Quote:
Originally Posted by Stang's Bane
If this is going on a stock cubed LS2, fast will be hard to beat. The sheetmetal looks killer but driveablity will suffer greatly. That manifold begs for as many rpm as you can throw at it.
A really good compromise is a Wilson Billett. Stays even with a fast at lower rpms and pulls away up top. Looks pretty sweet also.. Just my $.02 Good luck!!
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Having followed dyno results of hundreds of combos on LS1tech and Corvetteforum, I would agree that for max power over the 3500-6800 RPM range, the FAST is very hard to beat on the smaller displacement normally aspirated LSx motors. Wilson had the luxury of investing big engineering time to do CFD and other analysis, and then optimize the runner shapes in injection molded plastic, so it shouldn't be surprising that it works so well. Some porters - Tony Mamo of AFR, for instance - will lightly port the FAST and get a few to 10 or so more HP out of it, if you want to spend some bucks chasing the last bit of power. And if you want to spend $3K for maybe the ultimate single throttle street intake, the same Wilson guys who designed the FAST will sell you the Wilson Billet intake Stangs Bane mentions.
The sheet metal intakes are often compromised by not having sufficient hood room to allow long enough runners for a street engine. The result is better power at very high RPM - say, 6500 and up - but serious damage to the midrange torque bump that makes these motors feel bigger than their cubes.
But the Hogan sure looks nice, and will very likely work better in forced induction applications than the LS6 or FAST intakes.