Drag Racing Discussions > Front Engine Dragsters
Interior pan advice please - 3 piece ok?
rooman:
--- Quote from: Draw 3D on March 18, 2019, 06:03:45 PM ---
--- Quote ---2019 NHRA Rulebook and 2019 HRHS Rulebook General Regulations
--- End quote ---
7:5 FLOOR
All cars without floors must be equipped with floor pans made of steel or aluminum that must extend the full length and width of the driver compartment to the rear of the driver’s seat. Cars equipped with floors or belly pans made of fiberglass or other breakable material must have metal subfloors. In all cars with OEM fiberglass floors, a crossmember (minimum 2 inches x 2 inches, .083-inch wall thickness square tubing) must be installed between framerails for proper driver’s seat, seat belt, shoulder harness, and crotch strap installation. Belly pans and subfloors enclosing engine or driver compartment must contain suitable drain holes so that liquids and foreign matter cannot collect, thus creating a fire hazard. Minimum .032-inch aluminum or .024-inch steel. In certain instances, an NHRA-accepted panel made of composite material may be substituted for steel or aluminum. Contact the NHRA Technical Services Department for list of accepted composite panels. Use of magnesium prohibited.
--- End quote ---
That whole section is related to "door" cars. The NHRA can't write an understandable and enforceable rule book to save their lives and there are numerous examples of this sort of wording throughout the book. The recently discussed steering column displacement collar is another that comes to mind. Working in conjunction with Carl Olson and Jim Skelly, I managed to get quite a bit of this sort of thing straightened out quite a few years ago but they are both gone from the NHRA and the clueless have taken over. I will try to contact Glenn Gray today and see it there is any chance of fixing these anomalies.
Roo
wideopen231:
Well this certainly clears up rather my full belly pan is legal or not.LOL Ok on serious side. I have full belly pan from motor plate to under seat,I have two diagonals that feet can rest on (although barley) .Legal or not? I can fabricate a inner floor if a have to do thing and just use when at event that it would be issue., I would rather have the belly pan since easier to remove to allow maintenance on trans ,6 dzus and you're there. Also would a aluminum rest covering diagonals be just as good and if required legal?
Just seeing what I may have to have and if chance I can have in trailer if becomes a issue and how yea once get the trailer thing covered. Not LOL there.
225digger:
does a belly pan help any other than air coming into the compartment ?
THE FRENCHTOWN FLYER:
--- Quote from: 225digger on March 19, 2019, 06:18:36 AM ---does a belly pan help any other than air coming into the compartment ?
--- End quote ---
Well, there's that.
Plus in general a belly pan helps the aerodynamics on the underside of the chassis. Many new cars use them (I have to remove the one on my wife's car just to change the oil - GRRR).
Plus I can't count how many times I've dropped a glove in the driver's compartment while driving up to the staging lanes, and found it on the floor.
Likewise, losing my e.t. slip driving back from the e.t. shack.
Plus, plus, I have a piece of Pig Mat retained under the trans to act as a diaper for minor trans seepage drips.
Plus, plus, plus, occasionally a vital piece of hardware vibrates loose, like a terminal screw or nut.
rooman:
--- Quote from: 225digger on March 19, 2019, 06:18:36 AM ---does a belly pan help any other than air coming into the compartment ?
--- End quote ---
It helps keep the flames (and oil and loose parts) out if things get ugly. ;)
Roo
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