The Supra will be tough for a first car. It's a lot of maintenance involved, or at least mechanical knowledge due to the fact that you'll need to prepare for things if something goes wrong, either due to previous owner neglect or just overall age and mileage. Also, turbo + RWD for a younger...
Yeah, bottom line, it IS a sound dampener, and while it may not help performance, it probably doesn't hurt it at all. There's no point in removing it unless you want to hear the intake, or you're trying to make everything "pretty and uniform" with a straight pipe.
Okay well, to clarify the Helmholtz resonator thing, according to theory, they are tuned for a certain frequency and they cancel out the oscillations from the airflow. This reduces the sound and reduces the turbulence in a way, which means it doesn't really impose a restriction and in some...
Ceramic coating isn't a bad idea, but wrap is cheaper, easier, and more accessible than the coating. Also, if you make the box out of aluminum, it'll be lightweight and won't rust, but the idea in general isn't bad.
I think there is such thing as "reflective heat wrap" which is supposed to keep out the heat really well, and it doesn't cost much. Sure, it won't look as good but it probably does a better job than Ceramic Coating does. Function > Form :)
A lot of those modifications don't even add power, and the ones that do won't be enough for 300 RWHP, maybe 300 crank horsepower. There is an N/A mod FAQ, but I don't really know if you read it, but a lot of these modifications and ideas have been discussed. It's really not worth it in the end...
I've got first hand experience of riding in a Supra with NA-T GTE electronics and a decent tune running an upgraded 61mm turbo at decent boost. Get high octane gas, a good tune, and you're good to go. Obviously you'll need to make share everything else is proper, like the headgasket, but if you...
It's worth it in the end if you're interested in having a faster car, but if you just enjoy driving the car the way it is now then it's not worth it. If you're a broke college student, it's not likely that you have an alternate form of transportation (daily driver) or easily disposable income...
I feel that the following thread is definitely going to be helpful to those looking for NA-T information:
http://www.supramania.com/forums/showthread.php?132513-My-7MGE-NA-T-Lots-of-good-pics-and-info
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