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easy main hoop question #1200839 03/21/12 01:44 PM 03/21/12 01:44 PM
Joined: Jul 2011 Posts: 781 wine country 8 8urvette OP super stock
8urvette OP super stock 8 Joined: Jul 2011 Posts: 781 wine country	on the main hoop, the big part from rocker to roof- across the car and back to rocker, the supporting bar where a "seat belt" would install directly behind the driver going across the main hoop- what size does this need to be, i bought a chis alston kit for my barracuda and it came with a few extra bars... do i need to use the 1 3/4 or the smaller tube for this? I have enough to do either

Re: easy main hoop question [Re: 8urvette] #1200840 03/21/12 01:49 PM 03/21/12 01:49 PM
Joined: Aug 2006 Posts: 290 Cincinnati, Ohio d7cook enthusiast
d7cook enthusiast Joined: Aug 2006 Posts: 290 Cincinnati, Ohio	It can be 1-1/4" minimum. http://www.nhra.com/UserFiles/file/General_Regulations.pdf Page 22 1967 Coronet, 1989 Daytona tube chassis. Former cars, 66 Charger, 67 R/T, 69 Coronet, 67 Dart GT. -Banned for life from V8Buick.com-

Re: easy main hoop question [Re: d7cook] #1200841 03/21/12 02:37 PM 03/21/12 02:37 PM
Joined: Aug 2003 Posts: 43,190 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,190 Bend,OR USA	Quote: It can be 1-1/4" minimum. http://www.nhra.com/UserFiles/file/General_Regulations.pdf Page 22 Make sure the crossbar is within four inches of the top of your shoulders when your in the seat, mine isn't and I have to have another bar added now Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: easy main hoop question [Re: Cab_Burge] #1200842 03/21/12 04:20 PM 03/21/12 04:20 PM
Joined: Dec 2003 Posts: 2,586 Illinois, Indiana, Louisiana ProStDodge master
ProStDodge master Joined: Dec 2003 Posts: 2,586 Illinois, Indiana, Louisiana	Cab - you may be able to add a couple of vertical bar behind the driver seat rather than another cross bar. I did that as the beginnings of a funny car cage, but left the front section of the funny car cage off (could be added later if someone wanted to go faster than 8.50).

Re: easy main hoop question [Re: ProStDodge] #1200843 03/21/12 05:29 PM 03/21/12 05:29 PM
Joined: Nov 2003 Posts: 654 ohio D dbran451 mopar
dbran451 mopar D Joined: Nov 2003 Posts: 654 ohio	I have a chris alston cage in my dart I found out the 1 1/4 pipe didn't meat nhra specks for thickness may want to check it before you weld oit in.

Re: easy main hoop question [Re: Cab_Burge] #1200844 03/21/12 10:27 PM 03/21/12 10:27 PM
Joined: Oct 2003 Posts: 7,506 Az Crizila master
Crizila master Joined: Oct 2003 Posts: 7,506 Az	Quote: Quote: It can be 1-1/4" minimum. http://www.nhra.com/UserFiles/file/General_Regulations.pdf Page 22 Make sure the crossbar is within four inches of the top of your shoulders when your in the seat, mine isn't and I have to have another bar added now 1 1/4" is ok for the cross bar and per my RCI belt instructions, shoulder mounting should be 4" or less below the the top of the shoulder line. I put my seat in first, before I welded in my cross bar to make sure I was within that 4" distance. 7129526-finishedcage.jpg (29 downloads) Fastest 300

Re: easy main hoop question [Re: Crizila] #1200845 03/21/12 11:27 PM 03/21/12 11:27 PM
Joined: Jul 2011 Posts: 781 wine country 8 8urvette OP super stock
8urvette OP super stock 8 Joined: Jul 2011 Posts: 781 wine country	awesome, thanks guys 1 more the braces that go from the main hoop to the subframe- the short diagonal ones. 1 1/4"? or 1 3/4"? i didn't see anything about it in the link provided above Last edited by 8urvette; 03/21/12 11:35 PM.

Re: easy main hoop question [Re: 8urvette] #1200846 03/22/12 01:36 AM 03/22/12 01:36 AM
Joined: Aug 2003 Posts: 166 Pound, Va C Chris Vanover member
Chris Vanover member C Joined: Aug 2003 Posts: 166 Pound, Va	1 1/4

Re: easy main hoop question [Re: ProStDodge] #1200847 03/22/12 01:40 AM 03/22/12 01:40 AM
Joined: Aug 2006 Posts: 687 Ohio Chad Bittle mopar
Chad Bittle mopar Joined: Aug 2006 Posts: 687 Ohio	Quote: Cab - you may be able to add a couple of vertical bar behind the driver seat rather than another cross bar. I did that as the beginnings of a funny car cage, but left the front section of the funny car cage off (could be added later if someone wanted to go faster than 8.50). Nice work.

Re: easy main hoop question [Re: Chad Bittle] #1200848 03/22/12 02:03 AM 03/22/12 02:03 AM
Joined: Jul 2011 Posts: 781 wine country 8 8urvette OP super stock
8urvette OP super stock 8 Joined: Jul 2011 Posts: 781 wine country	and for last one now, i know common sense says i should center the 6x6 plate under the roll bar... but what if i do not have room to center the plate???? i do not see any where in the NHRA general regulations where is states this? so is this common practice but not actually required?

Re: easy main hoop question [Re: 8urvette] #1200849 03/22/12 02:12 AM 03/22/12 02:12 AM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	No it doesnt have to be centered... your spreading the load out with the thicker plates vs just putting the tube on floor pan sheet metal

Re: easy main hoop question [Re: MR_P_BODY] #1200850 03/22/12 03:04 AM 03/22/12 03:04 AM
Joined: Jul 2011 Posts: 781 wine country 8 8urvette OP super stock
8urvette OP super stock 8 Joined: Jul 2011 Posts: 781 wine country	FANTASTIC!!!!! Thanks for you help guys. should get some work done on it this weekend... after re-building 2 fences.

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