RX-Ben

I'm interested to hear what kind of clearance you have between the halo/forward hoop bar (in the area of the driver's window) and your helmet. Without kicking out that bar, it doesn't look like there is much space for clearance and I have yet to see a cage with a kicked out bar.

Thanks.

JerryTX

Can't embed from the phone but checkout YT vid BUVyVoc78sQ, I have since added padding to the bar. Still amazed how much the halo seat moves with g force.

RX-Ben

Thanks - are you constantly bumping the padding? Looks like it is already pretty close with the bare bar.

JerryTX

I'll be honest I've never noticed it while driving, only when trying to get out with helmet and Hans on. I had to remove the previous owners seat belt buckle window net attachment mechanism, my head didn't stand a chance of getting out with that thing hanging down. I'll try and share some before/after pics of that later when I can search for them.

RAFTRACER

Ben,
All of our cars have bent outward forward halo bars. There is very little room, or no room otherwise. We additionally take the b-pillar out of the car to get the hoop higher as well as the forward halo bars.

Most of the Pheonix builds have bent outward forward halo bars, but they all have b-pillars remaining. Rearwad visibility is awesome with the B-pillar removed ..

RX-Ben

Thanks and that is what we have been noticing even with a WC roof, no A pillar, no OEM halo and the seat on the floor.

On the forward hoop kick-out - do you end up with 5 bends on the forward hoop and head up to the next tube dimension?

RAFTRACER

Our halos are built differently. The forward running "halo" bar from the main hoop is continous to the front floor with 3 bends. Those are connected through the roof to the other side. Our halo car is not continous.

JohnAlley

Danny when I pick my car up can you show me what you are trying to explain. I can't see it in my mind, thanks

davidfarmer

brians car.... plenty of headroom

brkntrxn

I hit my head on the padding all the time, around the paddock and on grid. On track I never notice it.

I will say my new carbon fiber helmet is actually larger in size compared to my old helmet. I seem to hit it a bit more now.

Model your cage after Brian's, his is the best I have seen by far.

zigspeed10

I used Brian's cage as reference when doing mine. He has a thread on here somewhere will lots of good pics.

I feel comfortable with headroom in my cage, my helmet never touches anything. I can also climb out of the window with full gear on in case the door fails to open. I've seen cages where the helmet doesn't fit the window opening.

Here is my cage build with some pics for reference.
http://forums.corvetteforum.com/auto...pta-build.html

RX-Ben

Yes, been looking at that. My concern is not so much bumping while driving (currently have plenty of clearance for that), but hitting/bumping and the resulting effect on the neck when the belts stretch during a side impact.

RAFTRACER

Davids cage looks exactly like some cars that I know about . Nice job Dave, I hadn't seen your car since we talked, but that turned out REAL nice. Door bars going through the b-pillar certainly eliminates some unneeded bends.

fatbillybob

Headroom is nice but if you can still hit a bar that is farther away the safety of it is only piece of mind. Think baseball for those weaker in physics and math. Same 175lb man batting. Would you rather get batted in the head by a "bunt" or a full swing? If your halo bar does not collapse in an impact then your head right on that padded bar is good vs. having 5" of space to accelerate into the bar. If otoh you pad that 5" or contain your head with a halo seat and never hit the bar that's better. Very few vette drivers 1) have the space or 2) use a halo seat or 3)manage that space.

RX-Ben

I think the analogy is incomplete - your body will continue moving in an impact and your neck will see significant stress as the body moves while your head is stuck against the bar. Freeing up some space will allow your head to move with the body, saving your neck.

fatbillybob

Maybe but the head injury will kill you despite how great you neck looks

JerryTX

lol!!

RX-Ben

I'd rather take my chances on the helmet since it is specifically designed (and certified) to handle and dissipate energy from a roll bar impact.