What's the point of CAI-type intakes in a 996?
05-14-2008, 05:17 PM
#16
Drifting
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Location: Prince George's County, MD
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Excellence also had an article on the GIAC showing gains on the 3.4l and less on the 3.6's but when I mention it folks ignore me.
A few years back, there was a car featured in "Excellence" magazine. It was the "Jet Blue Clubsport" 996, built by 9ff. They increased the output of the 3.4 engine to a claimed 337 hp, through some pretty extensive modifications (requiring removal of the engine). Those modifications included a different air intake system. If my memory serves me correctly, they used a BMC (GT3 cup car style) conical air filter. I don't believe every aftermarket part manufacturer's horsepower claims. 9ff does have a little bit of credibility, since they set the world production car speed record in a narrow bodied 996.
Here is a link to the Jet Blue 996...http://www.autosportengineering.com/9ff/jet_blue.htm
Here is a link to the Jet Blue 996...http://www.autosportengineering.com/9ff/jet_blue.htm
05-14-2008, 06:23 PM
#19
Nordschleife Master
In Feb. 05, there was a car featured in "Excellence" magazine. It was the "Jet Blue Clubsport" 996, built by 9ff. They increased the output of the 3.4 engine to a claimed 337 hp, through some pretty extensive modifications (requiring removal of the engine). Those modifications included a different air intake system. If my memory serves me correctly, they used a BMC (GT3 cup car style) conical air filter. I don't believe every aftermarket part manufacturer's horsepower claims. 9ff does have a little bit of credibility, since they set the world production car speed record in a narrow bodied 996.
Here is a link to the Jet Blue 996...http://www.autosportengineering.com/9ff/jet_blue.htm
Here is a link to the Jet Blue 996...http://www.autosportengineering.com/9ff/jet_blue.htm
You beat me to it... if they're so bad, then why did Porsche put them on the GT3?
05-15-2008, 12:24 AM
#21
Someone needs to contact K&N then, it seems that they have fraudulently posted on their website that their intakes make some sort of power on VWs, Audis, AND Porsches!
05-17-2008, 07:10 AM
#22
Given that the stock 996 airbox guides air from the outside into the filter, what's the point of those K&N-style intake systems? All it seems to do is draw hot air right from the engine compartment, instead of the colder outside. Does it bring *any* performance benefits to have those conical air filters?
I never dynoed my K&N 63 intake alone, but it defnitely makes a difference. My baseline dyno 100% stock was 270.1 hp (corrected) peak @ 6250 rpms on a dynojet 248C. With just the K&N intake and a pair of used Fabspeed Mufflers, it put out 292.1 hp (corrected) @ 6600 rpms on the same dyno. At just 4400 rpms, there was a 14 rwhp gain. On both the days I dynoed it was very hot. It was 99 on the day I did my baseline dyno and the correction factor was a 1.04. When I dynoed the intake and exhaust, it was only 2 degrees cooler and the correction factor was 1.03. If you look at the raw measeured numbers, the differnce was even greater. So what was the gain of the intake versus the exhaust? I have no idea, but I am very happy with the results.
