Spin Question

[Dynoroom]

I'm glad to hear you need to pee at 3 am every moring too! Thought I was the only one....

[fredvance]

1am, 3am 5am, if you only get up once you are lucky.

[Rex Schimmer]

 Ever notice how some of these threads can swing off on a tangent that has nothing to do with the subject. I really don't care how many times Fred gets up to pee at night!! BTW it is twice for me.

John your car is so close to really setting some records just a little more tweaking and you will be in impound for sure!! I think that the reason that your car felt better on the 219 run with the solid struts in the rear was because they canceled out the affect of that broke back panard rod you have. Going to a watt link is a good idea.

I still think that you need to block off the grill and make your air inlet about 2 inches by 4 and you will pick up an easy 5-10 mph. Love your car.



Rex

[SPARKY]

But it does give me something to think about at 3 o'clock in the morning between pee's.
John


Look at how many of my posts are between 2--4 am ---lol

[Peter Jack]

I'm always surprised at the number of people from the North American time zones who are on in the middle of the night when I run out of sleep and turn on the computer.

Pete

[panic]

Unfortunate that a simple addition to improve direction stability is just not practical in any chassis I can think of: a simple inertia gyro, perhaps built into a vertical wing (tail). Wheel OD can be larger than the tail height if the lower portion is inside the bodywork. Total mass is low, all weight at the rim, strong axle and bearings.
Pre-spin it up to very high RPM with air pressure before starting, might continue to spin for several minutes.
Resists yaw and roll very strongly, completely passive in accel & decel, bump & rebound, and pitch. Maximum yaw control ~ how far back you can place it (ahead of the nose works equally well, but the CP of the gyro should be reaward). Max roll ~ how high above the CG.

[jl222]

Unfortunate that a simple addition to improve direction stability is just not practical in any chassis I can think of: a simple inertia gyro, perhaps built into a vertical wing (tail). Wheel OD can be larger than the tail height if the lower portion is inside the bodywork. Total mass is low, all weight at the rim, strong axle and bearings.
Pre-spin it up to very high RPM with air pressure before starting, might continue to spin for several minutes.
Resists yaw and roll very strongly, completely passive in accel & decel, bump & rebound, and pitch. Maximum yaw control ~ how far back you can place it (ahead of the nose works equally well, but the CP of the gyro should be reaward). Max roll ~ how high above the CG.

  I'll take two smaller ones

          JL222

[jww36]

Rex;
I really appreciate all of yours and other racers input on this question and on my Build Diaries "1934 Ford Gas Roadster". As a LSR newcomer, I learned an important lesson at Speedweek. You can build a nice car with all the power in the world, but if you can't keep your foot hard on it, you're not going to be competitive. I knew my car was light, but I was hoping the body rake would add some aero down force. But that's one of the problems with aerodynamics. Unless you have access to a wind tunnel, you're kinda guessing as to what the air is doing around and over the car. We're going to run November El Mirage, and we're going to put some yarn tuffs on the car and video record their movement. Like I've said here before, I'm not sure what it will tell us, but it sure might make interesting conversation.
John

[DallasV]

But that's one of the problems with aerodynamics. Unless you have access to a wind tunnel, you're kinda guessing as to what the air is doing around and over the car.

This is about a roadster right? when I hear roadster and wind tunnel, I think of Mississippi state fair and formal wear.