I have had a few RBs. I had 2 S7's one was an ab mods I got 13 gallons on and sold it to a friend, other was stock and got 15 gallons before a piece of the piston skirt broke off and scared up everything inside. I have a c5 with 12 gallons and another I bought used for $50 with an unknown amount that both still run strong. I have a RB mods C6 that has 9 gallons, I just put new bearings, turbo head, and con rod that still runs strong as hell. Got a short vid of when I tested it out so you can see how strong it runs. Rb's quality is great, every one I have had has lasted forever and been a breeze to tune.

Understand that I wasn't putting a race tune on the mill in the video. After putting new bearings and con rod I raise the idle so it can idle a tank at temps before I run it. After that I give it a hard run just to make sure it runs good. Ending temp was 220 running O'donnells 30% and medium plug. Only reason I took the video was I got a new palm phone that uploads directly to youtube and wanted to test it out. What sounds like a lean motor is acctually the idle gap to big from when I let it set for a tank and lowspeed was a little rich.

http://www.youtube.com/watch?v=aeTyiUFlwPI

just a little update on my B9, have about 2.5 gallons on it now and runs at about 230 and 12+ minutes of runtime. has never flamed! great engine!

thats awesome!!!! are you running it in a buggy or truggy? what pipe are you using?

Lean out the LSN like 1/4 turn, if it shuts off as soon as you pull off the plug lighter it's either super rich or the glowplug is bad. You may want to also lean out the HSN 1/4 turn as well.

truggy 1045 pipe

who makes that pipe? i know there is a RB 2045 pipe i have done a search on the 1045 and best i found was a THS pipe for the Revo..

I put an RB C6 USA crank on Ebay:
http://cgi.ebay.com/ws/eBayISAPI.dll...#ht_485wt_1475

And an RB C6 USA button:
http://cgi.ebay.com/ws/eBayISAPI.dll...#ht_485wt_2832

Tom, sorry to hear you're parting with them. Drastic times call for drastic measures. My murnan modded C6 USA was raced for the first time this past weekend and i gotta say it is one badass mill. I lent it to a friend since he lost his buggy engine so i got to watch it run. WOW! Man does that thing have instant power. Brian said he had to let off the throttle midway down the straight cuz it was already carrying so much speed. I have the 2045/192 pipe combo on it and it's so quiet it's hard to believe how fast it is. It's easily getting over 10 min a tank with a 8mm insert. It really shines down low to mid range in the power but the topend is stellar and never ending. Can't wait to try it in my truggy.

thats great to hear!! I just couldn't get that pipe/header combo to work the way i wanted it to on my truggy..
great to hear though!!!

If your running a standard C6/B9/B10 in a truggy you really probably want the 198 header rather than the 192 so you can get the extra bottom end for a truck. The C6USA has a lot more low end power so it can use the 192 header no problem.

I have the C6 BB 7T.. is that the USA version? i know it screams!!!

No the C6 USA was a limited production run engine. Shame it's not made anymore.

I know mine is not a dud!!!

Looking at getting an RB engine for buggy, I had great luck with them in the past, but have some questions, is the Killer 9/Killer 10 a decent engine, I know these are no longer nova based, or is there another recomondation for a decent RB engine at a price less than $250

the rb hobby 9 5 port, i got my for $210 at amain hobbies, i just got it so im breaking it in.