2007 m8 bd race gas turbo low end bog

[racegasrider]

i just updated my box and turbo and when i take off for a pull the sled acts like its loaded up with fuel and it takes a second or two before i have throttle response and can go forward??? kyle reset the box with starting #'s and my egt's were a little high si i added one # of fuel at 5000 rpm low and medium??

 

[doughboy]

fuel pressure?

You may want to check your fuel pressure. If it is too high it can affect the bottom end regardless of the controller numbers. DB

 

[racegasrider]

thanks DB not sure whats its at will check it and go from there....what should it be??

 

[c_feds]

I have the same sled with the same turbo. BD recommends 42 pounds fuel pressure. Just curious, what spark plugs are you running?