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proxlamus©

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Posts posted by proxlamus©

  1. Did anyone watch MythBusters on Discovery last night?!

     

    They covered a car in clay and made dimples on the car like a golf ball.. and there was a 11% increase i believe in fuel economy...

     

    They were joking saying Nascar will now have golf ball shaped cars...

     

    then I started wondering...

     

    Golf balls have been around for how many years?!

     

    Aircraft and Formula One and Nascar teams have all played with vortex generators... but why not shaping the whole body like a golf ball?!

     

    I mean the mythbusters test showed there was a dramatic increase in the reduction of drag?!

  2. I just bought a nicely priced set of Peltor A/O Safety ear muffs/hearing protection for $49 at Home Depot that has a built in AM/FM digital tuner and AUX input!!

     

    I will highly recommend them for working on and fabricating on a car!! Cuts out 22 db and has great music input. The AM/FM radio uses batteries.. but the AUX input from your iPod or MP3 doesnt require any batteries. The radio sucks flat out.. needs a better antenna.

     

    Combine this headset with your blackberry and pandora radio.. and its perfect.

     

    416DB-645uL._SS500_.jpg

     

     

    With my car on the rotisserie and working 3-4 hours at a time with a air chisel and 4 1/2" angle grinder it makes life a lot more relaxing.

     

     

    ** I'm not trying to sell this.. but if anyone is looking for a nice headset with hearing protection, its awesome **

  3. The car is fairly easy to rotate by hand.. standing in the middle of the car and grabbing around the door area... it requires a little bit of muscle...

     

    now the difficult part is when the car is directly on its side.. i literally stand on the frame rails and grab the door sill.. and stand on the car and *literally* jump up and down shifting my weight to rotate it... it was down right scary at first.. but its surprisingly strong and stable!! very surprising lol

     

    I removed my doors and its MUCH easier now!!

     

     

    Now that slotted offset I made helps quite a bit.. and it does make a difference. If I have the car off balance im screwed.. when the bolts were loose, the car slid down the slots.. and it took two guys to hop on the car and rotate it. ugh. So you have to be careful with those slots.. and make sure the bolts are TIGHT! eeep

  4.  

    DOM Tensile Stength = 70,000 psi

    Diameter (in) Thickness (in) ID (in) Cross Sect. Area (in^2) Tensile Strength (lbs) Weight (lb/ft)

    1.75 0.125 1.50 0.64 44,668 2.169 lb

    1.75 0.095 1.56 0.49 34,575 1.596 lb

    1.50 0.120 1.26 0.52 36,416 1.769 lb

    1.50 0.095 1.31 0.42 29,352 1.426 lb

     

    Wow thats a big difference in weight!! Looks like roughly 40 linear feet of 1.75 x .125 will weigh about 89 pounds versus the .095 wall.. which is 63 pounds!

     

    blah

  5. Well.. I'm getting ready to start buying the materials for my half cage.. and I'm running into a slight problem...

     

    Here are the required roll cage tubing requirements : (all mild steel)

     

    Rally America - Section 5.5 -

    DOM - 1.75 x .095

     

    SCCA - Section 9.4.1 (appendix G) -

    DOM - 1500-2500 pounds - 1.5 x .095

    Over 2500 pounds - 1.5 x .120 or 1.625 x .120 or 1.75 x .095

     

    NASA CCR - Section - 11.4.7 -

    DOM or ERW - Under 2000 pounds - 1.5 x .120

    2001 - 3500 pounds - 1.75 x .120

     

    NHRA - NHRA's FAQ website

    DOM - 1.625 x .120

     

    Hmm.. seems like if I ever want to explore and have a fun time in any of the sanctioned events.. I should probably go with a 1.75 x .120 DOM mild steel for any event!!??!

     

    My car is not a dedicated car to any sanctioned event.. just want to have fun.. but be SAFE

     

    What are most of you guys running?!

  6. Oh its crazy easy with a air chisel.. it knocks off fairly large chunks at once.. just sucks the chisel is so small.

     

     

    Seems to be more time consuming with a heat gun and scraping.. no thanks.. I dont want to stand there for 10 minutes heating and scrape away using a section the size of the chisel.

     

    As for dry ice.. how large are the chunks that pop off?!

     

    The toughest part is getting through all that nasty OIL that accumulated on top of the undercoating.. sticks everything together. The chunks are much smaller when covered and saturated in grimy oil.

     

    Here is an idea how large the chunks are that pop off.

    DSC07510.jpg

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