Re: TUBI
Alex at Sharwerks RE: IPD Plenum:
"As a seller/installer of many of these I have to say I've seen _more_ than 5hp on dyno runs and that's on the NA ones. The TT ones have always worked well and I've seen anywhere from 15-24hp to the wheels at least on the 996TT. I've physically seen the 997TT one being dynod at EVOMS' facility as well and that came out to 23awhp."
Also on this particular dyno (STOCK Turbo) the peak HP gains arent that remarkable, gains obviously vary and imo approx 20HP seems to be about the avg. but look at how greater power comes on earlier @ 3800rpms there is a 35HP increase. More interesting though is look at the ft/lbs increase w/ plenum- 46ft/lbs increase! That's what people are feeling in the seat of their pants tests imo, mid-range between 3-4k rpms there is a 35HP (max) increase and a 46ft/lbs (max)increase.