1973 Camaro - Autocross / Street Car project - Page 6 - Lateral-g Forums

**tones2SS** · #51 12-07-2009, 09:13 AM

Amazing build guys. This is going to be one mean machine.

73CPCAMARO · #52 12-07-2009, 10:03 AM

Quote:

Originally Posted by Kendall Burleson

What material are the upright made of and will you have to heat treat them after all of the tig welding to nomalize were is the spell check at! them before you run them great setup,love it

The uprights are made of 3/16" cold rolled steel. No plans to heat treat at this point.

Thanks for the complement. We are happy with the results so far.

73CPCAMARO · #53 12-08-2009, 05:45 PM

Here are a couple photos of the front bars for the cage getting made. The bars were made just before we started filling in the holes in the fire wall. To be installed later.

gracin7 · #54 12-08-2009, 08:35 PM

Hey Brian,why the square tube in the rear cage,never seen that in my circle track world? And why is the 3rd so far over to the side,figured for lefts and rights center mounted would be more neutral. Nice fab work.

73CPCAMARO · #55 12-09-2009, 06:10 PM

Quote:

Originally Posted by gracin7

Hey Brian,why the square tube in the rear cage,never seen that in my circle track world? And why is the 3rd so far over to the side,figured for lefts and rights center mounted would be more neutral. Nice fab work.

I will give you the condensed version of why Maier used square tubing and the offset 3rd link.

Both are used in the latest GT series type cars. The square tubing is used in the rear section for a few reasons. It is more rigid than round tubing for tension and compression. If it does fail, it is at a higher rate than round tubing. But, if it fails, it fails bad. Round tubing is more forgiving and will bend much more before it completely fails, that is why the passenger compartment uses round tubing. Also, square tubing is easier to fabricate in tight areas and when the paneling is installed, it will give a flat surface.

As far as the offset 3rd link, it is also that way modern GT cars are built. Circle track cars use a centered 3rd link, and road cars use an offset. On acceleration, if you were to put scales under the rear wheels, the weights would be different from left to right. Offsetting the upper link evens out the weight distrubution on acceleration. Since packaging is not a real concern on this car, it was the way to go. I am not putting in rear seats. Paneling will cover up all of Maiers nice work.

Here is a picture of a newer Corvette GT car that shows the round tubing in the passenger compartment and square tubing in the rear.

gracin7 · #56 12-10-2009, 05:04 AM

Thanks Brian for your explaination,we too have offset the 3rd link,but were only going left,just figured the amount that it is favored would have to create unequal traction from left to right,thanks again not questioning wheather your right or wrong,just picking your brain.And I too figure if it works in a proven vehicle where the builders have much more technoligy then it will work for me!!!

Josh@KYTP · #57 12-10-2009, 08:59 AM

Amazing work on the 2nd Gen guys. Makes me wish I had kept my 70 Camaro. Cant wait to see the finished product.

jjarky · #58 12-10-2009, 01:31 PM

Man, that thing will be killer! Giant roller skate. I assume you will have to flare the front fenders and not run inners?

jjarky · #59 12-10-2009, 01:33 PM

What brand aluminum seat is that pictured in the car?

73CPCAMARO · #60 12-10-2009, 01:51 PM

Quote:

Originally Posted by jjarky

What brand aluminum seat is that pictured in the car?

The car will have matching Kirkey road race seats for the driver and passenger.