stocker build.....trunk area accessories attachment

Rusty Davenport · 10-23-2013, 12:35 PM

I noticed recently a majority of stockers that have fuel cells, battery boxes, batteries and weight boxes are BOLTED through the trunk floor pan with NO attachment to frame rails or other structural members. I also noticed not one trunk area was ever looked at underneath the car by a tech person. I am all for bolting through the floor pan if that is legal BUT is that ok ????

Pedigo Perf · 10-23-2013, 01:02 PM

They DO look and it is definately NOT legal. I spent an afternoon in St Louis drilling and relocating weight in my Chevelle's trunk area so it attached to the frame like tech wanted. Not the best time or place to do that sort of work but we went to race, not to watch.

I don't know on a subframe type car like a Camaro or Nova what is acceptable but definately check with a tech guy before assuming something is OK because another person is doing it that way.

TP

Tom Goldman · 10-23-2013, 01:13 PM

Not legal, must be bolted or welded to frame.
I drill and sleeve the frame rails so I can bolt items on without collapsing the rail.
You can also weld cross rails to the frame across the trunk floor and attach fuel cells ,batteries ,and weight boxes to them.
I do that on cars with deep spare tire reliefs ,to keep the weight up higher.

Mark Yacavone · 10-23-2013, 05:53 PM

Rusty, By and large, the tech guys are very reasonable. They are looking for something that is secure.
I have mounted 5 gal. fuel cells on a fabbed aluminum frame, through the trunk floor with large fender washers.. Never a problem with tech
The 20 gal OEM tanks hang below, from sheet metal, with sheet metal straps, by the way.

Weight boxes and batteries however ,must be bolted thru the frame or sub frame with a minimum of two half inch bolts, or secured as Tom suggested.

10-23-2013, 12:35 PM	#1
Rusty Davenport Senior Member Join Date: Jun 2005 Location: Nashville N.C. Posts: 506 Likes: 4 Liked 101 Times in 27 Posts	stocker build.....trunk area accessories attachment I noticed recently a majority of stockers that have fuel cells, battery boxes, batteries and weight boxes are BOLTED through the trunk floor pan with NO attachment to frame rails or other structural members. I also noticed not one trunk area was ever looked at underneath the car by a tech person. I am all for bolting through the floor pan if that is legal BUT is that ok ???? __________________ NHRA AND IHRA STOCK ELIMINATOR 2772

10-23-2013, 01:02 PM	#2
Pedigo Perf Member Join Date: Feb 2008 Location: Wichita Ks Posts: 383 Likes: 70 Liked 30 Times in 17 Posts	Re: stocker build.....trunk area accessories attachment They DO look and it is definately NOT legal. I spent an afternoon in St Louis drilling and relocating weight in my Chevelle's trunk area so it attached to the frame like tech wanted. Not the best time or place to do that sort of work but we went to race, not to watch. I don't know on a subframe type car like a Camaro or Nova what is acceptable but definately check with a tech guy before assuming something is OK because another person is doing it that way. TP

10-23-2013, 01:13 PM	#3
Tom Goldman VIP Member Join Date: Jan 2003 Location: Allentown,PA Posts: 2,473 Likes: 881 Liked 858 Times in 234 Posts	Re: stocker build.....trunk area accessories attachment Not legal, must be bolted or welded to frame. I drill and sleeve the frame rails so I can bolt items on without collapsing the rail. You can also weld cross rails to the frame across the trunk floor and attach fuel cells ,batteries ,and weight boxes to them. I do that on cars with deep spare tire reliefs ,to keep the weight up higher. __________________ Tom Goldman 1500 SG , 1506 STK

10-23-2013, 05:53 PM	#4
Mark Yacavone Veteran Member Join Date: Mar 2002 Location: Miles From Nowhere Posts: 7,790 Likes: 2,882 Liked 5,080 Times in 1,936 Posts	Re: stocker build.....trunk area accessories attachment Rusty, By and large, the tech guys are very reasonable. They are looking for something that is secure. I have mounted 5 gal. fuel cells on a fabbed aluminum frame, through the trunk floor with large fender washers.. Never a problem with tech The 20 gal OEM tanks hang below, from sheet metal, with sheet metal straps, by the way. Weight boxes and batteries however ,must be bolted thru the frame or sub frame with a minimum of two half inch bolts, or secured as Tom suggested. __________________ "We are lucky we don't get as much Government as we pay for." Will Rogers