RB Concept 323TM engine for the Traxxas Revo and T-Maxx

[StevePond]

http://www.rccaraction.com/pics/rb/rb_TM23.jpg

RB Concept is releasing a new engine in the medium block class for the Traxxas T-Maxx and Revo trucks - the TM 323. This new engine features five-port ABC construction with a booming 17mm bore and 16.64mm stroke. This medium-block mill has all the displacement of many big blocks and more, but it fits into a standard Revo or T-Maxx chassis without the need for extended chassis or expensive conversion kits.
The TM 323 includes the same manufacturing precision that goes into all RC Concept competition engines, which means you're going have a lot more horsepower for your Traxxas truck.
The engine's turbo crankshaft features the same IPS-type crankshaft configuration as the standard Traxxas 2.4 engine, so the clutch and flywheel are a direct fit on the TM323. The two-needle slide carb features a big 8mm bore for lots of air and fuel, which means more horsepower. The engine's backplate is made to fit the standard Traxxas EZ-Start electric starting system, a Traxxas Pull-Starter, or a Rotostart device made for the TRX 2.5 engine.
The TM323 engine comes complete with a custom header, coupler and tuned pipe, all optimized to get maximum horsepower from this already powerful engine, plus it includes an anodized custom engine mount for a direct installation into the T-Maxx or Revo.

Thanks to RCRevolution for the tip!

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This material may not be reproduced in any manner for any reason without the expressed written consent of Air Age Media.

[Fantom 15 gt]

This would be the most powerful drop-in engine for traxxas cars.

[critterracing]

i beleive this is a sirio 23. can anyone confirm this. i asked my distributor but he wasnt to sure. nova rossi doesnt have a mid block so im almost sure its a sirio.

[atm92484_3]

Its hard to say. The casting on the mounting tabs is different from that on the Sirios, but whos to say they didn't change that before production? We'll be able to tell for sure once we get some better block pics. That would be kind of odd if RB went to Sirio to make this one since they've always done Novarossi.

[RCRevolution]

well it doesnt need to be a sirio .23 just because sirio makes .23 doesn't mean other companies can't

[losiguy1090]

Holy forshizle! A 16 mm stroke! 17 MM bore! Words cannot describe how fast this engine is gonna be. Probly the same goes for the price.

[RCRevolution]

i have seen one person say he preordered it for $229, but I can not confrim this

[RCRevolution]

wow, I thought this would get ore atention then its getting.

I guess people just arent interested in a RB engine for the Revo

[asc]

Give it a little time, the O.S. .18 TZ & TM is getting a lot of attention right now. I think good products will sell. They are probably just getting out now.

[tntpower]

This motor will be the one to have to make the REVO a beast!I will wait for comments before ordering to see if the REVO front end will be able to touch the ground ever again! :p

[RCRevolution]

its price seems to be ranging from $229-$249 which isnt too bad compared to the .18TM

[Saboteur]

i beleive this is a sirio 23. can anyone confirm this. i asked my distributor but he wasnt to sure. nova rossi doesnt have a mid block so im almost sure its a sirio.


LET THE CRITICISM BEGIN! :rolleyes: All BSIE member's report and post comments. :D

[rai13]

Aww,man! I thought the OS TM would be a easy decision. Now I gotta wait and see the numbers for this thing. I guess the revo gotta run the 2.5 mill till it goes puff.

rai

[critterracing]

its not criticism its a question. now i know its a fact. Rody made a few changes to the Sirio engine so its not a NR engine. and it does matter to some people who makes the engines.

aldo

[fezzy]

I am with you Aldo, I saw your comment and it got me wondering. Usually I wouldn't think twice, But seeing as it was you who really knows his stuff I looked for myself. And your right, Its a Sirio 23. Its abit sorry to see such a well known company like RB who's engines I love resort to Sirio who's engines I am not keen on.

[Saboteur]

Doesn't matter critter. If you used this ---> "?", then it would be a question. ;). Also, just because it looks like a Sirio .23 doesn't mean it actually is one. Neither will it perform the same way.

[imaxx21]

sirio??

guess im not gettin this RB :mad: :(

[Saboteur]

Don't worry about what anyone else said what it looks like or what it's claims to be. If you want it, get it.

[Spookypoop]

Critter is probably the biggest RB dealer on the east coast....

[fastharry]

Critter is probably the biggest RB dealer on the east coast....

you are kidding,right?.....

[RCMadMatt]

CHA-CHING!!! :eek:

Matt

[repete]

..i have to believe critter on this one..carbs look identical

[RespirologyRC]

I don't care if it's a sirio as long as it performs reliably like an RB. Also I don't believe that RB would risk it's reputation on an engine for the sake of selling one more engine. I like to believe that RB took the time to ensure quality control on these units like their own stuff.

But hey, for the price you really can't beat it. If you were looking for a sirio and just couldn't afford the 300.00+ price tag then this is your answer!:)

[RespirologyRC]

Where can I buy one? Any websites? :confused:

[JOK3R]

direct from Rody Roem himself

----- Original Message -----
From: Rody Roem
To: xxxxxx
Sent: Monday, February 14, 2005 12:10 AM
Subject: RE : RB TM232


Dear xxxxxx,

If your hobbystore is not believing in our products then maybe it is better you ask somewhere else... This new released RB Concept TM323 is made and tested with the same precautions and seriousness as all the engines in our program.

During our testing we have not encountered any serious problems and have had a lot of fun with the REVO in the same time. We did spend some time to find the right solution for the pipe-system and that is why it took a little time to release the TM323 earlier.

Sincerely, RB Products
-----Message d'origine-----
De : xxxxxxx
Envoyé : vendredi 11 février 2005 17:36
À : RB Products
Objet : RB TM232


Hi I am very interested in your new engine for the revo. I have one concern though.

I was going to order mine but someone at the hobby store told me that this
is exactly like the sirio 23. So infact its just a rebadged sirio 23. Please tell me
this is not true as I dont want to believe it. I have owned many other RB's mostly WS7II
and I have nothing but awesome things to say about them.

I just want to know that this is something new from RB and not a rebadged sirio23.

thanks

[ducati777]

1.664 of stroke x 1.335 of bore = 2.22cc...

weird motor size... Thats like a .18 isn't it?

[JOK3R]

Heres it is folks, live and direct, got it today. Siri.... I mean RB23, hahahaha
sirio aint got nothing on this bad boy, nova and RB here all the way.



http://beatyourtruck.com/Gallery/albums/Revo/adi.jpg

http://beatyourtruck.com/Gallery/albums/Revo/adm.jpg

http://beatyourtruck.com/Gallery/albums/Revo/adn.jpg

http://beatyourtruck.com/Gallery/albums/Revo/ado.jpg

http://beatyourtruck.com/Gallery/albums/Revo/adr.jpg

[RespirologyRC]

I want to buy this engine where did you get it? How much? I want one now!!!!

[repete]

that sure is a nice sirio

[thedarkness]

that sure is a nice sirio
It says rb on it dude.Even if you your right that would make the xtm247/mach26/sportwerks26/gs25mt all the same because there the same size and manufaturer.When in fact the porting is differnt on every engine That alone makes it a differnt engine.You make it sound like Rody said to him self one day," Im going to get a bunch of sirios and put rb on them and sell em off for cheaper with a pipe and manifold and mount than the sirio is alone".You dont think they put RD into it and design an engine worth of the RB name, no offence to sirio .23 owners but that ones an over priced stinker.If the case is differnt I figure that alone makes something a differnt engine.

[JOK3R]

hahahaha the sirio debate rages on. I never would own another sirio again. Bought that lupsup 27?? what junk, my WS7II smoked it in my LST.

Anyways heres some more pics of it on the revo. Pinch is soooo tight my pullstart wont retract, once I heated it up with my blow dryer it snapped right back in. This engine is totally sick and off the hizzle for rizzle my nizzles. :D:D:D:D

http://beatyourtruck.com/Gallery/albums/Revo/adv.jpg

http://beatyourtruck.com/Gallery/albums/Revo/adu.jpg

[Saboteur]

SWEET. Keep us updated with the 411. Prove to all these ppl that this "rebadged" sirio ISNT a SIRIO. Either that or they are just jealous they don't have one :p.

[ducati777]

Dang, its beautiful.....

[mp75k2]

Absolutely powerful.......:-)

[fezzy]

I aint jealous, I am packing a proper big block (Mach 26), I aint jealous of no Sirio half pint :D :D :D

[StevePond]

hahahaha the sirio debate rages on. I never would own another sirio again. Bought that lupsup 27?? what junk, my WS7II smoked it in my LST.
Anyways heres some more pics of it on the revo. Pinch is soooo tight my pullstart wont retract, once I heated it up with my blow dryer it snapped right back in. This engine is totally sick and off the hizzle for rizzle my nizzles. :D:D:D:D

Ahhhhh, that engine IS made by Sirio. Never say never. :eek: You're already a proud owner. ;)

[RCRevolution]

joker umm does that thing come with a pullstart? i didnt see it in the box only on the revo

[RCRevolution]

steve, only a head to head race would tell if it is truely a Sirio .23 :p

[RespirologyRC]

I called up ace hobbies and they are selling them for 225.00. I wanted to buy a t-maxx one but they weren't in stock yet, guess I'll have to wait till next week they told me:)

[repete]

yall sound like it being a sirio is a bad thing..Sirio's are made by Star motor..Star also makes the new Collari's which are good..they use the sirio carb..just like the Sirio..i mean RB .23..sure i would never get one..but heck..the motor cant suck that bad

thedarkness..get ur panties out of a wad

[StevePond]

There's nothing wrong with Sirio engines. I've had very good experiences with the Sirio brand and the "real" Collari brand (Sirio based) engines. It's great that Sirio is making the engines for RB. Anyone who thinks it's a bad thing doesn't have enough experience with Sirio engines. They spanked everyone at the last two on-road world championships - it's hard to make the case that there's anything wrong with the Sirio engines when they clean house at these incredibly competitive races.

[thedarkness]

yall sound like it being a sirio is a bad thing..Sirio's are made by Star motor..Star also makes the new Collari's which are good..they use the sirio carb..just like the Sirio..i mean RB .23..sure i would never get one..but heck..the motor cant suck that bad

thedarkness..get ur panties out of a wad
huh? dude All I said was it may be made by sirio but its made to RB specs.Sounds like you are the one with the wadded panties.Im just kidding sorry if I came across agressive.

[Mustang2]

were can i but it and how much?

[redexces]

Ahhhhh, that engine IS made by Sirio. Never say never. :eek: You're already a proud owner. ;)
Over on the Traxxas Revo forum, there's been a raging argument over who makes this motor.

It looks like those who ran out and bought this baby based on the RB label and fiercely denied any connection to Sirio are gonna have to eat some crow....pass them the salt and pepper!

That said, this motor is still gonna have some giddyup, you can bet RB isn't gonna let their rep get sullied by merely re-branding another motor. ;)

[fastharry]

This is some of the letter I recieved back from Rody...

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

----- Original Message -----
From: RB Products
To: Fastharry
Sent: Monday, February 14, 2005 9:06 AM
Subject: RE :


Hi Harry,

Thank you for your mail and asking.

This is an RB TM323 engine made for us under our specs. We have been working and playing with this TM323 engine for quite a while and did not find any serious things wrong with the engine, also the tuning was not a real problem. However we noticed that If you try to run this engine with the original REVO pipe system it does not work very well.
We also noticed some big differences that when the tank of the REVO gets empty, the engine then has a tendency to go off tune but then again I feel this is not related to the engine.

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



Since I've been running RB's in a wide variety of vehicles,and and they've lasted longer than ANY OS i've had(in fact the new V series idles better than my OS turbo) I'd say you have to give RODY some credit that he knows what he's doing.....

[RcLaB1]

the O.S. .18 TZ or this RB motor?????

[RespirologyRC]

Well if you live by " No replacement for displacement," then RB.

It basically looks like this: Both OS and RB are very good companies that have a history of providing top end products (engines). So this aside you look at the price: OS TZ 200.00, while the RB 323 $229.00 (which inlcude pipe, manifold, engine mount, and a nice looking box). So for me the choice is obvious RB323. I like the OS, but the RB seems like more bang for the buck!!!!

[Racer Rob]

Hmm that thing makes me want a Revo, or that would be a blast in a Jato lol.

[Saboteur]

Me too. I do like my MGT though...not sure if I'd regret selling it at the WRAM show for a Revo and OS .18TM motor. :)

[Rodge]

can i get a little help for you kind gentlemen.

I am now a proud owner of said engine. Had a little problem getting the flywheel off the old trx but that is now sorted. The problem i am now having is the needle settings for this beast.

When i first put it in, it would not start so i adujusted the needles and got it running, after that i realised that the problem was not the needles but the carb linkage, that is now sorted but i lost the default needle settings for the breakin and now it is running extremly hot i cant seem to get the setting right. I dont want to mess about too much incase i damage it from the start.

What i am asking is what are the default needle setting for this engine and what whould you recomend for beakin?

Many thanks for you advise in advance.
Rodge

[JOK3R]

5 turns from closed for the main and the idle is 6 turns from closed

straight from RB

http://www.rbproducts.com/explose/RB%20CONCEPT/E01901-323000-R.pdf

[Rodge]

thanks that realy helps.
I was looking on thier site and the only setting i could find in support was for the .21 and they differ from that in a big way.

again thanks for that

[RespirologyRC]

I would recommend that you get your engine running. By running I actually mean idling (hopefully you didn't touch your low end kneedle), now that you have it idling start richening the kneedle till you have a decent amount of fuel spitting out the exhaust. Once you get to this point you can start to break in the engine from here, and slowly after every tank just lean it out a little 1/8th of a turn at a time until you start to get good blue/grey exhaust smoke. What ever you do don't run your new engine hot or it won't breakin properly and you'll be hating yourself later.
Good luck

[Rodge]

got it running nice now, i did just as you said. got it idleing nice but i had to lean out the idle needle about half turn as it was spluttering just under half revs, as soon as i got it past half revs the power kicked in soooooo much and off it went.

Many many thanks for your help.

[kitty]

I just hope that my baby bro doesn't see this one. Thankfully, it having an orange head sink will likely have him skip over ads for it. What he doesn't know won't hurt me, right? ;) At least I'll still be able to give him a run for the money once I sneak a SH28 in my Savage (I can't afford the WS7II). If he learns about the 323TM, I'm in beeeeg trouble!

[thedarkness]

Sh.28 is a killer engine for a sav.
Kitty do you know a guy in canada named alex kipp?(onthagas)

[kitty]

I know a lot of guys who are running the SH28 and it seems to be the best thing for the money to come along in a while. If I could afford the RB, I would buy one.

I'm familiar with Alex from another board and I correspond with his little brother about Savage stuff. I think Zach has a WS7II now or has one on order. Lucky him!

[NPlayer]

Nevermind

[marctroy]

I installed the O.S. .18 in my Revo and due to the cold weather here in the Northeast never even got to run it before the RB TM323 came out. I'm so happy with my RB C-5 Circuit engine in my Serpent 950R that I pulled the O.S. and bought the TM323 with the 01900-121 which RB markets as a "REAR COVER TM728 Tiger Drive comp (sullivan)". I removed the plastic backplate (#01901-323211) but the new cast backplate/adapter won't fit (it seems too large).

Has anyone else experienced this problem and can you provide some advice?

Thanks!!!

[thedarkness]

did you cut the pin off the end of the crank?

[marctroy]

did you cut the pin off the end of the crank?

No I didn't, but why would I? I'm using a "Tiger Drive" which is similar to the H.P.I. "RotoStart" system and requires the pin on the crankshaft...

[repete]

put hte OS back in..will fix ur prob

[marctroy]

put hte OS back in..will fix ur prob

Don't misunderstand me - I think O.S. makes great engines - the O.S. 18TM is a wonderful .18 and I run an O.S. .21 VZ-B(R) in my Kanai buggy. I've also been very happy with my RB C-5 in my 1/8 on-road Serpent 950R and I wanted a little "more" than an .18 in my Revo...

I just can't understand why this backplate won't fit - especially since it's manufactured (and recommended) by RB.

[RespirologyRC]

stop being lazy and use the pullstarter:)

[marctroy]

I would gladly do so, but the RB TM323 doesn't come with a pullstart and is setup to accept the Traxxas EZ Satart system...

[fezzy]

Use the 2.5 Pullstart you dosey boy :rolleyes:

[marctroy]

PROBLEM SOLVED! The RB part number 01900-121 ISN'T for the TM323 and, therefore, won't fit and isn't necessary. For now I use the EZ-Start system and change over to the Tiger Drive at a later time. Thanks all!

[marctroy]

I've accessed a Forum in which Rody Roen actually answers questions about the RB Products engines but I seem to have lost it. Can anyone pleae provide the link to it?

[thedarkness]

http://www.rbproducts.com/cgi-bin/ubb_cgi/ultimatebb.cgi

[marctroy]

Thanks!