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The first sight has some interesting cars.

Thanks.

TedV

Thanks for the lead.

I am thinking about a car with a longitudinal engine and transmission. Something like a FF type chassis but big enough for 2 people. The problem with a transverse...

For some years, I have been thinking about what a modern day Lotus Super 7 might look like.

I am thinking about a rear engine car but with body work reminiscent of the original Super 7. ...

I highly recommend that you consider FV as your first choice for starting in racing.

And I have 2 reasons I think this is the best option for learning. 1. The cars are relatively easy to drive,...

The car has been tested a couple times. This year might be the year it gets to the track in earnest.

In addition to this car, I have been working on a restoration of the car that George Fizel won...

Mat,

Here is a rendering of that frame.

https://www.apexspeed.com/forums/images/attach/pdf.gif

The location of the steering box is not much of an issue in the Zink/Citation system. What is important is the steering geometry as the suspension moves up and down. The Citation system allows for...

Below are 2 pictures of the Citation Steering system that I designed. This is an evolution of what first appeared on the Zink Z12. The car is the last FV that I designed and built. The roll bar...

In a hard frontal impact, your knees will move upward and the steering links will impact your shins.

On the original 94 Citation the anti front sway bar was in a similar location but higher. ...

That is not anything the Ed Zink , nor I , came up with. Given the experiences of some of my drivers, I would not recommend that approach to a steering system, for safety reasons.

The 84 Citation FV had the steering box mounted on the bottom beam and the pitman arm going forward. I did experiment with a setup that mounted the steering box on a bracket forward of the axle...

I designed the 84 Citation FV to fit me. I was 6'2" and 225 when I did that car.

I also produced the Zink Z12 and that car was designed so that the drivers helmet fit just under the top of the...

I used Don Allen for many years. I did have some that showed signs of the interior foam flaking.

Some time in the coming year, I am going to have Fuel Safe build a new tank for a Z12 that I am...

It may be the manufacturers I was using.

I have experienced the foam in the cells deteriorating and flaking. Again this may not be an issue with the fuel cells made today but it was when I was...

One check that I did not see mentioned above is the fuel cell. Fuel cells time out and they are expensive to replace.

Bottom line check the manufactured date on the fuel cell and see that it is...

If you are going to stay with the 8 and 10 inch rims, consult with the tire manufacturer as to what rim width are appropriate for the tires you plan to use. A tire failure because the tire would not...

The wheel recommendations came from Bruce Foss of Hoosier Tires. He gave me the advise when we were building our first F1000.

You have the same problem that I ran into with the first Citation...

What width wheels do you have.

While F1000 is allowed 8 in. front and 10 in rear wheels, they run 7 and 9 inch wheels because that is the maximum rim width for the tires.

The 1 in wider...

This is a rendering of a chassis hoist that I carried for several years . It brakes down into 3 pieces.

All the round tubing is exhaust tubing, .050 wall thickness.

I used a both a come-along...

Years ago I ran into a similar problem with needing a metalastic bushings. I found that I could substitute leaf spring bushing. It did take a sleeve or 2 to make the substitution but it worked...

I should have been more precise in my previous post. In short, rear toe out is not a bad thing and can be positive for good handling, if done correctly.

You are correct that there is a difference...

1/16 inch on a 13 inch diameter wheel.

I have setup cars for ovals and road courses with the rear toed out. About 1/4 degree out is a good starting point. The big advantage of rear toe out is that is reduces or even eliminates power on...

I have used this shop for over 50 years:

Metal Finishing Co. Inc., 3901 E 26th St, Indianapolis, IN 46218 317 546 9004

The smallest trailer I had was built by Autodynamics for their FV. This was 1968 when I bought this trailer. With a FV, the trailer was such that the 4 wheels of the FV were at the 4 corners of the...

Flipping the diff is relatively easy to do. You do have to make sure the back lash is correct, which is controlled by the shims behind the bearings that locate the differential. Chances the pinion...

A air cooled VW engine requires that the transmission be bolted to engine upside down from what most other formula cars use. The wheel rotation is taken care of by reversing the ring gear inside...

I will double down on Phill's question. What is the problem you are trying to solve.

I have built cars that used the Hewland Mk 9 for both the air cooled VW engines and a bunch of 4 cylinder...

This is the same for inboard suspension as well. The same physics apply.

That is a 1000 spring on each side. That gives you a wheel rate about 250 pounds per inch.

You will need to bump the rear springs so the wheel rate is some what similar to what you have at the...

The most important variable in setting up you car is getting the spring rates right for you application. In tuning a car, getting the spring rates optimized is step 1. And as you change spring...

On cars with upper and lower training links locating the rear upright in the fore aft position, caster can be the way you bump steer the rear upright. Changing caster will change the toe steer of...

Think of the mass of the car as a big brick, sitting on an ice block. And it is supported by a pole from the contact patch to the some point on the brick that is below the center of the mass. As...

This description I am going to give is how I think about what happens when a car corners. This is not a scientific explanation. And it is the product of an old man.

As the car corners, the tire...

What do you mean by weight transfer control? And are you talking about pitch or roll weight transfer?

Maybe there is the problem. I am saying a car is jacking up when the ride height as measured...

There is a second reason that the front end of a FV jacks and it has to do with the motion ratios of the front torsion bars. If you have a rising rate on the outside and a declining rate on the...

The physical evidence I had was the the test we did with the front shocks that led to my conclusion that droop limiting was a valuable thing to do. We started with sufficient droop travel that the...

Brian

I guess that in my old age, my experience will have to bow down you you understanding of FV suspension geometry. By the way, how many SCCA national championships do you have on your record?...

At the rear of a FV, I believe that every car has some form of droop limiting. This is necessary because the geometry of the FV rear has a missive jacking tendency as the car is loaded laterally. As...

You got the disease bad.

My last motor cycle was a Ducati Diana MK 2. Now that will tell you how old I am.

Too Cool by Double!

The car looks like it was built around 1970 or later. It appears to have the lower front bulkhead of the later cars.

You ca make a major improvement in the handling of the car, if you can redo...

Here is a rendering of a design I did to add a rear sway bar to my zero roll suspension system. The sway bar would be cockpit adjustable. I have built one car with this Zero roll system but it...

I looks like the ratio rises in bump a fair amount. And declines in droop.

I have not done much work with FV and rising rate motion ratios but in FC I have done a lot of work.

Interesting setup.

Brad, have you played or plotted with the motion ratios of the bell cranks?

I have tested rear anti roll bars with very good success added to my zero roll rear suspension...

The rivet holes are countersunk on the bottom of belly pan so I have a smooth surface on the bottom of the car. The solid rivets have the dome heads inside the cockpit which makes fo ra nice look. ...

50 ml is plenty. I have always used 9460 and the cure time has not been an issue. Given that it is winter now, just turn the heat down and you will have plenty of time to get the solid rivets...

You might consider another class than FV.

FV has a couple rules that make it difficult for a driver over 6 feet tall and 200 pounds to fit in. First there is a maximum wheel base rule. That...

The roll bar provides maximum protection for a driver sitting with his shoulders comfortably against the fire wall. Moving the driver forward is not an option. Moving forward will compromise...

If you are still perplexed by the brake setup, I can help. And I sent you a private message that you might take a look at.

I am the guy who designed the car you have and may have made the parts...