Every mile costs/ ideas to better the milage

Well, that sounds like a good way to make some adjustments but you have to worrie about long term fuel trims wich I monitor on my OBD2 scanner wich is real time, I can monitor the voltage comming from each of the 4 O2 sensors, the maf sensor. I havent loaded the programs that monitor each injector yet but id say that its not needed for what im trying to acomplish. My plan wich im going to do tommorow is disconnect the front 2 O2 sensors and maybe all 4. I want to force the truck into open loop wich will base the fuel maps on the maf.

Ok, just went and pulled the plugs on the front O2 sensors. The OBD2 showes them at a voltage of .450 and the other .455 locked so no adjustment, before they showed in the .650 to .850 range verying. The rear sensors were still reading but ALOT leiner, in the .050 at idle and .3 under excel so thats working. Ow, forgot to mention im still bleeding air in through the Vac side of the throttlebody along with the hydro gismo. I stopped the leak and the rear 02s went to .350 at idle. It seemed I was bleeding to much air for open loop so the truck started stumbling, I adjusted the bleed till the idle was stable with the gismo running, forgot to turn it off to see what happens. When I got back from a ride the rear 02s were .010 to .005, and it was still running pretty good??? holly crap. I have a freshly filled tank, lets see if were gona see even more milage, might break 300 this time.

Ok, twisted , tryed it your way. I mounted the trusty shop wideband. Filled the tank and clocked 50 miles, average speed 65 70, returned to the sceen of the same pump, filled 2.2 gallons. The wideband was between 16 and 19 to 1 air/fuel. So, thats around 23 to 24 MPG. that sure beats 16 to 20 that I was getting before. Ok, new idea that I talked to a very smart guy I now that worked at Pratt & Whitney as and engineer. He said to heat the gasoline to the point of vapor using the exaust manifold as a pre heater. He said when they tryed it they got almost 80 MPG on a V-8. Ok, it sounds dangerous to me but ill give it a try. Im thinking of a throttlbody settup. Put in a switch to shut off the port injection when the vapor system gets up to temp. :flame:

Quote:

---

Originally Posted by MoonRaker

He said to heat the gasoline to the point of vapor using the exaust manifold as a pre heater.

---

My Cobra used to do that. We called it vapor lock. Tended to kill the engine. Not a good thing. Fuel pumps don't work well pushing vapor.

The plan is to have a seprate fuel system tied into the stock one. Fuel wont be pumped as vapor. It tends to rise in pressure when vaporized anyway. We have a stand alone fuel injector system at the shop that can control 1 injector. The plan is to inject the fuel prior to a copper or stainless line that runs across the exaust manifold then through a nozzle pre throttlebody. No vapor lock that way.

My new answer for the fuel costs :)

http://www.fireblades.org/forums/gen...tom-trike.html

What happened with the hydrogen setup?

Also, what gains did you get with the water/methanol injection system you were experimenting with?

Quote:

---

Originally Posted by Ldub

What happened with the hydrogen setup?

Also, what gains did you get with the water/methanol injection system you were experimenting with?

---

The hydrogen settup is work in progress. Ive gotten to the point were I need to change the timming and have no way of doing so at this time. I hooked up a buddys f-150 with a generator and hes getting 100 to 150 more miles out of his tank. The water meth setup is on the back burner. I really dont have the time to play with it and do any real testing and tunning. Also the price for the methanol is more then gas, who woulda figured. Im looking at starting a corperation building trikes. Gotta go were the money is. Ive left the O2 sensors unplugged and the VX is getting much better and consistant milage buy running MAF only without any O2 readings. Id say that its due to the ethonal being mixed in gas. Ethonal causes your ECU to fatten up your mix due to the factory calibrations on the emmisions system. Did you now that most cars run fatter so theres more unburnt fuel going into your cat to make it light off easier and work better at burning off the hydrocarbons?