Pinky

[gt1guy]

Firewall notch looks clean.

The prop valve does look a little odd where it's sitting. With the weight of the fuel bombs directly over the rear tires, it might make sense to have the prop valve within reach.

 

[Grendel]

Prop valve gets raised above the frame rail, but probably stays there, it's easy to access. Open the hood, turn the knob for rear brake bias.

It's not like it will be adjusted that often.

 

[Eric642]

Nice build! Going to be a blast to drive.
What's the width of the C7 front end? Outer tire to outer tire? I have a project that I was thinking of using that set up on.

 

[Grendel]

Nice build! Going to be a blast to drive.
What's the width of the C7 front end? Outer tire to outer tire? I have a project that I was thinking of using that set up on.

Factory is 73.9 in

 

[Eric642]

Thanks for the info for some reason I had a hard time with my GoogleFu on that one.

 

[Grendel]

And it's back in

 

[Java230]

 

[Grendel]

and then this.

 

[Firstram]

 

[Grendel]

Starting on the cage and center console and some extended steps.

 

[Java230]

Too much win in one vehicle

 

[Grendel]

So, we tried to bend up the schedule 80 structural tube for this. We went thicker than the other ones, since it's aluminum.

It doesn't bend without cracking.

So, we're miter cutting, slugging and welding the cage. The solid slugs in every miter cut will extend 3" to either side of the cut.

Anyone see issues?

 

[Grendel]

Oh and we started on the console and shifter mount. Will have access panels on both sides, be completely removable and cover up a lot of wiring and control modules.

Bead rolling and huck bolts coming right up.

 

[rockmup]

So, we tried to bend up the schedule 80 structural tube for this. We went thicker than the other ones, since it's aluminum.

It doesn't bend without cracking.

So, we're miter cutting, slugging and welding the cage. The solid slugs in every miter cut will extend 3" to either side of the cut.

Anyone see issues?

Did you try heating it first ?

 

[Grendel]

Did you try heating it first ?

Yeah, we annealed a piece. Still cracking.


FEA shows the miter cut and slug method is about 30% stronger than a bend. So we're doing that.

 

[bdkw1]

Slugging is probably overkill. A bullhead will be almost as strong and much lighter.

 

[Grendel]

Slugging is probably overkill. A bullhead will be almost as strong and much lighter.

It's like you don't even know me...

My nickname used to be CDR Overkill.

 

[Grendel]

So, as I said, we couldn't bend, so we mitered and slugged.


Doing a cage that meets any requirements in one of these is tough. We're dropping the seats down a fair bit and angling the windshield frame back.

 

[Dethmachinefab]

So, we tried to bend up the schedule 80 structural tube for this. We went thicker than the other ones, since it's aluminum.

It doesn't bend without cracking.

So, we're miter cutting, slugging and welding the cage. The solid slugs in every miter cut will extend 3" to either side of the cut.

Anyone see issues?

Seems most everyone is building cars with cnc cut and mitered straight tubes now, stronger and easier to build.

What grade is the tube? 6061 will always crack, 5052 and 3003 are bendable but I'm sure there is a radius limit where your going to get stretch cracks outside of the bend.

 

[arse_sidewards]

Anyone see issues?

Yes, the absolutely abysmal ROI from welding in all the slugs. Just miter it like everyone else

 

[bdkw1]

6061 will always crack,

I have bent plenty of 6061 in my bender. It was all 120 wall or less though.

 

[Dethmachinefab]

I have bent plenty of 6061 in my bender. It was all 120 wall or less though.

Never had any luck. My experience is .120+ wall and not on a big clr dies though.

 

[bdkw1]

6"CLR and plenty of lube. I also polish the slider die first too.

 

[dnsfailure]

So, as I said, we couldn't bend, so we mitered and slugged.

how did you do the slug on a mitered joint? a smaller mitered and welded solid bar?? Or some sort of billet pre-made/machined at that angle?

 

[Grendel]

how did you do the slug on a mitered joint? a smaller mitered and welded solid bar?? Or some sort of billet pre-made/machined at that angle?

Bend the solid slug to the miter angle on the 500t press.

 

[bdkw1]

Bend the solid slug to the miter angle on the 500t press.

Pics? I'm having a hard time imagining that makes a good fit up.

 

[arse_sidewards]

Pics? I'm having a hard time imagining that makes a good fit up.

I'm having a hart time imaging you can bend that without cracking on the OD if you can't bend sch80 without cracking on the OD

 

[arse_sidewards]

Also gonna need to see pics of press.

Fuck it, might as well post pics of the wife while you're at it.

 

[bdkw1]

If if didn't crack, you would think it would deform enough not to slide all the way in. Unless it was way undersize?

 

[Grendel]

The slugs are not 6061. They don't have to be.