1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Ttt steering rack thoughts

Old May 31, 2026 | 01:30 AM
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From: ATL,GA
Originally Posted by peejay
1/8 to 1/4" of toe change per INCH of travel?

Maybe fine if you stiffen the suspension up so far that it doesn't move.

Experience and video show that the suspension moves way more than that when driving on the street.
The suspension easily exceeds one inch of travel on the street, absolutely.
Stock RX-7 geometry produces 1/8-1/4 inch of toe-in per inch of upward travel, this is the rate of change, not the total.
On a typical bump or during cornering, that quickly builds to 1/4- 1/2 inch of unwanted toe-in with a stock Rx7. This is the mild bump-steer the factory geometry produces.
Turn-In Spacers correct this geometry issue.

Last edited by MTheoryInc; May 31, 2026 at 01:33 AM.
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