Originally posted by Micah:
still cant happen, you must have done some mods or something. you cant and I will repeat cant gain power by adding weight at the crank. every pound added to the crank is something like 2.25hp loss or gain if you lose a pound. maybe I shouldnt say gained but freed. the dmd is like 4lbs heavier then stock which means pretty much 9hp is lost by doing a dmd, if the 2.25 calcs are right.
Micah
Sorry but this is all wrong!
First each pound is not worth a 2.25 pound loss. It is variable depending on what the radius is (larger radius = each pond hurts more like a flywheel, small radius ..like the DMD less power loss). Also depends on what gear you are in.. more difference in first with more inertia to overcome, less in 4th gear where we dyno. Hense, a light flywheel may feel like alot more power down in low gears but on dyno only few if any HP gain.
second, the DMD is exactly 1 lb heavier than stock not for. It may be 4 lbs heavier than a aluminum UDP which is also underdriving accessories..so going from a UR pulley to DMD..you will feel that! I can understand some reluctance to give that up if already installed. This has been debated extensively.
As to "you can't add power when adding weight to crank", I would ask this...how much power do you lose vibrating the engine, as opposed to sending it to the flywheel?? You cant possibly say none, the engine weighs 300+ lbs and you are ossilating it back and forth at a high rate of speed! No one yet has not felt less vibration with DMD. How much loss, I have no idea..but I can easily see gaining an HP or 3 with DMD, as demonstrated by HisSVTs dyno. Of course, dyno variability could account for that. Maybe it just cancels out the small weight gain. But power loss, I seriously doubt it.
I saw this late, just wanted to set record straight..as this is getting quoted on other posts.
