NITROUS OXIDE System Designs | Installation| Wet/Dry/Direct Port

hick up with a single nozzle wet kit

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Old 07-05-2011, 12:18 AM
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Default hick up with a single nozzle wet kit

ok so i just got my wet kit installed and i have been trying to dial it in and i noticed when i first squeeze i get a" hick up" then the power comes on strong . but and every pass after that it runs strong with no "hick up " just quick power . i am wondering if this is because i didn't hook up my purg kit yet ? so the "hick up" i feel is a quick rich conditon till the nitrous gets there ? also what afr would you recomend for a 50hp wet shot i am running ngk tr6 but will hopefully be swaping them for br6e this weekend .
Old 07-05-2011, 09:16 AM
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so the "hick up" i feel is a quick rich conditon till the nitrous gets there?

Correct.

What AFR are you running? It should be around the 11s spraying.
Old 07-05-2011, 12:42 PM
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I am at 12.3-12.0 looks like I need to go up two sizes on my fuel
Old 07-05-2011, 01:36 PM
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Originally Posted by 6789olds
I am at 12.3-12.0 looks like I need to go up two sizes on my fuel
Not necessarily. While plug reading will tell you what the engine wants, it isn't uncommon for AFRs to be in the low 12's while spraying. A rich condition is a good way to explode a ring land when spraying...and is often mistaken for being too lean.
Old 07-05-2011, 02:44 PM
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Thanks for the info krambo I will pull my plugs this weekend I should do a pass then check the plugs right after? Or can I drive it Home then pull the plugs then?? Thanks
Old 07-05-2011, 07:59 PM
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I know all vehicles and plugs want different things, but we are around a 12.3-12.6 afr on the spray . Plugs check out perfect and runs great too. Was going to lean it out a hair more and see.

Now, for your 50shot. I wouldn't worry about changing plugs. Maybe just close the gap a hair.

Another way you can purge is if you have your system on a button is to bring the rpms up to around 3000 and just blip the nitrous button and your tach should climb and than come back down. if not than do it one more time.

That is how I sometimes purge into the motor if I don't want someone to know I am about to spray
Old 07-05-2011, 10:41 PM
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Originally Posted by 00rcsb
I know all vehicles and plugs want different things, but we are around a 12.3-12.6 afr on the spray . Plugs check out perfect and runs great too. Was going to lean it out a hair more and see.

Now, for your 50shot. I wouldn't worry about changing plugs. Maybe just close the gap a hair.

Another way you can purge is if you have your system on a button is to bring the rpms up to around 3000 and just blip the nitrous button and your tach should climb and than come back down. if not than do it one more time.

That is how I sometimes purge into the motor if I don't want someone to know I am about to spray
cool my tr6 are at .45 i was going to close to .35 but i figure what the heck just swap the plugs just in case i might up tp 75 hp lol that is a good idea with just bumping the button real quick . thanks . i will post some plug picks up in another thread
Old 07-05-2011, 10:42 PM
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You need a purge and you need to leave everything as-is and go with good pressure, fresh plugs, make a pass and shut it down after the pull, and immediately pull and read the plugs. This will tell you what's going on just as good as a wideband.

And agreed, rich conditions while spraying are just as dangerous as leaning it out
Old 07-05-2011, 10:55 PM
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Originally Posted by 6789olds
I am at 12.3-12.0 looks like I need to go up two sizes on my fuel
Thats not bad for a 50shot honestly.. But yes read the plugs
Old 07-05-2011, 10:57 PM
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ok i will put in fresh plugs in this weekend and do a run and see what i get thanks for the help


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