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Originally Posted by Kirk
I buy the overall concept as a lot of people swear by the IPD/RSS/Mike's Turbo plenum that's the same type of design, just higher quality. A couple points of note though:
You've got a GTech windshield mounted device serving as hard data with such a slight difference between the curves.... Why on earth wasn't a real dyno used???
Port and polish.... come on! What exactly are you porting? The part in question is PLASTIC. How on earth are you going to really port that without making the plastic walls thinner and more brittle? Are you maybe knife edging the outlet side?
I've had the T after the throttle out on my '00 Boxster S. I must be really lucky as mine was already smooth inside from the factory.... perfectly smooth inside, no resin flash, no seams, no need for a polish. That's specifically why I had it apart, to look for a port and polish opportunity there and I saw little, if anything, you could gain without likewise porting the throttle body and also potentially compromising the integrity of the part. Because of the way the stock hoses and throttle connect I also saw no gain from knife edging the part. So I'm certainly curious as to what you've done!
Other than these points (and I am very skeptical by nature) I think the product has some real potential.
Kirk
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Let me try to go point-by-point:
The reason why I prefer the G-Tech is because you get a real-life test, where the vehicle is actually accelerating it's own mass while moving through the air.
If you first establish a base it can be quite accurate as to gains or losses.
I generally do 10 runs, throw out the high and the low and average the remaining 8.
Porting can be slight. I'm not talking 1/8 inch here, just taking out the mold seams.
I can guarantee that there are many of them on the new parts. I purchase the parts directly from Porsche and I have yet to find one without the mold seams.
You must have been very lucky to have gotten a perfect one. I've yet to see one in my 13 years of dealing with Boxsters.
Polishing and sealing is one of the best features, because it prevents oil droplets and dirt to collect on the Tee which normally they do generating air turbulence.
But, as promised, I took the time to prepare a short video on the subject, which I recommend any interested or skeptical person take a look.
I go on to explain the mechanics of the part and show some of the experiments I performed to convince myself that there are true gains of airflow efficiency.
Hope you enjoy it.
Happy Boxstering,
Pedro
You can see it on PedrosGarage.com TechnoTorque webpage, scrolling to the bottom of the page:
http://www.pedrosgarage.com/Site_2/TechnoTorque.html