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Old 02-17-2001, 09:04 PM   #1
garface
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Post Why do fwd cars have wheelie bars?!?

I've been seeing a lot of drag cars, mostly Civics which are front wheel drive but have the wheelie bars in the back. Why would they need these, wouldn't that just be added weight. Oh yea, and for the scooby content, someone with a stock cd player please punch with moderate force right next to it. On it's right while playing and tell me if it skips. Thanks.
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Old 02-17-2001, 09:08 PM   #2
Frank
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My understanding of the bars is that by lifting the back up the back wheels are lifted up and this places more weight on the front wheels. Since the car can lurch backwards the torque has only one outlet (the ground). This is my understanding of the fiasco, last i heard they banned the usage of wheelie bars in the major classes.
~Frank
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Old 02-17-2001, 11:58 PM   #3
HpiRally
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Post

Frank you are absolutly right. The wheelie bars actually lift the rear end up and put more weight on the nose. I have actually heard of cars and designers creating computer ones that as the car goes down the track it slowely lowers the drag bars in order to get better drive, but who knows when you are talking Honda's. I dont know if they are banned, I did see the RX7 do a high 9 quarter mile with them on on saturday on Tv, so I dont know if they banned them.
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Old 02-18-2001, 12:42 AM   #4
Steve Theodore
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Cool

Another thing it does is effective give the car a longer wheelbase. I've read that in one of the Turbo magazines where they discussed the benefits of the wheelie bars.

Steve
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Old 02-18-2001, 01:06 AM   #5
slidewaysmike
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Post

It also makes them look stupid.
He-He

Just Joking.

Mike
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Old 02-18-2001, 01:57 AM   #6
Keiho
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Guys, the Hondas that have the wheelie bars need them to gain better traction, yes, by "pushing" the front wheels down, but also because those motors are pushing out so much power that the car lifts up and the wheelie bars just keeps the whole car planted down. It is very much functional.
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Old 02-18-2001, 06:14 AM   #7
ivbdn
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Keiho's right. They are quite functional. You guys gotta watch more of the junk they've got on SpeedVision. IIRC, they banned them on some tracks because they put so much pressure in such a small area that it would ruin the track.
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Old 02-18-2001, 09:34 AM   #8
TurboDude390
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Question

If they put too much pressure into a small area are the sanctioning bodies going to ban them on top fuel cars, pro stocks and in other classes as well? I mean, lets get real here: top fuel engines make in the excess of 2000 horsepower, or so these guys say. I would think that the top fuel cars transfer way more pressure onto the track than a 600 horsepower Honda would.
Sounds to me like the sanction bodies are trying to limit how quick these things can run.
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Old 02-18-2001, 10:41 AM   #9
JC
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HpiRally, I doubt the RX7 had the type of bar being discussed here. It probably had a real wheelie bar. Lifting the rear wheels off the ground in an RX7 would be pretty stupid.
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Old 02-18-2001, 10:46 AM   #10
DeliciouSpeed
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Post

Preloaded bars are banned. Thats it.

Ken
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Old 02-18-2001, 10:48 AM   #11
Midwayman
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If I remember top fuel right, their wheelie bars dont touch the ground at a stop. The honda ones preload the front suspension...
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Old 02-18-2001, 10:49 AM   #12
T-WRX
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The bars can also help keep the car from going airborne at speed.
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Old 02-19-2001, 06:06 AM   #13
Marquis
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Post

Top Fuel cars (as well as funny cars) make *way* more than 2000 horsepower, more like 6000+.
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Old 02-19-2001, 07:22 AM   #14
Hades69
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Post

I own a honda CRX and have done some resaerch on this if you let off the clutch real hard (liek popping it) the car has a tendency to buck. and when a car with say 350-450+ HP does this it loses a lot of traction so they put wheelie bars on it to make sure that the buck is minimal and they keep traction
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