I think the t4 should be able to get into the 40s pretty easily with 7 cells and the Novak system. I don't know the t4 transmission ratio off hand, or I could calculate an approximate top speed. I know it gets nowhere near the posted 5800rpm/volt, but it still is a nice little system and plenty of pep for the smaller vehicles like the t4.

i am running onroad with this truck and i have a highly modified tranny. i literally have redesigned all the parts and have taken out over 20 grams of rotating mass. i can push that gearing cuz i have alot less mass to turn, so all the power goes to the ground.

What speeds has your eagletree recorded?

I've been 53 mph in my bandit with my SS on 30/72 gearing and 7 GP cells.

Normal gearing(18-20/81 or so) will get me around 40-42 mph on 7 GP cells . These systems thermal really easy so you have to watch the temps closely and find the right gearing.

well like i said, i havent had time to run it outside yet, but on the stand it hit 52. i know that will drop off to about 44-45 on the ground.