Comments by "" (@neutronalchemist3241) on "Top Gear"
channel.
-
959
-
243
-
54
-
46
-
25
-
17
-
11
-
9
-
8
-
7
-
6
-
5
-
5
-
4
-
3
-
3
-
3
-
2
-
2
-
2
-
2
-
2
-
2
-
2
-
2
-
2
-
2
-
2
-
2
-
1
-
1
-
1
-
1
-
1
-
1
-
1
-
1
-
1
-
1
-
1
-
1
-
1
-
'70s specs reported SAE bhp (where the engine was not required to move the alternator, water pump, cooling fan...), that had to be lowered 10-15% to obtain current DIN bhp.
That said, the Ferrari lost very little, and probably only required a little tuning (the dyno run was made before even replacing spark plugs and liquids and, looking at the color of the oil they changed later, I bet filters were dirty too).
The Urraco had a more serious loss, but it was running on battery energy only, and that accounts for something too.
The Merak seized while running without coolant and with "0" oil pressure. Was clearly knocking, and It was a miracle it could still develop those 80 hp.
1
-
1
-
1
-
1
-
The dyno measures BHP to WHP loss by measuring the passive resistance of the drivetrain to rev the wheels. It's not a perfect measurement, but an acceptable approximation.
However, '70s specs reported SAE bhp (where the engine was not required to move the alternator, water pump, cooling fan...), that had to be lowered 10-15% to obtain current DIN bhp.
That said, the Ferrari lost very little, and probably only required a little tuning (the dyno run was made before even replacing spark plugs and liquids and, looking at the color of the oil they changed later, I bet filters were dirty too).
The Urraco had a more serious loss, but it was running on battery energy only, and that accounts for something too.
The Merak seized while running without coolant and with "0" oil pressure. Was clearly knocking, and It was a miracle it could still develop those 80 hp.
1
-
1
-
1
-
1