Originally Posted by
slotracer577
the only D3.5 that is still roar legal is the 21.5. The 10.5, 13.5 and 17.5 were all removed from the list due to having wire that was too large.
On road is much easier to figure out than oval
I race both, and for most of the big oval races, it depends on the class whether you can use the non roar approved D3.5s. Very confusing to say the least and the constant flip flop has pissed almost everyone off. Hopefully next year and beyond will be better. ** Sorry for the rant ** I love the trinity motor design and configurability.