Project Fredybender V2.1 : NA with an attitude for the track by fredybender

3 minute(s) of a 234 minute read

This is only going to be a track day toy. It seems that here in Canada, CARS, is only approving FIA roll cages since 2008. The basis of the fully approved FIA rulebook has been applied, but a few more braces would be needed. Since I was in a "borrowed space" for the week end build, translates into limited time, thus simplifying the build. For the main hoop brace, my triangulation is done in the two aft braces going to the rear strut towers; to have it FIA legal, it would have been to make an "X, instead of just having one diagonal brace. The principle of that bar that you have, but I don't, is to triangulate the main hoop. (Which is done by the aft triangulation for me).

Also, the way they are, the front strut braces are NOT legal, but I really wanted them for chassis strengthening

for the door hoops, it looks like you bent in 2D; did the fact of having over 100mm between car's sheet metal and hoop, made you comply with installing gussets?

12-21-10

Things are starting to have a better pace now...

I prepped the engine compartment with Scotch brite.

Bought a HVLP spray gun.

Bought all the paint supplies (Urethane diamond silver metallic L97A) 

the metallic is hard to place properly, but I'm learning, and its only the engine bay 

Next step is prepping the interior, and priming the tubes...

12-22-10

Steering rack completely disassembled cleaned up, re-greased, and adjusted the rack pre-load.

Then installed it with the new tie-rods, with one poly mount, and the second mount, a solid Neuspeed aluminum mount.

Also one side is fitted with the camber plate. I mocked up the complete assembly with my new parts, so I could adjust / fit how the strut mated with the spherical bearing of the camber plate.

Like usual, I'm a pic whore!

This is how I mounted the Shine racing camber plates: I machined 4140 steel washers of the largest diameter possible, without having interference with the strut tower shapes & bosses.

M6 socket head cap screws grade 12.9 hold them into place.

photo from the underside:

Take a look at how the Shine Racing camber plate is made: the bottom of the washers on the underside is pulling upwards with the weight of the car.

Now take this into consideration: The weak point would be the 3 M10 studs, acting in tension on the upper part of the camber plates; for me, that would be the weak link. And in this case, what would be the purpose of making only one link bullet proof, if the link right next to it would be the weak one...

I have my ideas on how to improve SRS camber plates, but they have been around for a while, and I consider myself in a good enough position, to stand behind any engineering decisions I make.

Voila!