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Ok didnt have a chance to post the dyno results last night. But there is actually a problem. Turns out that at about 5400RPM to Redline she starts gets lean, like 12.8 lean! Everything before that is perfect, and obviously Im not going to take her in to dangerous territory. Basically they are telling me the only way to resolve the issue is with a Fuel return system... I'll try to post graphs tonight so guys get a better idea.
who did the tuning ????
No way you should have run out of fuel at that level of power with the 440 ijectors
Bad assumption about "within acceptable limits".. I have the same fuel set up and mine reads 80psi at idle and slightly lower during normal non spirited driving.. If you don't make the mod's recommended by the Turbonetics install man. to the fuel pump and Phunks recommended mod to the swirl jet you wind up with 80 psi..
Could you to the Turbonetics mod with the Vortech? What is the Phunk mod as well?
ECU flash since the SS box only controls fuel in boost. Running the bigger injectors with no way to tune them out of boost is no good. I will be doing this soon as well for my 440s.
Are you talking about a ECU flash like Technosquare? How bad would it be if you didn't get the flash and only relied on the SS box to scale for 440cc injectors? How are you running your setup currently and how is driveability?
Are you talking about a ECU flash like Technosquare? How bad would it be if you didn't get the flash and only relied on the SS box to scale for 440cc injectors? How are you running your setup currently and how is driveability?
Yes, I am. The problem is that the SS box works only when in boost. Any other time, you'd be using the stock ECU to control fuel. That stated, the stock ECU would be running the 440s as if they were the stock ones and you'd end up getting worse idle and running rich. You'd want to get the flash to have the stock ECU run the 440s correctly.
I have the 440s sitting here waiting for the install. I will be doing those once the Cosworth manifold comes in. At that point, I will be doing a flash and then retuning the car.
