Cold air intake

[Jake Raby]

How are you measuring throttle response....seems you would need a tp, rpm, plot. Do you have some graph to show us?

I have three dynes in house. The majority of the past 15 years of my life has been spent belong their controls. nThat experience has taught me that a dyno isn't everything and I tune for what I feel is best along with what the plots state as a compound overview.

My Wife holds 4 Land Speed records in a 996, she set all 4 of them in one weekend after the car was .5 MPH too slow to set records in 3 of those 4 classes. I tuned the car so it performed best in relation to throttle response and torque and went with those settings even though the dyno showed a 6HP peak LOSS. On her first pass she shattered the record 3 times in a row. A dyno and a plot isn't everything.

I also have plots from my 28 channel race-technology DL2 data logger that shed a lot of klight on the desnorkel and even the CAI. Those ploits also are not everything.

I drive over 100 different cars a year on my 88 mile/day round trip commute. Time and time again I find holes in the powerband with the desnorkeled cars and I do not care for the modification at all. In my own Boxster I re-snorkeled and never went back.

All of what I state comes from direct experience; not parroted information.

[jaykay]

Sounds like some good experience.....do you think anything other than the stock snorkel area would be sub optimum for throttle response? As I mentioned I cut mine (3/4 s up from the outboard end) and velocity stack shaped the lip to try and stab for the best of both worlds.