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Learning how to build Lotus Seven replicas...together!
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PostPosted: May 10, 2008, 8:59 pm 
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Joined: October 27, 2006, 3:29 pm
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Location: Indiana
5.7" arms are pretty long. I am still thinking Mustang II or Chevette/Fiero spindles with a steering arm length of 4.8" to 4.6". I will have to do the math. I don't think I can get shorter steering arms. I know Appleton will mod the rack for me if I need something different.


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PostPosted: May 26, 2008, 10:21 pm 
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Location: Indiana
Update for Memorial Day.

Commited to Mustang II spindles. Plan on redrilling the front hubs to match the rear RX-7 hubs. I figured it would be easier to redrill front Mustang hubs than pulling the RX-7 axles.

Got the build table done. About 6 hrs labor and $45 in materials. Nice and flat with levelers on the legs.

Started with the cart to hold the finished frame during the assembly phase. Good chance to work on fit-up and welding practice with the light gauge steel. I have never welded 16 gauge steel, only 1/8 inch and thicker. Wasn't hard, just clamp everything tack and go, aternating sided to side. I got the welder and "weldor" dialed in now. Took about 4 hours to finish the cart. I think I will start a written log book of my build time. I have 10 hours into this and haven't started my frame yet. Slow and steady she goes....

With the chassis cart complete, time to get down to business and start the frame...


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Locost build table 1.jpg
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PostPosted: June 17, 2008, 9:15 pm 
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Location: Indiana
Father's Day update. Frame tacked. Looking at about 16 hours work. Measure twice, cut once, then repeat...


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Locost Frame 06-15-08.jpg
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PostPosted: June 17, 2008, 9:17 pm 
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Location: Indiana
OK. I've seen this pose a million times. This time it's ME!


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Locost Fool 6-15-08.jpg
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PostPosted: June 17, 2008, 11:11 pm 
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Joined: June 1, 2008, 1:52 pm
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Location: Victoria, BC, Canada
It's a great moment, that's why we see it so often. ;) Next step: Roller!


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PostPosted: June 17, 2008, 11:46 pm 
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Location: New Zealand
I remember my first time in that pose. it was a great feeling to imagine the car around me. best of luck on your build


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PostPosted: July 28, 2008, 9:57 pm 
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Location: Indiana
Update. Getting along on the frame. A buddy helped out with his tube bender. You need a legitimate tube bender with the right size dies. I tried the HF pipe kinker, take it from me, it kinks pipe. The roll bar front and rear hoop is .095 wall seamless. Sturdy stuff. I am down to the tunnel design and additional bracing in the engine bay and other places.


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Locost 07-27-08 002.jpg
Locost 07-27-08 002.jpg [ 65.58 KiB | Viewed 3595 times ]


Last edited by locofinn on July 28, 2008, 10:24 pm, edited 1 time in total.
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PostPosted: July 28, 2008, 10:11 pm 
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Location: Indiana
Big Fat Sticky Tires. Other SCCA D-modified guys gave these to me for chassis design and setup. I might even get a few runs out of them. Plenty of tread left.


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Locost 07-27-08 013.jpg
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Last edited by locofinn on July 28, 2008, 10:25 pm, edited 1 time in total.
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PostPosted: July 28, 2008, 10:16 pm 
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Location: Indiana
I intend to utilize readymade drive shaft safety hoops from A&A Manufacturing. They are 1/4 flat steel hoops. I need these to be compliant with SCCA rules if I intend to run race slicks. Along with the hoops I need a explosion proof bellhousing or sheilding that meets SFI regulations.


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Locost 07-27-08 012.jpg
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PostPosted: July 28, 2008, 10:21 pm 
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Location: Indiana
Another view of where the driveshaft hoops will go. I plan on building the driveline tunnel around these hoops. They measure about 5.5" wide. I will just roll the aluminium over the hoops.


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PostPosted: July 28, 2008, 10:32 pm 
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Location: Indiana
Other Sevens in the class I intend to compete in.


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Del Long D Mod Seven.jpg
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PostPosted: July 28, 2008, 10:33 pm 
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Location: Indiana
Another


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Chuck Spera WCM Seven D Mod 2.jpg
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Last edited by locofinn on July 28, 2008, 10:40 pm, edited 1 time in total.
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PostPosted: July 28, 2008, 10:36 pm 
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Another view of Del Long's seven from a few years ago.


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E Mod Seven.jpg
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PostPosted: October 1, 2008, 8:56 pm 
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Update on frame. Finally finished the roll bar bracing.


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Frame 9-30-08.jpg
Frame 9-30-08.jpg [ 67.36 KiB | Viewed 3121 times ]

_________________
Building a whole car from scratch is a 1,000 little tasks, done 1 task at a time, while thinking 10 tasks ahead, then redoing it anyway.

SCCA D Mod autocross special. Scratch-Build completed 2013. Blew-up engine in 2014. Re-engineering & Rebuilding for 2016.
South Bend Region SCCA

Link to my build log:
http://www.locostusa.com/forums/viewtopic.php?f=35&t=3356
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PostPosted: October 1, 2008, 8:59 pm 
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Location: Indiana
Another view of the frame from front. Notice the offset of the driveline to the passenger side. Extra room for me and better balance for the chassis overall.


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Frame 09-33-08 a.jpg
Frame 09-33-08 a.jpg [ 54.97 KiB | Viewed 3122 times ]

_________________
Building a whole car from scratch is a 1,000 little tasks, done 1 task at a time, while thinking 10 tasks ahead, then redoing it anyway.

SCCA D Mod autocross special. Scratch-Build completed 2013. Blew-up engine in 2014. Re-engineering & Rebuilding for 2016.
South Bend Region SCCA

Link to my build log:
http://www.locostusa.com/forums/viewtopic.php?f=35&t=3356
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