Quote:

---

Quote:

---

With Nitrous you effectively can put in as much oxygen as you want.

---

Same as a naturally aspirated motor...you can pump as much oxygen as you want if you keep going bigger and adding more cylinder head and camshaft....

Quote:

---

You need both, but the fuel is the unit that can be measured to determine how much energy can be produced.

Scott

---

Nitrous is MEASURED in LBS/hour....and you MEASURE air flow into a naturally aspirated motor with a turbine...

Air flow is EVERYTHING or you could do as I already mentioned and just keep adding more and more fuel, but as everyone knows, making a motor "rich" hurts power...

---

My understanding of NOS from some guys that have used it and learned it, like some of the good guys on here, it is easier to hurt the motor (burn the pistons up) with to much gasoline than with to little (to rich) OP, try the jetting I sent you at 5 lbs of fuel pressure and then go up two jets sizes on both the NOS and gasoline until you get the results you want, use a retracted gap spark plug and 34 degrees at or under 100 HP 30 degrees after that until 150 HP and then use 26 degrees actual at or above 5000 RPM when your close to two hundred HP added on

Quote:

---

Yes you need oxygen to burn anything.

---

Quote:

---

My understanding of NOS from some guys that have used it and learned it, like some of the good guys on here, it is easier to hurt the motor (burn the pistons up) with to much gasoline than with to little (to rich) OP, try the jetting I sent you at 5 lbs of fuel pressure and then go up two jets sizes on both the NOS and gasoline until you get the results you want, use a retracted gap spark plug and 34 degrees at or under 100 HP 30 degrees after that until 150 HP and then use 26 degrees actual at or above 5000 RPM when your close to two hundred HP added on

---

Cab, with all due respect, that is TERRIBLE advice... Going up 2 numbers on both nos and fuel gets progressivley richer and richer, which goes against what you just said about a rich condition hurting parts.....and the timing numbers you'd recommended are too high also, IMHO...

Quote:

---

Quote:

---

Yes you need oxygen to burn anything.

---

I knew the answer. Without the oxidizer (n2o) you can't stuff more fuel in the engine.

You introduce "x" amount of oxidizer and need "y' of fuel to garner a certain A/F and power. The issue I have with that software is you keep packing fuel in, it makes more power... which isn't always the result. If more fuel was the key, you wouldn't need the oxidizer. Lean, to a point, is mean.

Look at the jetting recs over the years. The juice kits were horribly rich for 30+ years. We were drilling juice bars in the 80's or stepping down the recommended fuel pressure to get them to run better. According to that software, we (in the 80's) and most current kit producers are going the wrong direction.

Lots of ways to skin a cat.

---

Exactly, Rob... and a couple more points about the nitrous calculators....First, they don't take into consideration how much the solenoids flow and Second, they can't be accurate because it's a fact that just because you go up one jet size it doesn't necessarily mean it'll flow X% more....it just doesn't work that way...anyone that's used a flow bench will tell you that....Having said that, a calculator is fun to play with and when spraying relatively small amounts like 150hp and less you'll probably never hurt anything, but if you use those numbers spraying 300-400HP you WILL burn your motor up, so that again proves that they don't work....

And on the "more than one way to skin a cat" comment....personally I don't believe that....IMHO there's only one way to tune a motor...JUST like a naturally aspirated motor, once you've chosen all the parts the ONLY two things you can change are timing and the A/F ratio...and only ONE combination will make the most power....which boils down to the correct A/F ratio and as little timing as possible AND still make max power....Tuning nitrous is no different.....you pick a nitrous jet....start out with conservative timing....dial in the A/F ratio...then creep timing in....simple...and EXACTLY like tuning a naturally aspirated motor.....

Quote:

---

Thanks Big Squeeze, some real good info in here. Now if I could only get the stupid car to hook.

---

You're welcome....

What's the story on the car and why it's not hooking??

Quote:

---

and a couple more points about the nitrous calculators....First, they don't take into consideration how much the solenoids flow and Second, they can't be accurate because it's a
fact that just because you go up one jet size it doesn't necessarily mean it'll flow X% more....it just doesn't work that way...anyone that's used a flow bench will tell you that....Having said that, a calculator is fun to play with and when spraying relatively small amounts like 150hp and less you'll probably never hurt anything, but if you use those numbers spraying 300-400HP you WILL burn your motor up, so that again proves that they don't work..

---

Quote:

---

Quote:

---

and a couple more points about the nitrous calculators....First, they don't take into consideration how much the solenoids flow and Second, they can't be accurate because it's a
fact that just because you go up one jet size it doesn't necessarily mean it'll flow X% more....it just doesn't work that way...anyone that's used a flow bench will tell you that....Having said that, a calculator is fun to play with and when spraying relatively small amounts like 150hp and less you'll probably never hurt anything, but if you use those numbers spraying 300-400HP you WILL burn your motor up, so that again proves that they don't work..

---

Big Squeeze

2 comments:

Have YOU personally ever used the Nitrous Master program or compared it against any of your "experienced" Nitrous tunes?


And did you know that it was written and calculated using a flow bench and real world experience to come up with the predictions in addition to the mathematics?

I don't really want to turn this thread into a piss'n contest, but I have used this program for 10+ years with very consistent results.

Scott

---

Yes, I did play with it back before I knew very much about nitrous... agreed, I'm not trying to make you or anyone mad... just trying to help...

Like I'd already mentioned, just changing the solenoid affects nitrous and fuel flow, so that calculator CAN'T be correct...

Anyone that understands what's involved in flowing something knows it can't be very accurate...and like I'd already mentioned, figuring hp off fuel is wrong, no two ways about it...and like already mentioned, spraying small amounts I'm sure you'll be fine...

BUT, if you tune the way I've described, you will make more power with the same nitrous jet and it will be trouble free...again, when people throw out what jet numbers to use for a nitrous tuneup, it's just like telling someone what jets to run in their carb...if you're lucky it'll get them close, but it CAN'T be as accurate as tuning it yourself and dialing it in...

I'll bet that you can't find anyone who's used that calculator to spray 200, 300 or 400Hp with "consistent results"...

I tune 2-3 cars/week and do quite a bit of nitrous stuff...I'm not just making this up or repeating what I've read somewhere..

Does what I say not make any sense?

Quote:

---

Quote:

---

Thanks Big Squeeze, some real good info in here. Now if I could only get the stupid car to hook.

---

You're welcome....

What's the story on the car and why it's not hooking??

---

Quote:

---

Quote:

---

Quote:

---

Thanks Big Squeeze, some real good info in here. Now if I could only get the stupid car to hook.

---

You're welcome....

What's the story on the car and why it's not hooking??

---

Caltracs, afco double adjustable shocks all the way around, and 295/65 hoosier drag radials. The car will go 1.41-48 on motor but just blow off the tires on the hit. Edelbrock progressive controller set at 30% with 2 sec ramp on 73/65 jets in speedtech diffuser plate makes smoke show.lol Switching to slicks this year, hope it works out.

---

Quote:

---

Mr. yuck,

My obviously flawed approach to NOS predicts you will need to run a pair of 48 Nos Jets, and a pair of 44 Fuel jets, set fuel pressure at 5.5 lbs for the NOS, and timing at 32-33. If you have a tire that will hook the car, you should run a LOW 10.40 without the Water/meth injection, which I have no experience in.

Your 60ft should be about 1.51 or so to be able to run 10.40 in a car that heavy. Anything slower will effect the ET.

Scott

---

Quote:

---

ps..the earlier explanations were more a trial in symantics...I think those guys where trying to give you a broad explanation.. some guys jumped in..focusing on some goofy aspects

---

Can you explain what you mean by this? just curious what your thoughts are..