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EcoBoost Engines
Let the ecoboost modding begin!
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<blockquote data-quote="Venomous Mofo" data-source="post: 8794588" data-attributes="member: 4375"><p>I own a 07 Mazdaspeed 3... it too is direct injection with a little K04 turbo. Stock boost is 10 psi in first/second... then you get 15.7 psi in each other gear. Because its FWD, the power was limited there. After tuning, 20 psi in each gear and fully bolted, 33x hp ratio. </p><p></p><p>What we have found after 3 yrs is... direct injection has a flaw. At least how Ford/Mazda set it up. There isnt enough fuel getting dumped into the engine. The car runs on a factory wideband sensor and at all costs, will try to meet the target AFR found in the ECU tables.</p><p></p><p>You can slap on a 2871r, 3071r, 3076r or even a GT35R turbo and still not make more then 360 hp. If the engine isnt built, kaboom since the rods cant take more then 350 #'s of torque. They will explode right through the block.</p><p></p><p>The conclusion we have come up with is injector timing width. Its not modifiable whatsoever in the Mazda ECU, which is forcing us to go with a secondary fuel system to see if the car will make additional power. As it sits right now, meth injection proves to add more power to this car even stock.</p><p></p><p>What i will find interesting is, seeing the tables available from the Ford ECUs on both the SHO and Flex with these Ecoboost engines. For whatever reason, Mazda made these DI engines very difficult to open up and make power out of them. It would be very sad to see Ford go down the same route.</p><p></p><p>One final note.. direct injection needs methanol injection to keep the valves clean. If you guys see the destruction of deposits and gunk on our engines in less then 25K, you will freak out. Im in the market for a family vehicle and i have been eyeballing the Ecoboost Flex.. But my experience with the Mazda thus far, has left a very bad taste in my mouth. Im hoping the domestic side of the DI Ford engines, are different. I will be keeping my eye out on all of the related forums to see whats going on.</p></blockquote><p></p>
[QUOTE="Venomous Mofo, post: 8794588, member: 4375"] I own a 07 Mazdaspeed 3... it too is direct injection with a little K04 turbo. Stock boost is 10 psi in first/second... then you get 15.7 psi in each other gear. Because its FWD, the power was limited there. After tuning, 20 psi in each gear and fully bolted, 33x hp ratio. What we have found after 3 yrs is... direct injection has a flaw. At least how Ford/Mazda set it up. There isnt enough fuel getting dumped into the engine. The car runs on a factory wideband sensor and at all costs, will try to meet the target AFR found in the ECU tables. You can slap on a 2871r, 3071r, 3076r or even a GT35R turbo and still not make more then 360 hp. If the engine isnt built, kaboom since the rods cant take more then 350 #'s of torque. They will explode right through the block. The conclusion we have come up with is injector timing width. Its not modifiable whatsoever in the Mazda ECU, which is forcing us to go with a secondary fuel system to see if the car will make additional power. As it sits right now, meth injection proves to add more power to this car even stock. What i will find interesting is, seeing the tables available from the Ford ECUs on both the SHO and Flex with these Ecoboost engines. For whatever reason, Mazda made these DI engines very difficult to open up and make power out of them. It would be very sad to see Ford go down the same route. One final note.. direct injection needs methanol injection to keep the valves clean. If you guys see the destruction of deposits and gunk on our engines in less then 25K, you will freak out. Im in the market for a family vehicle and i have been eyeballing the Ecoboost Flex.. But my experience with the Mazda thus far, has left a very bad taste in my mouth. Im hoping the domestic side of the DI Ford engines, are different. I will be keeping my eye out on all of the related forums to see whats going on. [/QUOTE]
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