battery hold down/nhra tech - The 1947 - Present Chevrolet & GMC Truck Message Board Network

nate68 · 08-26-2006, 09:06 PM

will the stock battery hold down pass tech at the drag strip for the street legal drags? do i need to modify or change it, or will it pass just fine?

Jim (or anyone else who races at the Redding Drag Strip), what are you doing for a battery hold down? how strict on tech are they? i've checked the nhra rules and this is my only concern

djracer · 08-26-2006, 11:31 PM

I would move the battery to the rear frame rail under the bed! Most tracks don't tech that hard but the oe hold down is weak!!!!!!!!

nate68 · 08-27-2006, 04:58 PM

i might do that eventually but for now it's staying where it is. i have the little optima adapter (like that really makes much of a difference) on there.

i dont want to drive an hour to the track and not pass tech.

Longhorn Man · 08-27-2006, 07:22 PM

call the track with your expected ET and MPH and tell them you have a stock hold down... unless you have a fast truck, you'll probably be OK.

nate68 · 08-28-2006, 12:19 AM

i'm not all that concerned about it. I wanted to know if anyone had any issues a their track.
what was GM thinking? i think this part of the design process was done on friday or a monday (with a case of the mondays)

409biscayne · 08-28-2006, 12:43 AM

Mine passes tech , and it's the stock set up . No problems . I have , however seen how much damage a battery can do if it gets loose , not pretty.
Later ........................................ 409

Longhorn Man · 08-28-2006, 05:24 AM

IUf your stock hold down is in good shape, it is better off than many hold downs. (assumijng the correct size battery is installed)
Slide one side of the battery base under a lip that won't move, then clamp down the other side of the base with a 3/8 inch bolt.
When my first truck got totalled, (front passenger side direct hit) the battery stayed in the tray. She was going an estimated 60 MPH when she hit me.

Myself · 08-28-2006, 11:29 AM

Wrap a ratchet strap around it and the tray, to the rad. support. My Blazer passed that way once.

08-26-2006, 09:06 PM	#1
nate68 Registered User Join Date: Jan 2000 Location: ca Posts: 1,110	battery hold down/nhra tech will the stock battery hold down pass tech at the drag strip for the street legal drags? do i need to modify or change it, or will it pass just fine? Jim (or anyone else who races at the Redding Drag Strip), what are you doing for a battery hold down? how strict on tech are they? i've checked the nhra rules and this is my only concern __________________ 68 short step, 406/700r4, 9" w/discs.

08-26-2006, 11:31 PM	#2
djracer Registered User Join Date: Feb 2001 Location: Wetumpka, Al, U.S. Posts: 8,891	Re: battery hold down/nhra tech I would move the battery to the rear frame rail under the bed! Most tracks don't tech that hard but the oe hold down is weak!!!!!!!! __________________ Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!

08-27-2006, 04:58 PM	#3
nate68 Registered User Join Date: Jan 2000 Location: ca Posts: 1,110	Re: battery hold down/nhra tech i might do that eventually but for now it's staying where it is. i have the little optima adapter (like that really makes much of a difference) on there. i dont want to drive an hour to the track and not pass tech. __________________ 68 short step, 406/700r4, 9" w/discs.

08-27-2006, 07:22 PM	#4
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: battery hold down/nhra tech call the track with your expected ET and MPH and tell them you have a stock hold down... unless you have a fast truck, you'll probably be OK.

08-28-2006, 12:19 AM	#5
nate68 Registered User Join Date: Jan 2000 Location: ca Posts: 1,110	Re: battery hold down/nhra tech i'm not all that concerned about it. I wanted to know if anyone had any issues a their track. what was GM thinking? i think this part of the design process was done on friday or a monday (with a case of the mondays) __________________ 68 short step, 406/700r4, 9" w/discs.

08-28-2006, 12:43 AM	#6
409biscayne Senior Member Join Date: Nov 2005 Location: Spokane , Wash. Posts: 790	Re: battery hold down/nhra tech Mine passes tech , and it's the stock set up . No problems . I have , however seen how much damage a battery can do if it gets loose , not pretty. Later ........................................ 409 __________________ Can-Am Motorsports 37 Chev Coupe 331 4 speed 5.13 posi . ex-gasser . 64 Biscayne 409 2x4 4 speed 4.11 posi 65 Nova Wagon Drag Car 383 t400 (Dragin-Wagon) 68 c10 cst 396 t400 a/c buckets lwb 4.11 posi (SOLD)

08-28-2006, 05:24 AM	#7
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: battery hold down/nhra tech IUf your stock hold down is in good shape, it is better off than many hold downs. (assumijng the correct size battery is installed) Slide one side of the battery base under a lip that won't move, then clamp down the other side of the base with a 3/8 inch bolt. When my first truck got totalled, (front passenger side direct hit) the battery stayed in the tray. She was going an estimated 60 MPH when she hit me.

08-28-2006, 11:29 AM	#8
Myself Registered User Join Date: Oct 2005 Location: Northern Arkansas Posts: 1,131	Re: battery hold down/nhra tech Wrap a ratchet strap around it and the tray, to the rad. support. My Blazer passed that way once.



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