quote:

Originally posted by sc3171:
I've dabbled a bit before with an alcohol system years ago but looking at adding a simple plate kit to my car now and have some questions. It's a 4.60 dragster with a 2.400" bore Q16 carb.

I have a Magnafuel 500 pump feeding a BG 4 port deadhead regulator with -6 lines feeding each bowl of the carburetor. Would it be feasible to just add another line from the regulator to feed the fuel solenoid? On my previous system, I used a separate regulator just for the fuel side of the nitrous system but I'm wondering if that's overkill for what I'm trying to do here, which is....spray 100hp for a few seconds to pick up about a tenth on one qualifying pass then put the bottle in the trailer for the rest of the weekend. I'm going to spray this thing a total of about 15 seconds in an entire season.

Any feedback would be appreciated but right now I'm just looking at the NX 30070 plate system and keeping it as simple as possible.

quote:

Originally posted by Coloradoracer:
NO! You need to run a separate regulator for the nitrous system. Flowing fuel pressure for the nitrous system is calculated through a jet, usually a .073 if the system has been flowed and mapped by someone like Robert Lane or Steve Johnson. For the NX stuff they give you the proper jet size for each level to flow your fuel pressure though...But, if you flow fuel pressure through the recommended jet with a flow tool, then recheck it without the jet and regular gauge, You'll find a big difference in settings....

I made that mistake on my stuff, set carb regulators with my flow tool...Actual fuel pressure at the carbs was less than 3psi....But with the flow tool it showed 6.5 because of the jet...

Also, when you engage the system, there will be a pressure drop which could affect the carb. But if you don't set flowing fuel pressure on the system as recommended with the proper jet and a flow tool, you'll play hell finding the right tune up.....all the factory tunes are based on flowing fuel pressure with a specific jet and a flow tool...

quote:

Originally posted by TOP38:

quote:

Originally posted by sc3171:
I've dabbled a bit before with an alcohol system years ago but looking at adding a simple plate kit to my car now and have some questions. It's a 4.60 dragster with a 2.400" bore Q16 carb.

I have a Magnafuel 500 pump feeding a BG 4 port deadhead regulator with -6 lines feeding each bowl of the carburetor. Would it be feasible to just add another line from the regulator to feed the fuel solenoid? On my previous system, I used a separate regulator just for the fuel side of the nitrous system but I'm wondering if that's overkill for what I'm trying to do here, which is....spray 100hp for a few seconds to pick up about a tenth on one qualifying pass then put the bottle in the trailer for the rest of the weekend. I'm going to spray this thing a total of about 15 seconds in an entire season.

Any feedback would be appreciated but right now I'm just looking at the NX 30070 plate system and keeping it as simple as possible.

I would say probably due to the low HP of spray your looking for. However your tune up should take into account how much fuel pressure your currently running. Fuel provides the power and the NO2 provides the O2 to burn it. Although no manufacturer is likely to OK this setup, I'd say the regulator and pump can provide enough fuel for both. I would also tell you to be conservative with timing! Too much timing hurts parts more than too much or too little fuel. Take out 6 degrees to start with for 100 HP. You will also have to turn it on very early in the run to pick up a tenth, like 0.250 out.

quote:

Originally posted by sc3171:

quote:

Originally posted by TOP38:

quote:

Originally posted by sc3171:
I've dabbled a bit before with an alcohol system years ago but looking at adding a simple plate kit to my car now and have some questions. It's a 4.60 dragster with a 2.400" bore Q16 carb.

I have a Magnafuel 500 pump feeding a BG 4 port deadhead regulator with -6 lines feeding each bowl of the carburetor. Would it be feasible to just add another line from the regulator to feed the fuel solenoid? On my previous system, I used a separate regulator just for the fuel side of the nitrous system but I'm wondering if that's overkill for what I'm trying to do here, which is....spray 100hp for a few seconds to pick up about a tenth on one qualifying pass then put the bottle in the trailer for the rest of the weekend. I'm going to spray this thing a total of about 15 seconds in an entire season.

Any feedback would be appreciated but right now I'm just looking at the NX 30070 plate system and keeping it as simple as possible.

I would say probably due to the low HP of spray your looking for. However your tune up should take into account how much fuel pressure your currently running. Fuel provides the power and the NO2 provides the O2 to burn it. Although no manufacturer is likely to OK this setup, I'd say the regulator and pump can provide enough fuel for both. I would also tell you to be conservative with timing! Too much timing hurts parts more than too much or too little fuel. Take out 6 degrees to start with for 100 HP. You will also have to turn it on very early in the run to pick up a tenth, like 0.250 out.

My carb pressure is about 6 psi. NX recommends 8-10 on their jetting. Why couldn’t I counteract the lower pressure by adjusting the fuel jet like you’re saying? Surely there’s enough volume at the regulator to do both? Not real sure which direction to go here. Don’t really want to over complicate things but certainly don’t want to hurt anything either.

quote:

Originally posted by sc3171:

quote:

Originally posted by TOP38:

quote:

Originally posted by sc3171:
I've dabbled a bit before with an alcohol system years ago but looking at adding a simple plate kit to my car now and have some questions. It's a 4.60 dragster with a 2.400" bore Q16 carb.

I have a Magnafuel 500 pump feeding a BG 4 port deadhead regulator with -6 lines feeding each bowl of the carburetor. Would it be feasible to just add another line from the regulator to feed the fuel solenoid? On my previous system, I used a separate regulator just for the fuel side of the nitrous system but I'm wondering if that's overkill for what I'm trying to do here, which is....spray 100hp for a few seconds to pick up about a tenth on one qualifying pass then put the bottle in the trailer for the rest of the weekend. I'm going to spray this thing a total of about 15 seconds in an entire season.

Any feedback would be appreciated but right now I'm just looking at the NX 30070 plate system and keeping it as simple as possible.

I would say probably due to the low HP of spray your looking for. However your tune up should take into account how much fuel pressure your currently running. Fuel provides the power and the NO2 provides the O2 to burn it. Although no manufacturer is likely to OK this setup, I'd say the regulator and pump can provide enough fuel for both. I would also tell you to be conservative with timing! Too much timing hurts parts more than too much or too little fuel. Take out 6 degrees to start with for 100 HP. You will also have to turn it on very early in the run to pick up a tenth, like 0.250 out.

My carb pressure is about 6 psi. NX recommends 8-10 on their jetting. Why couldn’t I counteract the lower pressure by adjusting the fuel jet like you’re saying? Surely there’s enough volume at the regulator to do both? Not real sure which direction to go here. Don’t really want to over complicate things but certainly don’t want to hurt anything either.

quote:

Originally posted by TOP38:

quote:

Originally posted by sc3171:

quote:

Originally posted by TOP38:

quote:

Originally posted by sc3171:
I've dabbled a bit before with an alcohol system years ago but looking at adding a simple plate kit to my car now and have some questions. It's a 4.60 dragster with a 2.400" bore Q16 carb.

I have a Magnafuel 500 pump feeding a BG 4 port deadhead regulator with -6 lines feeding each bowl of the carburetor. Would it be feasible to just add another line from the regulator to feed the fuel solenoid? On my previous system, I used a separate regulator just for the fuel side of the nitrous system but I'm wondering if that's overkill for what I'm trying to do here, which is....spray 100hp for a few seconds to pick up about a tenth on one qualifying pass then put the bottle in the trailer for the rest of the weekend. I'm going to spray this thing a total of about 15 seconds in an entire season.

Any feedback would be appreciated but right now I'm just looking at the NX 30070 plate system and keeping it as simple as possible.

I would say probably due to the low HP of spray your looking for. However your tune up should take into account how much fuel pressure your currently running. Fuel provides the power and the NO2 provides the O2 to burn it. Although no manufacturer is likely to OK this setup, I'd say the regulator and pump can provide enough fuel for both. I would also tell you to be conservative with timing! Too much timing hurts parts more than too much or too little fuel. Take out 6 degrees to start with for 100 HP. You will also have to turn it on very early in the run to pick up a tenth, like 0.250 out.

My carb pressure is about 6 psi. NX recommends 8-10 on their jetting. Why couldn’t I counteract the lower pressure by adjusting the fuel jet like you’re saying? Surely there’s enough volume at the regulator to do both? Not real sure which direction to go here. Don’t really want to over complicate things but certainly don’t want to hurt anything either.

I would call NX, I am sure they can recommend a starting tune up with 6 PSI of fuel pressure.

Like I stated before, spraying 100 HP for a few seconds is not a big deal. Some racers dry spray this deal. The two worst things you can do is have too much timing and next is run it way to rich, both can hurt parts/pistons!

quote:

Originally posted by TD3550:
Just curious.What is the combo on the deal? That 2.400 spec'd with proper angle channels and booster tubes/Wide body blocks? Ever try C 23?