I'm not talking quick transitions. The stiffer the valving the slower the car transitions to it's steady state cornering set. I think that both of our cars have way to much body roll for optimum handling so shock changes aren't going to be as critical but if your car is tight on corner entry then softer shock settings would be in order.

 

anybody getting any track days or autocross in before the winter.

I just missed Mosport but will do Lime Rock in November.

Maybe New Hampshire in Oct.

 

Absolutely, I've got eight more weeks straight, into November. Mostly autocrosses, but there will be two trips to tracks up here in Michigan-Waterford Hills and Grattan.

 

I'm going to the track tomorrow but not with the Vette. I was just going to update you guys. I discovered the reason why I observed roughly neutral to slight oversteer on the track but understeer on the skid pad. It was the pass. side trailing arm bushing. It's totally shot. That would also explain the skiddery feeling on corner entry and throttle transisions. So I'm in the process of changing it but the bolt is rusted enough that I have to cut it out. What a pain. The other side was easy to do a few years ago. Anyway, more data for everyone as soon as I have it. I plan to run a couple of sessions next week with the Vette. Around here we can run all winter.

 

69, auto xr I live near lansing, would be interested in attending one of these events when you are going

 

This Sunday in Hamtramck (Detroit), next Sunday in Ypsilanti. This Sunday is a Corvette Club of MI event.

PM me if you want details.

 

Drive it like you stole it Streetable C3's will always have alot of trouble trying to keep up with newer technology cars, it seems you have to dedicate one to track use if you wish to stay really competitive, BUT as long as everyone is having fun, life is darn good. Nothing beats seat time for putting that big grin on your face

 

Our local track had a weekend event. I didn't want to attend the two day event so I opted for this.


I had a few setbacks this year and never got to do my 2006 racing plan. In the spring I installed a 5 speed behind my 427 small block and was all set to purchase some 10 inch slicks up front and 12 inch slicks out back. The motor fell apart along with some other things and racing went on the back burner.

Well anyway I finally did get in about 70 some miles of track time at the local course. My lap times were only off about 5-12 seconds with my 2min 46 sec lap times compared to full blown AP & BP class trailor cars in my BSP with street tires. In my class I was on top. But I have a few things that give my 79 an unfair advantage. One of them is having a lightened caged Vette with usually 100 or more HP and bigger ci than any of the other BSP class cars(other than Vipers). Your also not going to beat a manual tranny with 3-4 speed autos

We have a very abrasive track and 3.72 miles. It was just a series of warm up laps and then off to greenflag quick 10 lap time trial and test and tune then later the 10 lap heat race. Sunday was the main events.

I made a mistake ahead of time having the alignment shop set some new camber ideas just for a track event. I had them set it at .6 degree negative camber left front and -1.1 degree right. I completely burned through the tread on the right inner two inches of tread trying to compensate for a majority of left turns. Because of running the track CCW. This included the the ware of driving to and from the track. Next time I'm going for something like -.50 & -.90 My toe was "ZERO" Caster is 3.94 both sides

It seemed like the front end was pretty well planted on left turns and some over steer in right had turns. This is to be expected if your trying to make a car be able to corner faster in one direction. I was also able to easily transition back to under steer by apply more gas petal. The manual 5 speed really shines out lapping

 

I'm doing a rain make up track day at Motorsports Ranch near Ft Worth TX this Saturday. Should be fun.

 

Hey Dave, let me know what your lap times are and try to get some tire temps as well. I have some initial data from running the Vette at the Ranch but its been down for a trailing arm bushing replacement. In fact, I just took it off jack stands 20 min ago. Now it's time for an alignment. I ran MSR 2 weeks ago in my GTO. It was fun but the track was dusty and slippery. Some guy in a C6 Z06 lost it in the weeds and filled the grill with grass. He kept running but later pulled off. I think he overheated it because it left on a flat bed.

 

You guys must be running with a different rule set, how were you able to run a stroker motor in BSP? That shoulda been SM2. Why were Vipers in BSP and not ASP?

 

I was wondering the same thing... Heavily modified Vette in BSP? Just changing the cam sticks you in SM2

 

I really didn't pay attention to what exact lettering was on some of the vipers on the track the same time as me. So your right about them being "A..." because of big motor.... As for me, I just filled out the registration card as BSP. So I was one of the many other cheaters out there. The way i looked at it is. I drove to track, one of very few in the fast classes. I was also running just Z-rated radials not some sticker RR compound.

I've also learned that over the years that it isn't hard to learn the rule book better than most of the "volunteer tech inspecters" and that includes NHRA events. If your not a serious points race where people will protest lots of things like failing to disclose unseen modifications just go on. Just like a few weeks ago in the historic races. Two bad to bone Vettes duking it out for the win. Then how come car "A" out pulls car "B" by many car lengths on every straight. Both teams are very well funded and have the "BEST stuff" within the rules.

I can bet you that car "A" probably has a full roller cam and rockers. Or the heads have had a $10,000 porting job the keeps the heads appearing stock. Where car "B" is using a rule compliant solid cam and stamped lifters just like how it is supposed to be.

 

Come to think of it the rules were kind of not by the real SCCA book. I was talking to my co worker with his 496 ci full race Vette. I could not have raced if i would have shown up with slicks. All cars with slicks were required to have the full blown fire system and few other things.

I need to reallly read through the book and see what it says about 366 - 396 ci pushrod motors and what the weight and other things are for the SM2.

i've just been looking at the online book

 

Burners - not sure if I'll get a clean run and also be able to check temps but will give it a try. This is more of a basic instructor session.


A buddy of mine is an instructor there so hoping he'll have time to give me some feedback.

 

I've got a trip to Lime Rock in mid Nov. before the long winter.

I hope to get a camcorder set up to get some vids for you guys. I had a nice spin at Mt. Tremblant and wished i had it installed then.

 

I'll be there. I'll have the silver C5 that you helped me bleed the brakes in last year. As far as COMSCC rules, as you well know, you are in SSU, Street Stock "Unlimited" since your car is considered too "competitive" for SS. (sort of a joke). For those not familiar with the rules, my buddy with a 405HP Z06 is in the same class as my 165hp 75. Since I have headers and some mods on my C5, I am in STGT,a class up from SSU.

I am planning on running my 75 next year but since it will have headers, a cam and an intake, it gets bumped out of SSU, past STGT and right into SPA!, which is mostly trailered race cars. This is what will happen to you if you mod your car.
I guess my point is, keep doing what you are doing and having fun but don't bother modding a 75 for COMSCC, the existing rules cripple you. The best thing you can do is get a set of sticky tires and just have fun.

 

Are you going to run the C5 and the C3 or just the C3?

I'm probably in SPA as well. Do you have a rollbar? If not, just run in STGT. Most of the guys in our club don't know chevys and i sure won't say anything. I have yet to stay for a day 2 in the 6 years i've been doing this.

I'm excited about the possibility of having another C3 out there. After 1 session you'll probably say "screw this" and go back to the C5. I'm trying to get some of these guys interested but they are afraid they're going to knick the paint.

 

Not afraid of the paint, since most of it fell off,, more afraid of seizing rear bearings. Technically both my cars should have roll bars, and I have one for the C5. It depends on how well the C3 handles next year. Right now, I have a burned harness so I need to rewire the car before I do anything.

 

crappy quality video, but at one point, you're passing some guy and Glenn goes by both of you in the Z06.

http://vids.myspace.com/index.cfm?fu...oID=1226093444