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Off Road SHO
 Post subject: Re: Low-Cost At-om VTEC
PostPosted: February 10, 2011, 9:08 pm 
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JonW wrote:
At my advanced age,


Then my age must be the retarded age...

Nice build. A modern day dune buggy for the street. Love it.

Tom

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Flipper_1938
 Post subject: Re: Low-Cost At-om VTEC
PostPosted: February 11, 2011, 11:26 pm 
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Off Road SHO wrote:
JonW wrote:
At my advanced age,


Then my age must be the retarded age...


That sounds familiar...except I think mine is the F'n retarted age. :lol:
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DJA
 Post subject: Re: Low-Cost At-om VTEC
PostPosted: February 20, 2011, 11:23 am 
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Posts: 2
The original At-om design & yours has the lower side tube of the chassis a third to half way up the side of the car. Did you ever consider adding a 3rd side tube at the bottom of the chassis? This might have eliminated a lot of the under structure for the seats, etc. & simplified the construction of the "under body tub".

Any comments on your thought process on this part of the design? I know that the additional weight would be a concern, but would there have been any advantages?

Thanks, Doug
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JonW
 Post subject: Re: Low-Cost At-om VTEC
PostPosted: February 20, 2011, 12:18 pm 
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There was no thought process involved. I was trying to replicate the shape/construction of the original car. The only changes were to the roll-over safety and the need for a real windshield. I like the look of the suspended cockpit pan
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Laminar
PostPosted: June 8, 2011, 12:00 pm 
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Joined: September 19, 2009, 12:33 pm
Posts: 498
JonW wrote:
Well I just passd a major milestone. My son and I bent the top tubes. We used a bar to keep the tubes from spiraling while rolling them through the bender. The bottom oak rollers lasted just long enough to finish the 4th tube. Bends are not perfect but they'll do. (Look like they were done by amateurs.) I'll have to make aluminum bottom rollers to bend any more tubes (for next car). Roll bar and windshield frame will be bent with JD2 die bender.

I anticipated this to be the most difficult phase of the build. It's a relief to have it completed. The rest of the frame should move quickly. About 80 more tubing notches to go.........


One thing I can't quite tell from these pictures - how did you prepare the front suspension box for attachment to the upper frame tubes? Did you somehow notch the corner of the suspension box so that it fit around the round tube?

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JonW
 Post subject: Re: Low-Cost At-om VTEC
PostPosted: June 8, 2011, 1:38 pm 
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I notched the main (2" dia) tubes to accept the front end of the front susp box. Same for rear box.
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Datdaz84
 Post subject: Re: Low-Cost At-om VTEC
PostPosted: August 9, 2011, 2:10 am 
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Joined: August 9, 2011, 1:26 am
Posts: 6
Location: Charlotte, NC, sometimes in Ohio
I just spent an hour reading through this thread. Inspiration for me to get my project rolling!
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john hennessy
 Post subject: Re: Low-Cost At-om VTEC
PostPosted: January 19, 2012, 7:10 pm 
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Location: meadview arizona
have you measured up the porsche running gear for roadster #3 yet, mid engined?

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JonW
 Post subject: Re: Low-Cost At-om VTEC
PostPosted: January 19, 2012, 7:22 pm 
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It's on the build table but there is no building activity. I'm collecting components between helping to liquidate my father's 15-car fleet. Engine/trans (2 liter) is a mock-up loaner.

I started some sketches with basic dimensions.

What dimensoions are you looking for?


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Earley Motorsports
 Post subject: Re: Low-Cost At-om VTEC
PostPosted: January 19, 2012, 7:27 pm 
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Location: Murfreesboro TN
Hey, do you have any more of those center steer racks lying around :lol: ?

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JonW
 Post subject: Re: Low-Cost At-om VTEC
PostPosted: January 19, 2012, 7:33 pm 
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914 rack, Ebay $80
kind of big and heavy
check back in a year
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Earley Motorsports
 Post subject: Re: Low-Cost At-om VTEC
PostPosted: January 19, 2012, 11:03 pm 
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Location: Murfreesboro TN
Thanks.
:cheers:

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mca
 Post subject: Re: E- brake Mount
PostPosted: August 20, 2013, 1:35 pm 
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Joined: April 2, 2009, 6:53 pm
Posts: 51
Location: Huntington Beach, CA
How is the rear e-brake mount working out? I have the same Wilwood mechanical spot caliper to mount on my Locost and am considering a solid, non-floating mount like yours.

Any feedback on the design or implementation? My car is far from a daily driver, but I would like it to be usable on weekend drives around town.

Thanks,
Aaron
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JonW
 Post subject: Re: Low-Cost At-om VTEC
PostPosted: August 20, 2013, 4:49 pm 
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I don't use it often. Main shortcoming is that the hand lever is not solidly anchored (slides on my coolant pipes).

It does work since the fixed mount deflects enough to allow it to clamp both sides. I do think that it needs more leverage multiplication due to small amount of brake arm movement. I used a std Civic hand lever from a '79.
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mca
 Post subject: Re: Low-Cost At-om VTEC
PostPosted: August 20, 2013, 6:16 pm 
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Location: Huntington Beach, CA
JonW wrote:
I don't use it often. Main shortcoming is that the hand lever is not solidly anchored (slides on my coolant pipes).

It does work since the fixed mount deflects enough to allow it to clamp both sides. I do think that it needs more leverage multiplication due to small amount of brake arm movement. I used a std Civic hand lever from a '79.


So it does work to keep the car stationary. What is your car weight? Mine weighs 1130lbs. with a full fuel load. I also have a Civic lever, albeit from 1990 or so, likely the same design. What gauge or thickness steel did you use for the mount?
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