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Today was my first autocross for FFR 3035K. Here’s how it went.

I woke up early this morning thinking that I would go over the car one more time before driving it down to the track. I also wanted to check the tire pressures and set the rear ride height up a little. The front is at 4.5", but the rear has settled to 3.9". I wasn't going to mess with it because I have a coil-over kit on order, but since FFR is taking FOREVER to send my kit, I thought I better set it up. Anyway, laziness took over and I didn’t get anything done, except check the fluids and tires. I just hate messing with the stock springs, what a pain! I’ll wait until the kit gets here before messing with it.

Our house is about 50 miles from the track so I sweet-talked my wife into loading some tools up in her NSX to meet me there. A couple of friends also planned on meeting me there. I guess everyone wanted to see me spin the car! I had to be at the track before noon and I still needed gas, but a guy from Corpus Christi was in town visiting his family and he really wanted to see an FFR roadster up close. I met him through this forum because he wants to build one soon. So I drove like heck to meet this guy before the race and met his family. They all loved the car and I think he’ll be building one soon. Real nice people. So now I’m running late and then I remember that I had forgotten my helmet! Dang it! So I called my wife from my cell phone and begged her to go back and get the helmet. Thank goodness I have such a great wife. By the way, using a cell phone sure is interesting in these cars!

The drive down to the track was cold. I think is was low 50’s, so I bundled up pretty good. After getting some gas and getting the track 5 minutes late, I was ready to go. The SCCA website suggested that our cars should run in ASP. That’s a pretty tough class and I figured to get spanked bad. But only two people showed for that class, so I was sure to finish in the top two! They had 225 people in the morning group, but less than 100 in the afternoon group because of the Super Bowl game.

I signed up and asked what class they were putting me in. They were thinking I could run in SS (Super Stock), which sounds right because that’s the Z06 Vette’s, Viper’s, NSX’s, etc. But a couple of Vette guys said, “He can’t run with us! He’ll kill us!” I said, “Trust me, this car was just finished a few weeks ago, I’m running street tires and I haven’t autocrossed in 2 years. So don’t worry about me!” The officials finally said to put me in ASP (“A” Street Prepared).

I decided to use Gordon’s recommended tire pressures on my first run. I have 17” PS wheels with 245/45-17 and 285/40-17 Yokohama A520’s. They are not the most sticky tire I could buy, but they will work great on the street and fine for the track every now and then. (So I thought… more later on tires.) I had 23 psi up front and 28 psi in the rears. Then some “know-it-all”, future National Champion driving autocross expert came over and talked me into pumping up the air to 30 psi all around. What a mistake! My car is basically stock, with a FR 1”15 rack, and a E303 cam. My first run was a 69 second run, which was a good 5-6 seconds behind the fastest C5-Vettes. The car was really loose. I had a lot of push and the rear end would step out with the smallest amount of throttle. The second run, I was planning on letting some air out, but forgot to because I was too bust talking to everyone who came over to ask questions about the car. I run another 69 seconds, but that was because I took out 3 cones in a late braking experience. They add 2 seconds per cone, so it would have been much better. Again, the car was really fast, but the tires were not working. After getting back to the pits we had to pry a cone out from under the car. That was funny!

The last run was the best. I ran 25 psi up front and 28 psi in the rear. The car felt solid and was very easy to turn in. The rear end was more manageable too. I need to bleed the brakes, they still suck! Anyway, I ran a solid 66 second lap without touching a cone. It felt good and wish we could have had another run, but maybe next time! As a comparison, the fastest Viper ran a 69 second lap, but the fastest Z06 was a 61 second lap. Of course those guys are running Hoosier autocross slicks or Yokohama A032 race tires. And they have traction control, ABS, stability control, and sway bars!

I finished second in class. Or you could say I finished last in class! The other ASP car was a twin turbo RX7 that only weighted 2,500 pounds and had every imaginable trick part you could think of. Plus big fat slicks! His best time was a 63 second lap. I’ll get him next time!


If you live near Houston, visit www.houscca.com to see the autocross schedule. We’ll go back and you should join us!

- Bill
 

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hehe, i told you they would recommend high pressures. so sort of hazing thing maybe?


the car is too light for high, or even regular tire pressures.

i have been successful against the current BSP national champion in his championship winning car. basically, the fastest BSP car in the country by a decisive margin. the FFR can run with the big boys, but only with IRS, and a good sway bar setup, and a couple hundred runs of seat time


-james
 

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Bill, great story! I suppose in a fairytale, you would have spanked the Mazda. The reality is that you were in street trim, he was in race trim.... no contest!

That 245/285 Yoko A520 combo is EXACTLY what I bought. For just driving normally on the street, are the tires noisy and prone to tramlining or are they a nice tire?

Congratulations on making it back into autocrossing without breaking anything
 

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Bill thanks for coming by & showing off your snake -- Awesome!! I was afraid when I talked to you on the phone you were strerching yourself too thin. I hope we didn't cost you too many seconds. Things didn't work out like I had thought, my wife and daughter were sold but, you are going to have to install photon torpedos and a plasma blaster to impress my grandson. What can you expect from a kid whos first word was "plane". I don't know if you noticed as you were leaving, but literally everything in that neighborhood stopped dead untill you were out of sight.

I'm over my head here, but I remember reading in the past that some folks had to pull the calipers, block the pads. and tilt them to get the last few air bubbles out of the brake system when sorting out a fresh build.

Thanks again from the Covey clan :D
 

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Discussion Starter · #5 ·
<BLOCKQUOTE>quote:</font><HR>Originally posted by 750hp:
That 245/285 Yoko A520 combo is EXACTLY what I bought. For just driving normally on the street, are the tires noisy and prone to tramlining or are they a nice tire?
<HR></BLOCKQUOTE>

Well, I like Yokohama tires a lot. As an NSX owner, I grew to love the A022 tires made for the NSX. They are a street version of a slick! My wife worked for Yokohama when we met, so I got a lot of good raining too. Anyway, to answer your question, the Yokohama 520's are a great tire. Some people complain that the tread blocks are so big that they are noisey. Maybe after 20,000 mile and some cupping, but I have never comlained. And with a Cobra, who can hear tires? You made a good choice, good luck!

- Bill
 

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Discussion Starter · #6 ·
<BLOCKQUOTE>quote:</font><HR>Originally posted by Purple Moon:
Bill thanks for coming by & showing off your snake -- Awesome!! I was afraid when I talked to you on the phone you were strerching yourself too thin. I hope we didn't cost you too many seconds. <HR></BLOCKQUOTE>

No problem, I had plenty of time! :D

The next time you get to town you need to come by and see the Daytona's. They are really cool too.

- Bill
 

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According to SCCA Fastrack news in April of 2000 (I think) all replicas run in the prepared class to which to replicated car should be in. AP in our case. If you can get them to let you run SS or BSP then more power to you. No one will say anything until you start to beat them. Cheers Richard. PS the only guy on DOTs to beat me at Run and Gun was Dave Borden. We both beat half the guys on slicks. I still have the stock FFR springs (450 lbs all around) but may change them later. Like James said Sway bars for IRS. The live axle works well also, but if you are going to get serious get the IRS. OH YEA you have that in the coupe. Cheers Richard.
 

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i think a well driven and setup FFR on slicks could trophy at nationals. AP is a class that depends on who shows up. someone brought a GT3 porsche one year. :p

the car that i was chasing last year in OSP is a going to nationals this year in D-MOD (now slick shod).

live axle can be OK, and fun, but the IRS is really a lot faster. i think sway bars on the live axle might be a help. my car used to lift a front tire.

the front ride height i kep about 3.25 inches, and the rear 4.25 at least. when i had the live axle, anything below 4 inches created bind in the rear 4 link and some awful handling.

-james

[ February 04, 2002: Message edited by: Ophitoxaemia ]
 

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James-

Would adjustable rear upper control arms help the bind problem when lowering the ride height on the solid axle.

William
 

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william, they might help and they might hurt. the best setup ive seen so far is the stock arms with rubber bushings.

the problem is when the arm twists due to the body deflection. the soft rubber bushings allow the suspension to twist, stiffer bushings resist the flex and add rear roll stiffness (and very non-linearly to boot).

adjustable arms will change the angle of the twist on the upper arms bit, but if there are stiffer bushings, then i think the next result will be worse.

you can take the springs out and measure the amount of resistance at various degrees of deflection. its a lot of work.

has anyone tried stock arms and a panhard? i think my car handled the best with the stock arms, or maybe with the MM lowers and stock uppers. the lisman joints in the diff ears were a step back all in all i feel now.

stiffer rear springs might help (will require stiffer front springs) as the torque will compress the rear suspension less and give you a little more travel before the binding starts.

ultimately, i dont know. i gave up on the 4 link after struggling with it for over a year. much happier with the IRS.

-james
 

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James-

Thanks for the data. I wanted to go with the IRS, but felt it would never stand up to the hp/torque of my intended big block.

However, today I found a company that will make a custom IRS using a 9" Ford center section, Wilwood 12" vented brakes with 4-piston calipers, and Aldan Eagle dual coil-overs.

Their website says it can handle uo to 750 HP. Haven't called them yet (afraid of what they will quote).

The company is called Concours West Industries (CWI) Inc., in Castle Rock, WA.

Here is their website
http://www.cwiinc.com/
 
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