Engineering is awesome: Doing Lat G vs Tire vs Camber test for credit, need help.

[fsmtnbiker]

Chris, any chance you would be able to drive my car march 13th or 19th?

I don't have anything on either date as of yet.

[Bimmerman325i]

Sounds like measurements lab. That shit was useless.

[blefevre]

Carlos something-or-another. He had no idea what he was doing and got wrapped into teaching at the last minute. Our TA did everything.

[Bimmerman325i]

Man we had to do three factors with three levels each. This is still a sweet way to do senior lab!

Who'd you have? Carmen's OK with us doing either 2 or 3 factor with 2-3 levels each.

[blefevre]

Two factor. Our response variable is the peak lateral G per lap, and our factors are compression setting (soft/mid/hard) and tire width (245/255)

Man we had to do three factors with three levels each. This is still a sweet way to do senior lab!

[Bimmerman325i]

Chris, any chance you would be able to drive my car march 13th or 19th?

[Bimmerman325i]

Doesn't the expeirment need to be a 3-factor problem? Or do you only have to do two?

Two factor. Our response variable is the peak lateral G per lap, and our factors are compression setting (soft/mid/hard) and tire width (245/255)

[blefevre]

Doesn't the expeirment need to be a 3-factor problem? Or do you only have to do two?

[Bimmerman325i]

Compression won't make much difference in overall grip.. Actually it will probably be within the noise of the data acquired. Tire width may make a big enough difference to measure... But you need tires that are either all new or identically heat cycled and worn to have a useable data set.

That's our thought as well. We have a new set of 255 and 245 star specs though, neither of which have seen any road miles yet.

[fsmtnbiker]

Compression won't make much difference in overall grip.. Actually it will probably be within the noise of the data acquired. Tire width may make a big enough difference to measure... But you need tires that are either all new or identically heat cycled and worn to have a useable data set.

[Bimmerman325i]

So I apparently can't tell February from March on a calendar. March 6th is a Motorcycle day, March 5th and 13th are winter pricing Car days. Unsure which day our group is going to the track, probably the 13th.

Sorry all.

Sounds like a cool project.
You're going to have to readjust your front toe after changing the camber though, keep that in mind.

Thanks! We're no longer doing camber vs tire vs lat G though-- we're doing compression vs tire width vs lat G.

[Brew]

Sounds like a cool project.
You're going to have to readjust your front toe after changing the camber though, keep that in mind.

[blefevre]

I highly doubt I can drive that day, but I will probably be there!

[Bimmerman325i]

And again, another update: tire width vs compression, on brand new sets of 245 and 255/40/17 star specs. Two tire widths vs three compression settings at 5ish laps per combo. It's going to be a wicked day.

Still on for March 6th!

[blefevre]

I will be there and put around with the Ti or E30 if one of the cars is ready. I need to find a helmet too. I dont think hpr has rentals. If there are 10 people then I might just watch too.