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

aznitronut 01-24-2012 06:15 AM


Originally Posted by Chris Peralta (Post 10218750)
So what looks like a turbo cut on the head button will face the exhaust port when installed. Good find man!!!! Where did you score a USA crank? Reno tracked one down for me last year when he was in Texas so I have that one and the one in my original engine, but neithe rone is new anymore. I knew I should have bought a few more of those engines when they were available.

There is a guy on ebay that used to part out RB WS7II and C6 engines a couple years ago, at that time I picked up a case, and the original box it came in, then about 3the months ago he posted the crank, got fairly cheap, I think less than 50 bucks, the other day I saw he posted the piston and sleeve, and the head button, I tried to get him to sell it out right, wouldn't do it, already had bids on it, so I wound up getting it for 120 shipped for both. Already have a carb, and new conrod too.

Chris Peralta 01-24-2012 06:22 AM


Originally Posted by aznitronut (Post 10218819)
There is a guy on ebay that used to part out RB WS7II and C6 engines a couple years ago, at that time I picked up a case, and the original box it came in, then about 3the months ago he posted the crank, got fairly cheap, I think less than 50 bucks, the other day I saw he posted the piston and sleeve, and the head button, I tried to get him to sell it out right, wouldn't do it, already had bids on it, so I wound up getting it for 120 shipped for both. Already have a carb, and new conrod too.


Sweet!! Good for you man, good find! :nod: Even at my altitude that engine throws my truggy around like nobodys business, I bet with the cool desert air it's gona be a monster.

Herrsavage 01-24-2012 09:47 AM

So they've already come out with a 2nd version ol the Blast..

http://www.rmv-deutschland.de/fundgr...d-edition.html

So what do you make of it? Lemme' guess.. F11 killer.. :rolleyes: :p

aznitronut 01-24-2012 12:06 PM

CHRIS, What do you think is the best pipe combo for the C6USA engine? 2045/192 or 2087198? Or have you seen or tried theNova Rossi 2096 pipe? Its a copy of the 2045, but heavy duty.

Lille-bror 01-24-2012 12:09 PM


Originally Posted by aznitronut (Post 10220377)
Or have you seen or tried theNova Rossi 2096 pipe? Its a copy of the 2045, but heavy duty.

Are you sure?!...;)

Chris Peralta 01-24-2012 12:13 PM


Originally Posted by aznitronut (Post 10220377)
CHRIS, What do you think is the best pipe combo for the C6USA engine? 2045/192 or 2087198? Or have you seen or tried theNova Rossi 2096 pipe? Its a copy of the 2045, but heavy duty.

Personally I ran the 2087 on it more last year than the 2045. Fuel mileage seemed the same but it just felt like it had more power all over the RPM range. I also ran a 2058 on it and that pipe will make it scream!!!! You will lose some fuel economy tho.

aznitronut 01-24-2012 12:15 PM


Originally Posted by Lille-bror (Post 10220388)
Are you sure?!...;)

I put them side ny side, perfect match. Also, Monty Houston agreed .

aznitronut 01-24-2012 12:18 PM

Thanks, Chris, I don't have the 2058, and don't really want to buy another pipe at this time, thanks for the info, I think fuel economy is a better deal now.

Chris Peralta 01-24-2012 12:27 PM


Originally Posted by Herrsavage (Post 10219766)
So they've already come out with a 2nd version ol the Blast..

http://www.rmv-deutschland.de/fundgr...d-edition.html

So what do you make of it? Lemme' guess.. F11 killer.. :rolleyes: :p


Nothing F11 about it, F11 is a long stroke engine. This V2 you posted is still a square stroke WS7 revival. Only difference between V1 and V2 that you posted is the V2 has the exact same crankshaft that the WS9 came with so it will have the RB coating on the crankpin and be the same in crank timing. The V1 has the same crank as the Limited Ed 1 engine they released in 2009. If you were going to get one I would go for the V2 as thats going to be just like the WS9 was.

houston 01-24-2012 01:40 PM


Originally Posted by aznitronut (Post 10220426)
I put them side ny side, perfect match. Also, Monty Houston agreed .

Exact copy? Maybe
It runs very similar , great pipe

Chris Peralta 01-24-2012 02:12 PM

If it runs very similar I found that I prefer the 2087 with the long header over the 2045 and short header on the RB's. But thats for my track conditions/altitude/clutch/car so it may be terrible for someone else. The 2045 has been around since before Rody left and is always a good pipe to use IMO. Especially if your looking for fuel economy and drive-ability.

erc55 01-25-2012 01:01 AM


Originally Posted by Herrsavage (Post 10218010)
I've got the 1/7 DM-1, which is probably quite a bit heavier than your IGT2.. I've tried a couple .21's in it, and I just feel like due to the weight and gearing, it needs a .28 to muscle it up to top speed sooner. I have a new Fire 11 sitting here, and have considered trying it in the DM-1. But even as powerful as the Fire 11 is meant to be, I still wonder if it would have the mid-range grunt to push my DM-1 the way it needs to be..

the midrange grunt in the rt10 is really strong. maybe for a heavier car like the dm1 the .28 is the best choice really.

erc55 01-25-2012 01:08 AM


Originally Posted by Herrsavage (Post 10218246)
Really thinking about getting this RT10.. Couple more questions:

1.) Is it a PIA to break-in - i.e., tons of pinch, needs a gallon, etc?
2.) What pipe do you run? I don't want to buy a new pipe. Probably my best bet from my existing pipes would be a NR 9901/short header. I also have a 2063, JP-4, and 053... I also have the 2087 from the Fire 11 Combo but am planning to sell it new and recoup some money.
3.) Plug? Same deal with needing the hotter plug as with the F11? I see it's a standard plug engine. Would OS plugs work?

Thanks..

i found it very easy to break in. it started easy the first time, just let it sit on idle for two tank and ran the next 7 tanks with the engine rich. it has a lot of pinch but not too much as to always get stuck. the tuning is also very easy on this engine.

i am running the RB THG2 pipe for this engine. it is made especifically for it. maybe the 9901 would be a good pipe for it, but not sure.

i am using the plug that came with the engine. i think it is a #6. i use 30% nitro. os plug is shorter so it wont work.

arm2storm 01-25-2012 11:38 PM

Can someone help me out. I've been running an old WS7III and just love it. I put ceramic bearings and just runs great. But I know it's at it's peak and sooner or later I'm gonna have to replace it. I haven't been keeping up with RB for a while. The question is... What new model replaced it but with better fuel economy.

Thnx

Chris Peralta 01-26-2012 04:22 AM


Originally Posted by arm2storm (Post 10229062)
Can someone help me out. I've been running an old WS7III and just love it. I put ceramic bearings and just runs great. But I know it's at it's peak and sooner or later I'm gonna have to replace it. I haven't been keeping up with RB for a while. The question is... What new model replaced it but with better fuel economy.

Thnx

So it looks as if there will be an engine coming out real soon called The Blast. That engine uses the same parts as the WS9 which is much like the WS7III you have but it has the latest carb and the MES exhaust so the fuel mileage should be better. As far as smooth power the X11 is similar in power but it will not rev as high as the WS7. There is also the F11 but that has more overall power and should rev just as high but will be harder to control in a buggy.


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