302 throttle body Reply #15 – January 17, 2008, 04:06:55 PM Quote from: V8Demon;198373As stated above the truck manifolds flow more air.Wouldn't all 5.0L engines flow the same amount of air?2.5 liters per revolution of the crank. Quote Selected
302 throttle body Reply #16 – January 17, 2008, 04:31:02 PM Quote from: softtouch;198378Wouldn't all 5.0L engines flow the same amount of air?2.5 liters per revolution of the crank.That's where volumetric effeciency comes into play.;) You can get more air in and out of a motor. With enough fuel to support it, you can make that engine have more power. You can also set it up to have good power at differing RPM ranges. This is why there are so many different approaches as to getting the same results. Quote Selected
302 throttle body Reply #17 – January 17, 2008, 05:39:53 PM Quote from: V8Demon;198382That's where volumetric effeciency comes into play. Yup, race engines with well tuned induction and exhaust systems, actually have more than 100% VE...As for the dual throttle body, IF it's so great why did they go with a single TB and GT-40 intake on the 351 Lightnings??? Well I'll tell you this much... Cause 351 Truck manifolds SUCK(and I don't mean air)...With the small runners and sharp curve in the lower a good 5.8 will be choking at 4000 rpms... I gave one to the s guy a couple years ago... Quote Selected
302 throttle body Reply #18 – January 17, 2008, 06:06:56 PM QuoteIF it's so great why did they go with a single TB and GT-40 intake on the 351 Lightnings??? Less concern for towing capability? More emphasis on E.T's? Quote Selected
302 throttle body Reply #19 – January 17, 2008, 07:45:49 PM Quote from: V8Demon;198414Less concern for towing capability? More emphasis on E.T's?Sounds good to me... LOL Quote Selected
302 throttle body Reply #20 – January 22, 2008, 05:22:21 PM Whew!! Tried reading-up on volumetric efficiency. I'm going to leave that to the experts. Quote Selected
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