Quote:
Originally Posted by twin turbo
All of the threads I read were on e90post and N54tech. There are literally a couple of thousand 335's with the same or similar intakes. It's funny that there would be that many people using hot air intakes and all losing power. Most state that there are no real performance gains until 5,000 rpm and 14 psi of boost or higher. Many have proven these intakes reduce the work load on the turbos which offsets the slightly higher intake temps.
|
First you should not be runing these turbos over 14-15psi if you are interested in the longevity of your turbos. There is no intake that will help with the stress this puts on the stock turbos. Second what most people dont take into consideration with "dyno mods" is how these mods work in real world applications because they simply do not understand anything outside of dyno charts. What you typically see is someone who installs a mod, straps the car to a dyno and makes a sigle run or maybe 2 take the higher of the numbers and post them on forums. What you find when you correctly durability test most of these mods is they lose alot of power the more you run them like they would be used in the real world. In the case of these new turbo motors alot of times these high temps and high boost levels cause the car to go into a limp mode and or shut down.
Like Eloy stated before he gets a lot of cars on his dyno and he most likely runs them 5-6 times back to back to see how consistant the gains are. We do the exact same thing when we test our software or our superharger kits because its not what the car does on a single dyno run but how its going to perform in rush hour traffic or out on the track. These are things you simply cannot judge by running a car on a dyno once or twice.
Here is a post by a 335 customer who did some testing and found out that the open filter cone intakes work great for a quick dyno run but not so well with continued use
http://www.e90post.com/forums/showthread.php?t=290054 you can see how consistant the OEM intake power was VS how the cone filter lost 20+ HP after only 2 runs. Now imagine if he ran this intake 6-7 times in a row. You can also see that the customer believes the only reason the open cone filter did as well as it did on the first run was because the motor was cool. This is the same result we got when we tested one of these intakes on our test car. This is a very good example of how vendors can advertise gains with products by simply not telling the whole story or by showing you only what they want you to see.