How to decrease my lean condition on the initial hit?
#21
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Anyway the line may not be 6' but it is long because of where I mounted my noids. and the leangth of the feed line has nothing to do with my quick lean spike the extra volume actually helps.
BTW the lines that come with the kit are 2'
Can I see your HPtuners and logworks files on a 150 shot, how much shorter is your fuel line vs N20 line?
#22
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LOL no need anytime the car/fuel pump is running the fuel is sitting right at the noid think about it LOL
Anyway the line may not be 6' but it is long because of where I mounted my noids. and the leangth of the feed line has nothing to do with my quick lean spike the extra volume actually helps.
BTW the lines that come with the kit are 2'
Can I see your HPtuners and logworks files on a 150 shot, how much shorter is your fuel line vs N20 line?
Anyway the line may not be 6' but it is long because of where I mounted my noids. and the leangth of the feed line has nothing to do with my quick lean spike the extra volume actually helps.
BTW the lines that come with the kit are 2'
Can I see your HPtuners and logworks files on a 150 shot, how much shorter is your fuel line vs N20 line?
Robert
#23
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You have it wrong, the extra length or volume as you call it actually hurts ya where the lean spike is concerned. I explained this earlier, it takes time for the reg at the tank to sense a need for more fuel, and more time to get it changed. Now if you lengthen the line to the reg you have made matters worse, the travel time has been extended. Fuel line should be as short as possible. here is mine, notice the noid is right on the rail, then the line to the nozzle is as short as can be. try it, you'll like it, lol.
Robert
Robert
Last edited by SY732; 04-30-2008 at 10:27 PM.
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Plugs look good to me and no bad smoke.
But I have fuel rail covers that keep the heat in, I never had a problem with them removed.
I have a 6' feed line from the rail to the fuel noid thought that would be enough extra volume?
How can I test if it is lack of pressure vs length of the lines?
I would love a stand alone but I dont want to cut the car up, and its $$$ for the C6.
If I ran a stand alone what octane would I need with 91 in the main tank?
But I have fuel rail covers that keep the heat in, I never had a problem with them removed.
I have a 6' feed line from the rail to the fuel noid thought that would be enough extra volume?
How can I test if it is lack of pressure vs length of the lines?
I would love a stand alone but I dont want to cut the car up, and its $$$ for the C6.
If I ran a stand alone what octane would I need with 91 in the main tank?
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Robert
#27
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Well I will have to trust that in your case the extra length helped, why, I am not sure? Normally it makes matters worse by increasing the change time. If in fact it's something to do with the C6 fuel system, and you confirm this, let me know as we need to add this to the knowledge bank.
Robert
Robert
If the 6' line always has fuel in it why would it mattter how long it is?
Could it have been my old short fuel feed line was coiled?
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I'm also having a lean activation problem with my wet kit. My nitrous line from my solenoid to plate kit is about 2 inches shorter than my fuel line. I'm moving some stuff to shorten the fuel line by 3-4 inches. If that doesn't fix it then I'm converting to dry.
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Did some more testing today
I added some lenghth to the Nitrous side and the frame by frame loks like this:
secs AFR
2.70 14.9 at cruise
2.79 13.1
2.87 12.7
2.95 12.6 its getting richer
3.03 13.0
3.11 13.6 thats the leanest it gets
3.19 12.5
3.28 11.4 Target
This was with 41/22 Jets I will test with larger jets soon
I am having another problem my progressive controller is not holding 100% in the upper RPMS think I need a better ground?
I added some lenghth to the Nitrous side and the frame by frame loks like this:
secs AFR
2.70 14.9 at cruise
2.79 13.1
2.87 12.7
2.95 12.6 its getting richer
3.03 13.0
3.11 13.6 thats the leanest it gets
3.19 12.5
3.28 11.4 Target
This was with 41/22 Jets I will test with larger jets soon
I am having another problem my progressive controller is not holding 100% in the upper RPMS think I need a better ground?
#31
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Did some more testing today
I added some lenghth to the Nitrous side and the frame by frame loks like this:
secs AFR
2.70 14.9 at cruise
2.79 13.1
2.87 12.7
2.95 12.6 its getting richer
3.03 13.0
3.11 13.6 thats the leanest it gets
3.19 12.5
3.28 11.4 Target
This was with 41/22 Jets I will test with larger jets soon
I am having another problem my progressive controller is not holding 100% in the upper RPMS think I need a better ground?
I added some lenghth to the Nitrous side and the frame by frame loks like this:
secs AFR
2.70 14.9 at cruise
2.79 13.1
2.87 12.7
2.95 12.6 its getting richer
3.03 13.0
3.11 13.6 thats the leanest it gets
3.19 12.5
3.28 11.4 Target
This was with 41/22 Jets I will test with larger jets soon
I am having another problem my progressive controller is not holding 100% in the upper RPMS think I need a better ground?
Robert
#32
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Something else that can help lean spikes on activation is to make sure our WOT Fuel Multiplier or WOT Power Enrichment, is activated at an RPM slightly lower than activation RPM of the n2o system. Sometimes the WOT a/f ratio comes into effect at or later than the spray activation point, then once again the fuel system is playing catch up. IIRC, I set mine for like 3000rpm and had an activation RPM of 3400rpm, or something similar, but that way, I know for a fact that the fuel enrichment for Wide Open Throttle has already begun when the spray starts.
Robert
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I wish I had HPT Pro or there was another way to log it in HPT w/ the C6
Here is an old file a 60-175mph pull on 125 shot goes from 11.5-11.3 in high gear I run it at 10.8-11.0 now
Here is an old file a 60-175mph pull on 125 shot goes from 11.5-11.3 in high gear I run it at 10.8-11.0 now
#34
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Anyway the line may not be 6' but it is long because of where I mounted my noids. and the leangth of the feed line has nothing to do with my quick lean spike the extra volume actually helps.
Can I see your HPtuners and logworks files on a 150 shot, how much shorter is your fuel line vs N20 line?
#35
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No it's not. If there's air in the line, that needs to be pumped out before the fuel gets to the nozzle...It just doesn't magically disappear. That's why most of the big dog nitrous guys use a jet right before the noid with a return line to bleed off some of the fuel and allow all of the air to be purged out of the line.
Look at the post above and rethink what you are saying.
Without a WB you do not know if you had a lean hit your just assuming... my plugs look fine too but the WB clearly shows a lean spike that is not showning on the plugs.
#36
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Did some more testing
N20 18'------------------noid--Plate (-- = 24")
Fuel 6'------noid-Plate (- = 16")
I still get a small spike to 14 for .33
And the Progressive is working great now
I will test the short 12" fuel feed line with the same setup soon
N20 18'------------------noid--Plate (-- = 24")
Fuel 6'------noid-Plate (- = 16")
I still get a small spike to 14 for .33
And the Progressive is working great now
I will test the short 12" fuel feed line with the same setup soon