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Old Oct 24, 2004 | 11:03 PM
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so I finally have some juice on my car. It is a nx maf kit, and currently spraying 75 shot. Once I put in plugs and get my other pills, I will put it up to 100 shot. Anyway, I was wondering if it is bad for the sylonoids to arm the system while at wot? It seems that it would put added stress on the noids if I were to do this. Just wondering incase i am in the middle of a race and decide I need to use it.

fry
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Old Oct 25, 2004 | 02:49 AM
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I'm not sure if I'm understanding correctly. You're asking if when you're not spraying, but at WOT, you flip the switch on and you start spraying, is that bad for the noids?
If that's what you're asking then no, at least I don't think so. That's how I spray because it's hard to get traction. I floor it in first, the second after it shifts into 2nd I hit the switch and the nitrous sprays because I'm WOT already.
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Old Oct 25, 2004 | 02:56 AM
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thats what I am asking, I guess I worded it like a 3 year old. It just seems, to me that is, that there would be added stress. And as for me actually doing this...it would be a hard feat to accomplish with me being an m6 and my nx switches in the cubby hole.
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Old Oct 25, 2004 | 03:07 AM
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Well, I can't see there being much of a difference between arming the nitrous system from an idle then flooring it and flooring it then flipping the switch. The WOT switch just completes the circuit in either event.
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Old Oct 25, 2004 | 03:24 AM
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Yup, you are correct about completing the circuit. So I guess I am just thinking completly on the wrong track. From what you have said, and me actually thinking about it, it wouldnt cause any added stress. Thanks, I am just trying to figure it all out, as I just put my system on last week.

Fry
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Old Oct 25, 2004 | 03:39 AM
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Originally Posted by frey51
Yup, you are correct about completing the circuit. So I guess I am just thinking completly on the wrong track. From what you have said, and me actually thinking about it, it wouldnt cause any added stress. Thanks, I am just trying to figure it all out, as I just put my system on last week.

Fry
With the switches in the cubby hole as you have them,I would highly recommend getting a window switch(such as Harlan's),cause it saves the added stress of having to arm the system and worry if your at a high enough rpm to do it safely.
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Old Oct 25, 2004 | 04:29 AM
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I know I need one, and plan on getting one soon. I dont drive much on the street, and have only been to the track once this season, with that being last weekend. The window switch is on my plate, I just need the extra cash to get it. Plus I need to pick up a bottle heater of my own, and some tr6's. Until the plugs, I dont think I will be spraying again, just for my own assurance.

Fry
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Old Oct 25, 2004 | 10:46 AM
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If you don't drive it on the street, forget the heater, it is not essential, however the window switch, and fuel pressure saftey switch are. I assume you know the ILL effects that No2 has. like spraying the car below 3000rpm(intake fuel puddling=intake blown off) or a fuel pump failure which would lean out the motor and wash the piston walls. The saftey switch removes the ground from the system (cuts it off) if there is failure definate need. The heater, go to any truck stop and get a 12volt heating pad 19.99, and put that 150.00 to better use. IMO, trust me I spent the extra 450.00 heater plus opener, waste!!!!!!!!!
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Old Oct 25, 2004 | 10:49 AM
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Originally Posted by daryl2cb@yahoo.com
If you don't drive it on the street, forget the heater, it is not essential, however the window switch, and fuel pressure saftey switch are. I assume you know the ILL effects that No2 has. like spraying the car below 3000rpm(intake fuel puddling=intake blown off) or a fuel pump failure which would lean out the motor and wash the piston walls. The saftey switch removes the ground from the system (cuts it off) if there is failure definate need. The heater, go to any truck stop and get a 12volt heating pad 19.99, and put that 150.00 to better use. IMO, trust me I spent the extra 450.00 heater plus opener, waste!!!!!!!!!
for pics PM
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Old Oct 25, 2004 | 05:47 PM
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what is a fuel pressure safty switch, what does it do, and what do they run price wise? I havent heard of that before.
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Old Oct 25, 2004 | 06:58 PM
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I have a window switch that won't let the N20 spray untill you hit second. Hit me up with a PM if your interested.
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Old Oct 25, 2004 | 07:06 PM
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A fuel pressure safety switch or FPSS basically stops the nitrous kit in action if a drop in fuel pressure is detected. This is important because if you don't have enough fuel going in with the nitrous you will go very lean and can/will cause engine damage.
However, I've read that if the fuel noid sticks shut for whatever reason the FPSS will not help you in this situation because with the fuel noid being stuck shut, there is still fuel pressure, but no fuel going in with the nitrous
You would want something like a wideband to be able to detect a lean condition so your set up is very safe.
Dynotune makes an air/fuel ratio switch that runs off the o2 sensors and if it detects a lean condition, will also shut off the nitrous kit. It is cheaper than a wideband and I would imagine is good enough to keep your engine from being damaged.
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