Post by
b-rett »
https://forums.nicoclub.com/b-rett-u44928.html
Mon May 28, 2007 4:37 pm
just moseying along here. had the week after vacation to begin the 4-point roll bar (with tunnel supports). it took me awhile to get measurements and angles, but after figuring out lengths and angles (using a couple set of guages we have) it came out looking pretty good. the bends are nice and smooth, no crimping or crushes. the 5.5CLR die works really well (no scoring or anything). the notcher too performs extremely well. its for 1 3/4" tube, from .083 wall to whatever your body will allow you bend. NHRA calls for .108" wall (we used a .118" wall due to availability).
i will admit it takes some getting used to bend the main hoop and such, but the math and guages helped a lot. there are a few slight variations from the PS to the DS of the car. you will see in the pics i am sure (i'll point them out too). practice makes perfect...
if you recall, i posted up a few pics of the plates going in and used a thinner piece for the base plate. i then used the required 1/8" thick, 6" by 6" plate for the anchoring of the bar/hoop. the 1/16" plate (large base) made it a lot easier to weld the bar & 1/8" plate to the chasis. in my old civic hatch i just welded the 1/8" plate directly to the floor. it made for a ***** of a time welding (such a thick piece to a thin piece of sheet metal). anyways, here goes. some of the welding is not finished as of yet. i used our miller 251 MIG for the welding and in some cases it came out looking really good, others...not so much (suspending myself in weird positions made for some interesting times). i was able to get to all of the joints and weld around 90% of them. enjoy...interior should be wrapped up this week or next...then on to the mounts and motor install, woo who!!