Oh what a flipping day. Do it all again tomorrow. NOT.

Magnethead

Admin & Resident Techie
Staff member
Joined
Oct 18, 2005
Messages
11,392
Points
783
Location
Ft Worth Tx
So hanging out with Spencer Massey this weekend, kinda sorta. Alot of people don't know he races on a fairly weekly basis when not in the nitro car. Got an update on Don Schumacher's cancer, also found out what the team organization is for next year. Not a good pic, i'm going to try and get one with him tomorrow.

After the second qualifying hit, dad came back with a flat tire. We found the leak, 2 small holes a half inch apart, like a large staple. Got one plugged, went to plug the other, and the tire cracked open between them. Useless.

So I can up to the tower for a page on the PA looking for tires. One of our friends, who pretty much carries an entire spare car's worth of parts, happened to have a set of scuffs that he did not like. They happened to be the new mold that we were going to buy anyways. The only problem was that we had to get our tires off our beadlocks and get the new tires on, during the time of a regular turnaround. Not a problem for guys like @Nitro Dude ....but we'd never worked with beadlocks before. Somebody had an electric impact gun, so we were able to zing the beadlocks off real quick and get the old tires removed. It was getting the new tires on that was a pain. You're basically taking a tire opening that is exactly 16" nominal (more like 15.875 actual) and putting it around a 16" ring. Easier said than done.

So 2 other racers, dad, and I got to work on getting the new tires seated on. We got the front side of one tire on then split into 2 teams of 2, and started on the second tire while dad and another did the backside of the first tire. They were halfway through the back and my partner and I were 3/4 way through our tire when they called our class to the lanes. So our friends got in their cars and went up, followed by the rest of the class.

Dad finished his tire, so I ran it back to our pit, on the other end of the track, got it mounted up and torqued, threw some fuel in the tank, then ran back, where dad finished up the tire I'd been working on. We put our friend's tools away and brought that tire back, got it slung on the car, dad got suited up, and we made it up as the very last car in our class with 4 pairs left in front of us.

Got up to the line, staged, and when the tree fell, other guy went nowhere. Turns out his launch control timers failed. Gives us winlight but dad lifted right after the 330 to prevent going to fast/breaking out. Got back, finished torquing the wheels, went back up for round 2. Somehow drew the same guy again (this is a buyback race- you lose, you buy back in). Second round dad gets the winlight on a pedal job, again not a full pull so still no idea what the car wants to run on the new tires. Come around for 3rd round, we draw a guy that's well known to be a hitter. Sure enough he's 007 to dad's 22 on the tree, top end both drivers were 3 off the dial pedaling, putting us on the trailer.

Guess we won't know what the car wants to run until qualifying tomorrow. On Board Data shows good progress though.

IMG_262576841647925.jpeg


20141127_165915.jpg


FB_IMG_1417190578083.jpg


20141128_161521.jpg


20141128_161418.jpg


20141128_162644.jpg
 
Great story Mag. Keep them coming. I feel like I am there as you describe the event so well. Good luck!!!

OH! And keep posting those pictures!
 
Double teched today then going home, yesterday wore us out plus the $700 set of used tires was an unexpected expense. Hopefully we can do some good. About to make qualifying hit #2.

Current conditions:

Temp: 62.44
Hum: 61.97
Baro: 29.21 and falling
Vapor pressure: 0.35
Water grains per pound of air: 54
Density altitude: 1323 feet

Since dad didn't make a full pass on the new tires, run completion shows:

R1: 4.8736 actual, 4.8025 projected, 4.78 dial
R2: 4.7930 actual, 4.7914 projected, 4.79 dial
R3: 4.7914 actual, 4.7885 projected, 4.79 dial

Q1 today: 4.7881 full pull
 
Old tires and new tires. No ET difference, huge vibration difference.

Top line is engine RPM, middle is driveshaft RPM, the bottom is accelerometer.

20141129_104203.jpg


20141129_104117.jpg
 
I put camera on the right front wheel looking back. Dad does it burnout, all normal. Stages and leaves, gets about 200 feet and big white plume of raw fuel comes out the left header that I could see and shuts down. Makes it around the curve, I haul tail back to the pits and grab the valve cover wrench thinking we broke a rocker. Dad yells that he has no throttle, look over at the CO2 bottle and the line gauge is at zero. Bottle never got opened before the run. (We run an air actuated throttle)
 
Usually dad forgets to turn the bottle off, so I did before we left last night. Warmed up and made first hit with the air stored in the lines. Not something we usually check, single days we turn it on because the line is empty. Multidays like this, the lines hold well enough to not realize it.
 
Does it tear anything up to do that?
 
We didn't pull the plugs to look but I'm sure it washed the flame out and fouled the plugs a little. But on an injected motor, you shut the fuel off instead of the ignition, so I'm sure it cleared the plugs out on shutdown.

Last qualifying run (dial for dollars what basically a purchased Q3) shook the tires hard at launch, ran a 4.805 on a predicted 4.795.
 
Photo guy came by. I'll scan it when we get home..at this rate will hopefully be tomorrow. Huge car count today and at least half the cars on the property are double teched. There are 100 paved and marked parking spots and several are double parked plus rigs out in the grass.
 
Done for the weekend and season. Won first round first entry, red lit -0.0001 red first round second entry, then broke out on the brakes second round first entry, 4.8251 on a 4.83 taking .0195 MOV, completion says 4.8171.
 
On way to dinner, just dropped trailer at house. Forgot I had a camera suction cupped to it...it made it home all 57 highway miles at 55MPH. LOL
 
:XXROFL: The top video is the camera that you left stuck on the trailer. :D
 
Back
Top Bottom