Because weight is important, it would be good to know how much a part weighed. For instance, what is the weight of a tholen upright? What is the weight of a shohr upright? How about brake callipers: AP Racing, Wilwood, Brembo? If you have a compenent, weigh it and let us know how much it weighs so we can compare.
How much do components weigh?
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 Unregistered(d) |
How much do components weigh? |
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Posts: 0 12/03/01 22:25:58 |
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Tom Clayton |
Re: How much do components weigh? | #1 | ||
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Registered User
Posts: 2256 12/05/01 03:25:11 |
Shalo,
This would be a very large list. There are literally hundreds of parts on each car. When you consider the various brands and models of a given component, a complete list would have thousands of entries. Your example of brake calipers alone is a great example. Each manufacturer make several models - two pucks or four. Even a given model, like the Wilwood Dynalite 2, can come in cast and billet varieties. This is a monumental task! |
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Lee Stohr |
Weight | #2 | ||
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Posts: 974 12/05/01 14:06:34 |
I remember this topic somewhere else on the Forum. I listed weight for a bunch of stuff.
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Unregistered(d) |
weight | #3 | ||
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Posts: 0 12/06/01 00:08:31 |
I couldn't agree with you more Tom. It is a monumental task. And it is quite probable that as this thread grows, some adjustments will have to be made in classifying the components. And yes, there are many components on a car but for now we can stick to some of the major ones that racfers look at like wheels, calipers, uprights, etc. Also, some of the major compnents such as engines and trans can be bunched up. I dont think anyone is going to be overly concerned with the weight of a stearing wheel but unsprung weight is a consideration. After asll, this is a web site for the car builder. :-)
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tomrobertson |
wheel weights | #4 | ||
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Posts: 120 12/06/01 10:58:54 |
Wheel weight is one area of significance due to rotating mass/ flywheel effect and unsprung weight. The lightest wheels are Kodiak, OZ racing, and a few others such as Techno, Jongbloed, Jon Horgas's wheel's. All are about the same, 6"-7lbs., 8"-8lbs., 10"-9lbs. Most cast aluminum wheels weigh 4-6lbs. more per wheel.There is also a significant weight difference in race tires. A front Goodyear 20x6x13 on 6" rim vs. a front Avon radial 21.6x8x13 on 8" rim is about 5lbs.However, choosing race tires on the basis of weight should not be the primary consideration. The bottom line is that your car weight could vary by 50# based on your choice of wheels and tires. Tom
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David Ferguson |
The heaviest component | #5 | ||
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Posts: 1291 12/06/01 13:19:46 |
The heaviest component in most DSR's is the driver. Fortunately modifications are permitted -- thank goodness there still is no "flat bottom" rule for this component.
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Lee Stohr |
Weights | #6 | ||
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Posts: 974 12/07/01 01:07:53 |
Here are some weights from the previous similar discussion under car building:
Wheels, 7lb for ~$400 each. 10lb for ~$150 each. Steering rack and end joints, 5lb Swift DB5 aluminum tub with roll hoop, steering rack and column, no engine bay tubes, 141 lbs Brake rotors, solid, drilled, .38tk, 4.8lb Brake rotors, vented, .75tk, 6.6lb Steel tube FF chassis, 90 to 110 lbs Tilton master cylinder, no reservoir, 1.16lb Steering wheel w/ SPA quick release, no column, 1.5lb Hollow rear halfshaft, 3lb Brake pedal, 12oz Front upright, aluminum, with steel hub & brg, 6lb Quaife/Taggart Diff w/o plates, 16lb Beasley type diff, w/o plates, 8lb Penske shock 2.5lb no reservoir |
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Unregistered(d) |
Brake Components | #7 | ||
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Posts: 0 12/14/01 19:15:50 |
Wilwood Calipers:
Dynalite II (4 piston)................................ 2.7 lbs Dynalite II Billet ......................................2.5 lbs Dynalite single (2 piston) .........................1.4 lbs Dynalite single floater ..............................1.4 lbs Billet SPOT ............................................1.2 lbs AP Racing Calipers: General Caliper up to 13" (4 piston) ............3.5 lbs Part # 4567-10s4 2 Piston Road ...........................................3.3 lbs Wilwood Brake Rotors: (no hat) 10" x .32" Solid ........................................5.2 lbs 10" x .32" Drilled ......................................4.9 lbs AP Racing Rotors: (integrated hat) 10" x 9.7mm (about .38") ...................3.3 kg/7.1 lbs 248mm x 7.1mm ...............................2.4kg/5.28 lbs |
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