NHRA truck requirements. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ripdog28 · 10-04-2010, 01:28 AM

Marv, Super, DJ, and Regan: Please list a few things that are required for our trucks. Say 10.00 time and slower. Or 11.50 and slower. Just looking for some things that i will need to do to get ready. I know Cage under 11.50 but that will be down the road.

Super73 · 10-04-2010, 02:47 AM

Aproved Helmet
10.99 fire jacket
10.00-11.49 5 point cage
8.50-9.99 8 point cage and window net
C-clip eliminators
Depending on wheels, rear wheels studs the pertrude through an open lug (draglites, prostars ect)
Drive shaft safety loop
If you have a fuel cell, a ground wire to chassis
If the battery is relocated to the rear, it needs to have a kill that actually works
Belts that are in date
Chassis cert if you have more than 6"x6" cut from the factory floor or firewall
Trans blanket or SFI Bellhousing
SFI flexplate
Metal valve stems

Thats a start off memory

Marv D · 10-05-2010, 12:00 AM

Really trucks are no different than cars as far as rules. One that 'used to get' some guys is maximum height of crankshaft. They don't enforce it too much with todays big 4x4's , but used to be the big 24"+ lifted 4x4 monsters put the crankshaft too high. Don't remember what it was but a moot point for this discussion I'm sure (LOL)

Bottom of this page has 15 rules that will get most vehicles to 13's,

http://www.firebirdraceway.com/web/streetdrags.html

add helmet, DS loop and it will be good to 11.50

10-11.49 get's pretty tight, and Super has things pretty well spelled out... and I'm sure his memory is better than mine.

Lugs, wheel center caps, coolant overflow, cut-off for relocated battery, log pants, full t-shirt and closed toe shoes are the ones that get most newbees stuck in tech around here.

10-04-2010, 01:28 AM	#1
ripdog28 Registered User Join Date: Apr 2008 Location: Imperial Beach, CA Posts: 1,040	NHRA truck requirements. Marv, Super, DJ, and Regan: Please list a few things that are required for our trucks. Say 10.00 time and slower. Or 11.50 and slower. Just looking for some things that i will need to do to get ready. I know Cage under 11.50 but that will be down the road. __________________ 69 c-10 BBC 462ci, forged crank, H-beam rods, 10.5-1 KB forged pistons, Dart Iron Eagle 308cc, Straub Cam, Comp Cams chrome moly full rollers, Weiand Team G, Prosystems 950, TH400/3500 Dalenzie stall, Currie 9+ Detroit Locker w/31spline axles.3.5/6in drop. My Build.

10-04-2010, 02:47 AM	#2
Super73 Registered User Join Date: Nov 2007 Location: Bay Area, Ca Posts: 2,841	Re: NHRA truck requirements. Aproved Helmet 10.99 fire jacket 10.00-11.49 5 point cage 8.50-9.99 8 point cage and window net C-clip eliminators Depending on wheels, rear wheels studs the pertrude through an open lug (draglites, prostars ect) Drive shaft safety loop If you have a fuel cell, a ground wire to chassis If the battery is relocated to the rear, it needs to have a kill that actually works Belts that are in date Chassis cert if you have more than 6"x6" cut from the factory floor or firewall Trans blanket or SFI Bellhousing SFI flexplate Metal valve stems Thats a start off memory __________________ ------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49 Last edited by Super73; 10-04-2010 at 02:48 AM.

10-05-2010, 12:00 AM	#3
Marv D Registered Truck Offender Join Date: May 2008 Location: hells training ground (aka Ariz) Posts: 3,118	Re: NHRA truck requirements. Really trucks are no different than cars as far as rules. One that 'used to get' some guys is maximum height of crankshaft. They don't enforce it too much with todays big 4x4's , but used to be the big 24"+ lifted 4x4 monsters put the crankshaft too high. Don't remember what it was but a moot point for this discussion I'm sure (LOL) Bottom of this page has 15 rules that will get most vehicles to 13's, http://www.firebirdraceway.com/web/streetdrags.html add helmet, DS loop and it will be good to 11.50 10-11.49 get's pretty tight, and Super has things pretty well spelled out... and I'm sure his memory is better than mine. Lugs, wheel center caps, coolant overflow, cut-off for relocated battery, log pants, full t-shirt and closed toe shoes are the ones that get most newbees stuck in tech around here. __________________ Still playin with trucks, even at my age! When you're dead, it's only a problem for the people around you, because you don't know you're dead. .....It's kinda the same when your STUPID. I just did my taxes and reviewed my SS statement. Thanks to the current administration it looks like I will only have to work till noon on the day of my funeral.



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