Tag Archives: thinking out loud again

Negotiations have been made

Mrs. the Poet and I have negotiated a peace for our time. She has agreed to a date for the trip to the upscale burger place so I can get my free burger and I can buy dinner and we can sit down together and share a meal out. The problem is Mrs. the Poet has a back problem that causes her to drag her foot and finds the 0.4 mi. walk to the bus stop uncomfortable at best, with varying levels of pain when it’s not the best, and I have funds that I have earned from various gigs that I wish to spend on her, taking her out to dinner. The compromise is sometimes she has to go out and do financial things in person at the bank, and when she has to walk the 0.4 mi. anyway she might as well go out with me. I know that doesn’t sound like much for some people, but I count it as a win.

Yesterday we had a RPG session/dinner. I have noticed a tendency for my fellow party members to insist I do the tank thing because “the Old Man can’t be killed” which is “not factually correct”. My character can be killed and has been killed once in session, and three times in back story, and getting killed is “not pleasant” for me/him. I mean seriously, if my character wasn’t already insane but functional, getting killed over and over would push him over the limit. Of course the game setting we are in human or other sentient life has minimal value to the society, so they are just playing the way the setting dictates. The dinner part was the guy who hosted the game had attended a catered soiree and got to take the leftovers home, then they had dinner, and we got to have dinner from the leftovers of his leftovers, and were sent home with the leftovers from our dinner. That’s a lot of leftover.

Something else that has been “fun” has been the paperwork for signing Mrs. the Poet up for Medicare, which she has to do this year or else face a financial penalty. They can’t call it a “fine” because fines are either a criminal or civil punishment for breaking a law and require a court judgement, and this just gets assessed without going to court. Of course almost none of the docs we have been reading are in English, American or otherwise, but are in that opaque dialect most of us call “legalese” which is close to actual English, but some of the words don’t mean the same. In fact some words in legalese are the exact opposite of the same spelling in English, being the meaning they had 200 or 300 years ago when legalese was declared the official language of laws. Anywho, wading through the paperwork has been so much of an exercise we could count it as an anaerobic workout.

And one of the things about building a car from nothing is there are so many sub-systems that require planning that they are separate projects in and of themselves, like the fuel system. I have been looking at the fuel pumps and fuel fillers for the 16 gallon fuel cell blanks Speedway Motors sells, specifically the one that has a long dimension of 25″. I have been thinking of putting that behind the rear axle on the left side to clear the center section and QC gears that will be offset to the right to line up with the engine that is offset to balance the driver on the left for racing. Street driving is not as critical about left to right balance compared to racing, because street driving almost never gets to lateral accelerations or transitions where that degree of control is important. So I can put the heavy gas tank on the same side of the car as the driver for the street as long as I drain the gas out before going racing and switching to a tiny tank that has just enough capacity for one or two runs that doesn’t change the balance of the car as the run progresses. And I could use another blank cell as the trailer storage tank for holding the gas while I’m racing or driving ridiculous distances between gas stations. I think 32 gallons total should be enough to cover the distance between gas stations no matter how far apart they are in the real world. Seriously, the 16 gallon US tank will be enough capacity to get me anywhere east of the Mississippi River without fear of running out of gas, and doubling that will take care of west of the Mississippi without range anxiety. Also I have been looking at a Holley part that bolts to a fuel cell in place of the plate that holds the filler cap and functions as a filler and also holds the pumps and the connections to external plumbing to feed the engine, but there is a snag with using it for the way I want to orient the blank fuel cell in the Sprint-T. The standard assembly from Holley only works up to a 12″ deep tank, and as I want to use it the tank will be 17″ deep. Normally this tank is 25″ wide by 17″ long by 9″ deep, but I want to rotate it to make the 9″ dimension the length and the 17″ dimension the depth. In reality it would be less expensive to use separate components for the filler plate, pumps, and pickup, and do the same thing performance wise as the Holley assembly, but it would be less tidy, especially since I will have two tanks to feed from. Using just one external pump with switched pickups between the two tanks will be cheaper and less complicated. There is a 3/8” hole in the center of one face of the 25″ by 17″ dimension that was formed by the manufacturing process used to mold the cell. This would be the perfect place to route the line from the pickup to the pump as for street use it wouldn’t be that much of a restriction to have two right angle fittings on either side of a bulkhead fitting. Inside would run to the pickup, outside to the switching valve between the two tanks and the fuel pump. Installing the filler plate would be the same as installing the Holley assembly except without the falderal of making sure the pickup on the fuel pump(s) reach the bottom of the tank.

Now on the trailer tank the 3/8” fitting will probably be used as a drain to transfer the gas back to the car after the race day is over. And the pump doesn’t have to be the same high-pressure/high flow pump used to keep the fuel injection fed on the car, it just has to move gas at a reasonable rate at no pressure in particular from the trailer to the car through a filter. Gotta use a filter transferring from one tank to the other, the transfer from the car to the trailer likewise has to go through the fuel filter so the gas going to the trailer is free from dirt so the filter going from the trailer to the car doesn’t have as much work to do. If I could put a filter on the filler I would do that, too. Dirty gas is very bad for injectors.

And now I need to read my e-mail before the battery dies.

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No NASCAR race, and trying to rain here

No race to watch on the flat screen, and the weather is threatening so I can’t go for a walk. That means I have to post something here or go crazy. Going crazy is no fun, and I think you have figured out by now what choice I made.

On really good thing about the Pentastar for the Sprint-T is its extremely short length. There’s 43″ between the firewall and the centerline of the front axle on the Sprint-T and allowing for movement the steering linkage is 7″ behind that so 36″ from the firewall to the effective limit on the space. There’s a 3.5″ thick radiator to leave room for and a 9″ long steering box with a steering shaft that has to snake around the radiator, that goes between the radiator and the axle. Measuring the space from the part where the Pitman arm bolts to the rearmost part of the box as installed on the car and adding the working length of the Pitman arm (7″) I get another 12.5″ between the steering linkage and the radiator leaving just 23.5″ unless I put the radiator over the steering box like they do on the Speedway T-Bucket kit. Putting the radiator in the space between the front of the box and the steering linkage solves a lot of steering issues at the cost of raising the CofG slightly, but the radiator is only 19″ tall and there is literally 27″ to put it in. Mounting the steering linkage below the axle leaves even more room for the radiator in front of the steering box because the radiator can go over the linkage and still leave room for the axle to travel up and down. At this point in the design the radiator is a box that is 26″ wide by 19″ tall and 3.5″ thick that can be moved back and forth and up and down until room has been found for everything else. Anyway, the engine is a 20″ box in front of the firewall that leaves 16″ for everything else. And here you are reading in real time my thought processes as I build the front end of the car.

Recentering my thoughts, there is 16″ between the steering linkage and the front of the engine, the problem is the steering box and the radiator are trying to be in the same bit behind the axle. I could put the radiator on the right and the steering box on the left and have room for both. The steering box is 4.5″ from the mounting face to the right side of the box, 5.2″ total width, and I have 34″ of width to play with behind the axle, 17″ on either side of center. That means I could stuff a 28″ radiator in the car and still not hang out past the frame rails/4-bar if I put the radiator next to the steering box. If I choose to slide the radiator between the steering box and the steering linkage then I have more room for radiator width, but only just, and the radiator outlet would have to be passenger side to prevent interference. The widest radiator I can get a passenger side outlet at the places I’m looking is 31″ which is the inside to inside width of the bottom frame rails when I build to a width of 34″, serendipitous isn’t it?

And it’s time to check e-mail and get ready for bed.