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Footage from the Ultimate Track Car Challenge, the weekend before Optima Charlotte. Here is the edited video of my fastest official lap, I ran a 2:08 but was disqualified because I put two wheels off the track on an earlier lap in that session. I hope you can view it, let me know if you have any trouble.
http://i539.photobucket.com/albums/f...psxqyxqsnk.mp4 |
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There was zero traction. You did good!! |
I've been taking a break and fixing some broken parts all while re engineering some, but I've been working on Video from the events this summer. First up is the same video from UTCC as I posted before only this time with Speed and G force overlays. When you watch the video, look at the g-meter and my keychain, they are in sync! LOL, enjoy!
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Yeah I got that too, I'm trying to fix it, not sure what happened
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I'll be watching for it.
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ok, so here's a video from the Optima Challenge Autocross portion in Charlotte. Literally the worst autocross course I've ever driven! My steering could not keep up with all the 180 deg switch backs, I ended up 15th so apparently the other cars managed it ok. Still working on the UTCC telemetry video, I think it may be to big for photobucket, working on getting it on YouTube.
http://i539.photobucket.com/albums/f...psdtcjww8s.mp4 |
Fixed!
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Looks like fun
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Updates! I'm coming back out of hiding for all the winter project updates. After Optima in Charlotte I needed to take a break on car stuff (according to my wife). Now I'm back on all the winter projects. After Charlotte I found I had broken both rear shocks off at the tip on the last session of the hot laps. Other than that, nothing else was broken! Now I have some time to work on my "nice to do" list instead of "I gotta make the next race" list. Since both shocks were broken in the same place I decided it was time to re-engineer the whole coilover setup in the rear. I never really liked it to begin with and I've been wanting to go inboard for a long time, so I finally took the time to start actually doing it. Here's some shots of what I have so far.
http://i539.photobucket.com/albums/f...psop7ulbht.jpg back to the drawing board... http://i539.photobucket.com/albums/f...psftbpn592.jpg some new parts cut out and welded together for the rockers http://i539.photobucket.com/albums/f...ps6ejjchit.jpg All mocked up and ready to slide into the trunk area under the package tray. http://i539.photobucket.com/albums/f...pso1mz0ijx.jpg Push rods installed and clearences made to clear the frame and get into the trunk. http://i539.photobucket.com/albums/f...psgyjoenpe.jpg It all looks good and the tire has plenty of clearance on the inside inner fender. Next up is to pull it all back out and finish welding and paint the assembly. while it's out I'll finish out the notched frame rails and clean that area up, and also add some support to it since I cut it out. Other plans for the winter are to add an L88 style hood with the front section vented for the radiator and a few other odds and ends. I have to buy a new helmet and shoes this year too, that cuts into the car parts monetary fund. I also picked up an LS2 6.0 block that I want to build a stroker motor with. I found out real quick that if I want to really run with the big dogs I'm gonna need a bigger motor! Stay tuned! |
Nice project!
It bothers me, however, that both shock tops broke off like that.... and I wouldn't sleep well until I discovered what was putting that kind of bind (or whatever) on them to make that happen. My radar would be up that something else in the car was moving around and trying to make the shocks act as some kind of rear end locator.... |
yeah it bothers me too. I did spin off the track and came back on it sideways with both rear wheels and it took a pretty good hit, I'm about 90% sure that's when the broke. I came in after that and didn't run again. I noticed they where broke when I loaded it on the trailer. I was hard to tell because they still looked intact because the weight was holding everything together still. I've taken the new setup through full ranges of motion and every scenario I can think of and it looks solid.
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Ah ha!! Yeah -- that could certainly explain the issue!! I cut a Hoosier doing that once.... a spin with only the back two going off a little and coming back on. There's a LOT of sideways pressure going on there that the car doesn't like!! LOL
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Very cool inboard setup :cheers:
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Almost got the Inboard setup done, the disaster struck. Some low life decided to steal my welder! mostly my fault for leaving it outside by my workbench, still hidden from street view but someone must have been staking it out. Lock your stuff up fellas, I made a mistake and now my welder is gone. Anyway, while I'm dealing with the police, here is the progress pics that I have up until now.
Relief pockets in the frame all done. http://i539.photobucket.com/albums/f...pslubthucr.jpg Not a bad weld not having any practice in a while... http://i539.photobucket.com/albums/f...pspcjdhvz2.jpg While I was at it, I decided to add a little bling to the trunk... http://i539.photobucket.com/albums/f...psvb1zoio5.jpg Bigger things are coming for next year! http://i539.photobucket.com/albums/f...psgfrl2sit.jpg Couldn't find a 6.2 block on the cheap but... http://i539.photobucket.com/albums/f...psxruvcuqi.jpg |
All finished up! well almost. I still need to make some covers for inside the wheel well to try and keep most stuff out of the trunk from the pushrod reliefs. Got it back on the ground after Christmas and was able to drive to our local Cars and Coffee Jan 2nd. Everything worked perfectly, its actually smoother and quieter than the previous setup! Its really hard to keep my focus on the road instead of watching it all work through the trunk in my rear view mirror! I haven't beat on it hard yet, but I did take it through its paces on a really rough road.
http://i539.photobucket.com/albums/f...psm1dy5qyg.jpg http://i539.photobucket.com/albums/f...pslzfewkvv.jpg http://i539.photobucket.com/albums/f...ps6nw4zoil.jpg http://i539.photobucket.com/albums/f...psl2czo0bm.jpg |
Nice! Next time I'm out your way I need to see this in person. Maybe a hot lap around the block to.
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Sure! I have a passenger seat with a 6point harness and a favorite on ramp!
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I can't remember. What was the reason for the inboard pushrod setup? Are you able to fit longer shocks now?
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very popular modification when students compete in FSAE |
Partially true, I never liked the way they had to be mounted under the car to clear all the IRS stuff, over time and racing (and wrecking) I snapped the top off them 3 times. Plus it looks cool!
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It does look cool! I was blown away but this style of setup when I saw it in Mike Maier's Mustang years ago.
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Cool! What did you use for the bushing or bearing?
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I used oil impregnated Bronze bushings on each side pressed into the rocker. There is a tube in between the plates where I have a grease fitting so I can fill it full of grease. The bolt through the middle is called an axle bolt and it only has threads on the end so the shank and the bore of the bushing is the same. Perfect fit actually, It took me a while to figure out how to do it cheaply, but it works great, and if it wears I can replace the bushing for about 85 cents each!
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Thats killer. I am looking at doing something similar and was looking at either needle roller bearings with a thrust washer and or taper roller bearings but man like you said they sure are expensive. Let us know how they hold up and if there is any sticktion to the assembly.
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Yo, BeachCruiser, I'm sorry if I missed it in your earlier posts, but what initially turned you off on the original Corvette monoleaf setup, particularly in the rear, where it's so easy to change ride height? I kind of like the idea (and function) behind it, in that it's so ridiculously light . . .
I look forward to using my car like you use yours sometime this year . . .:whenitsdone: |
Even with the monoleaf spring you still have to make provisions for the shocks, so I decided to go coilover instead. Makes it pretty easy to change the ride height, and corner weight the car. Also I wanted the flexibility to change spring rates. I'm on my third set of springs now. I think I finally have the car balanced. The stock corvette spring rate is set for a corvette, I weigh more in the rear than a Vette.
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It shouldn't snap/crack/fracture/break. If it is snapping, it's not because of the style setup |
Yeah, I took that course years ago, the were breaking because they where getting bound up under certain circumstances and there was to much side loading (bending) on the shafts. that can't happen anymore. Like it sits they can only move linearly.
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First AutoX today with the new setup, everything worked perfectly! I need to adjust the ride height and re align everything. The camber and toe was pretty far off, I just didn't have time to deal with it before the AutoX. Next stop, New Jersey Motorsports Park to get a little seat time around the Thunderbolt course to prep for the Optima event there in May. JonnyMac even came out for a ride today.
http://i539.photobucket.com/albums/f...psbbjnrxvm.jpg No more low hanging Coilovers! http://i539.photobucket.com/albums/f...psgsrmixha.jpg |
Looks great. Good luck this year!
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After the AutoX, I went to work to dial in the car for a trip to New Jersey Motorsports Park for some track test and tune time to prep for Optima. First off I scaled the car and set the cross weights. She's got some ballast in her to make the min 3200lb Optima challenge rule, but the cross came out pretty good! next up was getting her all aligned and pointed straight. There's a new shop here called Rent a Lift, you pay for shop time by the hour and have full use of the shop. I rented the alignment rack for $65 and was able to dial everything in like I wanted! Pretty cool to be able to do it yourself. At Jersey, we unloaded the car and had a little garage party with all the German import guys that were there, everyone loved the car! believe me it stuck out in the garage! The next day was open track day and you could run as much as you wanted! We hit the track at 9am and ran 45 mins, then came in to cool down. When we went back out the second time my guys noticed a small spot on the garage floor while I was running. It turned out to be Diff oil. The car ran great all morning, and really surprised a bunch of Porsche and BMW guys. After I came back in we discovered a leaking casing, it turned out that I had a broken mount on the camber control rod and the casing was not sealed tight. After finding the broken mount I decided to pack up for the day and bring her home (un wrecked) Here's a few pics.
http://i539.photobucket.com/albums/f...psf83xvqpq.jpg http://i539.photobucket.com/albums/f...ps7kd8qonl.jpg http://i539.photobucket.com/albums/f...psdfwvvlv1.jpg http://i539.photobucket.com/albums/f...psxf3niip8.jpg http://i539.photobucket.com/albums/f...ps7dqrmcqq.jpg |
Done for the day and packing up, hey at least we got to drink beer early!
http://i539.photobucket.com/albums/f...ps5mwtth29.jpg http://i539.photobucket.com/albums/f...psd5n5v6gd.jpg http://i539.photobucket.com/albums/f...psb55ps8f2.jpg |
What tires you running for the Optima event?
Also, you changing tires or do you have another set of rims with a close setup? Good Luck this weekend..... |
I have matching pair of wheels on my '00 WS6 with the "street" tires on them. I just swap between the two cars from Hoosiers to Rivals. No changing tires on the rim, just swap from one car to the other! I'm cheap like that! (mostly just broke) Just got two new Rivals to match the other pair of Rival S that I used last year at the Charlotte Optima event. I'm glad I ordered them early, most places are already out of stock!
http://i539.photobucket.com/albums/f...psu1lfqhei.jpg |
All fixed up and back in the car this weekend! The local race fab shop did some Tig work and then added some extra material to give it a little more strength. The car should be ready for AutoX next sunday.
http://i539.photobucket.com/albums/f...psuolrigvc.jpg http://i539.photobucket.com/albums/f...pslbwjmdz2.jpg http://i539.photobucket.com/albums/f...pstww5ftzw.jpg |
Took the car to the local AutoX this weekend to shake it down and break in the new Rivals. The car was better than the driver for sure! Here's a couple of videos of my fastest run, one from the in car camera and the other pointed at the rear inboard shocks. I ended up finishing 8th overall out of 42 cars. Not bad for the guys I was up against.
http://i539.photobucket.com/albums/f...psigj67wcf.mp4 http://i539.photobucket.com/albums/f...pstmbcm8na.mp4 |
glad to see it was an easy fix for you.
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I like the shock angle shot... Nice work.
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Putting some interior back in the car getting ready for Optima NJ, you know, because street car! Decided to add a little flair instead of some plain old vinyl. Also Polished it up a bit, it actually has a little shine to it now.
http://i539.photobucket.com/albums/f...psznwcnreb.jpg http://i539.photobucket.com/albums/f...pswrhenilo.jpg |
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