Challenger Drag Pak Owners

magnumv8 · 01-31-2010, 06:12 PM

Hey Chris....Mopar has been using a system similar for years,with the return inside the fuel tank with the pump, reason?....no engine warmed fuel being recycled back into the fuel tank,one less fuel line also.uh-oh,now everyone knows....Electromotive's Tec3r system in their instructions says that a properly set up system requires NO fuel pressure regulator...hmmmmm.......on a carb setup universally the regulator goes before the fuel mixer(carb) on a fuel injection system the regulator can go before OR after the mixer(injector),so you can either do a return from the injector rail system or dead head the fuel at the rails with the regulator at the tank....which is better? depends on the setup and the only way to find out is to try them all....

The main issue that is the hardest to deal with is the "airation" of your fuel(bubbles in the fuel)...since fuel pressure is higher with injection it can happen real easy and be really hard to diagnose...line sizes are another area where you need to optimize the flow....a line larger than what you need can hurt you as much as one too small...as long as you can cover the required gpm with the optimum fps(feet per second) that you need with a certain size there is no need to go bigger...in fact fluid dynamics will actually HURT your flow if the lines get too big( too large of a subject for here)

On a "push-lok" pressure hose you do not want clamps on it because the barbs are so sharp they will cut the hose from the inside with the force of the clamp on the outside of the hose, I don't remember the max pressure some of these are rated for but I do know that some will hold 200 psi with no problem....

D L Rambo....

01-31-2010, 06:12 PM	#8
magnumv8 Member Join Date: Feb 2009 Location: Coraopolis, Pa. Posts: 172 Likes: 0 Liked 0 Times in 0 Posts	Re: Challenger Drag Pak Owners Hey Chris....Mopar has been using a system similar for years,with the return inside the fuel tank with the pump, reason?....no engine warmed fuel being recycled back into the fuel tank,one less fuel line also.uh-oh,now everyone knows....Electromotive's Tec3r system in their instructions says that a properly set up system requires NO fuel pressure regulator...hmmmmm.......on a carb setup universally the regulator goes before the fuel mixer(carb) on a fuel injection system the regulator can go before OR after the mixer(injector),so you can either do a return from the injector rail system or dead head the fuel at the rails with the regulator at the tank....which is better? depends on the setup and the only way to find out is to try them all.... The main issue that is the hardest to deal with is the "airation" of your fuel(bubbles in the fuel)...since fuel pressure is higher with injection it can happen real easy and be really hard to diagnose...line sizes are another area where you need to optimize the flow....a line larger than what you need can hurt you as much as one too small...as long as you can cover the required gpm with the optimum fps(feet per second) that you need with a certain size there is no need to go bigger...in fact fluid dynamics will actually HURT your flow if the lines get too big( too large of a subject for here) On a "push-lok" pressure hose you do not want clamps on it because the barbs are so sharp they will cut the hose from the inside with the force of the clamp on the outside of the hose, I don't remember the max pressure some of these are rated for but I do know that some will hold 200 psi with no problem.... D L Rambo.... Last edited by magnumv8; 01-31-2010 at 06:30 PM. Reason: more info.....