Curtis Guise
February 10th, 2006, 19:05
<html> <head> <title>Curtis Guise T100 rear suspension</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> </head> <table width="75%" border="0"> <tr> <td colspan="3"> <div align="center"><b><font face="Arial, Helvetica, sans-serif">Rear Suspension</font></b></div> </td> </tr> <tr> <td width="44%"> </td> <td width="27%"> </td> <td width="29%"> </td> </tr> <tr> <td colspan="3"> <p><font face="Arial, Helvetica, sans-serif">Before starting the rear cage I built the rear suspension components so I could figure out where to cut the stock frame off. The lower control arms for the 4-link were built from chromolly 1/8" plate and 1-3/4" tubes that were evenly spaced the full length of the arms. I used 1-1/4" heims on each end and the threaded sleave connects to the 1-3/4" tube on the inside of the arm at each end. TIG welding was by Josh of Johnson Bicycles in Antioch, CA. The upper links are 1-1/2" x .120 4130 with 7/8" FK heims at each end.</font></p> <p><font face="Arial, Helvetica, sans-serif">To prevent the lower arms from twisting and destroying the shocks I replaced the lower heims in the shock mounts with custom delrin bushings that I made on the lathe. This shock mounting method and lower arm design has been used for years by Mark Newhan and Stewarts Raceworks but the design was originally conceived by Jon Nelson in 1993 while building "Arnold". Jon's arms had allot more shape to them and all the pieces were cut with a band saw. Mark's reason for building them the way his (and mine) are is to cut fabrication time and with the straight cuts you can have the pieces easily sheared to size.</font></p> </td> </tr> <tr> <td width="44%" height="122"> <p align="center"><a href="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear1.jpg" target="_blank"><img src="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear1s.jpg" width="250" height="188" border="0"></a></p> </td> <td width="27%"><a href="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear2.jpg" target="_blank"><img src="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear2s.jpg" width="250" height="188" border="0"></a></td> <td width="29%"><a href="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear3.jpg" target="_blank"><img src="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear3s.jpg" width="250" height="188" border="0"></a></td> </tr> <tr> <td width="44%"> </td> <td width="27%"> </td> <td width="29%"> </td> </tr> <tr> <td width="44%"> </td> <td width="27%"> </td> <td width="29%"> </td> </tr> <tr> <td colspan="3"> <p><font face="Arial, Helvetica, sans-serif">The <a href="http://www.1speedway.com/" target="_blank">Speedway Engineering</a> 35 spline full floating 9" (purchased through <a href="http://www.camburg.com" target="_blank">Camburg</a>) needed gusseting and mounts for the suspension. I clamped the housing to a large piece of I beam we had laying around before welding to it.</font></p> </td> </tr> <tr> <td width="44%" height="182"> <p align="center"><a href="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear4.jpg" target="_blank"><img src="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear4s.jpg" width="250" height="188" border="0"></a></p> </td> <td width="27%" height="182"><a href="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear5.jpg" target="_blank"><img src="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear5s.jpg" width="250" height="188" border="0"></a></td> <td width="29%" height="182"> <p align="center"><a href="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear4a.jpg" target="_blank"><img src="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear4as.jpg" width="250" height="188" border="0"></a></p> </td> </tr> <tr> <td colspan="3"> <div align="center"></div> </td> </tr> <tr> <td width="44%"> </td> <td width="27%"> </td> <td width="29%"> </td> </tr> <tr> <td colspan="3"> <p><font face="Arial, Helvetica, sans-serif">I used 1/4" chromolly plate to make the upper shock mounts. I used a torch to heat it up enough to put the bend in the plate. The upper section above the shock mounts was made from 1/8" plate. It took allot of time to make all of the pieces fit right.</font><font face="Arial, Helvetica, sans-serif"></font></p> </td> </tr> <tr> <td width="44%"> <div align="center"><a href="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear6.jpg" target="_blank"><img src="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear6s.jpg" width="250" height="188" border="0"></a></div> </td> <td width="27%"><a href="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear7.jpg" target="_blank"><img src="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear7s.jpg" width="250" height="188" border="0"></a></td> <td width="29%"> <div align="center"><a href="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear8.jpg" target="_blank"><img src="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear8s.jpg" width="250" height="188" border="0"></a></div> </td> </tr> <tr> <td colspan="3" height="11"> <p align="center"> </p> </td> </tr> <tr> <td width="44%"> </td> <td width="27%"> </td> <td width="29%"> </td> </tr> <tr> <td width="44%"><a href="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear9.jpg" target="_blank"><img src="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear9s.jpg" width="250" height="188" border="0"></a></td> <td> <p><a href="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear10.jpg" target="_blank"><img src="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear10s.jpg" width="250" height="188" border="0"></a></p> </td> <td> <p><font face="Arial, Helvetica, sans-serif">4" bump stops and a Speedway Engineering sway bar. 1-1/4" .188 wall. I turned out delrin bushings on the lathe for the sway bar and used aluminum arms from Speedway. The splines stripped out at the 1000 in November so we built custom 4130 arms. I will post pics of those once they are installed. Limit straps are from <a href="http://www.offroadwarehouse.com">Offroad Warehouse</a>.</font></p> </td> </tr> <tr> <td width="44%"> </td> <td width="27%"> </td> <td width="29%"> </td> </tr> <tr> <td width="44%"> </td> <td width="27%"> </td> <td width="29%"> </td> </tr> <tr> <td colspan="3"> <div align="center"><font face="Arial, Helvetica, sans-serif">Pictures of the finish rear suspension. 25" of travel.</font></div> </td> </tr> <tr> <td width="44%"> <div align="center"><a href="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear12.jpg" target="_blank"><img src="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear12s.jpg" width="250" height="188" border="0"></a></div> </td> <td width="27%"><a href="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear13.jpg" target="_blank"><img src="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear13s.jpg" width="250" height="188" border="0"></a></td> <td width="29%"> <div align="center"><a href="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear14.jpg" target="_blank"><img src="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear14s.jpg" width="250" height="188" border="0"></a></div> </td> </tr> <tr> <td width="44%"> <div align="center"><a href="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear15.jpg" target="_blank"><img src="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear15s.jpg" width="250" height="188" border="0"></a></div> </td> <td width="27%"><a href="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear16.jpg" target="_blank"><img src="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear16s.jpg" width="250" height="188" border="0"></a></td> <td width="29%"> <div align="center"><a href="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear17.jpg" target="_blank"><img src="http://race-dezert.com/forum/attachments/project/curtis/rearsuspension/rear17s.jpg" width="250" height="188" border="0"></a></div> </td> </tr> <tr> <td width="44%"> </td> <td width="27%"> </td> <td width="29%"> </td> </tr> <tr> <td colspan="3"> <div align="center"></div> </td> </tr> <tr> <td width="44%"> </td> <td width="27%"> </td> <td width="29%"> </td> </tr> <tr> <td width="44%"> <div align="center"></div> </td> <td width="27%"> </td> <td width="29%"> <div align="center"></div> </td> </tr> </table>
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