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How do you secure your factory seat to meet N.H.R.A #1258799
06/28/12 09:52 AM
06/28/12 09:52 AM
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NEW YORK
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MAXEDWEDGE Offline OP
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I switched from a jazz seat to a pro car seat .How do i secure the back of the seat to the roll bar . The jazz seat i just drilled a hole threw it and put a nut and bolt that the harness straps attached to . Thanks in advance

Re: How do you secure your factory seat to meet N.H.R.A [Re: MAXEDWEDGE] #1258800
06/28/12 01:41 PM
06/28/12 01:41 PM
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Crizila Offline
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This is what I did. Made it adjustable to go with the seat rail adjusters. Seat is in the most rear position.

7268922-seatadjuster.jpg (158 downloads)
Last edited by Crizila; 06/28/12 01:45 PM.

Fastest 300
Re: How do you secure your factory seat to meet N.H.R.A [Re: Crizila] #1258801
06/28/12 01:54 PM
06/28/12 01:54 PM
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NEW YORK
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MAXEDWEDGE Offline OP
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thanks for the reply. i have a stock seat in it now and the back of the seat is not riged enought to put a brace like that

Re: How do you secure your factory seat to meet N.H.R.A [Re: MAXEDWEDGE] #1258802
06/28/12 02:16 PM
06/28/12 02:16 PM
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Posts: 505
Northampton Pa
65 NSS 500 Offline
mopar
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Northampton Pa
What point is that required is it 11.99 or 10.99. Just curios,


1965 Coronet 500 340 40+ Passon 4sp 12.90 2.6 60' street tires
Re: How do you secure your factory seat to meet N.H.R.A [Re: 65 NSS 500] #1258803
06/28/12 02:37 PM
06/28/12 02:37 PM
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Posts: 528
Oak Grove, MN
lowflyingdart Offline
mopar
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Oak Grove, MN
Quote:

What point is that required is it 11.99 or 10.99. Just curios,




11.49


"I have not failed. I've just found 10,000 ways that won't work." Thomas A. Edison
Re: How do you secure your factory seat to meet N.H.R.A [Re: lowflyingdart] #1258804
06/28/12 03:11 PM
06/28/12 03:11 PM
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Finalnd, Perkele
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jyrki Offline
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Finalnd, Perkele
How do you secure a true factory seat, a bench or a bucket?


Plynouth VIP '67 TT IC EFI
Re: How do you secure your factory seat to meet N.H.R.A [Re: jyrki] #1258805
06/28/12 06:18 PM
06/28/12 06:18 PM
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Philadelphia
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radar Offline
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Philadelphia
I never did one for tech inspection but I've welded up some broken seat backs on stock buckets. On my 72 a-body the plastic back unscrews to reveal the stamped frame with the covers hog ringed on. I don't see why you couldn't reinforce the seat frame and T off of that to a bracket that would poke thru out the back? It wouldn't have to add that much weight and the factory back would just have one new hole in it.

Good luck

Re: How do you secure your factory seat to meet N.H.R.A [Re: radar] #1258806
06/28/12 10:44 PM
06/28/12 10:44 PM
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MI, usa
dvw Offline
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Mines not factory Chrysler but looks like one. Honda frame with a tube welded into a stiffener across the back.
Doug

7269516-backview.jpg (102 downloads)
Re: How do you secure your factory seat to meet N.H.R.A [Re: dvw] #1258807
06/28/12 10:46 PM
06/28/12 10:46 PM
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MI, usa
dvw Offline
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Cage mount

7269523-racecar662.jpg (120 downloads)
Re: How do you secure your factory seat to meet N.H.R.A [Re: dvw] #1258808
06/28/12 11:09 PM
06/28/12 11:09 PM
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Michigan
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SC304 Offline
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Michigan
Man that ride looks familiar?

Re: How do you secure your factory seat to meet N.H.R.A [Re: SC304] #1258809
06/29/12 05:50 AM
06/29/12 05:50 AM
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NEW YORK
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MAXEDWEDGE Offline OP
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My cage looks like yours ,how are the stocker guys doing it with out destroying the seat

Re: How do you secure your factory seat to meet N.H.R.A [Re: MAXEDWEDGE] #1258810
06/29/12 02:15 PM
06/29/12 02:15 PM
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Motor City
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6PKRTSE Offline
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Motor City
Not stock seats but I went with Kirkeys in my Challenger. Just showing some ideas as towhat we did for mounts.
1st pic.


1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.
Re: How do you secure your factory seat to meet N.H.R.A [Re: 6PKRTSE] #1258811
06/29/12 02:16 PM
06/29/12 02:16 PM
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Motor City
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6PKRTSE Offline
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Rear mount to cage.

7270157-100_1560.jpg (72 downloads)

1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.
Re: How do you secure your factory seat to meet N.H.R.A [Re: 6PKRTSE] #1258812
06/29/12 02:18 PM
06/29/12 02:18 PM
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Motor City
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6PKRTSE Offline
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Motor City
2ND pic was the driver side. This is the passenger side mount to the cage.


1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.
Re: How do you secure your factory seat to meet N.H.R.A [Re: 6PKRTSE] #1258813
06/29/12 02:19 PM
06/29/12 02:19 PM
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Posts: 4,566
Motor City
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6PKRTSE Offline
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Motor City
All painted & ready to go.


1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.
Re: How do you secure your factory seat to meet N.H.R.A [Re: jyrki] #1258814
06/29/12 06:29 PM
06/29/12 06:29 PM
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Posts: 1,062
Amherst,NY
challengermike Offline
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Quote:

How do you secure a true factory seat, a bench or a bucket?




A factory seat doesnt need to be hooked to the cage. Only aftermerket or a non factory seat.

Re: How do you secure your factory seat to meet N.H.R.A [Re: challengermike] #1258815
06/29/12 07:40 PM
06/29/12 07:40 PM
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anywhere@ anytime
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actionange Offline
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Quote:

Quote:

How do you secure a true factory seat, a bench or a bucket?




A factory seat doesnt need to be hooked to the cage. Only aftermerket or a non factory seat.





Been running this set up in NSS as fast as low 10's and it passes tech everywhere I've been.

Re: How do you secure your factory seat to meet N.H.R.A [Re: challengermike] #1258816
07/04/12 08:13 AM
07/04/12 08:13 AM
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NEW YORK
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MAXEDWEDGE Offline OP
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MAXEDWEDGE  Offline OP
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NEW YORK
thanks for the info i bought a pro car rally seat i guess i'll have to tear it apart and see what i can do

Re: How do you secure your factory seat to meet N.H.R.A [Re: actionange] #1258817
07/04/12 10:06 AM
07/04/12 10:06 AM
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Oakland, MI
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dizuster Offline
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Quote:


Been running this set up in NSS as fast as low 10's and it passes tech everywhere I've been.




Ok here is my two cents... for what it's worth, I am a seating engineer so I feel like my opinion is probably worth something...

No offense, but "passes" and "safe" are two different things. The main reason the rule is there is because of any impacts that could happen from the rear (or rear angle) the roll bar needs to support the seat.

Even modern seats with high strength steel back frames, and high strength dual recliner mechanisms aren't very good at moderate speed rear impacts.

Our old junk (or even the new race seats) certainly won't do it either.

Remember the belts can take all of the load in a front crash. The seat has to take all of the load in any rear crash.

Check out this old video. FMVSS 301 is a fuel tank integrity test, but watch the seats/occupants about 5 seconds in. Obviously the seat is doing nearly NOTHING in the crash. And this is only at 30mph!!

http://www.youtube.com/watch?v=sxr_IwQkGv0

The other thing is that there is significant rebound after a frontal crash that the seat need to take too. Even an offset frontal crash (with side load) does bad things to these old seats... Look at these old 60's crash video's...you can see why you want the seat tied to the bar, or at least make sure the bar is below the top of the back to keep it from folding over. You can see in some of these clips that the seat actually has a bar welded behind it (Watch the rear impact at 1:52). The seat stays upright in a rear crash, and keeps the occupants safe. A perfect example why the bar needs to be below the top of the seat back.

http://www.youtube.com/watch?v=siT-SIfOnQw&feature=related

Imagine spinning your super stocker around, or getting nailed by another fast car if you/he crossed the centerline? That cross bar would be right through your back. The bar should be below the top of the seat back to make sure it won't collapse completely, that's why they want it tied. Connecting it also keeps the seat from rocking in a side impact too.







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