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-   -   RB Concept Engine Thread.. (https://www.rctech.net/forum/offroad-nitro-engine-forum/251409-rb-concept-engine-thread.html)

aaron joy 12-22-2009 12:39 AM

Im not sure of the number of turns but I would guess about two turns on the bottom in and about one to one and a half on top.
Here are pics:
http://img.photobucket.com/albums/v6...cture012-1.jpg
http://img.photobucket.com/albums/v6...ure013-1-1.jpg

CHOAS 12-22-2009 02:44 AM

Yo Aaron,Clockwork Engines Team Driver ? Is this a new sponsor? :sneaky:

aaron joy 12-22-2009 08:53 AM

Yes Sir!!! Im going to have a whole lot of pep in my step this year!!:sneaky:

Big Bell 12-22-2009 10:12 AM

Big Bell
 
Thanks, Aaron I think I am getting pretty close to those settings.

Allen Bell

aaron joy 12-22-2009 11:48 AM

No problem Allen. I don't know if you have read the JL .21 thread, but you can pull a shim out of the Killer 9 (JL .21 & Killer 9 share the same internals)since it is so overshimmed from the factory. It is coming shimmed at .8 -.9 with four shims, after break in you might want to pull a shim out to lower compression and make a little more power. I will be running my Killer less one shim this weekend at a well heated indoor track to see how it goes.

JonnyW 12-22-2009 06:01 PM

Backplate?
 
Anybody got a spare backplate/parts motor they can sell me? I need one for a LG2 C6. I think most of the late model plates will work WS7,S7,S5 ect. Thanks

aznitronut 12-22-2009 07:48 PM


Originally Posted by JonnyW (Post 6753594)
Anybody got a spare backplate/parts motor they can sell me? I need one for a LG2 C6. I think most of the late model plates will work WS7,S7,S5 ect. Thanks

YOU HAVE TO USE THE LG2 C6 ONLY, THATS THE ONLY ONE DESIGNED FOR THAT ENGINE, THE WS7 HAS IT'S OWN ALSO, THEY ARE NOT THE SAME.

salvaticustomjs 12-22-2009 08:24 PM

Just replaced my 8 gallon ws7 with a killer 9....just got thru breaking it in...can't wait to feel the power

aaron joy 12-22-2009 08:47 PM


Originally Posted by JonnyW (Post 6753594)
Anybody got a spare backplate/parts motor they can sell me? I need one for a LG2 C6. I think most of the late model plates will work WS7,S7,S5 ect. Thanks

I have one I can sell you let me find it and see what condition it is in.

It doesn't have to be a L2G. You can use a C5 or C6, not sure but I think the C4 is the same also.

Big Bell 12-22-2009 10:52 PM

Big Bell
 
Aaron,

The instructions said to add a shim if running 30% fuel. I added a .1 shim prior to break-in. So I need to take that shim out and one more stock shim, right?

Allen Bell

aaron joy 12-22-2009 11:16 PM

Yes, I was told you can safely pull one shim and be ok with 30%. The engine is set with a very low compression ratio from the factory. If you don't want to risk it I will be trying it this weekend and will post back what I find.

Chris Peralta 12-23-2009 07:22 AM

Pulling shims out of an engine can really help the performance as well as steady out an erratic idle. It is VERY important that after pulling shims out you remove the glow plug after a run and check the top of your piston. If you see any tiny pit marks on the top of the piston you need to put that shim back, even if that's the best your engine has ever ran you need to put it back. That is a sure sign of pre-detonation and continued use like that will eventually kill your engine.

mikesd1980 12-23-2009 07:51 AM


Originally Posted by aaron joy (Post 6752240)
No problem Allen. I don't know if you have read the JL .21 thread, but you can pull a shim out of the Killer 9 (JL .21 & Killer 9 share the same internals)since it is so overshimmed from the factory. It is coming shimmed at .8 -.9 with four shims, after break in you might want to pull a shim out to lower compression and make a little more power. I will be running my Killer less one shim this weekend at a well heated indoor track to see how it goes.

Hey Aaron what indoor track are you going to this weekend? Is it Bumps and Jumps? I am looking to get to a indoor track to get some tanks on my Killer 9 before Motorama. You are actually the reason I brought one. I saw you run at Hobbyhut with it and it was ripping.

aaron joy 12-23-2009 10:04 AM

Thanks Mike! Yup Bumps and Jumps, as long as the weather holds out and we don't get anymore snow. I am riding up with Ofir and Jersey, always a fun time with those two!! I don't think we have talked in person before, if you have any questions I am more then willing to give you a hand.

koreanassasom 12-23-2009 11:13 AM

what classes are they running this weekend any truggies show up?


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