Oh - DD performance stands for Dave and David (thats me and littlerocket)
We spent about an hour and a half trying to get the best possible numebrs on the stock setup before we switched to the new intake. Here are the before and after results for that tuning:
And here are more zoomed in Graphs that show the difference in torque and HP between the tuned stock intake and our tuned prototype intake:
We spent over 2 1/2 hours tuning the new intake with (obviously) good results. There is definitely still room for improment though and we will make another trip to the dyno as soon as possible with a new fuel pump and see what kind of damage we can do if we move the torque peak from 6800 up to 8000. We anticipate over 200 HP.
Based on the HP to CFM gains ratio for the intake we did some ricer math, and with stage 3 piper cams, this intake and TB and a P&P head and a race exhaust like the PPE we anticipate that over 240 WHP should be possible. With increases in comrpession ratio and the introduction of race gas we estimate that 270 WHP may be possible.