Roll Bar

[mamzak]

True. Do it indoors and crank the furnace to like 90?

[bataangpinoy]

hell yea. but keep in mind that the cooling effects will be significantly less than what we'd see by doing it full size.

[mamzak]

LET's DO IT UP SMALL SCALE!!

[bataangpinoy]

ooo... but with pouring i'd worry about the stuff cooling off when it hit the pipe.

i'll test my theory small scale.

[mamzak]

That might actually work. Or just use a metal funnel, and fill it with hot glue sticks and then take a heat gun to it? Hot glue fountain anyone?

[bataangpinoy]

well there has got to be a better way to melt and fill hotglue than using a glue gun, thats so f'in ridiculously slow and sucky.
what if you got a copper rod and attached a jumper box to the rod whilst in the middle of a pvc pipe packed with hot glue! it would act like a heating element right?

[mamzak]

Thats what i'm saying mang, expanding spray foam!

hmm. I disagree. I think Hot Glue might be a little more expensive and time consuming...but definitely worth it. You for SURE do not want to cheap out on your PVC roll cage. A roll cage is NOT the place to cheap out.

Hot glue will add alot more structural rigidity than spray foam, and will provide a bit of give in the bars. Exactly what you want.

[deutschman]

i hope you have not started welding the pvc yet. i know i am late on this, but i hope i ketch you in time. dont forget to gas back-purge the pvc tubing when you weld it! other wise the back of your welds will be shit!!!

[Syncro325is]

that does it. im making a pvc cage this weekend, end story.

what if you used an expanding urethane to fill it?

Thats what i'm saying mang, expanding spray foam!

[mamzak]

I can't believe your laughing at such space aged shit!
PVC is the cutting edge maaaangggg!

[e30turboboy]

Seriously PVC is legit if you get the right stuff. You don't want a roll cage to be super stiff anyways, it needs to have a litle give or you will feel every pebble as your car is barrel rolling down the track in the event of a crash. The PVC absorbs a little bit of this and gives a comfortable tumble from what I've heard. Also...A couple of my friends that have a PVC roll cage filled each tube with hot glue. It was really time consuming and shit but that stuff increases the structural rigidity of the PVC and alows it to flex properly without snapping. I dunno.

My $0.02 is to go with PVC as these guys have suggested and use a plastic welder. Metal is:
a) super heavy
b) super stiff
c) expensive

Practically all the things you DONT want in a roll cage.


Keep it PVC and keep it real! Also be sure to post pics of your install, and do a write-up on it. I have a feeling alot more people are going to be switching to PVC in the future for the added benefits.


Here's a pic of a good example done right: (This one DOES have the hot glue inside)

[bataangpinoy]

that does it. im making a pvc cage this weekend, end story.

what if you used an expanding urethane to fill it?

[mamzak]

Steel is a thing of the past. PVC is where its at.

QFT.

[mamzak]

Seriously PVC is legit if you get the right stuff. You don't want a roll cage to be super stiff anyways, it needs to have a litle give or you will feel every pebble as your car is barrel rolling down the track in the event of a crash. The PVC absorbs a little bit of this and gives a comfortable tumble from what I've heard. Also...A couple of my friends that have a PVC roll cage filled each tube with hot glue. It was really time consuming and shit but that stuff increases the structural rigidity of the PVC and alows it to flex properly without snapping. I dunno.

My $0.02 is to go with PVC as these guys have suggested and use a plastic welder. Metal is:
a) super heavy
b) super stiff
c) expensive

Practically all the things you DONT want in a roll cage.


Keep it PVC and keep it real! Also be sure to post pics of your install, and do a write-up on it. I have a feeling alot more people are going to be switching to PVC in the future for the added benefits.


Here's a pic of a good example done right: (This one DOES have the hot glue inside)

[accident]

in