SHughes
Newbie
 Offline
Age: 35
Location: Waldorf, MD
Posts: 12
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« Reply #30 on: April 09, 2010, 10:05:35 AM » |
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Not to high-jack the thread, but this is a great topic and I LOVE the formulas. IF they are accurate, I need far less power to meet my goals than I previously thought.
And power is certainly not the problem I have...it's money to make the truck safe to drive that's the problem.
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agrassfidf
Newbie
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Posts: 33
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« Reply #31 on: May 12, 2010, 10:28:00 PM » |
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Is there a formula that involves weight, or does that not matter when you already have hp and top speed? Is there a reasonably accurate formula for motorcycle?
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LSR Mike
Sr. Member
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Age: 55
Location: Dublin, Ohio USA
Posts: 421
First Pass-June 25, 2000; Muroc Dry Lake
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« Reply #32 on: May 13, 2010, 11:49:32 AM » |
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Dr Mayfield, Mayf, for all the Listers, has a site with many specifics including the Cd, frontal area etc... of many production cars and trucks, along with simple explanations... http://www.mayfco.com/dragcoef.htm |
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« Last Edit: May 13, 2010, 11:51:48 AM by LSR Mike »
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Mike M.
#847 F/BMMP
BNI/ECTA
ECTA Record Holder/Bonneville Record Holder
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1212FBGS
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« Reply #33 on: May 13, 2010, 02:55:59 PM » |
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theoretical vehicles set theoretical records every theoretical time.....
Kent
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Seldom Seen Slim
Administrator
Hero Member
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Age: 64
Location: Skandia, Michigan
Posts: 7323
Nancy -- 201.913 mph record on a production ZX15!
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« Reply #34 on: May 13, 2010, 03:04:09 PM » |
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Kent, you should add that you're speaking theoretically, I theorize.
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Jon E. Wennerberg
a/k/a Seldom Seen Slim
Skandia, Michigan
(that's way up north)
2 Club member x2
Owner of landracing.com
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Peter Jack
Hero Member
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Age: 68
Location: Calgary, Alberta
Posts: 1652
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« Reply #35 on: May 13, 2010, 04:24:21 PM » |
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My avatar shows Tok, a 100# Alaskan Malamute.
He's the one who runs everything around here.
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desotoman
Hero Member
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Location: So Cal.
Posts: 1845
Temple's "Got'Cha"
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« Reply #36 on: May 13, 2010, 09:30:55 PM » |
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Dr Mayfield, Mayf, for all the Listers, has a site with many specifics including the Cd, f :evil:rontal area etc... of many production cars and trucks, along with simple explanations... http://www.mayfco.com/dragcoef.htmMike, He forgot Roadsters!!!!!!!!!!!!    Tom G. |
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"Got'Cha" was first run in 1974. Bill Temple entered both 2 clubs in 1976 with records in AA/BGR. At El Mirage 201.79 and Bonneville at 220.
In 1977 Greg Temple started driving "Got'Cha" and entered the El Mirage Dirty 2 club in 1979 @ 201.97. Greg went on to set two records at Bonneville, one in 1981 at 241.848, then in 1991 he set another record at 262.230
Bill and Greg were the first father and son to enter the El Mirage Dirty 2 club. They broke the D/BFR at Bonneville in 1981 @ 241 with top speed of 249. This record still stands today. In 1991 they set the A/BFR @ 262 which was later broke by Duane McKinney.
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Peter Jack
Hero Member
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Age: 68
Location: Calgary, Alberta
Posts: 1652
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« Reply #37 on: May 13, 2010, 09:59:31 PM » |
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My avatar shows Tok, a 100# Alaskan Malamute.
He's the one who runs everything around here.
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LSR Mike
Sr. Member
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Age: 55
Location: Dublin, Ohio USA
Posts: 421
First Pass-June 25, 2000; Muroc Dry Lake
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« Reply #38 on: May 24, 2010, 06:15:54 PM » |
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Interestingly enough Tom, I stole an old method from my high school Photography instructor to calculate the frontal area for #300. He was a Air Force Photo Intelligence Interpreter.
Shoot a pix of the of the intended vehicle with a known value object in the frame. From there you can calculate the frontal area of the vehicle. In Vietnam they knew what the bore of rifle the VC was carrying, therefore he could tell you what size shoe he (the VC) was wearing.
I have since lost the excel file I was working with to approximate the HP necessary to put that brick over the record, and we really never knew how much HP we were producing because the LSR tires would never hod traction on a chassis dyno. but alas, we know what happened to that engine...I still have some (very broken) parts of it in the "offering to the gods of speed" section of my LSR chapel.
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Mike M.
#847 F/BMMP
BNI/ECTA
ECTA Record Holder/Bonneville Record Holder
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