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Old 04-18-2013, 05:15 PM
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Mutt's37Buick Mutt's37Buick is offline
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Different approachs to reduce bumpsteer

I'm hoping some experienced builders can help me with questions I have on tie rods and center link design to minimize bumpsteer.
I'm designing these components for my 37 Buick similar to wiki: http://www.crankshaftcoalition.com/w...ension_upgrade

I'm using primarily GM truck components in my build.
I'm using a Saginaw gearbox instead of R&P described in the referenced wiki because I need more travel than a R&P can provide.
One circle track website I found discusses determining a tie rod length based on geometry and then aligning that tie rod so it passes through an "instant center" (point whereupper & lower control arms cross) to reduce bump steer:
http://www.circletrack.com/chassiste...eer_explained/
Heidts describes how the Mustang 2 front suspension works and a different expalnation for preventing bumpsteer. It says the upper & lower control arms are parallel which means there is no "instant center". It describes a specific length of tie rod that must be tied in at very specific lines.
1) Are both methods valid?
2) Does anyone know which approach is used in design of a 70's to 80's 2wd Chevy truck?
Thanks
Attached Files
File Type: pdf Heidts, Understanding ifs pg 1.pdf (160.7 KB, 77 views)
File Type: pdf Heidts, Understanding ifs pg 2.pdf (157.4 KB, 69 views)

Last edited by Mutt's37Buick; 04-18-2013 at 05:21 PM.
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