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Author Topic: FED Build  (Read 13216 times)

Offline lake_harley

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  • Your Best Time: 7.06 @99.58 - 1/8 mi.
  • Your Engine: Carbureted, gas mild 305 Chevy
  • Your Track: Jeffers Motorsports Park - Sikeston, MO
  • Your Vehicle: 145" FED
  • General Location: SE Missouri
Re: FED Build
« Reply #30 on: December 29, 2021, 03:47:30 PM »
Mild steel. It's for forward of the mid plate and ordered .095", which my junior engineer calculations came up to being about 3+ times heavy enough to handle the stress on my relatively short (145") WB car. I expect a delivery of .095" DOM tube tomorrow to replace the w-a-y thin walled tubing I got first, and I'm confident the DOM will be within spec.

I'm using all .120" DOM for the cockpit/cage area which I've been putting together as time permits over the last couple days. I've checked every piece of tubing I've used so far and it's all checking .121" to .122" wall, so I should be good on the .118" requirement. My pile of tubing is starting to resemble the back half of a FED! :)

Lynn
« Last Edit: December 29, 2021, 03:49:43 PM by lake_harley »
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Offline lake_harley

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  • Your Best Time: 7.06 @99.58 - 1/8 mi.
  • Your Engine: Carbureted, gas mild 305 Chevy
  • Your Track: Jeffers Motorsports Park - Sikeston, MO
  • Your Vehicle: 145" FED
  • General Location: SE Missouri
Re: FED Build
« Reply #31 on: January 15, 2022, 11:00:14 AM »
OK...Let's see if I have this photo posting figured out.

If a photo should magically appear, it's the progress on my FED chassis as of the end of yesterday, Friday. I must say, it was pretty exciting to see the chassis actually starting to look like something! Chassis is all tacked, but there is still a lot to do before welding time. I settled on 145" wheelbase.

FWIW....I'm the ruggedly handsome gentleman posing shamelessly for the photo. 8)

Lynn
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Offline JEFF/21C

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Re: FED Build
« Reply #32 on: January 15, 2022, 12:19:01 PM »
looking keep, it up
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Offline tcoupekyle

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  • Your Best Time: 4.70 1/8
  • Your Track: Houston Motorsport park
  • Your Vehicle: 225" slip joint FED
  • General Location: Houston
Re: FED Build
« Reply #33 on: January 15, 2022, 01:37:59 PM »
Awesome!! Looks super cool
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Offline crider

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Re: FED Build
« Reply #34 on: January 15, 2022, 06:29:21 PM »
Looking great!
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Offline THE FRENCHTOWN FLYER

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  • Your Vehicle: (3) Advanced Chassis altered , The Last Logghe altered, '30 RPU
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Re: FED Build
« Reply #35 on: January 15, 2022, 06:47:02 PM »
Nice!
If you do as good a job on the body as you did on the frame it will be great.
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Offline lake_harley

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  • Your Best Time: 7.06 @99.58 - 1/8 mi.
  • Your Engine: Carbureted, gas mild 305 Chevy
  • Your Track: Jeffers Motorsports Park - Sikeston, MO
  • Your Vehicle: 145" FED
  • General Location: SE Missouri
Re: FED Build
« Reply #36 on: January 15, 2022, 08:09:21 PM »
Thanks gentlemen! I appreciate the kind words. It's certainly one of those projects that will/would be easier, and quicker, the "next" time than it was the first time.  :)

Lynn
« Last Edit: January 15, 2022, 08:26:41 PM by lake_harley »
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Offline Finnish Fireball

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Re: FED Build
« Reply #37 on: January 17, 2022, 01:05:38 AM »
Looks good! Both the frame and the fabricator ;D
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Offline janjon

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  • Your Vehicle: '65-ish 150" SBC/Glide FED
Re: FED Build
« Reply #38 on: January 20, 2022, 04:41:55 AM »
You are indeed a ruggedly handsome individual; the chassis is looking good as well. Which welding process are you using?
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Offline lake_harley

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  • Your Best Time: 7.06 @99.58 - 1/8 mi.
  • Your Engine: Carbureted, gas mild 305 Chevy
  • Your Track: Jeffers Motorsports Park - Sikeston, MO
  • Your Vehicle: 145" FED
  • General Location: SE Missouri
Re: FED Build
« Reply #39 on: January 20, 2022, 05:33:08 AM »
 ;D Just my good looks should intimidate a lot of the competitors! ;)

Welding will all be done with TIG. I'm not certified, but consider myself a competent welder. Since it's DOM I could use MIG, but with TIG I feel I can see the puddle and penetration of the welds much better.

Lynn
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Offline Paul New

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  • Your Best Time: 6.47 @ 214 MPH SBC
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Re: FED Build
« Reply #40 on: January 20, 2022, 08:03:09 PM »
Cars looking great nice work
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Offline lake_harley

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  • Your Best Time: 7.06 @99.58 - 1/8 mi.
  • Your Engine: Carbureted, gas mild 305 Chevy
  • Your Track: Jeffers Motorsports Park - Sikeston, MO
  • Your Vehicle: 145" FED
  • General Location: SE Missouri
Re: FED Build
« Reply #41 on: January 23, 2022, 07:10:06 PM »
As I was fitting the chassis together the SBC fuel pump cleared the top frame tube (Yay!), but when i added the vertical near the front of the engine and the diagonal along the side of the engine the pump interfered with fitting the diagonal. I have considered cutting and building in a 1/4" to 3/8" "relief" to the inner side of the tube for fuel pump clearance but fear compromising the diagonal. The offending diagonal is 7/8" diameter.

I'd love to do fuel injection at some point and a belt or cam drive pump might be in the future, but for now I'd like to keep it simple, carbureted, and use a diaphragm pump if possible. I really don't like the thought of an electric pump in the event of something going really wrong during a pass.

I'd like to get some input from the voice of "the experienced" here.  ;)

Lynn
« Last Edit: January 23, 2022, 07:37:12 PM by lake_harley »
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Offline Curly1

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Re: FED Build
« Reply #42 on: January 23, 2022, 07:38:28 PM »
Electric fuel pump is fine for carbs. If you are concerned about the safety you may consider doing like I did. I have a manual shut off in rear of the car but I also have and electric one that I can shut off master power from inside in an emergency. When I get to the track I turn the main power on in back of car and leave it on until I load it up at end of the day. During the day I use the interior master to shut down power. That way I am not jumping in and out of car to turn on power.
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Offline Finnish Fireball

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  • Your Best Time: 4.69 / 147 mph 1/8 mile
  • Your Engine: 540 cid BBC 8-71 Hampton e85
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  • Your Vehicle: Fireball Slingshot
  • General Location: Finland
Re: FED Build
« Reply #43 on: January 23, 2022, 10:42:39 PM »
Nothing wrong or unsafe with electric pump. Lots of safety options available. Kill switch in cabin is a must, theres roll-over switches that cut the power if upside down etc. I'd rather do that way and leave the tubing alone.
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Offline lake_harley

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  • Your Best Time: 7.06 @99.58 - 1/8 mi.
  • Your Engine: Carbureted, gas mild 305 Chevy
  • Your Track: Jeffers Motorsports Park - Sikeston, MO
  • Your Vehicle: 145" FED
  • General Location: SE Missouri
Re: FED Build
« Reply #44 on: January 24, 2022, 06:34:00 AM »
Granted the pump question was still quite a way down the road in construction but I like to get things settled in my mind as I think of them. Thanks! A electric fuel pump would certainly be the simple solution with a "master" kill switch to cut all power easily in driver's reach is the way to go. From the master switch power would then go to the fuel pump and ignition. For the master in the cockpit I'm thinking either a switch with a large red "push off" button or maybe one of those "aircraft" switches that have the flip cover that could easily be slapped down to kill all power? I'd also use a battery master switch at the rear of the car and assume that should be a heavy battery disconnect cabled all the way to the back and then go forward to the starter main lug, correct?

Lynn
« Last Edit: January 24, 2022, 06:37:00 AM by lake_harley »
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