly setup and properly utilized wet kit not blow the intake up? Simple - the engine is moving enough air to consume what's being delivered through the intake. That's the purpose of not activating the kit until you have sufficient RPM to make use of it.
Also, those posts about carbed cars backfiring -- a lean condition will generate a LOT more backfires than a rich condition ever will.
![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
Someone should do test on one of these manifolds and prove/disprove the puddling issue, once and for all.
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Robert
#47
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Originally Posted by Robert56
Here's a classic example of how liquid fuel feeds a vapor explosion.
Z06 Wet Backfire
Z06 Wet Backfire
Dave
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Okay, by your theory this should be a recipe for disaster
What about spraying the nitrous kit while leaving the bottle valve closed? That should, by the reasoning presented in this thread, be the end of the intake manifold as we know it. But alas, that hasn't **EVER** happened to me, and I've done it both intentionally and accidentally. In fact, when I was testing a couple nitrous kits (both NXL direct port and a single nozzle kit) on my Formula, I did it no less than 5 times in a row at IDLE (800 RPM) while taking video of the underhood fuel pressure gauge. Amazingly enough, my intake manifold is still in one piece, as is my face and my camera.
So, there goes the fuel puddling argument again, wouldn't you say?
What would it take to prove or disprove these arguments, once and for all? I have a spare intake manifold I'd be perfectly happy to sacrifice.
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What would it take to prove or disprove these arguments, once and for all? I have a spare intake manifold I'd be perfectly happy to sacrifice.
#49
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Unfortintly the only way to prove anything would be to make a clear intake.You would have to run it on the motor so that everything is the same.
No company or person is going to foot the money on something like this.So it will just be a good enternet arguement that will be brought up over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over again. LOL
Dave
No company or person is going to foot the money on something like this.So it will just be a good enternet arguement that will be brought up over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over again. LOL
Dave
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Originally Posted by Nitro Dave's Nitrous Outlet
Robert that is more of a Example of someone not running a system properly.From what I hear this guy bypassed his window switch.The car bogged and Boom.Im gusessing that it must have busted a fuel line or something to go up in flames like it did.
Dave
Dave
#53
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Originally Posted by Brains
Okay, by your theory this should be a recipe for disaster
What about spraying the nitrous kit while leaving the bottle valve closed? That should, by the reasoning presented in this thread, be the end of the intake manifold as we know it. But alas, that hasn't **EVER** happened to me, and I've done it both intentionally and accidentally. In fact, when I was testing a couple nitrous kits (both NXL direct port and a single nozzle kit) on my Formula, I did it no less than 5 times in a row at IDLE (800 RPM) while taking video of the underhood fuel pressure gauge. Amazingly enough, my intake manifold is still in one piece, as is my face and my camera.
So, there goes the fuel puddling argument again, wouldn't you say?
What would it take to prove or disprove these arguments, once and for all? I have a spare intake manifold I'd be perfectly happy to sacrifice.
![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
What would it take to prove or disprove these arguments, once and for all? I have a spare intake manifold I'd be perfectly happy to sacrifice.
Robert
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Originally Posted by Robert56
Yes, it can be a recipe for disaster. Try that with the wrong cam and you will certainly get your ignition source. Just because it has happened to you, doesn't mean it will not happen. Look at the Z06 video again, something ignited the fuel in the manifold. If the fuel was not present it would not have been an explosion. Granted this usually happens because of end user error. I am not trying to dissaude anyone from wet kits, but rather putting info out for all to see.
Robert
Robert
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The biggest problem I have seen with any wet kit is fuel noid failure which happens quite often causing a LEAN condition. With a dry kit anything that lessons fuel ratio, (fuel filter, injector, MAF) can all cause a LEAN condition resulting in catastrophic failure.
Next try this experiment: While smoking a cigarette have someone add a little pure O2 and watch your nose fly off like a cruise missle bound for Sadaams palace.
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PS. The fire after a nitrous explosion has nothing to do with what caused the actual explosion. As I have suggested try spraying a dry 150 shot below 1500rpms...
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Last edited by cantdrv65; 07-18-2005 at 07:04 AM.
#55
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Originally Posted by Robert56
Yes, it can be a recipe for disaster. Try that with the wrong cam and you will certainly get your ignition source. Just because it has happened to you, doesn't mean it will not happen. Look at the Z06 video again, something ignited the fuel in the manifold. If the fuel was not present it would not have been an explosion. Granted this usually happens because of end user error. I am not trying to dissaude anyone from wet kits, but rather putting info out for all to see.
Robert
Robert
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You may be trying to put information out here, but its incorrect info I'm afraid. Some of us have, for years, done what you say will cause disaster and never suffered any ill effects. We know what causes a nitrous backfire, and we do what is necessary to avoid one. The nitrous kit vendors have given us the tools to make the chances of disaster all but non existant, unless the user intentionally defeats one of those devices (like the Z/06 guy). Having a wet kit or a dry kit really makes no difference (in damage potential, anyway) at all, as long it is used properly and tuned properly.
You can pretty much hear what happened with the Z/06 -- and the folks who were at Great Lakes Dragaway (my old home track, BTW) confirmed it. He defeated the window switch, and possibly also left the traction control on. Since the WOT switch was hooked to the pedal, and the vette has a fly-by-wire throttle (trac. ctrl. would close the throttle), and the fact the RPM's bogged HARD because of this combo, it set him up for a backfire. When the backfire blew up the intake, it very likely lifted the fuel rails -- which is now a very nice source of a TON of fuel to ignite on the hot headers or possibly even from the residual explosion of the intake.
Everyone seems to have strong opinions on this topic, but it appears the biggest nay sayers have never tried what they preach. I've never seen any empirical evidence that someone blew their car up with a properly installed, tuned, and operated nitrous kit. EVERY SINGLE TIME I've been able to find the cause, and usually the user knew too
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#57
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Originally Posted by Brains
Is a 238/240 @ .050, 298 intake at .006 I think, .605/.609 lift on a 112 big enough for you?
It hasn't happened to me, and it hasn't happened to literally thousands of other folks. ...and it NEVER blows up.
...and the fact the RPM's bogged HARD because of this combo, it set him up for a backfire. When the backfire blew up the intake, it very likely lifted the fuel rails -- which is now a very nice source of a TON of fuel to ignite on the hot headers or possibly even from the residual explosion of the intake.
![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
...and the fact the RPM's bogged HARD because of this combo, it set him up for a backfire. When the backfire blew up the intake, it very likely lifted the fuel rails -- which is now a very nice source of a TON of fuel to ignite on the hot headers or possibly even from the residual explosion of the intake.
![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
Robert