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Originally Posted by Bobiam
http://www.youtube.com/watch?v=vFmLlwKD69w
I just read the Tech Q&A column in PCA's Porsche Panorama mag of Aug 2009. Someone wrote in to ask about the RSS IPD plenum product that was tested in the video. The answer indicates that if the dyno test appears to have been done with only a single dyno pull, then an install of the plenum, followed by another single dyno pull, then it's likely that much of the HP and torque gain was due to the gear oil being warmer on the second pull which by itself can account for between 10 and 30 additional HP. Unless the test were done with more respect to accurate dyno test procedures requiring multiple pulls, and the necessary miles to get the ECU to recognise the new plenum, the entire test appears invalid and misleading.
So, there is little evidence that the IPD product is worth anything, much less $1000+, and I'm not yet convienced that Pedro's product can provide a performance increase that is really noticable.
Like I said before, it's up to the readers of this forum to shell out the $260 or so to find out and report back to us via forum. Personally, I am not in a position to make this experiment unless I have Pedro's willingness to assist. I'm sure that like me, there are dozens of you that would be willing to provide feedback to this forum regarding Pedro's plenum product based on seat of pants evaluation. I agree with Pedro that subjecting the product to a real valid dyno testing is too expensive. I'd be happier with the opinion of several of you guys based on a real driver's test.
Bob
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If you look at the kinda back and forth you see even after dyno runs were completed on the IPD Plenum...(just check out the debate that arose in the following 6speed thread), you'll see that there's always going to be controversy. From what I've seen so far, every single person who has installed Pedro's TechnoTorque has said positive things. His product only costs a quarter of what IPD/RSS is charging, and it is fully reversible as he doesn't ask for your core Tee, so it's just a matter of whether or not you're willing to give it a shot and try it if you're so inclined.
http://www.6speedonline.com/forums/997/132163-i-there-rss-plenum-dyno-day.html