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Author
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Topic: How Much HP Loss From Crank To Rear Wheels
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FORD POWER
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Member # 7860
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posted
 
 
What is the percentage of HP that you would loose from your flywheel HP to RWHP?
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Car 4Sale
Posts: 126 | From: 408 | Registered: Aug 2007
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92stangLX
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Member # 3252
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posted
Depends on if it's a manual or auto. I think manual is like %15. Auto is more
Posts: 5302 | From: San Francisco | Registered: Sep 2003
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getjobdone
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Member # 4666
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posted
yeah, i have heard parasitic drivetrain power loss is something like 12-14% for manual and 15-17% for an auto.
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91 notch ^ blown h/c/i
Posts: 677 | From: east bay,ca | Registered: Jul 2004
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Stangs R Us
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Member # 4495
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posted
I usually figure 20% to be safe ![[Big Grin]](biggrin.gif)
Posts: 3100 | From: sacramento | Registered: Aug 2005
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SmokinLX
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Member # 1684
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posted
quote:
Originally posted by getjobdone:
yeah, i have heard parasitic drivetrain power loss is something like 12-14% for manual and 15-17% for an auto.
You would probably have to factor in the torque converter - lockup vs. non lockup on the auto also. With an auto Your best bet on guesstimated HP is to weigh Your car and get some MPH reading's at the strip.
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Dont claim power if ya cant mile per hour. 10 second AOD
Posts: 4388 | From: East Bay | Registered: Aug 2002
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Larry
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Member # 5176
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posted
Muscle Mustangs and Fast Fords did an article on this a few months ago..They ran the same car with a Std. Tranny and Auto Tranny.In this test the Std. lost lost more rwhp than the Auto.Alot depends on the Tranny.
According to the engineers At Mustang Dyno (I have a letter reflecting this info) the std loss is About 25% for both auto and std.Keep in mind your flywheel,drive shaft,rearend ,tire size all act on the rwhp ratings.
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FAST COBRA VERT.
Posts: 95 | From: Manteca | Registered: Jan 2005
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