Looking for help building a Gas Vapor system

[racprops]

Originally Posted by oil pan 4

So there is no converting an exsiting fuel injection car to vapor?

I think it can be done..this is just a dual fuel setup...

Feed fuel to the vapor system and turn off the injectors and that is dirt simple as most are running on a common B + Line, cut it and the injectors are dead.

Then just feed the vapor into the intake...

Rich

[oil pan 4]

Hey that would work.

To help vaporize the fuel you have around 20 inches of mercury of vacuum in the intake manifold while cruising help blow the mist droplets apart

[teoman]

Well, my idea was that, if you nebulize very hot liquid the droplets will also be very hot. When the pressur is relieved (droplets ejected from chamber) they will instantly vaporize.

[racprops]

Originally Posted by oil pan 4

Hey that would work.

To help vaporize the fuel you have around 20 inches of mercury of vacuum in the intake manifold while cruising help blow the mist droplets apart

Well in fact most of the time at speed your lucky to see between 10 and 18 Inches of vacuum.

[racprops]

Originally Posted by teoman

Well, my idea was that, if you nebulize very hot liquid the droplets will also be very hot. When the pressur is relieved (droplets ejected from chamber) they will instantly vaporize.

Well there is the idea of vapor with a drop in pressure...

But I feel just heating the liquid will make vapor and the vapor will cause some pressure as does steam.

Letting it feed into a larger chamber will help finish the job as the pressure drops.

Rich

[oil pan 4]

When the droplets phase change that will help reduce pumping losses.

[racprops]

HOW??

My understanding is because the Gasoline engine has a throttle and creates vacuum, the vacuum IS the pumping loses.

So only if we could lose the throttle plates and control the engines RPMs and power with JUST the fuel like a diesel, BUT then all the vacuum controls and brake boosters would not work.

And then we would have top add a vacuum pump for them.

I had a friend whom did a vew gas to diesel conversions and had to add a vacuum pump.

Rich

[cRiPpLe_rOoStEr]

Originally Posted by racprops

Well there is the idea of vapor with a drop in pressure...

But I feel just heating the liquid will make vapor and the vapor will cause some pressure as does steam.

Letting it feed into a larger chamber will help finish the job as the pressure drops.

Sure, but then, instead of taking heat from the air intake flow and leading to a colder air stream with a higher density and concentration of oxygen, the heated fuel vapors are going to transfer heat to the air stream and decrease its density, leading to some performance losses. Would have to run very lean and control the vapor and the air flows very accurately to avoid losing so much power.

[pgfpro]

Originally Posted by racprops

HOW??

My understanding is because the Gasoline engine has a throttle and creates vacuum, the vacuum IS the pumping loses.

So only if we could lose the throttle plates and control the engines RPMs and power with JUST the fuel like a diesel, BUT then all the vacuum controls and brake boosters would not work.

And then we would have top add a vacuum pump for them.

I had a friend whom did a vew gas to diesel conversions and had to add a vacuum pump.

Rich

This is a problem on my car at light load and running around 1 to 2 psi in lean burn. If I let off the gas and coast it takes me a awhile to get back into my lean burn 1psi+ part of the map. So I usually just touch the breaks to slow down for traffic while keeping the same amount of gas pedal input, but after a few times I lose my vacuum in my break booster. So I added a vacuum pump on a switch to instantly get my vacuum back to the break booster.
Sorry the pic is kinda dark?

[racprops]

Interesting.

So what car, what engine and what MPG are you getting and I see the Nitro how has that worked for you?

OR is this your car:

MisFit Talon - '91 Eagle Talon TSi
Team Turbocharged!
90 day: 43.87 mpg (US)

I take it a small 4 cylinder??

Rich