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Post by blockhead on May 31, 2007 12:33:28 GMT -6
I am a newbie to this site and this is my first post. What are your thoughts on the rear wheel location being .625 from the rear of 2 cars but 1 car has a short wheel base (4.750 ) the 2th car has a long (5.750 )wheel base ? both cars are 3 wheel with good alignment on both. Track length 42 to 48' thank you sorry on the typo on the rear axle location
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Post by Barga Racing on May 31, 2007 14:45:27 GMT -6
I am a newbie to this site and this is my first post. What are your thoughts on the rear wheel location being 1.625 from the rear of 2 cars but 1 car has a short wheel base (4.750 ) the 2th car has a long (5.750 )wheel base ? both cars are 3 wheel with good alignment on both. Track length 42 to 48' thank you In theory the short wheelbase should outperform the long wheelbase but in reality the long wheelbase usually wins out, especially on a long track, because of stability. My first thought is "Why are you putting the rear wheels at 1.625?" Is that a typo? with back wheels at 1.625 and wheelbase of 5.75 you are already over 7 inches without even allowing for wood in front of your front wheels.
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Post by blockhead on May 31, 2007 18:38:39 GMT -6
sorry on the typo for the rear axle location it should have read .625 (5/8") not 1.625 thank you for your post reply Barga Racing Blockhead
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Post by DerbyDoc.com on Jan 12, 2008 22:59:34 GMT -6
In theory the short wheelbase should outperform the long wheelbase but in reality the long wheelbase usually wins out, especially on a long track, because of stability. What theory says the short wheel base should out-perform the long wheel base on a straight-a-way?? Less weight towards the front of the car is a theory
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Post by Lucky 13 on Jan 13, 2008 0:25:13 GMT -6
The short wheel base car is on the incline longer do to the fact that the front wheels are farther back which gives it more time to fall. Usually though what you gain on the incline is lost on the straight with a short wheel base because of loss of stability.
Lucky 13
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Post by badger on Feb 1, 2009 14:21:13 GMT -6
I have a question. Do you think by the rule provided that we are able to drill our own holes? I believe the rule just states the the wheelbase distance. what's your take.
"Wheelbase must be kept stock as furnished on the block of wood. This dimension is 4 3/8 inches."
Also, I ordered the pro body tool already but havent received it yet. What would be a good thickness for the block itself while still using the tool at a later date after cutting. We plan on making a basic rectangular pattern.
Thanks for the help! Dan
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Post by roosclan on Feb 1, 2009 22:38:09 GMT -6
I have a question. Do you think by the rule provided that we are able to drill our own holes? I believe the rule just states the the wheelbase distance. what's your take. "Wheelbase must be kept stock as furnished on the block of wood. This dimension is 4 3/8 inches." Also, I ordered the pro body tool already but havent received it yet. What would be a good thickness for the block itself while still using the tool at a later date after cutting. We plan on making a basic rectangular pattern. Thanks for the help! Dan That sounds to me like they expect you to use the slots since it is "as furnished on the block." What you can do is cut off part of the back and glue it to the front so that your rear axle is 5/8" from the rear. Do this first, before cutting out the shape of the car. You really want to use the Pro Body Tool before you cut out your shape, since you will need the rest of the block to mark where your axle slots are. The Pro Body Tool will put the axles holes right at the top of the slot, so drilling your own hole won't even be noticeable.
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