Oh boy... thats gonna be a tricky jig:o

Tom

I have been running the polished aluminum intake tube from Motorsports Warehouse for a couple of years now. While it uses the stock plastic divided connection to the throttle body intakes, it replaces the corrugated tube that runs between that connection and the MAF. There was a thread a couple of years ago discussing whether or not this corrugated tube caused any significant pressure drop in the intake path. I did a calculation that indicated that air velocity in this pipe would be very high, approaching 2000 fpm. TomsSVX did a GTech "Before" run prior to his intake cam/5MT install on my car that indicated 178 hp at 5600 rpm. While that was only GTech and not a real dyno, it suggests that the stock intake tube of the SVX offers significant opportunity for upgrade and horsepower improvement. Anybody who is worried about conduction heat gain thru the pipe can just wrap it in foil and foam ductwrap, just like I did to my intake tube.

http://www.subaru-svx.net/photos/fil...lade/28926.jpg

Put me on the list for one of Kevin's new and improved models.:)

well I believe the removal of the "air box" that connects the snorkus to the throttle bodies is the cause of the gain here. But thats just me. Dan, I will see when I can fit in making another one

Tom

Tom:

I'm sure you are right that a lot of the pressure drop is in the "air box", but I also think that there is some drop in the snorkus, the removal of which may be why my stock engine was a little perkier than most.