Hi, Guest
10-20-2005, 11:56 PM
I PSI is peanuts tho... 1 PSI is something that you're close to "Creating" with a well-flowing intake anyways. Well not quite, but you get the idea. A higher-flowing intake that supplies as much air as the vacuum of the engine requires is really limited to the actual flow of the intake manifold or the throttle body.
If it takes how many pounds for even the lightly-boosted Focuses here to make any real power, divide the real HP gain by the amount of boost and you'll have a very weak way to calculate HP per lb. of boost.
What will happen here is that the SPI might pick up a bit of bottom-end as you're filling only half the intake runners below 3200RPM, but once those butterfly valves open at 3200, you're filling the second set of intake runners as well and the operating efficiency of said mod is cut in half.
I don't think it's worth attempting.
If it takes how many pounds for even the lightly-boosted Focuses here to make any real power, divide the real HP gain by the amount of boost and you'll have a very weak way to calculate HP per lb. of boost.
What will happen here is that the SPI might pick up a bit of bottom-end as you're filling only half the intake runners below 3200RPM, but once those butterfly valves open at 3200, you're filling the second set of intake runners as well and the operating efficiency of said mod is cut in half.
I don't think it's worth attempting.
Daily driver 1: 2007 Jeep Wrangler Unlimited Sport "S"
33" BFG Mud-Terrain KM2s, lots of Rough Country gear - bumper, 2.5" lift, swaybar disconnects, Superwinch 10,000lb winch, Detroit Locker in rear D44 axle, custom exhaust, K+N filtercharger, Superchips-tuned.
Daily driver 2: 2006 Subaru Legacy GT
COBB Stage 1+ package - AccessPort tuner, COBB intake and airbox. Stage 2 coming shortly - COBB 3" AT stainless DP and race cat, custom 3" Magnaflow-based exhaust and Stage 2 COBB tune.
33" BFG Mud-Terrain KM2s, lots of Rough Country gear - bumper, 2.5" lift, swaybar disconnects, Superwinch 10,000lb winch, Detroit Locker in rear D44 axle, custom exhaust, K+N filtercharger, Superchips-tuned.
Daily driver 2: 2006 Subaru Legacy GT
COBB Stage 1+ package - AccessPort tuner, COBB intake and airbox. Stage 2 coming shortly - COBB 3" AT stainless DP and race cat, custom 3" Magnaflow-based exhaust and Stage 2 COBB tune.