Quickest trans brake

[Tom Goldman]

Originally Posted by MacNicol Racing

Last year I switched from a standard TCI brake to a ATI "Wicked Quick" brake in my TH400. It was worth about .030-.040 in RT and much more consistent.

The ATI is very similar to the Griner .
ATI had been selling the Griner brake prior to the Wicked Quick version .
Any stock valve body based brake using the modulator valve will be much slower than the billet , internal brakes due to the small , circuitous passages and small valve diameters that come with using the OEM components.