http://www.zerogravityperformance.com/product/tcm-2650-mechatronic-transmission-controller-6l80e-6l90e-6l50e/
This guy knows his stuff. He designed the 6 spds for GM. He does my tuning and helped supply the parts to beef up my 6L80. Other racers use him as well.
No worries, I did install a higher stall, about 500 over stock but the speed itself is fast and when going down hill you can not lug. I even have Wilwood 6 piston calipers and 14" rotors. You are right a higher stall should help the driving through the brakes issue. I would rather have a...
I think the biggest issue is most of the people I trail ride with have real low gearing. Last time I had it out, I would wait back about 50 yards and then catch them quickly. They wheel too slow. I am at 80:1 in my small tire FJ40 and out pace the guys I wheel with too! I always seem to end...
My race car has a 6L80 and a Np205 (1.96:1) and 5:38's. It does good at what it was built for (KOH), but sucks trail riding and technical stuff. It is not slow enough. I would think a 4:1 case would be better but if you have the room I would do a 4spd atlas all day long. I had a Black...