Neat 1/4 mile time calculator based on hp/weight

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Jan 20, 2010 | 04:13 PM
  #1  
Found a neat little calculator.

http://robrobinette.com/et.htm?weigh...66790303569441

I put in 3600 for the weight of the c55 and 315hp to the ground, which is what I dynoed at, and it calculated the quarter mile time of 13.1xx which is what I pulled at the strip. The only discrepancy is that it uses 17% drive train loss, whereas ours is 18% or more...so use your whp if you can.

So, after the kleemann header/ecu install it looks like I'll be running mid 12's!

BTW the car is just about done from the shop, I should be able to pick it up tomorrow!!!
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Jan 21, 2010 | 12:51 AM
  #2  
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Jan 22, 2010 | 06:47 PM
  #3  
Quote: Found a neat little calculator.

http://robrobinette.com/et.htm?weigh...66790303569441

I put in 3600 for the weight of the c55 and 315hp to the ground, which is what I dynoed at, and it calculated the quarter mile time of 13.1xx which is what I pulled at the strip. The only discrepancy is that it uses 17% drive train loss, whereas ours is 18% or more...so use your whp if you can.

So, after the kleemann header/ecu install it looks like I'll be running mid 12's!

BTW the car is just about done from the shop, I should be able to pick it up tomorrow!!!
If I do mine and extrapolate back with a weight of 3600 for the C32 and a qtr of 12.75, its says I have about 345 HP RW? Can that be correct??
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Jan 22, 2010 | 08:23 PM
  #4  
Quote: If I do mine and extrapolate back with a weight of 3600 for the C32 and a qtr of 12.75, its says I have about 345 HP RW? Can that be correct??
I think you might have slightly more? Considering they factor in a 17% drivetrain loss whereas our cars, from what i've been told, are about 18%.
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Jan 23, 2010 | 11:36 AM
  #5  
That calculator may be a little off. It says I make 568whp lol
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Jan 24, 2010 | 12:58 AM
  #6  
Here is another one based off quarter mile time and trap speed. I used this to figure HP on an old Pontiac I had a 1/4 miles slip from the old Carlsbad track. Pretty accurate.

http://www.boostcontroller.com/display_page.php?i=16
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Jan 27, 2010 | 11:59 AM
  #7  
Quote: That calculator may be a little off. It says I make 568whp lol
Quiet out East there!! We all know what you make, so pipe down
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Jan 27, 2010 | 12:01 PM
  #8  
Quote: Here is another one based off quarter mile time and trap speed. I used this to figure HP on an old Pontiac I had a 1/4 miles slip from the old Carlsbad track. Pretty accurate.

http://www.boostcontroller.com/display_page.php?i=16
Cool, I did that one as well and it says between 343 and 369, so these must be "pretty close."

Glenn
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