The FSAE TTC is ready for everybody to register! Here's how it will work:

1) Fill out the registration form, on which you will vote for the four tires you'd like to see tested the most.

2) Rename the registration form and email it to me.

3) Send payment to Doug Milliken.

The registration form and payment instructions are on the FSAE TTC Webpage:
http://www.millikenresearch.com/fsaettc.html

Please read the entire page as it contains answers to all your likely questions.

I'd like to thank Edward Kasprzak, Dr. Bob Woods, and Doug Milliken for their work in planning and organizing this project.

Now, let's get it started!

Denny,
Good job. This surely is exciting. This will make for a much more advanced generation of race engineers thats for sure.

Thanks,

"3. Depending on workload, I hope that we will be able to process the tire data into our nondimensional coefficient form and make it available to the FSAE TTC members. This would include a small (Matlab?) program to expand the coefficients back into data for plotting or for use in other analysis. See Race Car Vehicle Dynamics (and Race Car Vehicle Dynamics: Problems, Answers and Experiments) Chapter 14 for more details. "

Will this be anything like the format the Goodyear data was in?

hey denny,
just wondering for all the international teams out there (especially for the SE Asian countries) who cannot afford the tyre testing fees, do they have any other means in getting the data, maybe something like a small amount of fee for each type of data?

quote:

Longitudinal Force tests cannot be run on 10" rims due to limitations of the Calspan test machine.

Where does this leave teams running 10" wheels/tires?

To answer the questions so far:

Brian:
Yes, I believe this would be similar to the Goodyear data of forces vs. slip angles / slip ratios.

RiNaZ:
We have to keep the contribution level at $500, and there won't be any discounts because we're all FSAE teams raising money the hard way.

RacingGrandpa:
This is an unfortunate limitation of the test equipment, but there's nothing we can do about it. The lateral force data by itself will be invaluable, and is probably more important than the longitudinal data. We will still get lateral force vs. slip angle data at multiple cambers and pressures (depending on where they are in the Tier structure). I don't know how well you will be able to extrapolate longitudinal performance of the 10's from the data we get from 13's, but that might be an option as well.

As another comment, only teams who submit their payment and registration forms by April 30th will be able to "vote" on their favorite four tires. So, hurry up and send your money! So far, only the University of Washington has registered.

Denny,

I am very interested! However I am running R17 Hoosier DOT tires on my car. That's a common tire in FSAE right?

Just kidding, very cool idea though. So you will test only the most popular tire?

Alex

Hey Alex! How's the M3 looking these days? Do you want those Hoosiers in 17" or 18" rim sizes?

We're going to test the most popular tire sizes that we can afford. So, if more teams send money, we can test more tires. I expect that 4-5 different constructions will be tested.

The M3 is good. Getting ready for my first club race in May, I'm very excited. 17" for now.

Anyways I don't want to hijack this thread so I'll write you an email.

It's really great that you are organizing this, access to tire data in invaluable!

Georgia Tech will be registering soon. Since I can't pay by credit card, it will take me a while to get cash out of the finance office.

Am I reading correctly that I can't back my PayPal account with a credit card, or Doug Milliken will be charged a fee?

Yes, that's correct. If you back your paypal account with a checking account, there won't be any fees involved.

If someone were to try to pay through paypal with a credit card, then paypal takes a fee (~3%) out of the transaction, and Doug Milliken receives less than $500 from your team. And, we don't want to have to deal with that.

I have an update:
Unfortunately, PayPal will only allow $500/month of incoming funds on a "free" account, so Doug Milliken will no longer be able to receive paypal payments from teams.

Please see the payment page for options 2 and 3, electronic transfer and mailing a check.

Sorry for the inconvenience.

Denny-

On the registration form when it asks us to select our tire choices do we get 3 or 4 choices (is the other included as a 4th?). Also is there any weighting to the choices, or are they all equally valued?

I guess I should ask if the same tire can be choosen more than once.

Che',
You get four choices, they were filled out with "default" values to show how you would select an "Other" tire such as an Avon.

The tire selection will be equally weighted. We haven't discussed it in detail, but I believe will be a simple rank of votes. The number of tires we can test is also up in the air until more teams send money.

not to nit pick too much but if we get 4 votes, can they all go to one tire (because we really want 10"s tested), or 2 votes each to 2 tires??

The 10" thing is a limitation on the wheel size that the machine can hold if I understand things correctly so I dont think 4 E6 votes will help

I'll have to check on the multiple-votes per tire thing. I'll get back to you in a day or two.

The only limitation on the 10's is that we can't get longitudinal data. They can still be tested for lateral and vertical data.

something is better than nothing i guess...

OK, more updates:

-Multiple votes per tire is OK, so go for it. If any of the registered teams would like to re-do their votes based on this clarification, send me another spreadsheet.

-We've received 7 registration forms as of this morning! The details of the voting are on my website, in HTML and XLS formats.

-Remember to send your payment before the April 30th deadline if you'd like your tire votes to count. The registration form doesn't mean anything if you haven't paid up

-For those who really want to see 10's tested, the rank is:
1) Hoosier 20x6-13
2) Hoosier 20x7-13
3) Goodyear 20x6.5-13
4-5 Tie, Hoosier 18x6-10, Goodyear 18x6.5-10

Operators are standing by, so send money now!

-Denny

We're up to 8 teams, but that's only about 1/4 of what we need to buy this testing time. Remember, the deadline for submitting payment if you want your votes to count is April 30th.

I know most teams don't have much money after competition is over, so please encourage your team captains to register now!