marshall_mosty
09-09-2014, 09:00 AM
So... as most of you guys know, I can't leave well enough alone. Also, trying to find the mysterious 1/2 second that separates myself and Mike Patterson has me digging further into my brain for great ideas to make the car faster. My current suspension (prior to this post) was a Griggs Torque arm and Watts Link. The torque arm is very long, so with the subsequent instant center being very far forward in the car, provides less than ideal bite out of the corners. The benefit of this type of suspension is the axle also doesn't want to lift much, so axle hop under braking is non-existent (good thing). I've read a lot about decoupled torque arms and was trying to think of how to utilize that idea on my car.
While scrolling thru a Coleman catalog, I came across a decoupled three-link from roundy round cars. This looked appealing, as the packing was pretty compact and it would all go in from the top. After gathering up the required chassis parts, I went to work.
http://www.colemanracing.com/Assets/ProductImages/22751-color.jpg
I didn't take any progress pics on this one due to a compressed timeline and time at the shop before the next event. So... here is the final product.
https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-xpa1/v/t1.0-9/10672429_10201529948209956_8667910869606514275_n.j pg?oh=8741fd783fd6d3fe22fe84eed5b38690&oe=548DECA9&__gda__=1419111359_b4072dcab576dc19c47718ff5d7e8d0 1
https://scontent-a-dfw.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/10672239_10201529948249957_5862500871191103073_n.j pg?oh=ea426dd2301c7b5ed88f7b6cf2bf5a94&oe=54A2A7B3
https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-xpf1/v/t1.0-9/10420156_10201529948289958_1814849722885454383_n.j pg?oh=607d0e69ca53efac1272eadd675c7e3b&oe=5492CB68&__gda__=1419190807_9bf6098b2d1caa1835367756e9beada c
This design should provide the same braking effect as I had before, but more bite on acceleration.
While scrolling thru a Coleman catalog, I came across a decoupled three-link from roundy round cars. This looked appealing, as the packing was pretty compact and it would all go in from the top. After gathering up the required chassis parts, I went to work.
http://www.colemanracing.com/Assets/ProductImages/22751-color.jpg
I didn't take any progress pics on this one due to a compressed timeline and time at the shop before the next event. So... here is the final product.
https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-xpa1/v/t1.0-9/10672429_10201529948209956_8667910869606514275_n.j pg?oh=8741fd783fd6d3fe22fe84eed5b38690&oe=548DECA9&__gda__=1419111359_b4072dcab576dc19c47718ff5d7e8d0 1
https://scontent-a-dfw.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/10672239_10201529948249957_5862500871191103073_n.j pg?oh=ea426dd2301c7b5ed88f7b6cf2bf5a94&oe=54A2A7B3
https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-xpf1/v/t1.0-9/10420156_10201529948289958_1814849722885454383_n.j pg?oh=607d0e69ca53efac1272eadd675c7e3b&oe=5492CB68&__gda__=1419190807_9bf6098b2d1caa1835367756e9beada c
This design should provide the same braking effect as I had before, but more bite on acceleration.