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

buggydad 02-05-2009 05:50 PM


Originally Posted by bjr48 (Post 5391568)
I posted this in the On-road Exclusive Engine section this morning thinking I was on the off-road side. Both threads are pretty much dead so maybe this will start one of them off keeping track of what 2009 is bringing for RB...

--------------------------------------------------------------------------------

http://rcspecial.com/news/?p=14715#more-14715


I'd like to keep track of what RB is doing this year. I was going to get an S5 for the 2009 season but since OS fixed my VG under warranty and I took a paycut at my job I'll be lucky to just break it in and buy fuel this season. I still want to keep track of RB as they will 99% be likely to be my next engine whenever that may be 2009, 2010?
What's the scoop on the new engines?

I can only find the pictures I posted, no news. Is it possible that they are a 9 port engine?! I'm guessing that may just as likely be a year 2009 designation (.9 in the name of the engine). The 3 offroad engines are the B.9, WS.9, and S.9 if you look at the business cards in front of each.

Wow when are these babies coming out i was about to buy 2 ws73 next week but i will holod off if these are coming soon??? And whats going on with the US Spec C ?

csdonnie 02-05-2009 10:05 PM

anyone here have a used ws7III case? or a bad motor with a good case?

pm me or send email to [email protected]
thanks

Zerodefect 02-06-2009 07:31 AM

TRUE OR FALSE with RB's:

S3 S5 S7 WS7 : all have same crankcase, bearings, conrod.

S5 S7 WS7: have the same crankshaft, the WS7 has a hardcoating

WS7 turbo head: fits the S engines

RB & Novarosi plugs are the same


If parts are interchangeable then we can rebuild boken RB's with S5's and S3's for cheap.

markr04 02-06-2009 07:48 AM

I have a C5. It's not doing it for me. I don't have anything against RB Concepts and it's not a terrible engine... it's just not worth anywhere near the price IMO. As soon as it goes bad, I'm going to replace it with a Dynamite or Go engine around the $180-$200 mark.

I realize I just pooped in this thread and I'll get my nose rubbed in it, but that's okay. It's my experience and opinion about my C5, and it could be a fluke engine.

big_klemo 02-06-2009 09:14 AM

I have a modded c6 that makes sick power in my jammin buggy. I run a jp-4 pipe on it and it seems awesome. I tried a dynamite 086 and it didn't seem to work aswell as the jp-4. I have read in the past that the rb2045 kills some of the power that the c6 makes is this true. I have one and never tried it, I have no way to test it at this time of year because we have a lot of snow outside and I am heading to a indoor race at the end of the month and was wanting some input on the rb2045 pipe and if you have tried the jp-4 and what worked better the jp-4 or the rb2045
thanks in advance

markr04 02-06-2009 09:18 AM


Originally Posted by big_klemo (Post 5396085)
I have a modded c6 that makes sick power in my jammin buggy. I run a jp-4 pipe on it and it seems awesome. I tried a dynamite 086 and it didn't seem to work aswell as the jp-4. I have read in the past that the rb2045 kills some of the power that the c6 makes is this true. I have one and never tried it, I have no way to test it at this time of year because we have a lot of snow outside and I am heading to a indoor race at the end of the month and was wanting some input on the rb2045 pipe and if you have tried the jp-4 and what worked better the jp-4 or the rb2045
thanks in advance

I had a similar question about my C5 and a pipe. I ended up at the RB Concepts forum where I saw that the 086 is the pipe of choice for the C5.

You might look in the RB forum and find your question answered.

Charles Godwin 02-06-2009 09:52 AM

Have never run the JP-4 pipe but i have run the RB 2045 pipe with the C6 and WS7. To me it just makes the engines just that little more driveable. On the C6 i have (which i am still running in) it has mega drive out of the corners (almost to much and this is on dry high grip astro!!!). It does have a nice linear feel to it throughout the powerband which is good. I plan on running the RB 3001 pipe to see if it can make it any smoother (i like smooth :sneaky:) and possibly get more run-time (i get 10mins easy now on the WS7 and it isn't leaned out)

infanterene 02-06-2009 10:29 AM

My track has big jumps with short run ups. With the 2045 I could not always clear them but with the jp4 it's no problem. I get 12 minutes with the 2045 and 10 with the jp4.

tony montana 02-06-2009 04:28 PM

I agree. I had the 2045 on my s7 and I couldnt make the coming out of corner jumps. I have since put a jp4 on it but I havent raced with it yet. Another thing with the 2045 is I didnt get very good runtime. Only around 6 minutes. I have the standard s7 l2g and wondering if I can out the turbo button on it?

markfanelli 02-06-2009 06:20 PM

KC, I've used the 2045 with my S7 since day one and it has plenty of power all around. 8min runtime was never a problem. But, my S7 has the turbo head and yes you could switch yours over if you wanted to.

SPARTAN300gt 02-07-2009 05:06 AM

so ive got 2 rc8ts for 09 but need engines, ive always been partial to os eng but i think i may atray this year, these rb engines just look so smooth on the track, what would be comparable to a v-spec?? and what pipe would you guys recommend?? thanks for the help fellas:):):)

markfanelli 02-07-2009 05:42 AM


Originally Posted by SPARTAN300gt (Post 5399413)
so ive got 2 rc8ts for 09 but need engines, ive always been partial to os eng but i think i may atray this year, these rb engines just look so smooth on the track, what would be comparable to a v-spec?? and what pipe would you guys recommend?? thanks for the help fellas:):):)

C6BB7T with the 2045 pipe/ long header

SPARTAN300gt 02-07-2009 06:00 AM


Originally Posted by markfanelli (Post 5399471)
C6BB7T with the 2045 pipe/ long header

:eek: thats the one ive been looking at, so at least im lookin in the right direction:cool:

tony montana 02-07-2009 12:56 PM

cool thanks Mark. Cant wait for motorama. You gonna be getting yourself a mbx6t soon?

markfanelli 02-07-2009 03:45 PM


Originally Posted by tony montana (Post 5400482)
cool thanks Mark. Cant wait for motorama. You gonna be getting yourself a mbx6t soon?

Well I dont know about soon. It still may be a while for the release. I just rebuilt my 5T from the chassis up almost completly with the addition of X6 shocks so I'll be good for this season. I just had way to many spare parts around so I figured I would rebuild instead of buying new.

tony montana 02-07-2009 04:22 PM

Mark, what setup are you gonna run on the mbx6 for motorama?

Miller_Time 02-10-2009 12:01 PM

Anyone have any details on the "9" series of engines from RB?

Also, I posted this on the other RB thread in Onroad Nitro Engines but not sure where I would get better responses.. so I'll ask here too:


Originally Posted by Miller_Time (Post 5410925)
I'm looking to get a new engine for this year in my 8ight 2.0 buggy. I'm trying to decide between the S5, S7, or WS7. I have an RB 2045 pipe and 192 header that I would like to use, but I would buy a new pipe if the engine choice called for it.

I'm still fairly new to nitro so I'm looking for durability and reliability first and second, performance would be third on the list. Most of the tracks I'll be racing on are medium to large - for example The Farm 2 is a few miles from my home and will be open for club races this year. That of course is the largest track I'll be racing on, with the others going down to about half that size.

I would really like more low end which makes me look to the S5, but I wonder if that will have the pull on these bigger tracks. Better fuel milage would be good too, I'm not a great driver so if I can make up some time by getting one less pit stop I could use that help. :nod:

My first nitro engine was an S7 (older model) that I bought used with about 3 gallons on it. I put on another 4 without hardly ever touching the tune and that durability and ease of tune is what I loved most.

So I guess what I'm asking is what model do you think is best for me? The price difference between the three is neglible to me, although cheaper is always better. What pipe and plug combo works with each model would be great information too!

Side question - I've heard ceramic bearings are a good improvement. I was considering swapping both bearings for TKO ceramics after about a gallon of break in, any pros or cons to that?

THANKS!


layedbackguy 02-10-2009 05:33 PM

Hey guys im thinking about getting a turbo button for my standard c6. Is there some kind of mod that needs to be done, or just pop it on. Also will i need to shim it different. I run 30%. What will i benifit for doing this?

BIG RE 02-10-2009 08:59 PM

what do you guys think is the best rear bearing for the ws7III, everything I have tried sucked, the only other one I see is a newer boca with 11 balls instead of 9

aaron joy 02-10-2009 10:00 PM


Originally Posted by BIG RE (Post 5416199)
what do you guys think is the best rear bearing for the ws7III, everything I have tried sucked, the only other one I see is a newer boca with 11 balls instead of 9

You hit the nail on the head my friend try Boca Bearing's new MX Engine bearings they are top notch. Here is the link for ya:
http://www.bocabearings.com/main1.as...n=*ENK-013C-MX

aaron joy 02-10-2009 10:12 PM


Originally Posted by layedbackguy (Post 5415134)
Hey guys im thinking about getting a turbo button for my standard c6. Is there some kind of mod that needs to be done, or just pop it on. Also will i need to shim it different. I run 30%. What will i benifit for doing this?

Whats up G..... There is nothing to it you need part number# 01082 for the head button and I would shim it with one additional .1 shim to help prevent detonation with the 30% nitro. I will see you at Motorama and we can talk more.

shipwama 02-11-2009 04:16 AM

Hello, im getting a rb s5, it was broken in on 20% it is the l2g and it has a standard plug, if i am going to run it on 30% do i need to shim the head?

BIG RE 02-11-2009 10:10 AM


Originally Posted by aaron joy (Post 5416420)
You hit the nail on the head my friend try Boca Bearing's new MX Engine bearings they are top notch. Here is the link for ya:
http://www.bocabearings.com/main1.as...n=*ENK-013C-MX

sweet, thanks

Akhor 02-11-2009 11:30 AM

I have a RB S3 and was thinking about running it with a JP 3.

Or would a 086 be a better option?

aaron joy 02-11-2009 09:08 PM


Originally Posted by BIG RE (Post 5418201)
sweet, thanks

You are welcome!

Akhor 02-12-2009 08:39 AM

What's the optimal temp for a RB S3?

Do they run around the same temps (230) as other engines?

cbaranski 02-12-2009 10:38 AM

I run a C6BB7T with the 2045 pipe and 192 header. Byrons Gen2 30% with a med plug and my RC8T is totally off the hook. With my temps at 190-210.

Chuck

Akhor 02-12-2009 11:14 AM


Originally Posted by cbaranski (Post 5422708)
I run a C6BB7T with the 2045 pipe and 192 header. Byrons Gen2 30% with a med plug and my RC8T is totally off the hook. With my temps at 190-210.

Chuck

Awesome thanks.

I know I have to tune for power, but I like to have a rough estimate of what the engine temp will be.

crawldad91 02-12-2009 12:09 PM


Originally Posted by Akhor (Post 5418454)
I have a RB S3 and was thinking about running it with a JP 3.

Or would a 086 be a better option?

im wondering the same thing as well........... i borrowed an s3 from a friend to run this weekend and all i have that is close for this pipe is a jp3! what should expect from this setup?

cbaranski 02-12-2009 04:36 PM

crawldad91, Akhor,
My experiance with all of my RB engine is that use the RB pipe that they suggest for your engine. Basiclly almost all RB engine will want either a 2020 or the 2045 pipe. The JP-1,2,3,4 pipes made the engine run hot. I had a WS7III that would run 260 to make any kind of power, but was concerned with the temp. I went to the 2045 with a 198 header. Engine had all the same power ans got better fuel milage and would run at 190-215. My C6 was the same way. The 2045 is the best combo with any RB engine in my opinion.

Chuck

crawldad91 02-12-2009 05:34 PM

what about say..... a 2041? i use this on my osspeed

cbaranski 02-12-2009 08:21 PM

I dont know, never ran that pipe.

Chuck

crawldad91 02-12-2009 09:49 PM

i might throw it on just to see what it will do

cbaranski 02-13-2009 03:08 AM

Cant hurt to try. Never know, might be a sweet combo.


Chuck

avbrando 02-14-2009 11:12 AM

mixture screw o-rings (c6bbt)
 
can anyone help with installation of new o-rings on the high speed needle? the needle just won't go back in with the new o-rings without destroying them.

bjr48 02-14-2009 01:28 PM


Originally Posted by avbrando (Post 5431049)
can anyone help with installation of new o-rings on the high speed needle? the needle just won't go back in with the new o-rings without destroying them.

You're not trying to put them in dry are you? I would think that might tear them. You want them to fit nice and tight so a little lube would probably be necessary to put them in. Turn the needle very slow too and maybe "help" the o-ring in a little with your extra hand by pushing them into the hole? Don't really know what to use to lube them but probably a little spit couldn't hurt them ;)

rkhess 02-14-2009 10:57 PM


Originally Posted by bjr48 (Post 5431341)
You're not trying to put them in dry are you? I would think that might tear them. You want them to fit nice and tight so a little lube would probably be necessary to put them in. Turn the needle very slow too and maybe "help" the o-ring in a little with your extra hand by pushing them into the hole? Don't really know what to use to lube them but probably a little spit couldn't hurt them ;)


use after run oil to lube o-rings

PinoyCali 02-17-2009 11:13 AM

Hello guys,

Is this engine C6BBT II L2G ok for st-rr and what kind of pipe you using?

Im to get one next month.

Thanks.

bjr48 02-17-2009 11:19 AM


Originally Posted by rkhess (Post 5432953)
use after run oil to lube o-rings

I was afraid to say that one becuase I thought I recalled reading somewhere that injecting after run oil into the carb by the fuel line would cause the o-ring life to be shorter.

You should always inject after run oil down the air intake or glow plug hole :nod:

I guess a little oil one time couldn't hurt much though.

Shooky 02-17-2009 11:45 AM

Will the carburetor pinch bolt from the "S" series fit on the S3. The S3 pinch bolt does the job. I am just looking at a different option. Thanks!


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