Drag Racing Discussions > Front Engine Dragsters

Chassis coatings?

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Blind Mule:
What is legal as far as powdercoat and what about chrome? I know some of the coatings get frowned on :-\

H.G. Wells:
I bet Rooman will jump in with the correct answer, but I think part of it has to do with what chassis cert you are looking for.
If I am not mistaken you can cert a 7.50 car with powder coat, but not TF and I doubt advanced ET.  I will dig up my book and look
Not sure about chrome on any part of the driver cockpit part. 

GlennLever:
Powder coat is not mentioned, my frame is powder coated. The rules are not clear on powder coat (not mentioned at all) a lot of people do not like it as they think that cracks will be hidden by powder coat, that is not my opinion (powder crack also). I think cracks show up better (I powder coat as a sidelline)

These are the rules SECTION 4B - ADVANCED E.T.
ROLL CAGE
The following SFI Chassis Specs are effective for all new chassis
and for all current chassis at next recertification: full-bodied cars
must meet SFI Spec 25.1E, 25.2, or 25.3; Funny Cars and openbodied
altered cars must meet SFI Spec 10.1E or 10.2. All frontengine
dragsters must meet SFI Spec 2.2B or 2.4B. All rear-engine
dragsters must meet SFI Spec 2.1 or 2.5B. Chassis must be
recertified every three years by NHRA and have a serialized sticker
affixed to cage before participation. Plating of chassis prohibited on
any vehicle manufactured after Jan. 1, 1999; painting permitted.
See General Regulations 4:1.

NHRA PRO MOD DRAG
RACING SERIES
Chassis must have manufacturer’s name, serial number, and date
of manufacture. Chassis must meet SFI Spec 25.1E or 25.2. Plating
of chassis prohibited; painting permitted. Chassis must be
recertified yearly by NHRA and have serialized sticker affixed to roll
cage before participation. Current three-year certification will be
accepted until they expire. No vehicles will be inspected early to
delay compliance. See General Regulations 4:11.

TOP ALCOHOL DRAGSTER
Chassis must meet SFI Spec 2.1 (rear-engine cars), 10.1E (frontengine,
driver in front of rear end) or SFI Spec 2.2B (front-engine,
driver behind rear end). Plating of chassis prohibited; painting
permitted. Chassis must be recertified yearly by NHRA and have
serialized sticker affixed to frame before participation. All wiring
must be external of the framerails; routing of cables, hydraulic, or
pneumatic lines inside the chassis is permitted. Pressurization of
framerails in lieu of air bottles is prohibited.

H.G. Wells:
Thanks for the clarification.

wideopen231:
Just a question why would anyone want to hide cracks in a chassis your butts going to be running 150 or 200 mph in.

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