So I started to fab a rollcage into my car.
Heres the first few pics.

 

4d ftw! the cage looks good to me but idk what i am looking for

 

I dont thinkn that thats a Honda, but i dont know.

What are we looking at here bud?

 

a 1990 corolla sedan with a turbocharger
I just figured since I'll be tracking it, plus since it was dented once pretty badly and it not a taxi, that I'll sacrifice the rear seat for a rollcage.

 

Why not through the dash?
Why is the main hoop cross bar so low?


It looks pretty decent so far though....

 

Heres the answers to your questions:

1) I figured if I ever need to remove the cage for example if I decide to sell the car, I can turn the interior close to stock. Now if I had them go through the dash, it would show. Also, I didnt want the hassle of having to pull the whole dash out. Thirdly, I didnt want to hack a perfectly good dashboard.

2) Its at the level of the bumpers in the car, after looking at the rule book and talking with cage fabricators and they said about bumper level is good. Some would of gone lower. I was also considering in a side impact, this would be at the level of the other cars front, so I guess with common thinking that it would help support the cage in such an impact.

 

Cool. I understand your thinking.

Is this for straight line racing (drag) or other track racing?

 

Daily driving mostly and some circuit and maybe occasional straight line.

 

Sounds great. Keep us updated. I want to see the final outcome of this.

Also what type of bender are you using?

 

You're not going to attach your harnesses to that cross bar, are you?

 

Nope, my harness is gonna go to the rear seat lap belt bolts. angle is fine over there, atleast from sparcos booklet.
Heh, spinal compression would suck.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">Also what type of bender are you using?</TD></TR></TABLE>
I bend the pipes over my knee heh, jk, they were prebent

 

"I bend the pipes over my knee "

You too?

Looking good. Lot's of room in there....

 

I'd put another harness bar at shoulder height and attach the harnesses there.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">I'd put another harness bar at shoulder height and attach the harnesses there.</TD></TR></TABLE>


You need to listen to this man.

 

FYI that isn't a legal front section. Your down tubes have double bends.

 

Legal for what? Street yes and for occasional track. I just cant race with them in a homologated event. I dont live in the US so different rules apply.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">You need to listen to this man.</TD></TR></TABLE>
Street legality with a harness connected to a crossbar is so-so, they might get you at the yearly inspection for it, as they arent certified belt mounting points.

 

You should go with larger plates on the floor I think.

 

have never seen a crossbar that low in the main hoop.
i've seen braces attach across the bottom of the main hoop. but there is still a crossbar and also a diagonal from driver top of main hoop to passenger bottom of main hoop.
if you roll over you aren't going to have as much protection the way the cage is currently. the Main hoop will be able to deform easier which you don't really want.
everything is built off the main hoop.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Flashmn &raquo;</TD></TR><TR><TD CLASS="quote">Legal for what? Street yes and for occasional track. I just cant race with them in a homologated event. I dont live in the US so different rules apply.


Street legality with a harness connected to a crossbar is so-so, they might get you at the yearly inspection for it, as they arent certified belt mounting points.</TD></TR></TABLE>

how do you get an inspection if you're dead? I'd go safe over inspection legal any day.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">if you roll over you aren't going to have as much protection the way the cage is currently. the Main hoop will be able to deform easier which you don't really want.
everything is built off the main hoop.</TD></TR></TABLE>
The rear bars are still missing. I'm building it mostly the way it says in the rulebook that governs all motorspots fields here.

Nonsense, I dont think its gonna make much of a difference if I run them from the rear pax seat lap belt mounting point or a bar, the angle of the belt still goes within the spec of sabelt.

 

Running the belts to the rear seat area is fine as long as the belts were designed to do this. fia standards allow for this and you can actually mount the belts too close based on the standard the fia sets. The low center bar is not something Im used to seeing but I have seen countless fia cages with nothing in the main hoop area. What design rear down tubes are you using? Door bars?

 

straight from the upper end of the main hoop down to the shock towers.

 

General quality of the weld

 

How big is that plate its welded on ? Weld looks undercut

 

55x100x2 or 2.5mm
Hmm might be slightly undercut, its for the rear cross bracing to shock towers.