Stocker roll cage bar beyond firewall rule......
I just ask the crew on the west coast about running the roll cage bars through the dash beyond the firewall and attaching to the frame. They said there was no safety advantage in doing that and NO to the idea in stock eliminator. The NO is ok with me as long as we are consistent but am I missing something on the safety advantage ??? Can I weld the mounting plate to the floor pan ???
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Re: Stocker roll cage bar beyond firewall rule......
I wonder where he got his degree in mechanical engineering. .
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The statement was sacasm |
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now there are 8 second stock eliminators, shoudnt safety be #1 priority. What is NHRAs reasoning behind not allowing roll bars to tie the complete chassis together? Firewall flex and broken trans cases can be dangerous at high speeds. Look how long it took NHRA to allow aftermarket brakes in Stock which in my opinion any component that improves safety should never be an issue. The other issue I have problem with is steering, I think rack and pinion should be allowed in all classes, to replace antique steering on most cars beside newer ones.
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Thank you! |
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And extending the cage is ONLY a safety issue. There's NO performance benefit at all to stiffening up the chassis or getting that heavy-*** old steering out of the front and replacing it with lite stuff. Here's a novel idea, If you personally don't feel safe in your 8 second Stocker, then get a 12 second Stocker! |
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Does this even get looked for in tech ??? I find it hard to believe that the new stocker factory rockets are complying with this rule----- really ???
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I don't understand what you mean by not allowing roll bars to tie the chassis. You can take a roll bar and turn it into a roll cage and tie up the chassis by welding it to the frame connectors in a unibody car or welding it to the actual frame in a car that has a full frame. As a matter of fact, the rules requires in cars with a full chassis, for the roll cage and/or roll bar, to be welded to the chassis. A well designed roll cage will not require any additional tubes to go past the firewall. I have seen many cars that run faster than 8.50 seconds with a SFI Spec 25.4 or 25.5 cage without any additional tubes past the firewall. By the way, a well built roll cage, can improve the performance of the car. |
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Bravo! |
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Well said, Rory!!!!!!
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There ya have it...I would like a rack out in front on mine too....but...hey wait, but I have got a 25.3 cage also. Some of you guys have got to realize that there are "dual" purpose cars that are built out there, while they do fit into various NHRA "stock" eliminator classes they also are built to run with "big" power in many of the so called stock suspension "street" racing events across the country. There can be a happy medium, just something for the purists to ponder |
Re: Stocker roll cage bar beyond firewall rule......
Some of you might remember Pappy Welds sprint car from the '60s that 2 or three drivers died in and the car still looked good. Stronger than most bridges and no crumple area. If you don't feel safe in your stocker build a super stocker.
My $.02. Pete |
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Thats easy for you to say because you have a 1985 Mustang which was equipped with rack and pinion steering since 1974. The first GM rear wheel drive car to have rack and pinion was the 93 Camaro/Firebird, the first rear wheel drive Mopar to have a steering rack was the Dakota truck in 87. I have a 92 Firebird which has stock type steering but heavily modified for oil pan clearance and has a 40 year old Vega steering box. My car exceeds 160 MPH in the quarter. I have personally witnessed 3 steering boxes break after coming down from a big wheelie. Ive never seen a rack break. If I did switch to a rack, I would make sure it was the correct width and make sure the bump steer was right. Steering and brakes are safety items and there should be no rules that compromise safety. NHRA allows aftermarket brakes which is far more of a performance enhancement than a steering system. Allowing front frame rails to flex is also ignoring safety. |
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stock S-10 box wont work and it virtually the same anyway, my pitman arm is modified by Ed Quay to drop the entire steering system to clear my gigantic oil pan. The Firebird is a Super Stock/10.5 heads up car. Im just expressing my opinion on safety. My present stocker has a steering rack and doesn't run fast enough to even really need a helmet.
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(I work for an independent repair shop) |
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it really doesn't matter if the box is new or not, one of the ones I saw break was a Flaming River unit on a G body Monte Carlo.
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I actually broke the rack on my 93 Mustang but that was my own fault hammering in a solid aluminum bushing that probably was a little too big OD |
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OH BTW, a Vega box and an S-10 box ARE NOT virtually the same anyway,shape or form! |
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Ed Quay modified all the steering components and even installs a steering damper because otherwise the steering wheel will jerk out of your hand after coming down from a wheelie.
The only real difference is the S10 box is direct fit where a power steering box was. Ive never seen a Vega box break but I have seen 2 S10 and 1 Flaming River break. |
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Great idea..............
Just turn the world upside-down so that an 8 second, 157 MPH stocker, which doesn't even belong in stock is safer............. If a Stocker can run over 135 MPH it should be a Super Stocker..... Do any real Stockers run over 135 MPH????????????? |
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X amount of total car weight with 300 or 400 hp is one thing, but the same weight in the same car with 1000, 1200 or 1500+ hp is another, I see his point But, what do I know |
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and doing it on 9" tires within the rear suspension rules of stock eliminatoris an accomplishment. |
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The NHRA is reactive not proactive, just ask Bobby DeArmond.
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Does IHRA allow bars ahead of the firewall in Stock?
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