Can I change the wheels and tires from car to car to get it to compete in more than one class. Like take the wheels and tires from my manufacturers class car and put them on my unlimited car to make it a modified car. The only reason my car is in the unlimited class is because of the wheels I made.
Can I change the wheels and tires from car to car to get it to compete in more than one class. Like take the wheels and tires from my manufacturers class car and put them on my unlimited car to make it a modified car. The only reason my car is in the unlimited class is because of the wheels I made.
Thanks Ken
Ken, I hadn't really considered that possibility, but I don't see why not. As long as the car fits the rules for the class we're running at the time, it should be eligible. Of course, if the car is going to run in two classes, you'd need to pay two entry fees for it. Does that sound fair and reasonable?
Ken, I hadn't really considered that possibility, but I don't see why not. As long as the car fits the rules for the class we're running at the time, it should be eligible. Of course, if the car is going to run in two classes, you'd need to pay two entry fees for it. Does that sound fair and reasonable?
I am fine with paying two entry fees for the same car but in different classes Kurt. There are lots of cars throughout history that ran in different classes in in speed events with the same car just using different power plants. There was a guy in the 30's that had an MG streamliner that he pulled out two pistons from to run in a class with a lower CC limit.
It seems to make sense that most parts off of a stock going onto a Mod or Unlim would be no issue. Now going the other way, we may run into some problems.
Yeah, it definitely depends on the parts involved. Wheels should be no problem.
It would be easier for you if we ran the three heats for each class consecutively. But we run the first heat for Manufacturer's Class, the first heat for Modified, then the first heat for Unlimited, before moving on to the second heats. If we ran the first, second, and third heats for Manufacturer's Class, then the first, second, and third heats for Modified, etc, then you'd only have to change the parts one time. As it is, you'll have to change the parts several times, so it's helpful that the changes are simple.
Are there any other changes that will have to be made?
Yeah, it definitely depends on the parts involved. Wheels should be no problem.
It would be easier for you if we ran the three heats for each class consecutively. But we run the first heat for Manufacturer's Class, the first heat for Modified, then the first heat for Unlimited, before moving on to the second heats. If we ran the first, second, and third heats for Manufacturer's Class, then the first, second, and third heats for Modified, etc, then you'd only have to change the parts one time. As it is, you'll have to change the parts several times, so it's helpful that the changes are simple.
Are there any other changes that will have to be made?
The manufacturers class rear wheels and tires are smaller diameter than the unlimited class wheels so I will either have to make the side skirts so they float up and down or trim them so they are not as effective. I am hoping to break through the 100 KPH barrier in the unlimited car. In doing the number crunching with the 50K NSR motor running at 75% of max RPMs I should be able to just make it.
Cool, so there are no other changes that could affect eligibility in a particular class. Easy enough!
We'll want to verify before each run that the correct wheels are used for the class. I trust you to have the right wheels, but just having a second person (Bruce or myself) verifying it is a good thing for consistency's sake.
OK, so you are not 100% confident the 119.5mph run backed up by a 117.3mph run in the modified class and 158.8 mph on a higher voltage are correct.
And you are confident Rod Evans 51.9 mph is the correct record.
Perhaps I am misunderstanding something here, please correct me if I've got it wrong, but you seem to be saying the speeds posted in 2009 were 2 or 3 times higher than the actual speeds you are now able to achieve.
I have had the calculator out this morning doing some projections on the projected speeds for my cars for this year. While I was at it I took the numbers and ran them for a car with 21 mm rear tires with a 15/23 gear ratio. For a car with that setup the rear wheels would have to turn 74,454 RPM and the motor would have to spin 114,000 RPM to achieve 120 miles per hour. I have not found a normal slot car rubber of silicone tire yet that will stay on the wheel past 30K even with glue.
I have had the calculator out this morning doing some projections on the projected speeds for my cars for this year. While I was at it I took the numbers and ran them for a car with 21 mm rear tires with a 15/23 gear ratio. For a car with that setup the rear wheels would have to turn 74,454 RPM and the motor would have to spin 114,000 RPM to achieve 120 miles per hour. I have not found a normal slot car rubber of silicone tire yet that will stay on the wheel past 30K even with glue.
30K works out at about 48.3 mph.
Apparently the record at Cincy is 51.9 mph.
So I guess some have found how to make the tyres stay on the wheels at over 30k.
30K works out at about 48.3 mph.
Apparently the record at Cincy is 51.9 mph.
So I guess some have found how to make the tyres stay on the wheels at over 30k.
I am using a larger diameter wheel from Penelope Pitlane with a narrower softer tire that has less of an ability to stay on the wheel since the mass of the tire has moved further out.
BTW the record for the unlimited class is 52.954 MPH set by Tom McNay last year with the twin motor jet airplane bodied car that also had larger diameter wheels.
bring'm on.
See you guys on Friday for set up, Ken
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