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On 29 May 2007 22:08:22 -0700, "Capt. Rob" wrote:
Why would anyone add a CAI system to a turbocharged engine? They only work for aspirated engines. For your set up you get absolutely no gain in hp or torque and it reduces the turbo life. The pressure differential on the turbo is less causing it to operate at higher rpm. The turbo winds up dumping all that extra air any how. Some even say the CAI tube retunes the intake and makes for even more problems for the turbo. What good are those springs without changing the struts? You're pretty much wrong on this. I've driven a LGT with these mods at the differences are easy to note, especially on the suspension tweak. The springs are designed to work with the stock struts. By the way, the CAI is sold by Subaru for the LGT along with the heat shield. So you're claiming Subaru is selling a part that will shorten turbo life in the face of the long extended warranty they offer? No one, not even the heavy modders seem to agree with you. Most exhaust builders reccomend a stock CAI on turbocharged cars and I will also be adding an exhaust. RB 35s5 NY You may wish to hire a suspension expert and go with a 16 setting Takico strut system for your car. That may be the only way you will see and understand a real difference. Visit a local track, have a knowledgeable and experienced driver take you out to show you the ropes. Playing race driver on public roads is dangerous and shows lack of judgement on your part. As far as your turbo goes, Subaru is famous for their undersized turbos. If you could provide some real dyno numbers for your setup it may then be a bit more objective. As far as turbo lifetime, as I said Subaru is notorious for being undersized. In fact, "heavy modders" replace the unit with one that is larger and higher quality. More horsepower means more work and stress by the engine components creating the horsepower. You don't get something for free. The $200 bolt on kits that you are playing with does change the performance of the car. There are subtle tradeoffs and you don't seem to be aware of any. As far as an exhaust system goes, the bottleneck is the turbo. You will never get a correctly tuned exhaust system on that car. It would be better to upgrade the turbo, upgrade the struts, wheels and tires. There you may be looking at 10K worth of mods for some real performance. Make sure you enjoy all that performance at the race track, not amongst average/poor drivers on their daily commute to work. Norm Howe |