Do you or do you not need a shorter RTA with a 1- 1.25 drop? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

verboten · 03-06-2010, 09:05 AM

If you drop the car 1.25" with Eibach, pfat, etc. do you need a shorter rear trailing arm to obtain OEM alignment specs?

Also, what are OEM specs and should they be the same after a drop or changed a little to compensate?

PfadtRacing · 03-06-2010, 04:30 PM

Hi verboten,

Thanks for posting your question. Please take a look at our recommended alignment values in this PDF below, it will outline the values you should try to aim for, when using drop springs and/or other components for a variety of uses ranging from full street to dedicated racecar.

http://www.pfadtracing.com/blog/wp-c...-alignment.pdf

You do not need to install aftermarket rear trailing arms to accomplish the "performance street" alignment settings that I have posted below. Take a look and let me know if you have any questions! We are here to help.

Front

min Camber (deg) -0.9
max Camber (deg) -1.1
min Caster (deg) 7.5
min Caster (deg) 8.5
min Toe -1/16"
max Toe 0

Rear

min Camber (deg) -0.7
max Camber (deg) -0.9
min Toe -1/16"
max Toe 0

Notes
These settings will provide good performance and good tire wear

03-06-2010, 09:05 AM	#1
verboten Drives: Black Join Date: Jan 2010 Location: Chicago Posts: 562	Do you or do you not need a shorter RTA with a 1- 1.25 drop? If you drop the car 1.25" with Eibach, pfat, etc. do you need a shorter rear trailing arm to obtain OEM alignment specs? Also, what are OEM specs and should they be the same after a drop or changed a little to compensate?

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03-06-2010, 04:30 PM	#2
PfadtRacing Drives: 2010 Camaro, 2006 Z06 Join Date: Feb 2009 Location: SLC, UT Posts: 3,370	Hi verboten, Thanks for posting your question. Please take a look at our recommended alignment values in this PDF below, it will outline the values you should try to aim for, when using drop springs and/or other components for a variety of uses ranging from full street to dedicated racecar. http://www.pfadtracing.com/blog/wp-c...-alignment.pdf You do not need to install aftermarket rear trailing arms to accomplish the "performance street" alignment settings that I have posted below. Take a look and let me know if you have any questions! We are here to help. Front min Camber (deg) -0.9 max Camber (deg) -1.1 min Caster (deg) 7.5 min Caster (deg) 8.5 min Toe -1/16" max Toe 0 Rear min Camber (deg) -0.7 max Camber (deg) -0.9 min Toe -1/16" max Toe 0 Notes These settings will provide good performance and good tire wear