Car 9999 The Season Concludes

Car 9999 The Season Concludes

Joined: October 28th, 2014, 1:06 am

November 14th, 2017, 4:25 am #1

The SCTA El Mirage 2017 season ended with a two day meet. Each team got the opportunity to make 1 run on Saturday, and two runs on Sunday. There was no wind to speak of either day. Temperatures started about 40F in the mornings and topped out in the 60s in the afternoons. Hanging dust was was a problem both days, but especially on Sunday.

Vehicles run in (roughly) points order, so the points leading bike was the first off the line, and immediately crashed. I knew the rider, we'd bought our current motor from him. He was just leaving the starting line and had been going about 30mph at the point he crashed, but that was much better than the 240mph he probably would have been doing at the finish line. He's expected to fully recover. He had been a shoe-in to be #1 overall, but not completing his final meet, dropped him out, and moved everyone else up a spot in the overall standings.

The car that was 14 or so points ahead of us had several things stacked against them. The biggest was another competitor that could deny them their 25 bonus points even if they set a record. It turned out it didn't matter, the missed a record by just a whisker.

The car that was about 13 points behind us needed a record and, they needed a big one. To jump into first place they were going to need bump their record from 191 mph, to about 205 mph. They ran a disappointing, (for them, not me) 133mph which left the door open for us.



We ran 186, on a 189 record. None of the other cars were close enough without a miracle to get near the three of us. We poured over our engine data and made a couple of tweaks, most notable we changed the fuel/air ratio to be less rich. We were by no means certain there was any magic left in our motor.

Sunday morning, all three of the teams were near the front of the line, all knowing it was the last day. Again the car that was #1 ran first, and again missed a record by just about 0.4 mph. Then the #3 car ran and pulled a blistering 212 mph rabbit out of the hat. That moved them up to first place. Then we ran, hoping to fine any size rabbit in our hat. I stepped out of the timing tower to watch and listen to the engine. I could tell right away it was a good run, the engine sounded great. But the best sound was as the car went through the lights I heard a cheer from the other timers that knew we needed a record. I ran inside and saw the computer display at 194.193mph, about 5 mph over our last record and better than expected. But was it enough? Running the points numbers, we were going to be about 1 or 2 points behind.



The engine data looked mostly good - we'd run out of gear, not power, so we changed the rear ratio to try and get a few more mph out of it. The one worrying bit of engine data was a sudden substantial drop in our boost pressure just a half second before the end of the run. We checked for leaks, didn't find any, and didn't have time to do much else.

About 1pm, round three came up. No surprise all three teams were in line. The former #1 desperately needed a record, or they would wind up third. We needed them to not get a record and us get a record at 197 mph. The new #1 team needed both of us to fail, or they needed to improve their record by as much as we improved ours. Things were tense. Seasons points races rarely come down to three cars all running third runs at the last meet.

To spoil the suspense, It didn't matter. We'd blown the turbo, and coasted through at 104 mph. Both of the other teams came close, but neither set a record, and so as far all of us concerned, the season ended anticlimactically, with no last run reversals of fortune. (The turbo now sounds like a cheep angle-grinder with a chipped disk)

It's not official yet, but we expect we'll be #2 car by about 1 or 2 points, with a total of about 1107 points, competing against about 100 cars. Still, that's our best ever finish, and we got an open wheel car running on 1.3 mile dirt track, to over 194 mph using a 750cc engine.



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Joined: February 24th, 2016, 8:06 pm

November 14th, 2017, 6:31 am #2

Congratulations on a great season! There is always next year to grab the #1 and better to start as #2 than say 5th or lower.
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Joined: October 8th, 2014, 2:05 pm

November 14th, 2017, 2:23 pm #3

The SCTA El Mirage 2017 season ended with a two day meet. Each team got the opportunity to make 1 run on Saturday, and two runs on Sunday. There was no wind to speak of either day. Temperatures started about 40F in the mornings and topped out in the 60s in the afternoons. Hanging dust was was a problem both days, but especially on Sunday.

Vehicles run in (roughly) points order, so the points leading bike was the first off the line, and immediately crashed. I knew the rider, we'd bought our current motor from him. He was just leaving the starting line and had been going about 30mph at the point he crashed, but that was much better than the 240mph he probably would have been doing at the finish line. He's expected to fully recover. He had been a shoe-in to be #1 overall, but not completing his final meet, dropped him out, and moved everyone else up a spot in the overall standings.

The car that was 14 or so points ahead of us had several things stacked against them. The biggest was another competitor that could deny them their 25 bonus points even if they set a record. It turned out it didn't matter, the missed a record by just a whisker.

The car that was about 13 points behind us needed a record and, they needed a big one. To jump into first place they were going to need bump their record from 191 mph, to about 205 mph. They ran a disappointing, (for them, not me) 133mph which left the door open for us.



We ran 186, on a 189 record. None of the other cars were close enough without a miracle to get near the three of us. We poured over our engine data and made a couple of tweaks, most notable we changed the fuel/air ratio to be less rich. We were by no means certain there was any magic left in our motor.

Sunday morning, all three of the teams were near the front of the line, all knowing it was the last day. Again the car that was #1 ran first, and again missed a record by just about 0.4 mph. Then the #3 car ran and pulled a blistering 212 mph rabbit out of the hat. That moved them up to first place. Then we ran, hoping to fine any size rabbit in our hat. I stepped out of the timing tower to watch and listen to the engine. I could tell right away it was a good run, the engine sounded great. But the best sound was as the car went through the lights I heard a cheer from the other timers that knew we needed a record. I ran inside and saw the computer display at 194.193mph, about 5 mph over our last record and better than expected. But was it enough? Running the points numbers, we were going to be about 1 or 2 points behind.



The engine data looked mostly good - we'd run out of gear, not power, so we changed the rear ratio to try and get a few more mph out of it. The one worrying bit of engine data was a sudden substantial drop in our boost pressure just a half second before the end of the run. We checked for leaks, didn't find any, and didn't have time to do much else.

About 1pm, round three came up. No surprise all three teams were in line. The former #1 desperately needed a record, or they would wind up third. We needed them to not get a record and us get a record at 197 mph. The new #1 team needed both of us to fail, or they needed to improve their record by as much as we improved ours. Things were tense. Seasons points races rarely come down to three cars all running third runs at the last meet.

To spoil the suspense, It didn't matter. We'd blown the turbo, and coasted through at 104 mph. Both of the other teams came close, but neither set a record, and so as far all of us concerned, the season ended anticlimactically, with no last run reversals of fortune. (The turbo now sounds like a cheep angle-grinder with a chipped disk)

It's not official yet, but we expect we'll be #2 car by about 1 or 2 points, with a total of about 1107 points, competing against about 100 cars. Still, that's our best ever finish, and we got an open wheel car running on 1.3 mile dirt track, to over 194 mph using a 750cc engine.


Sounds like a hard fought second place, which is something to be proud of.

Any word on what caused the first car to crash?
If it ain't broke, I'll fix it!
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Joined: October 28th, 2014, 1:06 am

November 14th, 2017, 5:23 pm #4

The first vehicle was a motorcycle, (bike), and it probably went down because it had 500 horsepower, and the back end tried to pass up the front end. The rider was very experienced, I sure he's made hundreds of runs on very fast, very powerful bikes. But in order to set a record, you have to go faster than you or anyone else has ever gone in that class, on that track. Which means each run you have to push harder. In this case, he couldn't keep the bike straight during the initial start. I'm grateful it happened right at the beginning instead of anytime later. I've seen what happens when a bike goes down at 200mph.
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Joined: September 29th, 2016, 1:55 am

November 14th, 2017, 9:44 pm #5

The SCTA El Mirage 2017 season ended with a two day meet. Each team got the opportunity to make 1 run on Saturday, and two runs on Sunday. There was no wind to speak of either day. Temperatures started about 40F in the mornings and topped out in the 60s in the afternoons. Hanging dust was was a problem both days, but especially on Sunday.

Vehicles run in (roughly) points order, so the points leading bike was the first off the line, and immediately crashed. I knew the rider, we'd bought our current motor from him. He was just leaving the starting line and had been going about 30mph at the point he crashed, but that was much better than the 240mph he probably would have been doing at the finish line. He's expected to fully recover. He had been a shoe-in to be #1 overall, but not completing his final meet, dropped him out, and moved everyone else up a spot in the overall standings.

The car that was 14 or so points ahead of us had several things stacked against them. The biggest was another competitor that could deny them their 25 bonus points even if they set a record. It turned out it didn't matter, the missed a record by just a whisker.

The car that was about 13 points behind us needed a record and, they needed a big one. To jump into first place they were going to need bump their record from 191 mph, to about 205 mph. They ran a disappointing, (for them, not me) 133mph which left the door open for us.



We ran 186, on a 189 record. None of the other cars were close enough without a miracle to get near the three of us. We poured over our engine data and made a couple of tweaks, most notable we changed the fuel/air ratio to be less rich. We were by no means certain there was any magic left in our motor.

Sunday morning, all three of the teams were near the front of the line, all knowing it was the last day. Again the car that was #1 ran first, and again missed a record by just about 0.4 mph. Then the #3 car ran and pulled a blistering 212 mph rabbit out of the hat. That moved them up to first place. Then we ran, hoping to fine any size rabbit in our hat. I stepped out of the timing tower to watch and listen to the engine. I could tell right away it was a good run, the engine sounded great. But the best sound was as the car went through the lights I heard a cheer from the other timers that knew we needed a record. I ran inside and saw the computer display at 194.193mph, about 5 mph over our last record and better than expected. But was it enough? Running the points numbers, we were going to be about 1 or 2 points behind.



The engine data looked mostly good - we'd run out of gear, not power, so we changed the rear ratio to try and get a few more mph out of it. The one worrying bit of engine data was a sudden substantial drop in our boost pressure just a half second before the end of the run. We checked for leaks, didn't find any, and didn't have time to do much else.

About 1pm, round three came up. No surprise all three teams were in line. The former #1 desperately needed a record, or they would wind up third. We needed them to not get a record and us get a record at 197 mph. The new #1 team needed both of us to fail, or they needed to improve their record by as much as we improved ours. Things were tense. Seasons points races rarely come down to three cars all running third runs at the last meet.

To spoil the suspense, It didn't matter. We'd blown the turbo, and coasted through at 104 mph. Both of the other teams came close, but neither set a record, and so as far all of us concerned, the season ended anticlimactically, with no last run reversals of fortune. (The turbo now sounds like a cheep angle-grinder with a chipped disk)

It's not official yet, but we expect we'll be #2 car by about 1 or 2 points, with a total of about 1107 points, competing against about 100 cars. Still, that's our best ever finish, and we got an open wheel car running on 1.3 mile dirt track, to over 194 mph using a 750cc engine.


Yep it does sound like that. Quite annoying. Ours wasn't on a racermobile, but our PT Cruiser, and while it was still under warranty, the mechanics at our local Sanford & Son dealership couldn't seem to figure out what was wrong with it, or fix it properly. It limped along for a few more years, then we got fed up and sold it.
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Joined: January 1st, 1970, 12:00 am

November 15th, 2017, 10:20 am #6

The SCTA El Mirage 2017 season ended with a two day meet. Each team got the opportunity to make 1 run on Saturday, and two runs on Sunday. There was no wind to speak of either day. Temperatures started about 40F in the mornings and topped out in the 60s in the afternoons. Hanging dust was was a problem both days, but especially on Sunday.

Vehicles run in (roughly) points order, so the points leading bike was the first off the line, and immediately crashed. I knew the rider, we'd bought our current motor from him. He was just leaving the starting line and had been going about 30mph at the point he crashed, but that was much better than the 240mph he probably would have been doing at the finish line. He's expected to fully recover. He had been a shoe-in to be #1 overall, but not completing his final meet, dropped him out, and moved everyone else up a spot in the overall standings.

The car that was 14 or so points ahead of us had several things stacked against them. The biggest was another competitor that could deny them their 25 bonus points even if they set a record. It turned out it didn't matter, the missed a record by just a whisker.

The car that was about 13 points behind us needed a record and, they needed a big one. To jump into first place they were going to need bump their record from 191 mph, to about 205 mph. They ran a disappointing, (for them, not me) 133mph which left the door open for us.



We ran 186, on a 189 record. None of the other cars were close enough without a miracle to get near the three of us. We poured over our engine data and made a couple of tweaks, most notable we changed the fuel/air ratio to be less rich. We were by no means certain there was any magic left in our motor.

Sunday morning, all three of the teams were near the front of the line, all knowing it was the last day. Again the car that was #1 ran first, and again missed a record by just about 0.4 mph. Then the #3 car ran and pulled a blistering 212 mph rabbit out of the hat. That moved them up to first place. Then we ran, hoping to fine any size rabbit in our hat. I stepped out of the timing tower to watch and listen to the engine. I could tell right away it was a good run, the engine sounded great. But the best sound was as the car went through the lights I heard a cheer from the other timers that knew we needed a record. I ran inside and saw the computer display at 194.193mph, about 5 mph over our last record and better than expected. But was it enough? Running the points numbers, we were going to be about 1 or 2 points behind.



The engine data looked mostly good - we'd run out of gear, not power, so we changed the rear ratio to try and get a few more mph out of it. The one worrying bit of engine data was a sudden substantial drop in our boost pressure just a half second before the end of the run. We checked for leaks, didn't find any, and didn't have time to do much else.

About 1pm, round three came up. No surprise all three teams were in line. The former #1 desperately needed a record, or they would wind up third. We needed them to not get a record and us get a record at 197 mph. The new #1 team needed both of us to fail, or they needed to improve their record by as much as we improved ours. Things were tense. Seasons points races rarely come down to three cars all running third runs at the last meet.

To spoil the suspense, It didn't matter. We'd blown the turbo, and coasted through at 104 mph. Both of the other teams came close, but neither set a record, and so as far all of us concerned, the season ended anticlimactically, with no last run reversals of fortune. (The turbo now sounds like a cheep angle-grinder with a chipped disk)

It's not official yet, but we expect we'll be #2 car by about 1 or 2 points, with a total of about 1107 points, competing against about 100 cars. Still, that's our best ever finish, and we got an open wheel car running on 1.3 mile dirt track, to over 194 mph using a 750cc engine.


Sorry to hear about the problems, but it also sounds like you're getting things dialed in.

I hate to say it, but you might want to check at least the upper and of the cylinders- depending on what let go when the turbo ate itself, some debris could have been ingested. Cylinder walls could be scored, valve seats could be dinged, rings could be damaged, etc.

And I'm sure you've thought about it, so what about a slightly bigger turbo next time?

Doc.
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Joined: October 28th, 2014, 1:06 am

November 15th, 2017, 7:11 pm #7

We'll check the motor, but all of that is somewhat besides the point. First, with the plumbing and inter-cooler, nothing much larger than dust could probably get through. But more importantly, we're probably done with this motor. We're planning to drop engine classes again, down to 500cc. Who knows, maybe we can get 200+ horsepower out of a half liter. Does anyone reading this have a racing 500cc motor available? We've got some leads already, but it doesn't hurt to ask. Just for comparison, 500cc is just slightly larger than a 16oz Mountain Dew.

The turbo we were using was sized for our 1500cc motor from a few years ago. It lagged a lot with the little 750cc, and that was something we'd been struggling with from the beginning. We pretty much knew we'd have to get a smaller one with a 500cc motor anyway. It would have been nice if we could have gotten one more run out of it, but the old one was probably at its last meet anyway.

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