I know the history as well. Been doing this over 15 yrs.

To bad they havn't had stability.

Very popular in Germany.

The new BX series is also very expensive.

Though I think the K10 for ex. is a good engine, there just IS this mentality that engines have to be Italian, so I think RB having engines produced in Asia damaged their image a bit, right or wrong. I previously had written them off because they were so expensive, but then they came out with the Asian-built stuff, which was just more expensive than the Asian-branded same thing. Last year though they started selling affordable Italian engines like the Fire 11, which is why I got one. Seems kind of like all the Asian engines were their "New Coke", and now they're getting back to their roots or whatever..

(I've run with a few K series engines before though, and they were plenty good..)

Hi i have a question i picked up a xray buggy as i wanted to try buggy this year and the guy threw in a rb limited edition motor with a rb 2087 pipe combo baisicly for free just wondering if this motor is any good and if that is a good combo. He said motor has 3 gallons on it and judging on how clean the motor is with no scratches to the head and inside looks good i would say thats close to what it has . I just know little about rb motors any info would be great should i run it or sell it. thanks
PS the 2 tracks i run on are larger in size if that helps

Hey Chris, I'm going to try the 2087 pipe with the 204 header on my C6, my carb settings now are HSN 2 1/2 out, my LSN 5 out with the 2045/192 pipe. I know that I will need to out both needles, would you know approximately how much on each? I want to get a more linear throttle response, a little less bottom as the 2045/192.

It's a good quality engine, it's not going to be as fast as the B10/11 or C6 engines. It may not have the top end you want for a real big track but it's wroth a try. It might work perfect for ya.

So, if you feel the 2045/192 combo has a bit too much bottom end the 2087/204 is going to be even more bottom end. RB listed the the 2087 as having more torque than the 2045. For me on my tracks they always felt about the same unless used with the 204 header. That 204 header gave the 2087 a lot more grunt!!

As for the needles I do not know how much you will need to lean it out. Your best bet would be start with it like it is and run it on the track. I would guess less than 1/4 of a turn on either needle, but you guys have all that extra oxygen down there in the desert My needle settings would probably be too lean for your engine to even start down there.

Okay, thanks Chris, is the 2087/204 set up better for fuel economy? Than the 2045/192.

I would say they are so close it would be hard to tell the difference. I think I had like 13 seconds more run time with the 2087, but I tested it with the 198 header because thats what was on the 2045 so I was trying to make it even.

Yes, that masked sense, thanks, I will see how it goes. The last time.I tried the 2087/198, the bottom was sluggish, I thought, maybe the 2087/204 would be best for the WS7III engine.

Well, I don't like the 2087/198/204, just doesn't have the bottom or power of the 2045/198, on the C6, the 204 header did give it more bottom, than the 198 header, it seem to run hotter with the 2087, than the 2045, I guess I wont fix it if it ain't broken. Thanks.anyway Chris

Chris, I was looking for a new c6 piston and sleeve but everyone seems to be out, anyways I found one from an old c5 1135-53 same bore and stroke that has the exact same porting as my original c6 sleeve except the exhaust port seems to be alot bigger, my question is what should I expect powerwise from it same, more, less, better or worse fuel mileage ? Price was too good to pass up so no matter what will most likely be happy but was just curious ?

You should have more power, and possibly a little less fuel economy. I think you will like it!! Those old C5 engines were awesome I always thought. I still have a C6USA which has a much larger exhaust port like what you just got and it is my favorite engine!!

ok just picked up a k9 for a spare engine came with a 063 pipe. been looking for info but cant seem to find much. is the 063 pipe good match? is this motor a good truggy motor bottom end wise?

I have personally never ran the K series of engines. They are basically the same as the OFNA JL from what I understand. I have heard of a number of people running them in trucks but not sure on pipes honestly. You may want to look for the OFNA JL thread to see what they were all using or ask over in the Clockwork Racing thread as they used to do a lot of work with the JL.

ok thanks chris