homebrew
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Posts
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Joined
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Hi all it has been along time since I posted last. Does anyone know the tube dimensions i.e. tube diameter and wall thickness for the Caterham, Birkin and Westfield? Just looking for the main tube dimensions. A little background to this question. I built a Locost that I now mainly use as a track day car. This year I ran into an overzealous official with a local race sanctioning body who has denied me from particpating in track days put on by his organization because he feels my car is not safe enough to be on the track. He questions not only rollbar height, material thickness and attaching points and methods but also the chassis materials, tube diameter and thickness. The tech steward understands the problems this guy has created and has suggested if I can come up with engineering data it might shut this twit down. So If I can prove the same materials were used in a Caterham it might help my case. Any help would be appreciated. Jim
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Hi Mike, it's a small world, yes I know both Bill and Pat. I've known Bill since my racing days back in the 70's and I met Pat at ORP in May and again in Oct. We seemed to hit it off really well. I'll look forward to seeing him again next year. Bill is big into Team Continental a local sports car club that I used to belong and am going to rejoin soon. I was talking to him after the last meeting and he mentioned he had a guy with a 7 that wanted some instruction and asked if I'd be interested in helping out, since he likes to pair up people with similar cars. Is it safe to assume that this would be you? Look forward to meeting you. My ph 503-539-2677
Jim
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Hi Jim, those roads are in my back yard used to run my Yamaha out there a lot. got the plates on the 7 later than I wanted so the roads stay wet in the shade and gravel and leaves, I'm playing real cautous since this thing grips so good I just don't know it at all, right now I can drive my '73 toyota p/u faster. I have been driving it when the weather permits, just throw on the helmet and vest and go. It would be great to get together and talk, I'm really impressed with you and the others that have built from scratch I am hoping to when I get some spare room to keep a project in but this car and the people I meet will help me see which way to build a personnal car for me. Also I talked with Bill Murray at the Oregon Raceway, just before they canceled the Nov date, he mentioned another 7 driver must have been you and do you know Pat Cheney?
mike
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So, tell us a little about yourselves
homebrew replied to slngsht's topic in General Sevens Discussion
Hey Mike nice to know there is another crazy 7 owner in the Portland area that is a part of this forum. I have a Locost and live in the Mt Taber area. Some of my favoite roads to terrorize are up to Corbett and then down towards bull run to Sandy. Or from Corbett out Evans Rd then over to Louden Rd to Larch Mt Rd and back into Corbett. Worst part for me is getting back into Portland and having to deal with the traffic. This past summer I pretty much dedicated the car for track use. After getting onto the track I decided it was much safer to find the limits without penalty. I went over to Oregon Raceway Park 3 times this year, the place is an absolute gas. It would be fun to do a track day with another 7, I have yet to come across one at the track although I know there are others out there. I checked out the pictures of your car you posted in your album, she is a beauty. Jim Larfield -
No build site. My car has been on the road for 3+ yrs. I'm in SE, Mt Tabor area. Jim
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I do track days, not actual wheel to wheel raicng. This year I've been at 2 Cascade Sports Car Club HPDE days at PIR and just got back from my 3rd track day with Team Continental at Oregon Raceway Park in Grass Valley. Both of those clubs are affiliated with ICSCC. I've only done one SCCA autox and didn't really care for it, just not enough speed and a lot more expensive if you work it out in minutes on course. Yes, I built my car from the ground up, no kit. Jim
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Got your PM. Didn't have time to call today. I'll try calling Wed. Jim
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It's your lucky day! I live in Portland (more like Rainland) and that is Oregon. I currently have my car set up for the track (no windshield, DOT/R tires, no headlights or front turn signals). Send me a PM maybe we can figure something out. Jim
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Bster13, yes the tonneau was meant for aero purposes. The track here in Portland is basically 2 long straights connected by squigglies on either end. Aerodynamics play a much more important role there then they do at Oregon Raceway Park. I made the tonneau and short windscreen to try to improve top speed at Portland, then I found out the club I like to run with lost there dates there and moved them to ORP. Also had a few ideas for a more aero nose but since have stopped that build. All the info Rahul posted about my car is correct. Cheers, Jim
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Ok so I don't post here often just mainly lurk, but I had to post this video of my most recent track day at Oregon Raceway Park. It's the newest track in the Northwest, about 2 1/2 hr. drive from Portland in north central Oregon. Lots of elevation change, you'll see when you watch the video. This was my first time out on my new tires - Nitto NTO1's - based on rnr comments. Last time there I was running Yokohama street performance rubber. WOW what a difference these tires make. Rahul you might remember me I was the nut running around in the rain in 08 at the West Coast Lotus Meet in Canyonville, OR. I've been following your blog on your Ultralite and thanks for the tip on the Nitto's I love them. Jim
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Thanks Todd, This is exactly the info I was looking for and then some. Hadn't considered the possible issue with oil pressure. If I do upgrade the tires for next year I'll definetly keep an eye on the o/p. Jim
