Originally posted by rozwell911:1. Take you 300 Wheel HP and add (low number to be safe)15% = 345HP to the engine of a contour.
2. Now your 340 for the M5 add 15% (just to make it equal) you get 391hp. so you need about an extra 50 Flywheel Hp to match a M5.(less because our cars are lighter say 40hp)
3. But in actuality 18% is more accurate for the BMW's so 340 + 18%= 401hp so you need about 60 Hp extra (to be safe) to walk over a M5. Any l;ess than 50hp is cutting it close.
1. That is a low number. Also WHY use crank numbers. They are pretty meaningless. Power to the ground is the only thing that really counts vs a guesstimate of what is at the crank!
2. You are saying that being 1000lbs lighter is only worth about 10HP. You are nutz! Try around 100-120 "crank" HP & TQ!
3. Now you are giving the BMW an advantage in your guesstimate. Why???
BTW - MTX-75 losses are ~17-18% so if you wanted to guesstimate crank power number you would add ~22% or divide by .82
2000 SVT #674
13.47 @ 102 - All Motor!
It was not broke; Yet I fixed it anyway.
