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 Post subject: More Nitrous TRASH... vid inside
PostPosted: Mon Jul 04, 2016 1:23 am 
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Wizard
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Look carefully at the Air/Fuel gauge and tell me that the nitrous system is dispersing fuel correctly. :rolleyes:

https://www.youtube.com/watch?v=Clba1qGLhtY

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 Post subject: Re: More Nitrous TRASH... vid inside
PostPosted: Mon Jul 04, 2016 3:28 pm 
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is it because if the numbers jumping so much.... :D

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 Post subject: Re: More Nitrous TRASH... vid inside
PostPosted: Mon Jul 04, 2016 3:38 pm 
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teddybare wrote:
is it the one that said 10.0 at the flame time....


It looks that way, 10.0 is at the seriously rich end.

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 Post subject: Re: More Nitrous TRASH... vid inside
PostPosted: Tue Jul 05, 2016 2:35 am 
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I was mostly referring to the instability that the run had on nitrous. The a/f was bouncing around between 11 flat and (if you spot it carefully) a 12.0, indicating that there was a lack of precision in fuel control on the nitrous' part. Another JUNK kit scoring an F :loser:

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 Post subject: Re: More Nitrous TRASH... vid inside
PostPosted: Tue Jul 05, 2016 1:35 pm 
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teddybare wrote:
is it because if the numbers jumping so much.... :D

Good spotting, Teddy! :yes:

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 Post subject: Re: More Nitrous TRASH... vid inside
PostPosted: Wed Jul 06, 2016 4:45 pm 
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I wouldn't read too much into those AFR readings, as it will only be ONE sensor monitoring EIGHT cylinders, so it will only be an AVERAGE.
It's very unlikely that if the AFR had been in the displayed region on ALL cylinders, that it would have gone bang.

The most important aspect of the video, is that despite the 'INDICATED' AFR being 'acceptable' it STILL WENT BANG and as it was AN AVERAGE, it indicates that at least one cylinder was MASSIVELY LEAN (with at least one or more overly rich to produce that average), which is WHY IT WENT BANG.

Same end analysis but based on a different appraisal of the available information.

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 Post subject: Re: More Nitrous TRASH... vid inside
PostPosted: Wed Jul 06, 2016 7:58 pm 
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Noswizard wrote:
I wouldn't read too much into those AFR readings, as it will only be ONE sensor monitoring EIGHT cylinders, so it will only be an AVERAGE.

That was the point that I was trying to make earlier, it just didn't come out that way LOL

It's very unlikely that if the AFR had been in the displayed region on ALL cylinders, that it would have gone bang.

The most important aspect of the video, is that despite the 'INDICATED' AFR being 'acceptable' it STILL WENT BANG and as it was AN AVERAGE, it indicates that at least one cylinder was MASSIVELY LEAN (with at least one or more overly rich to produce that average), which is WHY IT WENT BANG.

Exactly!

Same end analysis but based on a different appraisal of the available information.

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 Post subject: Re: More Nitrous TRASH... vid inside
PostPosted: Wed Jul 06, 2016 8:52 pm 
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Glad to hear it. :yes:

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 Post subject: Re: More Nitrous TRASH... vid inside
PostPosted: Fri Apr 21, 2017 12:00 am 
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old thread revival I know..... :salute:

I'm surprised no one mentioned the 16.x that flashed up momentarily at launch -- I'm assuming that was when the nitrous was activated - with the "classic" lean hit...


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 Post subject: Re: More Nitrous TRASH... vid inside
PostPosted: Fri Apr 21, 2017 12:23 am 
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fj1289 wrote:
old thread revival I know..... :salute:

I'm surprised no one mentioned the 16.x that flashed up momentarily at launch -- I'm assuming that was when the nitrous was activated - with the "classic" lean hit...


Yes, that's absolutely right. We focused more on the same effect (although the gauge wasn't showing the direct lean ratio because it is an AVERAGE) before the engine grenaded. It proves that not only to generic kits hit badly, but they are CONSISTENTLY bad with sustained use.

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