how much power do you loose?.....
01-24-2005, 01:32 AM
#21
3.0 BAR
Join Date: Aug 2003
Posts: 3,930
Re:how much power do you loose?.....
Originally Posted by Cray91
Originally Posted by Spenser
Originally Posted by fsufan814
Originally Posted by Spenser
quarter mile times mean nothing 
Times on a standard track are better than just hp and top speed numbers IMO.
01-24-2005, 02:16 AM
#22
1.5 BAR
Join Date: Aug 2003
Posts: 1,194
Re:how much power do you loose?.....
Drivetrain loss is NOT a percentage, never ever.
If your drivetrain loss is actually 20hp (and no, these coastdown tests are bullshit) and you are putting for example 200hp to the wheels. Put in a 50 shot of nitrous and you will pretty much make 250hp at the wheels. Hence drivetrain loss is purely a factor of speed and not torque.
Dyno dicks usually boost up their bullshit numbers by percentaging drivetrain loss. I can very much assure you that a 2000hp top alcohol dragster is not losing 200hp+ in the transmission. If that was the fact then the gearbox would pretty much boil all the oil in every run. I'm talking about a manual box here with no cooling at all.
If your drivetrain loss is actually 20hp (and no, these coastdown tests are bullshit) and you are putting for example 200hp to the wheels. Put in a 50 shot of nitrous and you will pretty much make 250hp at the wheels. Hence drivetrain loss is purely a factor of speed and not torque.
Dyno dicks usually boost up their bullshit numbers by percentaging drivetrain loss. I can very much assure you that a 2000hp top alcohol dragster is not losing 200hp+ in the transmission. If that was the fact then the gearbox would pretty much boil all the oil in every run. I'm talking about a manual box here with no cooling at all.
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