Okay. I'm going to be getting a HPI firestorm soon. I want to upgrade the angine after I get it. I am thinking about either an OS .18. Which model do I need. (I need rotarary carb)TZ, CV-R (I dont know if thats right). Anyway. What model OS would be a direct drop in. I was also thinking about a Associated Z.18s Pro spec http://www3.towerhobbies.com/cgi-bin...?&I=LXPRL0&P=0 . Which engine is faster and whick is a direct drop in. Also, does anyone have a link to the OS .18 (whichever model is the direct drop in)( Preferably on tower). Also, what exhaust header would I need for the OS or for the Associated? I dont know if the stock on will fit?

Thanks so much guys

what other do you need
rotary carb.... side exhaust sg shaft???
os 18 cv-rx thats what im gettin so we can have fair races lol

it should be a direct drop in might have to cut the shaft



what is the stock header ???? rear exhaust or side


this for side
http://www3.towerhobbies.com/cgi-bin...?&I=LXGGP7&P=7

if u need a header idk lol

Okay. Why and how would you cut the shaft??? Also, Does anyone else know what type of header to get? Would youhave to cut the shaft on the LRP?? Thanks.!

pmed you
i had to cut the shaft for my diablo about a couple mm
but diablo is crap lol

i know the os18cvrx is direct fit in a evader no cutting idk bout the lrp

the clutch nut might not fit so u have to cut the crankshaft
so the clutch nut will keep the flywheel in place

So, I wouldn't have to cut the shaft for the OS? So. I would just put the flywheel, collet, cb, and clutch shoes on from the stock engine? And I would be good to go wit the OS .18 CV-RX on a Firestorm? (Does anyone else other than carpet aka daniel know for sure). And will the stock exhaust header work on the os? If not, can someone give me a link on tower to one that will work wit the stock pipe and the os .18 cvrx? Thanks.

i dont know if its a direct fit on the firestorm
is the stock header a rear or side! lol is it a circle or line thing lol

The stock header is side and it's a line thingy like the evader.

And if the evader header works, i could just buy an evader one

Does anyone know if i need this http://www3.towerhobbies.com/cgi-bin...&I=LXGGP8&P=ML or this http://www3.towerhobbies.com/cgi-bin...?&I=LXGGP7&P=7