RB Killer 9 presentation
#17
Tech Regular
I have been pulling the trigger in this engine for almost a gallon, weird thing is that the engine is taking a long time to break in, even now it locks up frequently. during tuning, idle wasn't consistant but the upside is that I see that there is untapped power still in it. only problem is to get past the tricky tuning and getting it right. So far I am pleased with it inspite of the difficulties tuning. Gonna keep tuning it till I get it right and take it for the race this month to see how it holds up. Keep you guys posted.
#18
Tech Regular
#19
Tech Rookie
Hey guys check this out. it seems that Ofna's Force engine line and this RB K9 may be the same motor. please compare the two. Very striking resemblance. If these 2 are the same, then we now know who and what company made the K9.
http://www.nitrohouse.com/catalog/pr...ducts_id=21551
http://www.automodelisme.com/index.p...1&limitstart=0
BTW. ofna's version is also a JL line.
http://www.nitrohouse.com/catalog/pr...ducts_id=21551
http://www.automodelisme.com/index.p...1&limitstart=0
BTW. ofna's version is also a JL line.
#20
Yeah I think Roelof said it was a Force in another thread.
As for break in, I haven't run one of these motors but most of the newer super tight motors wont loosen up for a full gallon.
As for break in, I haven't run one of these motors but most of the newer super tight motors wont loosen up for a full gallon.
#21
Hey guys check this out. it seems that Ofna's Force engine line and this RB K9 may be the same motor. please compare the two. Very striking resemblance. If these 2 are the same, then we now know who and what company made the K9.
http://www.nitrohouse.com/catalog/pr...ducts_id=21551
http://www.automodelisme.com/index.p...1&limitstart=0
BTW. ofna's version is also a JL line.
http://www.nitrohouse.com/catalog/pr...ducts_id=21551
http://www.automodelisme.com/index.p...1&limitstart=0
BTW. ofna's version is also a JL line.
$174.... that is a really good price, I am eager to modify one and see what kind of potential it has in it.... I also like how it uses a hard billet piston instead of the cast pistons from most Taiwanese engines...
#22
Tech Elite
iTrader: (23)
Has anyone tried the RB Concept Touring Junior 9 On-Road Competition Engine (Turbo Plug)? (Or) At least know what it is comparable to power wise? Just also looking at a warm up engine for next year.
http://www.amainhobbies.com/product_...ine-Turbo-Plug
http://www.amainhobbies.com/product_...ine-Turbo-Plug
#23
It doesn't matter to me what country the K9 is made in, or what company has a similar looking version. Alls I know is that this thing hauls the mail in double-time. I've run RBs for 13 years, and after 3 gallons on my K9 I see no reduction in quality or workmanship on this mill. It still sticks on top, has exceptional compression, horsepower, idle, and run-time.
RB may have saved the consumer $100 by using less expensive labor and/or bearings, but who cares. The internal turbulence that todays over-the-top-output mills create will destroy any main bearing in about 5 gallons or less, if you are competing at a high level. Therefore, as I would do with any mill, I plan to replace with TKO ceramics before next season gets into full swing.
It seems like the people who have negative things to say about the K9, don't even have one.
Anyone having trouble keeping a K9 running is definitely a noob, but I would be glad to help them. I haven't had to re-tune mine in 4 races, at 3 different venues. I TQ'd three and won two of those races, against OS Speeds, GRPs, and Plus4s. The K9 totally removes engine trouble from the successful-race equation for me. Now I can focus on the chassis and driving.
plugs: RB5T or 4T when cold out, or OD97T
pipes: 053, JP3, rb2045 w/ round header
RB may have saved the consumer $100 by using less expensive labor and/or bearings, but who cares. The internal turbulence that todays over-the-top-output mills create will destroy any main bearing in about 5 gallons or less, if you are competing at a high level. Therefore, as I would do with any mill, I plan to replace with TKO ceramics before next season gets into full swing.
It seems like the people who have negative things to say about the K9, don't even have one.
Anyone having trouble keeping a K9 running is definitely a noob, but I would be glad to help them. I haven't had to re-tune mine in 4 races, at 3 different venues. I TQ'd three and won two of those races, against OS Speeds, GRPs, and Plus4s. The K9 totally removes engine trouble from the successful-race equation for me. Now I can focus on the chassis and driving.
plugs: RB5T or 4T when cold out, or OD97T
pipes: 053, JP3, rb2045 w/ round header
#24
k9 head shims
I run a k9 (3 gallons)motor sounds like a dirtbike firing up.motor has a lot of power and just bought another one today,but i do have a question,in the manual that comes with the motor it tells you to add a 0.1 shim if you run 30% nitro through it and it also says that it comes from the factory with 2 headshims but on both of my motors they have 4 shims,does anybody know anything about that?
#25
i also have the engine and i am running 30% and have not added or removed any shims. i have removed one but the engine was not running very well when start up. by putting again one shim back(total of 4 again) the engine was better on start up. my suggestion would be to run the engine as it is with the 30%
#26
Has anyone tried the RB Concept Touring Junior 9 On-Road Competition Engine (Turbo Plug)? (Or) At least know what it is comparable to power wise? Just also looking at a warm up engine for next year.
http://www.amainhobbies.com/product_...ine-Turbo-Plug
http://www.amainhobbies.com/product_...ine-Turbo-Plug
#27
Tech Elite
iTrader: (23)
http://www.amainhobbies.com/product_...Pipe-Combo-Set
#28
Tech Master
#29
Tech Regular
Hi Guys!
I have a K9 which I seem to be having a little problem with overheating. perhaps you guys might have some insight on it.
I am running Byrons 25% nitro and have about probably 2 gallons in it so far.
Currently I have tuned it and it is running at 125 to 130 degrees C still with lots of smoke but not enough punch at the low and mid range. after running it for awhile the carb starts to get heated up to about 65 degrees C and starts to have flame outs with difficulty restarting.
I am in a dilemma as I can lean it more to get more punch but at a risk of running at higher temps 140+, and there is also the issue of overheating carb.
I believe that there is potential in the engine but how can I tap it without flaming out and overheating.
Been having this problem for awhile now, so much so that I have not dared to race it due to reliability fears.
Perhaps I am doing something wrong, appreciate any help I can get from the guys running it too.
Cheers!
Dan
I have a K9 which I seem to be having a little problem with overheating. perhaps you guys might have some insight on it.
I am running Byrons 25% nitro and have about probably 2 gallons in it so far.
Currently I have tuned it and it is running at 125 to 130 degrees C still with lots of smoke but not enough punch at the low and mid range. after running it for awhile the carb starts to get heated up to about 65 degrees C and starts to have flame outs with difficulty restarting.
I am in a dilemma as I can lean it more to get more punch but at a risk of running at higher temps 140+, and there is also the issue of overheating carb.
I believe that there is potential in the engine but how can I tap it without flaming out and overheating.
Been having this problem for awhile now, so much so that I have not dared to race it due to reliability fears.
Perhaps I am doing something wrong, appreciate any help I can get from the guys running it too.
Cheers!
Dan
#30
Tech Master
iTrader: (19)
Hi Guys!
I have a K9 which I seem to be having a little problem with overheating. perhaps you guys might have some insight on it.
I am running Byrons 25% nitro and have about probably 2 gallons in it so far.
Currently I have tuned it and it is running at 125 to 130 degrees C still with lots of smoke but not enough punch at the low and mid range. after running it for awhile the carb starts to get heated up to about 65 degrees C and starts to have flame outs with difficulty restarting.
I am in a dilemma as I can lean it more to get more punch but at a risk of running at higher temps 140+, and there is also the issue of overheating carb.
I believe that there is potential in the engine but how can I tap it without flaming out and overheating.
Been having this problem for awhile now, so much so that I have not dared to race it due to reliability fears.
Perhaps I am doing something wrong, appreciate any help I can get from the guys running it too.
Cheers!
Dan
I have a K9 which I seem to be having a little problem with overheating. perhaps you guys might have some insight on it.
I am running Byrons 25% nitro and have about probably 2 gallons in it so far.
Currently I have tuned it and it is running at 125 to 130 degrees C still with lots of smoke but not enough punch at the low and mid range. after running it for awhile the carb starts to get heated up to about 65 degrees C and starts to have flame outs with difficulty restarting.
I am in a dilemma as I can lean it more to get more punch but at a risk of running at higher temps 140+, and there is also the issue of overheating carb.
I believe that there is potential in the engine but how can I tap it without flaming out and overheating.
Been having this problem for awhile now, so much so that I have not dared to race it due to reliability fears.
Perhaps I am doing something wrong, appreciate any help I can get from the guys running it too.
Cheers!
Dan
If the idle is coming in high then settles low, is a rich LSN masking a high idle
and a wide idle gap. Making you have to run the motor lean to make power
Is Killer 10 the same as a killer 9. and is a Classico 10 faster or better . Also is the Classico 10 made in Italy
Last edited by vivo quevas; 05-21-2010 at 10:33 PM.