Well theres good news and bad news.. i got a fan in the combustion chamber, good news is that it is more consistent, bad news is that it seems to consistent.. No matter if i do 2" or 8" of right guard it still goes right around 100 yards.. what now?

Thanks, i'll try using a fan and testing different mixtures and see where that goes.

Alright so i made a few simple spray and pray guns and have been browsing this site for answers but i still have a few questions.. My first gun is a 3" T and a 2 1/2 ft 2" PVC barrel and shoots about 100 yards with hairspray as fuel. I wanted to make a more powerful gun, so i decided to use a 4" x 2...