How does the MAF compensate for the dry shot?
I don't see the nozzle, or maybe it just doesn't stick up and point towards the MAF like a NOS nozzle would.
Homeslice's nozzle points so that it blasts the N2O directly on the wires.
He runs a stock non-recalibrated MAF and stock injectors.
Yes I'm sure you had to make a very significant adjustment for 60 lb injectors.
Homeslice's nozzle points so that it blasts the N2O directly on the wires.
He runs a stock non-recalibrated MAF and stock injectors.
Yes I'm sure you had to make a very significant adjustment for 60 lb injectors.
It shoots straight up about 2 inches in front of the maf, therefore under full throttle as its shooting up its getting sucked into the motor just as fast. Therefore in my theory at least, it is a perfect mist of n20 passing through the maf and giving a perfect reading to the computer. Yes I had to scale the ifr table accordingly for the injectors, but what im saying is IF the maf was maxed out it would be putting 60+ lbs an hour worth of fuel into the motor and its definately not doing that. Like I said, it maintains a perfect afr spray or not.
It doesnt not max your injectors out. It will hold them steady at whatever pulsewidth its at, unless you fuel it more via pe table or such. maxing the maf (how everyone on ls1tech uses it) means that youve reached the upper limit of the software tables intepretation of the signal frequency relayed in Hertz
All I'm saying is I have maintained a steady afr throughout the wide range of different shots when on or off the bottle. From 75-200 shot I have never had my afr go pig rich as is described in this thread.
Originally Posted by TripleBlackRamAirT/A
It shoots straight up about 2 inches in front of the maf, therefore under full throttle as its shooting up its getting sucked into the motor just as fast. Therefore in my theory at least, it is a perfect mist of n20 passing through the maf and giving a perfect reading to the computer.
When liquid N2O changes state to a gas, it absorbs a tremendous amount of energy LOCALLY as this happens. N2O in the gas state also absorbs energy, but not nearly at the same rate, and over a much wider area.
As was stated, maxing the MAF doesn't necessarily max the injectors. The final pulse-width is the result of several factors... MAF output being one one of the major factors in the load calculation. There are also several corrections applied after this calculation.
Understood. I didnt think anyone actually sprayed directly onto the wires, it was a misunderstanding on my part. As for the injectors, I realized that shortly after i typed it, i just never fixed it. Could someone please tell me why one would spray directly onto the wires because I don't understand the rhyme or reason for doing it this way. I don't see it as the intent of it and defeats the purpose of the maf if yu ask me.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
On The Tree
Joined: Jan 2004
Posts: 171
Likes: 0
From: Swansea, IL
Originally Posted by GrannySShifting
It doesnt not max your injectors out. It will hold them steady at whatever pulsewidth its at, unless you fuel it more via pe table or such. maxing the maf (how everyone on ls1tech uses it) means that youve reached the upper limit of the software tables intepretation of the signal frequency relayed in Hertz
My guess would be it goes to the highest load cell and sits there. Whatever the fueling situation is at that cell as influenced by the other inputs is what you get.
On The Tree
Joined: Jan 2004
Posts: 171
Likes: 0
From: Swansea, IL
Originally Posted by TripleBlackRamAirT/A
Understood. I didnt think anyone actually sprayed directly onto the wires, it was a misunderstanding on my part. As for the injectors, I realized that shortly after i typed it, i just never fixed it. Could someone please tell me why one would spray directly onto the wires because I don't understand the rhyme or reason for doing it this way. I don't see it as the intent of it and defeats the purpose of the maf if yu ask me.
In normal situations the MAF makes corrections in order to strive to achieve what it determines to be the best AFR given its limited programming designed for atmospheric conditions (~20% O2). The Nitrous is 33% O2 and never makes any flow adjustments for anything. You can't make the nitrous adjust to conditions so you have to dumb down the car so it plays ball with the Nitrous.
I guess, but you guys are spraying 200 at 10.xx afr and I spray 200 at 12.xx afr so in theory my afr should run a little stronger. The maf on my car at least does a damn good job at fueling correctly so why trick it into running pig rich? Thats tking away performance if you ask me. Im not bashing by any means, jjust trying to understand the reasoning behind it.
Wayne I think we should add a second nozzle/jet/solenoid like we were talking about before if keep running pump gas/drag radials
Add a .040 jet and it would be what Chuck was running should be another 60 to the wheels. Plus it may give you more time to shift to second
.050 jet another 95 to the wheels, be about 10 hp to wheels less then what some of these crazy fools are spraying
Add a .040 jet and it would be what Chuck was running should be another 60 to the wheels. Plus it may give you more time to shift to second
.050 jet another 95 to the wheels, be about 10 hp to wheels less then what some of these crazy fools are spraying
Originally Posted by GrannySShifting
Wayne I think we should add a second nozzle/jet/solenoid like we were talking about before if keep running pump gas/drag radials
Add a .040 jet and it would be what Chuck was running should be another 60 to the wheels. Plus it may give you more time to shift to second .050 jet another 95 to the wheels, be about 10 hp to wheels less then what some of these crazy fools are spraying
Add a .040 jet and it would be what Chuck was running should be another 60 to the wheels. Plus it may give you more time to shift to second
.050 jet another 95 to the wheels, be about 10 hp to wheels less then what some of these crazy fools are spraying 
As for the second part .... I aint skeerd
On The Tree
Joined: Jan 2004
Posts: 171
Likes: 0
From: Swansea, IL
Originally Posted by TripleBlackRamAirT/A
I guess, but you guys are spraying 200 at 10.xx afr and I spray 200 at 12.xx afr so in theory my afr should run a little stronger. The maf on my car at least does a damn good job at fueling correctly so why trick it into running pig rich? Thats tking away performance if you ask me. Im not bashing by any means, jjust trying to understand the reasoning behind it.
Originally Posted by Homeslice (tm)
My point in all this was to say that if you are interested in putting as much power as possible through your car to the ground on the bottle that my way is a cheaper, safer and more reliable way than the traditional route, even for some pretty large shots.
Cheaper how?
It doesn't cost any less than running it the way I do, does it?
Safer how?
Running extremely rich can be just as destructive as running extremely lean.
More reliable how?
With 900+ psi aimed directly at the little filaments they could easily break. Would this not force the car into sd mode? It is the same effect as unplugging the maf, isnt it? That would be reallllyyyyy bad.
On The Tree
Joined: Jan 2004
Posts: 171
Likes: 0
From: Swansea, IL
Originally Posted by TripleBlackRamAirT/A
Cheaper how?
It doesn't cost any less than running it the way I do, does it?
Safer how?
Running extremely rich can be just as destructive as running extremely lean.
More reliable how?
With 900+ psi aimed directly at the little filaments they could easily break. Would this not force the car into sd mode? It is the same effect as unplugging the maf, isnt it? That would be reallllyyyyy bad.
It doesn't cost any less than running it the way I do, does it?
Safer how?
Running extremely rich can be just as destructive as running extremely lean.
More reliable how?
With 900+ psi aimed directly at the little filaments they could easily break. Would this not force the car into sd mode? It is the same effect as unplugging the maf, isnt it? That would be reallllyyyyy bad.
Safer: This was aimed at the wet guys primarily. If my fuel source goes **** up I don't go lean, I stall because no fuel is going in. If a wet system loses one fuel system or the other your engine goes pop fi you don't happen to cath it during the run. I was running rich, that's why I upped the shot, to lean out the AFR. Are you suggesting that you would cut fuel out so you could get by with a smaller shot? Racing isn't about going half as fast as you can.
More reliable: I always know how much fuel is going in. Do you? I run a stock MAF from 1998... don'tcha think it'd broke by now if it was going to??? Either way I know people who run everyday in SD mode with no maf. Their stuff is faster than mine.
Ok, I have about the same in my system-400 for the n20 setup, no cam, head work, converter, cutout, etc. My car also has a raceweght of 3860lbs being a vert WS6, so I'd hope you can squeak a better time out of yours than mine being as it probably weighs 500lbs+ less.
I'm right there with you on the dry being a safer system I totally agree, hence the reason I too run a dry setup.
"I run a stock MAF from 1998... don'tcha think it'd broke by now if it was going to???"-Umm, things do break, just because it hasn't broken yet doesn't mean it wont. There is more of a chance of it breaking with 900psi of n20 spraying directly on it then there is with it being used as designed. I can spray my way the same amount as you do your way, only difference is my way is ALWAYS a decent afr. Yours only is with a unknown amount of nitrous that is yet to be found out. As for SD mode, That is how I run mine on a daily basis and that has nothing to do with what I was saying. What I was saying was-If you are spraying and it breaks the element in the maf, the car will go into sd mode. When in sd mode, It has no idea there is nitrous going into the motor which means an instant 20:1+ afr which equals-BOOM.
I'm right there with you on the dry being a safer system I totally agree, hence the reason I too run a dry setup.
"I run a stock MAF from 1998... don'tcha think it'd broke by now if it was going to???"-Umm, things do break, just because it hasn't broken yet doesn't mean it wont. There is more of a chance of it breaking with 900psi of n20 spraying directly on it then there is with it being used as designed. I can spray my way the same amount as you do your way, only difference is my way is ALWAYS a decent afr. Yours only is with a unknown amount of nitrous that is yet to be found out. As for SD mode, That is how I run mine on a daily basis and that has nothing to do with what I was saying. What I was saying was-If you are spraying and it breaks the element in the maf, the car will go into sd mode. When in sd mode, It has no idea there is nitrous going into the motor which means an instant 20:1+ afr which equals-BOOM.