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Post by dietcoke on Mar 19, 2016 21:26:29 GMT
Fast time of the day by a half second today on the short test and tune course (~35-40 second average times). Car has (way) too much rear camber, isnt using the whole tire. Front looks better, but perhaps still overcambered.
I was fighting the cold all day, for some reason it was 40 and windy, ridiculous. Couldnt get the hoosiers above about 80 degrees, which is no bueno for traction.
I'm going to take a degree out of the back and a tiny bit out of the front and see what tomorrow's first points event of the season holds. Hopefully another FTD and some better weather.
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Post by dietcoke on Mar 21, 2016 11:39:40 GMT
Raw timed a couple national champs today by a second and some change at the autoX. Coned out both good runs, but the car works and I still finished third overall. Alignment change was very positive. I feel I need better brakes, might be time to take off the mystery donor brakes/pads and put some real ones on. Feel pretty good about it, did the alignment with hand tools and measuring tapes and had a passenger in my runs. Car's going to be a competitor with some more seat time.  |
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Post by greg on Mar 21, 2016 18:03:16 GMT
Looks funny wingless
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Post by dietcoke on Mar 26, 2016 4:15:50 GMT
Lot of little things going on. The hydramat install, of course, waiting on a different style of pump to finish that - certainly a big deal. Replaced the coolant overflow with a dorman unit, did not like the steel can I had (heavy and cant see coolant level). It dropped the tank about an inch and out of the airstream which is good. Wiring the fuel level sender so I can have a fuel gauge (on the way) and tonight's project is to actually pass the engine harness through the firewall instead of over it; which will involve putting a new weatherpack on the harness where the crank sensor plugs in, since I can't actually access the crank sensor plug to remove it due to tight fit of the starter against the block. Becoming more and more a finished product as much as I can afford to get it there. Exomotive supposedly has enough blue-black to make me a second nosepiece, this one is going to be a full hood/front, instead of a nosecone. I don't regret doing the cone, but it was the easiest thing to get the car on the road at the time, and not the best choice overall. Anyway, I'll do a complete post on the hydramat when it's finished so there's some continuity there. In the meantime, here's a weatherpack on the crank sensor. Exciting. You can also see the new coolant tank.  |
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Post by dietcoke on Mar 26, 2016 10:39:22 GMT
Got that harness tucked through the firewall finally. Before, it was going over the top through the tray...  After. Much cleaner, and out of the wind's path. Making room for a full hood to run.  |
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Post by dietcoke on Mar 29, 2016 3:54:18 GMT
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Post by mawdo81 on Mar 29, 2016 9:28:24 GMT
Does petrol not conduct electricity then? Never really given it much thought before but if it did it would short those connections to the pump.
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Post by dietcoke on Mar 29, 2016 10:31:03 GMT
Does petrol not conduct electricity then? Never really given it much thought before but if it did it would short those connections to the pump. As opposed to the factory open terminal ends? Think about what you're asking. This is DC voltage (and not very much of it, either). The gasoline actually flows straight across the armature and brushes inside your fuel pumps, it's part of what cools them. Paraffin is a fantastic insulator, path of least resistance, etc etc. |
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Post by mawdo81 on Mar 29, 2016 10:48:25 GMT
Never seen the pump up close and the focus one is significantly different in outward appearance, including wiring. I suppose, when you think about the chemistry, there's no free ions to do the conducting.
Interesting that he fuel cools the pump as well...
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Post by dietcoke on Mar 29, 2016 13:26:49 GMT
There just isnt any potential in 12vdc. You'd need thousands of volts to produce an arc, and paraffin (gas) is a poor conductor
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Post by greg on Mar 29, 2016 14:57:34 GMT
It's the fumes that ignite when gas is set on fire. Not the actual liquid itself. It's too "rich".
Thank you for the detailed write up in this setup. I must now plagiarize you.
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Post by dietcoke on Mar 29, 2016 15:15:16 GMT
It's the fumes that ignite when gas is set on fire. Not the actual liquid itself. It's too "rich". Thank you for the detailed write up in this setup. I must now plagiarize you.
Fumes + Oxygen, which generally also isn't present in the tank.
In interest of full disclosure, I did end up changing the lower hose between pump and the hydramat to an 8 inch section, which let it make a loop in the tank and bend at a favorable angle instead of the little 3 inch section pictured which didn't want to bend to fit. Seemed the best solution, also made putting the bucket back in a lot easier since you can preposition the mat on the tank bottom beforehand.
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Deleted
Deleted Member
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Post by Deleted on Mar 29, 2016 17:28:47 GMT
Thanks,
Del
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Post by steadfast on Mar 29, 2016 17:52:21 GMT
So in theory, one could buy a tank like this:  This is a 12 gallon (18'' L x 12'' W x 12'' H), which will easily fit in the rear body work. It will allow you to mount it more toward the cabin area giving you a little more breathing room for rear end collisions. This tank has no foam, but if you used the hydamat this shouldn't matter? |
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Post by dietcoke on Mar 29, 2016 18:19:40 GMT
In theory you could do whatever with any sort of fuel box. With a square cell like that you'd probably use the rectangle mat hydramat but it's super duper expensive (~$750) compared to the cross shaped piece. I think even with the hydramat you want some sort of baffling - even the stock tank is baffled (if not spectacularly)
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