edspecR

its a cusco 5 point. the bar you circled is called the fail bar.

_Kyo

question, how much seat travel do you guys lose with your roll bars?
because im looking at the harddog roll bar but i drive with the seat all the way back

kjayp2

there's the 6pt and the 7pt cage, the seventh point is that bar. check out gotuning's thread in the classifieds I think they have the best prices on them... I ordered one a few weeks ago but they're a 2+ month wait
http://www.gotuning.com/product_info.php?f...products_id=370

Amer

I guess it would be too much to ask for a carbon fiber roll cage at this point?

edspecR

you're kidding i hope?

dpspeed

Yes, it is too much to ask for... Have you ever seen what happens to a carbon splitter when it is curbed or hit relatively hard? It shears off.

On another note, you could have someone "wrap" your rollbar, I actually saw a bar wrapped in a carbon fiber print at PRI. It looked so good I thought to myself - I hope this guy has great liability insurance...

dpspeed

Just a FYI, you lose no seat travel and only 2 clicks on the recline with the Hard Dog bar...

jsenclosure

Here is my cage in progress. The rear is a mugen look-a-like so that i could use the trim and keep it looking clean. It will be a full cage though.

First we made the rear hoop, two 90degree bends on the same plane. Pretty simple. We made this to 22.5” height, the mounting base plates are ¼” so that’ll bring it to 22.75” height total. Top goes up and down no problem.




Dropped the seat in to see how it sat. Very pleased with the total height of it.


Next I took the rear support and cut out just over 3” from each end of it. Doing so I lost 1 bolt hole on each side. I also removed the stock seatbelt mounting brackets since I wont be using them. The reason for cutting this piece to so the 3”x 4” mounting plates for the rear hoop can be centered on the pipe.






Then we welded on the 3x4” base plates for the main hoop.


Tested the fit for clearance and everything fit perfectly


Next we measured up the piece we would need for the seatbelt harness bar. Put a bend in each end to get the bar the sit back 4” and match the mugen trim as it should, then we tacked it in place and gave it a test fit to mark up the holes for the harness mounts.




Then we put it in place with the cover to mark the holes.




With the holes marked, we broke the tack and removed the harness bar. We then hit the marked holes with a center punch, put the bar on the mill and drilled the 1” holes. Then we tig welded the bar back in place.




Then we cut some 1” stock to 2.5” lengths. The tube is 1.75” so 2.5” length would allow the slug to sit about ¾” above the bar, which was perfect for the trim piece. After cutting 4 slugs we put them in the mill (because we didn’t have an attachment for the lathe) centered and drilled them out and used a tap to thread them for a 7/16” harness eye bolt. We then welded these into place.






And put in place




And as it sits now




Edit: Finished it up last night. It's 90% done at this point.
























And Inside:

jsenclosure

yes, it is weaker than a fully built and welded cage. It is easier for it to bend and break.
However, it's still better than nothing

jsenclosure

added some more pics above