you can get a heavier flywheel and everyththing works perfect. The one Randy had weighted 13.7 lbs. I had a custom flywheel made that weights 20 lbs and everything works great. BTW ALL the really fast Supras and EV's are using this setup. It holds more power than the RPS and lasts way longer.
Harry
Formerly yellowzxtt
" If it doesn't make it faster, i don't care " Please visit www.ztuner.com to GO FASTER