R/C Tech Forums - RB Concept Engine Thread..

The B11 should be a little more mellow compared to the B10. The timing is not quite as aggressive and and will get better fuel economy. I will get mine this week I hope and be able to start the break-in over the weekend.

Lochii

02-28-2011 07:22 AM

I won 2 brand new piston/sleeve sets on ebay last night, 15 UK pounds each, hah! A S3 and S5 set. I read they both fit in the s7 case, and my dad happens to have one of those. I guess I'll try the S5 first, for my truggy.

aznitronut

02-28-2011 07:39 AM

Quote:

Originally Posted by itsAUG (Post 8717950)

Anyone have problems starting a gallon old ws7? I just got a used one and the pinch is so tight at tdc that I have trouble getting it "unstuck" with a pair of padded vice grips on the flywheel. I have it preheated and I backed the plug out a little and it still locks at tdc and burns up my starter box wheel. Any input would be appreciated.

You may also try to add a 1mm or 2mm head shim under the head button, that wil releive some of the pinch/compression, to make it easier to turn over the engine, after you have put more fuel through the engine, it will.get easier to turn over, you can remove the shim you.installed.

Chris Peralta

02-28-2011 11:10 AM

Quote:

Originally Posted by Lochii (Post 8722332)

Those will fit any of the S7, WS7, or WS9's as well as the S5 and S3's they were made for. They are all square stroke engines tho so your not going to have a ton of bottom end right off the bat, you will have to play around with gearing and clutch setup to get the bottom end just right.

speed6

03-03-2011 03:49 AM

RB C10

Dear all,

can you confirm that the C10 comes with cermaic bearings as i just broke in this engine dismantled it to check that everything is fine and the rear bearings seems like a normal steel bearing, is this right?

Thanks

Grinder

03-03-2011 04:20 AM

Quote:

Originally Posted by speed6 (Post 8739540)

It comes from the factory with steel bearings front, and rear.

rpmhobbies

03-03-2011 10:30 PM

1997-2007 10th Anniversary RB??

I posted in the wanted section but thought that it may be helpful here also...I am looking for just the case (or whole engine)...had a head screw break off in it!!!...It is the 1997-2007 RB Concepts 10th Anniversary engine...Please help if you have one or have a buddy???!!! Thank you.

jubibamse

03-04-2011 08:38 AM

Anyone who knows if the rb usa edition is taiwan made or nova made?

Chris Peralta

03-04-2011 09:03 AM

Quote:

Originally Posted by jubibamse (Post 8746079)

Anyone who knows if the rb usa edition is taiwan made or nova made?

Can you post a link? There is a C6 USA that is one of my favorite engines. There is also a USA combo they had recently had that was an S3 USA combo, I also think there was a USA version of the S5. All of them are Nova produced engines tho. The K10/K11 and the Sport10/Sport11 are the Taiwan engines.

Rick57

03-05-2011 06:03 AM

Anybody have a C6 USA they might be willing to sell? Or know anybody? :)

rc racer 103

03-06-2011 11:45 AM

what pipe would you run on a w7 worlds ? thank you !

aznitronut

03-06-2011 12:20 PM

Quote:

Originally Posted by rc racer 103 (Post 8755864)

what pipe would you run on a w7 worlds ? thank you !

RB 2045/192 header

rc racer 103

03-06-2011 05:46 PM

Quote:

Originally Posted by aznitronut (Post 8755994)

RB 2045/192 header

thank you !!

aznitronut

03-06-2011 06:03 PM

Anytime.

Chris Peralta

03-07-2011 07:50 AM

Quote:

Originally Posted by Rick57 (Post 8750290)

Anybody have a C6 USA they might be willing to sell? Or know anybody? :)

That is not an easy engine to find!!! If you do find one make sure you grab it up, they were a limited production from about 3 years ago so it could be tough.

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