Re: T4 Mustang prelims and request for help.
#31711 from Tim Myers · No action required · Minutes (2022-01 Fastrack)
Thank you for your letter. The T4 Mustang has had the most positive adjustments of any car in the class over the past 5 years. In
that time period; the weight has been decreased by 75 lbs, wheel size and width increased to 18x8, the OE wheel requirement
was removed (decreasing rotating mass), the spring allowance was improved, A/M shocks were allowed (including fully custom
non-adjustable), LSD options were opened up, a cold Air intake was allowed and the 50mm flat plate restrictor was
removed. We also allowed the Mustang GT brakes. The committee is continually trying to make this car competitive. We will
continue to look at this car and we're considering future allowances.