Mini Stock Seat Install

The white flag was out. I looked right, my eye line just cresting the head support of my Kirkey seat and all I could see was the blur of lights and the nose of another racer.

Brakes. Downshift. Turn. We're coming out of Turn 4 and I'm planted into the aluminum seat, neck and neck with the other driver and I reach for the shifter one last time. I pull back and hammer down even harder than before and start to pull ahead.

Five hundred feet and closing to the finish, inches separating my competitor and me. Three hundred feet. We're getting closer and City Boy is starting to inch away, just five more seconds to the finish.

The crowd is going wild and I make one last attempt to put my foot all the way through the..."Seriously dude. Get out of the car, I have to finish welding this seat bracket."

Mini Stock Seat Install
To some, this may look like a half complete seat, an idiot, and a 4x4 block of wood in a piece of junk Mustang. To us, it looks like the beginning of a crucial part of fabrication—the driver seat and horizontal door bars in the City Boy.
To some, this may look like a half complete seat, an idiot, and a 4x4 block of wood in a p

Damn it Pete Epple! But, he was right. This seat certainly wasn't about to install itself and before I can spend any more time daydreaming about racing, we have a long way to go.

In fact, since you last saw the City Boy get the initial rollcage work done, Pete and I (mainly Pete) have spent countless hours and many late nights working on the car after work, without seeing much visible progress. But honestly, that's OK, since much of the effort here is really spent thinking things out, measuring, checking and measuring some more before making any cuts.

In this edition of the City Boy chronicles, we're going to spend some time talking about properly installing a seat in our Mini Stock as well as going over our complete plan for fortifying the rollcage and adding some much needed safety to the driver's compartment.

Mini Stock Seat Install
Kirkey Racing builds a plethora of great race seats and, for our Mini Stock project, we chose the company’s 68-series 18-degree full-containment layback seat, which we ordered from Summit Racing.
Kirkey Racing builds a plethora of great race seats and, for our Mini Stock project, we ch

If you recall, when we left you last, we were waiting on a new full-containment seat to arrive, so that we could build a solid seat structure, install it into the Mustang, and finish the rest of the horizontal door bars.

Not a couple of days after calling up Summit Racing and placing our order, complete with measurements, we had a Kirkey 18 Degree Layback Full Containment seat hanging out in our mailroom and enough DOM tubing to almost finish our project.

Now, we know what you're thinking and yes, an 18-degree layback full-containment seat may sound like overkill in a Mini Stock, but you just can't put a price on safety. Actually, to that end, you can put a price on safety and the Kirkey only cost us 565 bucks, which is far cheaper than a trip to the hospital, or even one visit to a chiropractor.

Mini Stock Seat Install
Before we could install the seat or make any decisions regarding its placement, Pete Epple had to install the first horizontal door bar on both the driver and passenger sides. By the rules, we need at least four horizontal bars on the driver side and three on the passenger.
Before we could install the seat or make any decisions regarding its placement, Pete Epple

The Kirkey is also extremely comfortable and thanks to the TIG-welded, 0.100-inch thick 5052-grade aluminum construction; it's light enough to use in our project without any concern.

As we said, ordering the seat from Summit Racing was easy, but mounting it in the Mustang was an entirely different story. To keep it in place and safe, the fabricators at Kirkey Racing recommend attaching it to the chassis in six places—four under the seat bottom and two just below the shoulder belt area.

Being that our Mini Stock Mustang still has the stock floor intact, we could have used it as a base for our seat, but the position was all wrong (too low) and the stock sheetmetal in these cars is flimsy and thin from day one, let alone several generations later.

With the floor ruled unsafe by our lead fabricator, Pete Epple, we got to work installing a hoop that attached to our lowest horizontal door bar, the stock rear interior bulkhead of the Mustang and the main hoop's horizontal bar, a design that basically created a floating tube frame to which we could secure our seat. To get the layback correct (18 degrees), Pete simply fabricated a square lower bar, which welded to the floor hoop and bolted the seat in place.

Mini Stock Seat Install
After measuring the distance between the main hoop and the A-pillar down bar, Pete jumped over to the band saw and started cutting. As always, remember to measure twice and cut once!
After measuring the distance between the main hoop and the A-pillar down bar, Pete jumped

Wondering how we went from installing a really nice and pre-bent Competition Engineering 'cage kit to bending our own hoops? Enter Lowbuck Tools and the company's awesome Lowbuck Hydraulic Tubing Bender.

Built for anyone looking to bend tubing without the hassle and expense of a gigantic setup (that would be us!), the Lowbuck bender comes pre-assembled and ready to work right out of the box.

To use it, Pete literally pulled it out of the box, placed in on the floor of our makeshift chassis shop, and started bending. At $510, it certainly lived up to its name and, along with the Lowbuck notcher that we showed you last time and a band saw that we borrowed from a friend (thanks Marc), we were able to bend, notch, cut, and weld almost anything we can think of, without having to shell out our hard-earned, and much needed, cash to a real chassis shop. Anyway, enough about the cool stuff, let's get to work!

  • Mini Stock Seat Install
    With the bar cut, Pete and Editor Fisher positioned the end of the tube into our Lowbuck Tools’ tubing notcher and put the squeeze on the mild steel. It may look too good to be true, but the Lowbuck notcher works great with just a tiny bit of elbow grease.
    With the bar cut, Pete and Editor Fisher positioned the end of the tube into our Lowbuck T
  • Mini Stock Seat Install
    After tacking the driver-side lower bar in place, Pete cut two additional bars for the passenger side and tacked them in as well. Notice how Pete uses a ratchet strap to hold the tubes tight before tacking them for a quality fit and finish.
    After tacking the driver-side lower bar in place, Pete cut two additional bars for the pas
  • Mini Stock Seat Install
    Time to break out the Lowbuck Tools’ tubing bender, which is a self-contained, super-simple tubing bender that can handle 90-degree bends with ease. Like the Lowbuck tubing notcher, the simple looks can be deceiving…
    Time to break out the Lowbuck Tools’ tubing bender, which is a self-contained, super-simpl
  • Mini Stock Seat Install
    …but the Lowbuck Tools’ bender works like a charm. We didn’t even have to bolt it down to anything to make it work, which makes this the perfect tool for anyone working in small spaces or on borrowed time at someone else’s shop.
    …but the Lowbuck Tools’ bender works like a charm. We didn’t even have to bolt it down to
  • Mini Stock Seat Install
    All that bending, which was, as we said, super simple, resulted in this 90-degree bar, which we are going to use as the base of our seat mount. The side closest to you will weld to our lower horizontal door bar, while the opposite end attaches to the factory rear seat bulkhead.
    All that bending, which was, as we said, super simple, resulted in this 90-degree bar, whi
  • Mini Stock Seat Install
    Using a piece of cardboard, Pete built a template for the reinforcement plate, which will weld to the bulkhead and give the lower seat mount a solid and safe foundation.
    Using a piece of cardboard, Pete built a template for the reinforcement plate, which will
  • Mini Stock Seat Install
    Here is the plate in metal. Luckily, we had a couple of extra 6x6-inch plates left over from the Competition Engineering ’cage kit, so it was as easy as cutting the plate, forming it to fit over the existing metal, and tack welding everything in place.
    Here is the plate in metal. Luckily, we had a couple of extra 6x6-inch plates left over fr
  • Mini Stock Seat Install
    Next, Pete hung the seat over the new framework and measured to find the correct height and distance from the main hoop and the steering wheel. Remember, you want to be comfortable in the seat but also far enough away from the ’cage to keep you safe in the event of an accident.
    Next, Pete hung the seat over the new framework and measured to find the correct height an
  • Mini Stock Seat Install
    A quick trip to Home Depot took care of our 1x1-inch square bar problem (HD has a decent selection in a pinch, you know), and we were ready to make our first lower seat mount.
    A quick trip to Home Depot took care of our 1x1-inch square bar problem (HD has a decent s
  • Mini Stock Seat Install
    Kirkey Racing recommends four bolts in the lower seat area (two on the flat layback section and two on the under-thigh area) and two just below the shoulder belt area. Here, you can see Pete measuring for two of the four lower mounting holes.
    Kirkey Racing recommends four bolts in the lower seat area (two on the flat layback sectio
  • Mini Stock Seat Install
    Quick work with the drill and some time with a cut-off wheel and we had a lower seat mount. After drilling the 1x1-inch square bar and test fitting it, Pete welded nuts to the lower portion of the piece, which will allow us to simply set the seat in place and drop in two bolts to install it, without fiddling under the seat for the loose nuts.
    Quick work with the drill and some time with a cut-off wheel and we had a lower seat mount
  • Mini Stock Seat Install
    Pete set the height of the rear lower bar, made sure it was square against the lower horizontal door bar...
    Pete set the height of the rear lower bar, made sure it was square against the lower horiz
  • Mini Stock Seat Install
    ...and positioned it into the correct place for the bottom of our seat. Take your time here and make sure this is in the correct spot or you’ll never be comfortable in your car!
    ...and positioned it into the correct place for the bottom of our seat. Take your time her
  • Mini Stock Seat Install
    With the flat portion of the Kirkey layback seat bolted in place, you can see that the lower-thigh portion sits up approximately 3.5 inches from the lower seat hoop. This design gives the seat the proper 18-degree layback (when level) and positions your legs into a comfortable spot.
    With the flat portion of the Kirkey layback seat bolted in place, you can see that the low
  • Mini Stock Seat Install
    Unfortunately, due to the angle of the leg support, using a flat bar similar to the rear-mount wasn’t possible with our Mustang. However, using a piece of round tubing, a nut, bolt, and a washer, we were able to fabricate two stanchions to secure the seat.
    Unfortunately, due to the angle of the leg support, using a flat bar similar to the rear-m
  • Mini Stock Seat Install
    Simply position the nut halfway into the tube and lightly tighten the bolt and washer in place. Then, with everything square and level, weld the nut and washer to the tube. It may not look high-tech, but it creates the prefect stanchion for mounting the seat.
    Simply position the nut halfway into the tube and lightly tighten the bolt and washer in p
  • Mini Stock Seat Install
    Cut to approximately 3.5 inches in total length, Pete tacked the homemade stanchion in place and threaded a bolt in through the existing seat holes. One additional stanchion for the right side of the seat and our four-bolt base was complete.
    Cut to approximately 3.5 inches in total length, Pete tacked the homemade stanchion in pla
  • Mini Stock Seat Install
    With the bottom in place, we moved to securing the top of the seat, using the provided holes located just below the shoulder belt area.
    With the bottom in place, we moved to securing the top of the seat, using the provided hol
  • Mini Stock Seat Install
    Just like the rearmost lower seat mount, we measured the seat and cut a 1x1-inch tube to fit within the seat back. Then, Pete measured the distance between the boltholes, marked them, and drilled the square tubing.
    Just like the rearmost lower seat mount, we measured the seat and cut a 1x1-inch tube to f
  • Mini Stock Seat Install
    Again, just like the lower mount, we welded nuts to the back of the square tube and tightened the mount to the seat using a pair of bolts. This design will allow for easy removal and a clean install. Here, Pete measured the distance to our main hoop horizontal bar…
    Again, just like the lower mount, we welded nuts to the back of the square tube and tighte
  • Mini Stock Seat Install
    …and fabricated a rear support out of another piece of 1x1 square tubing. You could use one here if you felt like it, but Pete and Editor Fisher wanted to build two— one for each bolt hole—which reduces the risk of failure and the likelihood of an injury.
    …and fabricated a rear support out of another piece of 1x1 square tubing. You could use on
  • Mini Stock Seat Install
    The 18-degree Kirkey layback seat ships with a well thought out and nicely engineered head restraint, which is adjustable based on driver height and visual preference. According to the instructions, you want to install the restraint even with your cheekbone and low enough to see over. It looks a bit low here, so we may move it up once we install the harness and get in our final driving position.
    The 18-degree Kirkey layback seat ships with a well thought out and nicely engineered head
  • Mini Stock Seat Install
    With the seat firmly installed and in its final position, we got to work on the four driver-side horizontal door bars. As you can see, these mimic the bars found in all NASCAR race cars and trucks (hence the name, NASCAR bars) and intrude into the stock door cavity to help protect the driver during a side impact or rollover.
    With the seat firmly installed and in its final position, we got to work on the four drive
  • Mini Stock Seat Install
    Looking into the car from the driver-side fender, you can see the topmost NASCAR-style door bar tacked in place and the 18-degree containment seat in place. We still have two additional NASCAR-style bars to install (evenly spaced between the lower and upper bar), along with a couple other structural bars and a whole bucketful of gussets to weld, but by the next time you see the City Boy, the ’cage will be complete and ready for action!
    Looking into the car from the driver-side fender, you can see the topmost NASCAR-style doo
SOURCE
Lincoln Electric
22801 St. Clair Ave
Cleveland
OH  44117
216-481-8100
www.lincolnelectric.com
Williams Lowbuck Tools
Norco
CA
951-735-7848
www.lowbucktools.com
Summit Racing
800-230-3030
http://www.summitracing.com