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Learning how to build Lotus Seven replicas...together!
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PostPosted: Sat May 10, 2008 8:59 pm 
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Joined: Fri Oct 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: Mon 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: Tue Jun 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: Tue Jun 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: Tue Jun 17, 2008 11:11 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: Tue Jun 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: Mon Jul 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 3106 times ]


Last edited by locofinn on Mon Jul 28, 2008 10:24 pm, edited 1 time in total.
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PostPosted: Mon Jul 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
Locost 07-27-08 013.jpg [ 57.3 KiB | Viewed 3092 times ]


Last edited by locofinn on Mon Jul 28, 2008 10:25 pm, edited 1 time in total.
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PostPosted: Mon Jul 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: Mon Jul 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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Locost 07-27-08 011.jpg
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PostPosted: Mon Jul 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: Mon Jul 28, 2008 10:33 pm 
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Location: Indiana
Another


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Chuck Spera WCM Seven D Mod 2.jpg
Chuck Spera WCM Seven D Mod 2.jpg [ 34.99 KiB | Viewed 3062 times ]


Last edited by locofinn on Mon Jul 28, 2008 10:40 pm, edited 1 time in total.
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PostPosted: Mon Jul 28, 2008 10:36 pm 
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Location: Indiana
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: Wed Oct 01, 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 2632 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 2015.
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: Wed Oct 01, 2008 8:59 pm 
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Joined: Fri Oct 27, 2006 3:29 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 2633 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 2015.
South Bend Region SCCA

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