I looked into it. A few post I read said it wasn't worth the gains. But let me know what you fund because I'd like it know.
Edit:
I do not think we would have enough fuel room to add it. 15% fuel increase for every 5% nitro.
http://www.yellowbullet.com/forum/showthread.php?t=46916#/forumsite/21026/topics/46916