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bassfx
 Post subject: My Nitrous Dyno graph problem
PostPosted: Sat Jun 04, 2011 12:13 pm 
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Hi Guys!

I've done a 40hp wet shot of nitrous on my fiesta ST but there seems to be a problem on top end.
The car has got Induction, full 50mm to 57mm exhaust and 200hp spec cams. the fuel line was T pieced to the fuel solinoid and I'm running .028 Nitrous and .020 fuel jet.

I thought Nitrous Amps the torque but based on the graph the torque dips after 5200rpm... and without Nitrous it dips after 5800rpm... this cant be right? Can it?

Should dip at the same rpm right?"

What do you guys think?


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BMW840
 Post subject: Re: My Nitrous Dyno graph problem
PostPosted: Sat Jun 04, 2011 12:48 pm 
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I'm confused as to the jets you've quoted .028 Nitrous and .020 fuel jet.
On Fuel injection I would have expected to see 50 Nitrous and 20 or 25 Fuel,
these are the numbers stamped on the side of the jets, was this a typo?

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bassfx
 Post subject: Re: My Nitrous Dyno graph problem
PostPosted: Sat Jun 04, 2011 1:08 pm 
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Yeah its not a typo...

Yeah they where stamped like that... 0.28N and 0.20F

I swaped them around (.020N and 0.28F )and when I used it the car bogged soo bad it was like I was hitting the breaks....
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Noswizard
 Post subject: Re: My Nitrous Dyno graph problem
PostPosted: Sat Jun 04, 2011 1:12 pm 
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Those are jet sizes for a US kit Richard and as a consequence ANY result is possible, for all the reasons given for using a WON system.

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BMW840
 Post subject: Re: My Nitrous Dyno graph problem
PostPosted: Sat Jun 04, 2011 1:19 pm 
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Sorry mate, my knowledge only extends to Wizards systems, so now I understand.
Its bogging because its too rich and I suspect its the same reason for the odd dyno results.
But I cannot advise you on jets as I have no knowledge of the US system.
FYI this forum is owned by Wizards of Nitrous.

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Richard Thompson
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bassfx
 Post subject: Re: My Nitrous Dyno graph problem
PostPosted: Sat Jun 04, 2011 2:21 pm 
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Ohh... I thought you guys work with the US measurements....

its 71N 50F 40hp
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BMW840
 Post subject: Re: My Nitrous Dyno graph problem
PostPosted: Sat Jun 04, 2011 3:02 pm 
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bassfx wrote:
Ohh... I thought you guys work with the US measurements....
its 71N 50F 40hp

Sorry, I cannot advise you about a US kit, I would hate to give the wrong info.

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Richard Thompson
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My 840 is like a hot stripper.
I just keep throwing money at her and hope that someday she will give me the ride of my life
Achieved 10 July 2011
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Grimmjar
 Post subject: Re: My Nitrous Dyno graph problem
PostPosted: Sat Jun 04, 2011 10:10 pm 
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If you compare your dyno sheet to other you´ll see the same curve.
I´d say: It´s all ok.

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