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Posts
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Joined
Personal Information
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Location
Kalamazoo, MI
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Occupation
Engineer
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Thanks for the offer. I'm down in LA every couple weeks for work, so I'll send you a PM next time I've got a trip planned.
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Hi everyone. I'm considering a Birkin S3, but I've only sat in the cockpit of a mid-90s Caterham which seemed okay, but I'm not sure about the fit with the Birkin. Is there anyone in the Bay area who would be willing to let me sit in your Birkin? Thanks so much!
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The Regular Summary of Classified Ads of Se7ens Found For Sale
Hyper replied to Croc's topic in Cars For Sale
I'm almost certain that's Graeme's car http://www.usa7s.net/vb/showthread.php?4124-05-Caterham-Super-7-and-Trailer-for-sale -
Hey I recognize that one! I work with the guy who built it and is now selling it. He's trying to free up some room to make a 4 person locost so he can get the whole family in.
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Red 99 NB1, replaced the stock wheels and super-economy radials with 15x8 6ULs and 205 RE-11s. Bought it last May with 39k and have put 20k on it only driving during the summer.
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http://joesaward.files.wordpress.com/2011/04/caterham-f1.png "What is not widely known is that a Lotus 7 took part in a Formula 1 race in South Africa in December 1962. The Rand Grand Prix was held at Kyalami and attracted a sensible field, including Jim Clark, Graham Hill, Richie Ginther, Innes Ireland, John Surtees and others. It was won by Clark in his Lotus 25, followed home by Trevor Taylor in a similar car. John Surtees was third in a Reg Parnell Lola while Gary Hocking was fourth for Rob Walker. Down in 11th place was a local hero called Brausch Niemann, at the wheel of a Lotus 7, who had managed to qualify the car 21st with a lap time of 1m44.5s, which was a pretty good effort compared to Clark’s pole of 1m35.0s. Niemann was the last qualifier as the organisers had set a 1min45secs limit. Thirteen cars failed to make the cut, including some pretty sensible racing machinery from Cooper and Lotus." From: http://joesaward.wordpress.com/2011/04/29/caterham-and-f1/
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Scott, where are you at in Michigan?
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Reminds me of the Evisol Thorr from 3 years ago. http://www.autoblog.com/media/2008/04/02_thorr_evisol_450-op.jpg "If a company set out to develop an electric sportscar, the Lotus 7 (or one of its various replicas) would be a good place to start. Considering that the main ethos of the vehicle is light weight, relatively heavy components like the battery aren't going to kill performance. Using a Siemens AC motor which is capable of a heady 272 horsepower and weighing in at 1,664 pounds, we don't think that the acceleration will suffer too much. The battery is made up of 196 Kokam lithium polymer cells and has a capacity of 29 kWh. Find all of the specifications here." http://green.autoblog.com/2008/04/29/electric-super-seven-from-evisol-thorr-offers-high-power-and-lig/
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I found these last night at Walmart. I couldn't help my self and bought 3 of them. Now I'm going to figure out how to take it apart and paint it.
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Old Farts really stomp on it! Great day for a club drive
Hyper replied to twobone's topic in General Sevens Discussion
Any more info on the 23? -
What wheels are those?
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I feel kind of bad, there are 4 sevens that got left out. Also, something hiding in the grass, hopefully not a 5th.
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I actually like the livery, but those doors and that interior...
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Another big consideration is transmission design. A bike transmission has straight cut gears and sliding clutch (dogs), while a car transmission has helical cut gears and synchronizers. Single clutching with a dog box can be problematic because the input shaft won't slow down to match the new engine speed without the clutch engaged. That means when you try to force it into gear with the clutch fully open you're slowing down the input shaft you're using metal/metal contact which slowly wears the sliding clutch. What Andrew is suggesting is basically synchronizing with the clutch disk itself, which probably works quite well. As soon as he breaks torque the sliding clutch can disengage, the drag on the flywheel from the clutch slows the input shaft and then the sliding clutch can re-engage. I also agree shock loading is probably much higher, but I'd be interested to see what a BEC transmission failure really looks like.