Longterm review: NOS

[Django]

Will it help if I type slowwwweeeeeeeerrrrrrrrrrrrrrrrr.

It's a cumalitive process. The FI system generates greater cylinder pressures on the power stroke. The Nitrous adds to those already greater cylinder pressures.

I guess I should add that.............

Never mind, here is an example.

For the sake of arguement, and they are nice even numbers, let's say that the stock cylinder pressure is 1000 whatevers. Now, 1000 is just a number, not an actual cylinder pressure.

Okay, both the FI and Nitrous system increase the power stroke by 20%.

So the FI system by itself raises the cylinder pressure to 1200 whatevers. The Nitrous will not raise it by another 200 whatevers. It will raise it by 20% of the 1200, so your final cylinder pressure will be 1440 whatevers.

Did that help?

The essence of the question is whether our lower ends will withstand those 1440 whatevers or not.....

D

 

[nycstev]

Yes and it also helps If you can visualize those HoT FlowIng gases and liquiids

 

[Silverback]

But is the crank capable of handling 1440 whatevers?:dontknow:

Whats the the threshold?

Sorry Roz, that is one I cannot answer.

The one thing I can say in regard to that is this.

Everything that is subjected to higher than stock loads will fail from fatigue sooner than it would fail from the stock loads.

We have all bent the credit card, or piece of plastic until it broke right? Okay, if you only bend it back and forth 30 degrees, it will take a while before it fails. If you bend it back on it's self (read higher loads) over and over it will fail quicker.

The engineers that design engines components engineer them for a designed load and lifetime. When we exceed those loads, we are running the risk of shorting the life of those components.

 

[Roz]

Sorry Roz, that is one I cannot answer.

The one thing I can say in regard to that is this.

Everything that is subjected to higher than stock loads will fail from fatigue sooner than it would fail from the stock loads.

We have all bent the credit card, or piece of plastic until it broke right? Okay, if you only bend it back and forth 30 degrees, it will take a while before it fails. If you bend it back on it's self (read higher loads) over and over it will fail quicker.

The engineers that design engines components engineer them for a designed load and lifetime. When we exceed those loads, we are running the risk of shorting the life of those components.

That makes sense. That I understood. Thanks for taking the "engineering" POV.

 

[RedSrt007]

Correct on everything silverback said, and If Im not mistaken, Tim you are not running methanol either? So the addition of nitrous will help in bringing cylinder temps down thus helping with possible detonation.

I would run 75-100 with the Paxton and data-log the heck out of it Im always leaning on the side of 'caution' even if it costs me a few HP numbers. Run another stage cooler plug, 50-75 shot, rpm window switch, fuel pressure safety switch, bottle warmer to keep the psi @ 1050 for the right a/f mixture, and a blast!

Our trucks will handle (from what ive seen), over 800 on the bottom ends (rwhp). Its the pistons and rods that are the concern

-Red

 

[nycstev]

Sorry Roz, that is one I cannot answer.

The one thing I can say in regard to that is this.

Everything that is subjected to higher than stock loads will fail from fatigue sooner than it would fail from the stock loads.

We have all bent the credit card, or piece of plastic until it broke right? Okay, if you only bend it back and forth 30 degrees, it will take a while before it fails. If you bend it back on it's self (read higher loads) over and over it will fail quicker.

The engineers that design engines components engineer them for a designed load and lifetime. When we exceed those loads, we are running the risk of shorting the life of those components.

Amen.

Its like if you played lots of football and lifted wieghts when you were 18 you run the risk of getting arthritis when your 50!

 

[Silverback]

Amen.

Its like if you played lots of football and lifted wieghts when you were 18 you run the risk of getting arthritis when your 50!

Yep, sadly I can say that's true also.

 

[Roz]

What about alcohol consumption and my liver? :dontknow:

 

[nycstev]

What about alcohol consumption and my liver? :dontknow:

Jimi.. Just follow the 12 steps and you'll be fine

 

[Roz]

Jimi.. Just follow the 12 steps and you'll be fine

I just tried step 1) Admitting to having a problem and failed miserably!


Back on topic. Think there is any under-engineering. Knowing folks will throw a power adder on a stock engine. . . ?

 

[Brat]

What about alcohol consumption and my liver? :dontknow:

you have no liver anymore.

 

[Silverback]

What about alcohol consumption and my liver? :dontknow:

Tried Liver once. Didn't like it.

Alcohol?:dontknow: Liked it. Liked it a lot.

 

[Roz]

you have no liver anymore.

Oh well. Cheers!!!

 

[Nowwhat]

Hey D....just got home....missed this thread....

To nos or not to nos....that is the question...

1) it is a track only item....are you going to run at the track?

2) if you want another 100 rwhp....let's get you the sealed ram air, elbow, meth and a tune...figure 690 rwhp...

3) The juice hits hard....I use a controller that "ramps" the shot in....taking some of the stress of the driveline...that system costs as much as a paxton....

4) if you go nos....you need...slicks, calipers and gauges...it is a slippery slope....

5) now to answer your q....the motor can handle a 100 shot....as long as you NEVER have detonation (pinging)..
that means a wet shot...propane or a seperate fuel cell...

 

[Roz]

Tried Liver once. Didn't like it.

Alcohol?:dontknow: Liked it. Liked it a lot.

Did you try it with hot sauce? The liver, not the beer. . . !

 

[nycstev]

I just tried step 1) Admitting to having a problem and failed miserably!


Back on topic. Think there is any under-engineering. Knowing folks will throw a power adder on a stock engine. . . ?

Engineering is a specific science. Things are designed with a purpose. With
a factor of safety and a more importantly a COST FACTOR. If all structures were designed to withstand the 100 year storm they probably wouldn't be affordable. Similarly with these engines.

 

[HOT RAM]

How about on a naturally aspirated engine ? What would be fairly safe ? Would you need a wet system or would a dry system be safe ?

 

[Roz]

Engineering is a specific science. Things are designed with a purpose. With
a factor of safety and a more importantly a COST FACTOR. If all structures were designed to withstand the 100 year storm they probably wouldn't be affordable. Similarly with these engines.

True true.

 

[Brat]

Did you try it with hot sauce? The liver, not the beer. . . !

how about with some fava beans and a nice ciantia.:rock:

 

[Roz]

Beans bean, the musical fruit. The more you fart the better you feel, so eat those beans with every meal!