View Single Post
Old 08-27-2018, 07:01 PM   #1
ccdrift
Member
 
Join Date: Oct 2017
Drives: 2013 FRS
Location: Michigan
Posts: 13
Thanks: 0
Thanked 4 Times in 4 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
SCCA T4 Race Car Build - Suspension

Hi all, someone may already bring this up long time ago, but I did not find specific answer. Hope to get some help here.


I have my 2013 FRS since this March and had some track time in Michigan this summer. Since I raced Spec Miata before and really want to build this FRS to a full race car.


SCCA T4 would be good option. My question is what suspension/spring/damper is allowed in this class. Or what suspension do you use for T4 class? I bought my race ready Spec Miata, so I am new to how to build a car for racing. Any help would be appreciated.


What I found so far on SCCA GCR is:
Eibach 4.10582.880 and SPC 67660 allowed. Front strut tower brace allowed. Raceseng, part # raceseng-ft86-r-shock-top permitted.
Non-OEM limited slip differential allowed with +50 lbs. weight
penalty. 55mm flat plate restrictor required. Only 17” wheels permitted.


Eibach 4.10582.880 is Sportline Springs + Sway bar kits.
Does that mean the only spring upgrades to run T4 class is this Eibach Sportline Springs? We have to use OE damper?


Thanks,
Chen
ccdrift is offline   Reply With Quote