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Message: [QUOTE="Blowby, post: 262508, member: 711"] Just wanted to post the transition from my first attempt to deliver water to the race truck. I kept thinking the 200/250 pumps would really work at high boost but with my data logging the EGT's it was a disappointing failure. [ATTACH=full]80766[/ATTACH] I was thinking two pumps, with each feeding 2 jets small in size, would keep the atomization to a level that would show lower temps. [ATTACH=full]80767[/ATTACH] It was a slight success if I used a 30% mix of methanol but I did not wanted to rely on a "best guess" to control the ignition of my fuel. I also was not able to create a fine enough mist to eliminate condensation on the tube wall which would then form larger droplets and drip into the center cylinders at a higher concentration. Next step was to pick up a pump that will produce over 1000 psi which I traded Steve at TTS for prototyping stuff last year. I then decided that to eliminate any high amp draw on the electrical system I needed to separate with it's own battery. Now to utilize the new capacity and recharge without anything to remember to turn off or on during the rounds of a racing event. [ATTACH=full]80768[/ATTACH] Now adding the charging pieces to the puzzle. Just need one switch and I'm done. I did add an inline pressure pop off valve that will open form 90-250 psi based on the springs and shims I choose. I doubled my safety with jets that have their own spring loaded shut off in the holders for added protection. [ATTACH=full]80769[/ATTACH] I'll soon find out if I will be able to control the pressure behind the jets I choose. Pressure will change as the size changes and I can accomplish the control with the regulator (upper right) and the pressure gauge to verify psi. Of course with the jets installed on the end of the lines while I spray to atmosphere. ;) [/QUOTE]