Since there has been some discussion about this lately on another thread I'm curious to see what people think.

 

So should NOS be included in power figures for the dyno board?

I dont think it should.

 

The dyno should be run on what the engine can put out and not by what you can get by injecting a liquid into it!

I dont think it should.

 

The dyno should be run on what the engine can put out and not by what you can get by injecting a liquid into it!

 

Like hi octain race fuel/ Shell optimax etc? sorry just being devils advocate.

 

I think its a viable figure with nos no different to adding higher octain fuels and using active mapping and valve contol systems.

 

just my thought and no I dont have Nos

 

Allan

Thing is you take NOS out you take out racing fuel as well IMO... im not bothered as mine will be evil both ways and I can dyno it both ways as well. But IMO its a mod like any other, you pay for it set it up and it gives an increase in performance. If you have not done it right or cut corners looking for a quick gain you run the risk of destroying your engine.

 

Dynos both ways might be the answer?

I dont think it should.

 

The dyno should be run on what the engine can put out and not by what you can get by injecting a liquid into it!

 

What do you call petrol then? :lol:

 

It's just another fuel. The question doesn't make any sense at all. I'm also using water injection so that's three liquids I'm using to make it go.

Edited January 17, 201015 yr by bobgenie
addition

What do you call petrol then? :lol:

 

It's just another fuel. The question doesn't make any sense at all. I'm also using water injection so that's three liquids I'm using to make it go.

 

Water injection doesn't give you 100 bhp though! Question is simple enough I think?

 

I think it is like using performance enhancing drugs in sport, a boost only when you need it and it's not runnng all the time so shouldn't count.

Edited January 17, 201015 yr by Anthonyd

Yes it should be included. It is after all part of a mod on the engine performance just like bigger turbos or adding anything else to the engine. it may only be a part time performance mod(not something you use all time) but its still part of what power your engine can make when required.

What do you call petrol then?

 

Exactly, Nuff said:tt2:

i dont think it should be included, its not a mod that is constantly in use, it really takes away the effort that is put into building a good engine, someone could go and put 300bhp of nos into a car and have nearly 600bhp with no other supporting mods (engine wouldnt last long though)

silly thread! bhp on a dyno is bhp on a dyno.. no matter what mods you have

EXACTLY!!!!! ive had Honda drivers telling me that in there opinion having a turbo/supercharger is kind of cheating because its not NATURALY aspirated power, its power caused by forced induction, NOS? turbo/supercharger? all ways of increasing power by modifying induction manor and temp, as long as your method of achieving your desired gains is safe and reliable then i dont see why it would matter how you got there and of course the power should be counted as the cars producing it!

silly thread! bhp on a dyno is bhp on a dyno.. no matter what mods you have

for me i would stat both figures with and without NOS, as IMO NOS is cheating

i dont think it should be included, its not a mod that is constantly in use, it really takes away the effort that is put into building a good engine, someone could go and put 300bhp of nos into a car and have nearly 600bhp with no other supporting mods (engine wouldnt last long though)

 

i dont think your arguement about not constantly in use stands up.

lots of peak dyno figures are obtained on engines where the boost is turned up beyond everyday use levels. No different then to using Nos part time.

Using NOS doesnt detract from good engine building. you cant run NOS without a properly built engine.

Doubling the power of a stock engine from 300 to 600 just by putting a bottle of NOS in the car is the stuff of comic books not reality.

The 'with Nos' figures dont particularly interest me personally, I would want to see with and without Dyno numbers from a car with Nos, and in fact thats typically what you do see from Nos fitted cars.

for me i would stat both figures with and without NOS, as IMO NOS is cheating

 

If nos is cheating then so is high octane fuel, bigger turbos, cooling the intercoolers, etc etc.

 

But stating power outputs with and without NOS is a good way to do it.

However the most powerful engine is the one that makes the best figure on a dyno. End of.

How you get an engine to produce the figures is irrelevant.

LOL! Who cares?! Quote what ever you want if your engine has been dynoed!

 

Its like saying dont quote peak power as how many times do you use full throttle :tt2:

 

At the end of the day when your in front cos you used NOS its no good the other person saying "well, he didnt really win cos he used NOS" :rofl:

 

Oh - & NOS is not a fuel, it is simply a way of getting a more oxygen rich fill in the cylinder to burn the same petrol thats in your tank! A bit like turbos really ;)

 

Dynos both ways might be the answer?

 

This would seem to be the most practical way of solving this. You would be able to see what power the car/s push without nos, and then for those lucky enough to have it, we would be able to see what they can get with nos.

 

2 leader boards....

If nos is cheating then so is high octane fuel, bigger turbos, cooling the intercoolers, etc etc.

 

But stating power outputs with and without NOS is a good way to do it.

However the most powerful engine is the one that makes the best figure on a dyno. End of.

How you get an engine to produce the figures is irrelevant.

 

Let's be absolutely clear how nitrous oxide works - all it does is temporarily add more oxygen to aid additional fuel combustion and hence more power. Do this to a poorly built engine and you will be picking your valves out of the ceiling before long so the associated engineering needs to be faultless.

 

The act of adding more oxygen (as has already been mentioned by others in this thread) is no different to adding free flow air intakes enlarged turbos or any other form of forced induction. You are still just trying to get more oxygen into the combustion chamber.

 

I also totally agree with the previous comment about people running increased boost pressures for dyno runs - if you are going for a max BHP figure then you will bang your boost controller up to what ever you feel your engine can cope with for the run. If someone else has built a stronger engine that can also handle running nitrous then good for them.

 

Whilst offering tables for "with" and "without" nitrous dyno runs would be interesting the viability and performance of NOS enhanced engines cannot be ignored from either a performance or engineering standpoint. It is a performance enhancing mod and a particularly potent one. Most people have neither the time, skill or finances to build a "stable" NOS enhanced engine and for those people who do - more power to ya! (litterally)

 

This is a completely vialble mod and absolutely should be allowed - I feel a bit of the green eyed monster amongst those who would say otherwise.:thumbup::thumbup::thumbup:

 

Stop being so petty - MAX BHP IS MAX BHP

Cyrus

 

I read your post and have to say it seems to be spot on the money, for my build spec I worked backwards. I wanted to run NOS so then went and had an engine built spec wise right from the start to run it, with the correct cams, valves, rods, pistons etc. I then bought a twin plate carbon clutch to hold the boost and the NOS.

 

It is what it is a powerful mod for a powerful engine. I dont think in any way it would detract performance wise from ALL the work and upgrades that have gone into the build to run it. If someone wants to go and stick NOS on a stock engine then fair play they have got the BHP however you look at it even if it destroys the engine?.

 

Lets face it, its a great mod if done right but a risky one if done wrong.

Cyrus - I read your post and have to say it seems to be spot on the money

 

Thanks Madmax - I can't wait to see your zed running in anger!!!!

:punk::clap::clap:

If nos is cheating then so is high octane fuel, bigger turbos, cooling the intercoolers, etc etc.

 

But stating power outputs with and without NOS is a good way to do it.

However the most powerful engine is the one that makes the best figure on a dyno. End of.

How you get an engine to produce the figures is irrelevant.

 

I did say IMO pete. the thing is bigger tubs etc last longer than the minuite NOS does. you cant put turbos on anything without alot of work, NOS has been used as a quick cheap way of getting big BHP jumps. i dont see a problem with NOS when its a monster build with NOS bolted on, if this was me i would always quote both figures

yes it should be included. It is after all part of a mod on the engine performance just like bigger turbos or adding anything else to the engine. It may only be a part time performance mod(not something you use all time) but its still part of what power your engine can make when required.

 

+1