This is the style boost controller used by the fastest heads up racing in the country. You just have to figure that out so start with low gate psi settings at first till you get an idea of what boosts you can expect. Example…15psi on the controller might give you 10psi boost. Now keep in mind that you will have to experiment to find what gate pressures give what boost psi results. So you have a imaginary spring that you can tell what to do. Your programmed gate pressure curve does the same thing as the springs do only you can vary it with the pressure curves. And the way this controller works is that you set gate pressure curves and these curve are pressure thats applied to the same area in the wastegate as the springs are in. If you’re running manifold pressure you will need to run a spring thats half what your max boost will be. You start out by putting at least a 3-5psi spring if you’re running co2 or compressed air. Well what this controller does is gives you a imaginary varible spring. So you have wastegates to control boost and it’s normally set by a spring in the wastegate that gives you X amount of boost. Now since it’s a gate pressure controller you have to understand that the numbers you set in the controller ARE NOT boost. This unit is very accurate and consistant. The Boost Leash is a 5 stage time based plus launch stage Race/Street style boost controller. Simple 3 wire hookup: 12volt, ground, and launch input. Street/Strip uses of manifold pressure OR co2 pressure for control and it does away with the activation wire and the controller automaticly activates when it senses more that 2psi boost which makes it work VERY well on street cars since its automatic. The standard controller does 1psi increments. I don’t recommend this version unless you run co2 or compressed air type setup.
DAVIS BUMP BOX PRO
The Pro version comes with the billet map, Pro software and upgraded solenoids.
DAVIS BUMP BOX UPGRADE
You have the option of upgrading to a Billet Map sensor or an upgrade to the PRO version of the Boost Leash. There is a new option at the bottom for the Boost Leash. Billet Map/pressure sensor comes standard nowĬontroller comes standard in bare billet Standard, NO UPGRADE Cost to you!!!
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