Originally posted by Micah:
1. every pound added to the crank is something like 2.25hp loss or gain if you lose a pound.
2. 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
1. Not remotely close. Diameter plays a huge factor in the effect of the weight/mass. So does gearing. There is no set number nor could there be because of the infinite variables.
2. The DMD is ~1lb heavier than stock. I have no clue where you heard 4lbs, but I weighed the SHO unit, stock & the DMD on a digital package metering scale back when I first got the DMD. (you can search the archives for the exact post too)
Also your .5 second slower claim does not take unto account the DMD run started from 2400rpm and the previous run 2700rpm. That's a 300rpm difference; easily .5 seconds. Matter of fact using an average time for 300rpm that is around 1 full second making it .5 seconds faster in acceleration!
Plus since the DMD stops the crank from flexing it easily could make more power gaing back that what is normally lost to high rpm crank flex. This is well within logical reason.
