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#1
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nhra rules for seats
anyone know if i can use my 65 seats with a 12pt cage i want to cert to 8.5s? car came with a roll bar and factory seats when i bought it but 8ts gettin some changes
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http://performerrpm.myphotoalbum.com/view_album.php? |
#2
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Not Sure of the ruling but if your going 140 mph, would the 5 way harness hold you IN your factory seat in the event of a crash?
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Dave Polichena |
#3
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seats should be fine, however you need to have some sort of head rest coming off the roll bar to keep you head from coming back. if cage is done right should cert no problem with factory seat and 5 point harnesses
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1969 carousel red firebird 455, richmond 5 speed 1964 540 gto 1971 lemans sport convertible 1972 Maverick under slow construction |
#4
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thats how the car came was with factory seats and 5pt harnes but no headrest. but it was just a roll bar i dont think it movin out too fast
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http://performerrpm.myphotoalbum.com/view_album.php? |
#5
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Something like this is what you would need. And you would need to support the back of the seat from the cage also.
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1964 GTO 501, Edelbrock Heads NA, 3460 lbs. 9.76 @ 137mph 1971 Trans Am Lucy Blue, 11.56 @ 115 1966 LeMans. 462, SD prepped Kaufman D ports. 11.90 @ 112 1976 Trans Am twin turbo 462, SD Edelbrock heads 8.50@159 2009 G8 GT |
#6
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I’m not sure factory seat would be safe at those speeds with a 5 point harness.....safety would be a key factor!
GTO George |
#7
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Just a FWIW, in the event of a crash involving the front of the car hitting a immovable object, you want the lightest seat possible. I had used a olds swivel type seat in my dirt track car and hit the front straightaway wall coming out of turn 4. The seat broke and hit me from behind pushing me into the harness. If the seat hadn't of broken I would have been fine, but I was hurting for a week after being sandwiched between the stock seat and the harness.
Speaking from experience, you want the lightest seat possible in event of this type of crash. The decision is yours, but I know I wouldn't want to re-enact that crash again. |
#8
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Even the cheap plastic seats are are not safe. Seen what can happen from a "slow" 135 mph bump. Need your body in a seat not just on it, especially if your going for an 8.50 cert.
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Dave Polichena |
#9
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Factory seats have slot of cushion in them.....racing seats don’t, hence the belts should hold you in place better..... I would think.
GTO George |
#10
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I would want a light high back racing seat simply because the shoulder harness goes thru the seat and to the main hoop regardless of what any rule says.... same for the crotch belt. My main hoop also has a bracket to bolt up the seat .
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Illinois Outlaw Gassers 6.27@107 9.97@131 |
#11
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From NHRA Rule Book:
Quote:
And here is what it says about seat belts with it: Quote:
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
#12
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Imagine a violent end over end crash then pick your seat and belts.
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1965 TriPower GTO, 1967 GTO, 1969 GTO, 1969 Judge, 1972 GTO, 1977 Smokey and the Bandit, 1989 TA ProStreet, 1968 Firebird NHRA 10.90 racecar, 1963 Tempest S/Gas |
#13
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i was really hoping to keep the factory seats, b7t reading for hours on end on different forums....it looks like i may just have to give those up.
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http://performerrpm.myphotoalbum.com/view_album.php? |
#14
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I believe the seat has to be attached to the roll bar.
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Come take a ride http://www.youtube.com/watch?v=P7Y8Awfk2I0 2008, 2013, 2015, 2016, 2019 Central Il Dragway Mod track champion and 2015 IHRA Div 5 Mod champion |
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