Hey guys I put my plate kit on and went to test the fuel solenoid at the plate and got air and then fuel started why wouldn't It get instant fuel ? 6.5 psi fuel  pressure ..I just don't want to kill the motor ..



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There a good delay then fuel but fuel pressure drops to 3.5 maybe pump is to small it is 110 gph...I can hear my wife in the background your gonna blow it up lol


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There a good delay then fuel but fuel pressure drops to 3.5 maybe pump is to small it is 110 gph...I can hear my wife in the background your gonna blow it up lol


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. Have you flowed your fuel and checked the fuel pressure?  Do you only run one fuel pump? Was the air only once?


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Well, on the fuel system at least

http://m.summitracing.com/parts/edl-76506?seid=srese1&gclid=COyPqMvGo8oCFVaTfgodnPsJsw


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I'm by no means a nitrous guru "get all my kye Kelly tune ups from The Bostick" but I'll put in my .02 cents, if you are running one fuel pump be sure it can handle both systems. If not recommend running a separate, always flow your nitrous fuel pressure, just cause the gauge says 6.5 doesn't mean it flows 6.5, I also have the same gauge Jake posted above, my nitrous reg is turned up to 8.5 to reach my flowing psi, as far as air in the line it is a new system, and unless you have a air bleed system on your solenoid you will have a lil air for the first couple hits. Which is why before we line up you will here us go make a few really short burst to prime the entire system before we go out and line up. And always be sure to check for leaks, don't be scared to flow nitrous fuel pressure often, and always make sure your ignition system is doing what you want it to do. I've always been a boosted guy, switch to nitrous last year and don't regret it one bit.


Gimme that BECKY!

I'm by no means a nitrous guru "get all my kye Kelly tune ups from The Bostick" but I'll put in my .02 cents, if you are running one fuel pump be sure it can handle both systems. If not recommend running a separate, always flow your nitrous fuel pressure, just cause the gauge says 6.5 doesn't mean it flows 6.5, I also have the same gauge Jake posted above, my nitrous reg is turned up to 8.5 to reach my flowing psi, as far as air in the line it is a new system, and unless you have a air bleed system on your solenoid you will have a lil air for the first couple hits. Which is why before we line up you will here us go make a few really short burst to prime the entire system before we go out and line up. And always be sure to check for leaks, don't be scared to flow nitrous fuel pressure often, and always make sure your ignition system is doing what you want it to do. I've always been a boosted guy, switch to nitrous last year and don't regret it one bit.


Gimme that BECKY!

Thank u just read this gives me some good info on flow pressure on the fuel pump ... I'm scared to pop this thing on the first run ..so I be picking your guys
 " brains "  thanks for the info


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I've read a lot on plate system but definitely a newbie when it comes to nitrous
I have the Nos activated on a WOT switch and I put a purge for the Nos solenoid . With that said how do u purge the fuel side ?


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Have not flowed tested fuel pump .
Yes only one pump and I'm getting air every time I activate the fuel solenoid . What should ideal pressure be ?when flow testing 
Thank u


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. I'm not sure what tune you are looking for. I'm running 6.75 psi on the nos side. If you arm the nos you will see 9.5 psi on the gauge. It all depends on the jet you are flowing it through. I run a mechanical pump to the motor at 6.5 psi and the nos is in an electric pump. If you getting air every time it means you have a problem. Not sure what it is for sure either bleeding down our sucking air. The pump your using now I would not use for both systems just my opinion. Where are you located?  Maybe we could offer some help. What size shot you trying to run?  Most guys do not hand out much help with nos because we will be the first one blamed when the stock bottom end let goes. Or loss of compression due to new windows in your Pistons don't forget my favorite custom new longer rods enjoy. If done right it is real safe and real fun.              Chase Online
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Ok today I flow test the fuel pump ... The Bottom end is balanced with has forged Pistons  ... I want to get fuel situation taken care of by this weekend ... 


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Having just setup my nitrous system, i have a few pointers for you. Take them with a grain of salt

1. Are you running a mechanical or electric fuel pump?
2. What is your jetting, i missed it. FYI my 150 is 63n 57fuel but im not 100% sure i can double check if you would like
3. It is always recommended to start at the smalles nitrous shot you have jetting for. this minimizes damage if something is off
4. FLOW YOUR FUEL SIDE
5. Jet RICH on fuel first
6. The first time you hit it, only hit it for abou 1-3 seconds. Then let off, pull plugs and make sure everthing looks okay
7. Reatrd timing while on the bottle

Im running approx 400 hp on motor, then the 150 shot on top. Im running a 150gph Aeromotive pump. My gauge reads about 8psi at the fuel solenoid, but dennis and i flowed it at 6.5psi. When i hit the button, i can hear it make the pump work harder. But it is more than enough in my case. I also have 0 delay in fuel delivery after i hit the button, once i bled the lines. I also have a Wideband air fuel gauge, my tuneup is still rich (rich=safe to a point) while on the bottle im in the 11.2 range. Ill eventually lean this down a little bit.

I've never setup a system using a mechanical pump, do the lines drain down after you shut the engine off? If so, and you are running a mechanical pump this may be why you have air everytime. If so. I would recommend either going to a dedicated electric pump, or if you must run the mechanical pump. Bump the button a few times with the nitrous bottle OFF until you can feel the fuel come in (engine will bog from the extra fuel)

If you have any questions feel free to ask

Thank u Steves86ta


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Good Info from everyone! So what's a good baseline tune for a 100hp ?


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Top feed tanks with -6 line ... An honest 375 to 400 hp


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