kynan
Junior Member
Posts: 89
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Post by kynan on Sept 8, 2010 10:25:59 GMT -5
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Post by wtsf150 on Sept 8, 2010 13:50:58 GMT -5
Kynan so far so good heres a really good link to look at for more reference desertrides.com/ go here i have used it before on a couple of off-road race trucks i've built Willie
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Post by jeffs396 on Sept 8, 2010 20:07:41 GMT -5
I like the direction this is headed in!
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Post by tooltas on Sept 9, 2010 14:47:54 GMT -5
yes it has trophy truck look to it
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Post by yellowtruck99 on Sept 18, 2010 9:26:22 GMT -5
Looks great, I've always wanted to build a racer, this might give me the motivation
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Post by tooltas on Sept 19, 2010 12:20:16 GMT -5
it look alot chevy
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Post by intimidator01 on Oct 3, 2010 8:04:01 GMT -5
Pretty Cool! Pretty Cool!
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Post by dustymojave on Mar 3, 2011 11:58:43 GMT -5
Hi Kynan, Long time! (Mojaveracer208 on DRM) Looks good. Any progress lately? My son is working part time with a friend of mine at a fab shop called Crumco here in our little town. They are staring on a project to build a number of offroad race cars for Oz. I can't give out too much in the way of details yet, but they will have have fiberglass/composite production car bodies with production engines in a rear engine tube chassis and offroad suspension. When I can offer more info, I'll post in on here. If you can get a Hot VWs magazine, the March 2011 issue has an article on a car they built recently. It's owned by a Chief of Police in a city near the California/Mexico border. That chassis is the basis for the new Oz racers. Here's a shot of one of their cars, a Class 5-Open Baja Bug Hi Kynan, Long time! (Mojaveracer208 on DRM) Looks good. Any progress lately? My son is working part time with a friend of mine at a fab shop called Crumco here in our little town. They are staring on a project to build a number of offroad race cars for Oz. I can't give out too much in the way of details yet, but they will have have fiberglass/composite production car bodies with production engines in a rear engine tube chassis and offroad suspension. When I can offer more info, I'll post in on here. If you can get a Hot VWs magazine, the March 2011 issue has an article on a car they built recently. It's owned by a Chief of Police in a city near the California/Mexico border. That chassis is the basis for the new Oz racers.
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Post by dustymojave on Mar 3, 2011 12:19:18 GMT -5
I DO see an issue in the chassis design of your truggy here. Where the rear portion of the frame ties into the cab cage, there is no continuity of force flow through the chassis structure. It is a 't' shape. The crossmembers at the back of the cab go straight across and the rear lengthwise tubes 'T' into them at right angles. This causes stress risers in the cross tubes due to lengthwise forces, especially with the mass of the engine and trans right behind the cab. A full scale racer built like this would break those rear cab crossmembers and maybe even break in half. (That has happened before!) 'T' intersections in a structure are always a problem. And should always be avoided in chassis design.
Suggested fixes: - Run lengthwise floor members from the front frame back to the bottom rear cab crossmember right where the rear lower rails tie into the crossmember. - Put an 'A' in the windshield area from the upper front rails to the front crossmember of the roof, then from there add roof bars which angle out and back to the top rear roof crossmember where the upper rear braces tie in. - Add tubes which start at the back of the cab cage at the shoulder height where the mid crossmember ties into the corner upright. Angle back from there to the upper rear rails where the rear cab braces tie into the rear top rail. The rear shocks would be inboard of these tubes.
These together would make this a stout frame for an offroad racer.
Another item is that American rules (SCORE and all other offroad race series - FIA has similar rules) require a diagonal member in the back of the cab cage from one top corner to the opposite bottom corner. An 'X' is even better, but at least one diagonal dividing that square into 2 triangles. Squares are weak, triangles are the strongest shape of all.
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Post by gray07 on Mar 3, 2011 14:36:26 GMT -5
cool build
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Post by Big Ed on Mar 3, 2011 22:46:01 GMT -5
Don't know what happened to Kynan. I've tried contacting him, but got no replies.
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