posted
I heard that the C .12 #104 is the best choice motor for a maxx. My question is how much of an improvement will it be over the stock motor? Please let me know improvements it made such as speed and wheelie power. Thanks.
IP: Logged
Speeed Paul
unregistered
posted
The stock motor doesn't have that much power. An OS .12 Cv has more power than that Anyway all RB engines are very powerful and offer lots more speeeed and good torque but if you have the money get a big .15 engine they will offer much more torque and speed although I am not sure about linkage. For a .12 the C.12 is a great engine.
IP: Logged
Slipstream
unregistered
posted
You have to keep in mind that a TMaxx needs a pullstart engine. You can't fit a starterbox under the chassis.
IP: Logged
Speeed Paul
unregistered
posted
ohh I didnt think of that. I am getting a Maxx (it should have been in today) and I will see if there is anyway that I can fit a bump start up there
IP: Logged
posted
Indeed the C12 #1700-000113 is a suitable engine for the T-Maxx and you can fit it in without modifications, to get even better performances use our tuned-pipe #1700-200.
The .15 engine in our program are not really suitable, they are rear-exhaust, have a slide carburetor but have no pull-starter, they have lots of power though...
It will probably be possible to fit this engine in a Maxx but it will be quite some work and you need probably need to make quite some modifications.
posted
I can easily fit a slide carb in my NMT and a rear exaust. Mods wouldnt be too hard to fit them in a Maxx, I have seen it done
IP: Logged
Speeed Paul
unregistered
posted
I just got a T-maxx. I guess you cant fit a nonpull-start. There is not even a hole for the flywheel. The engine that it comes with is very strong though, lots of fun!!!
IP: Logged
Sean Frayser
unregistered
posted
thanks for all the info and keep it coming. I have been talking to my local hobby shop and they say that the RB. #104 C-12 will be more than enough for my maxx without going to a .21. I don't think my wife would much appreciate me spending another $500.00 on my maxx right now. $200.00 sounds alot better. They also say that if you go to a 16 clutch bell that a factory maxx will do wheelies all day. If you go to a RB motor don't go lower than a 18 clutch bell. NITRO RULZ
IP: Logged
Speeed Paul
unregistered
posted
The stock clutch makes it a little to sluggish at the bottom end, I am gonna switch to a 18 tooth. One thing that can hpl wheelies is to tighten the slipper all the way (do that anyway, more fun!!). Also if you could get a clutch bell that engages a little earlier helps prevent wheels spin and does make it easier to hit a wheelie. Ohh and one more thing, I noticed that the exaust header is not ported all the way, if you port it you will get more power and a cooler running engine. Cant wait to start doing things to mine, today was the first day I had driving the thing, LOTS OF FUN
IP: Logged
Sean Frayser
unregistered
posted
I have already put a stinger exhaust on and I noticed a big difference. I havn't messed with my clutch but I will try what you suggested hopefully it will work. If it doesn't,I'm not to worried because I will be putting the c.12 in soon. Someone please tell me if it is true what I was reading on the old forum where someone said they had put a c.12 in and a trx.15 could outrun it in the long haul If I put the c.12 in and that happens I will be . My local hobby shop garrentees me this will not happen. Please let me know what you know. THANKS
IP: Logged
Speeed Paul
unregistered
posted
who ever said that is a big IDIOT!! The TRX .15 is a good engine (from thet start anyway) but no way will it out do a c.12
IP: Logged
Sean Frayser
unregistered
posted
Thanks and thats what I thought. I guess that proves the old cleshay believe none of what you read and half what you see . I just hope that my tranny and the rest of the drive train will hold up. I think it will given the thing is tough as nails. My buddy hit a street sign at full throttle and all it did was take a little piece out of the bulkhead. I was afraid to look when I heard it hit. Whan I did I was even more surprised to find one bent shock and a little piece taken out of bulkhead. Pretty tough hugh .I have since upgraded to assoiciated shocks and let me tell you they are the best upgrade I have made!!
IP: Logged
2pt5MERCSonN2O
unregistered
posted
I have the C12 with the slide carb (#103) in my T-Maxx and it flys. Running a 72/18 gear, big tube header, and the RB Concept 1850-EP pipe at 110mm length. This thing FLY'S! I believe the slide carb provides better overall power and is well worth modifying the servos to make it work. You can use a bell crank but I just rotated the gas tank 90° and moved the throttle/brake servo. Below are a few pictures. Have fun!
posted
I just got a C12 000103 for my T-MAXX. Slide carb. It's set up with a CVEC rear exhaust manifold for the MAXX. The whole carb is turned 180 degrees and a post and bellcrank set up where the pipe used to be for the slide to work. It just meant switching the channel switch for the throttle servo on the radio for it to work opposite to stock. The brake got switched to where the throttle linkage was and works as normal. I'm 5 tanks in with running it in and so far it's wicked and only at3/4 throttle. I also put in the Traxxas rear diff lockup. If this thing doesn't wheelie I'll eat my radio. The body fits perfect with a notch cut at the back for the twin CVEC pipes. I'll keep you posted after run in is complete
IP: Logged
Sean Frayser
unregistered
posted
Sounds to me from the input that the RB motors kick total butt!! Thanks for all of the input and please keep it coming.
IP: Logged
Sean Frayser
unregistered
posted
2pt5MERCSonN2O Great Picks!!! It doesn't look like alot of work to put a slide carb on, but is it really worth the extra performance? Thanks again for all the input!!
posted
Someone mentioned earlier that a 16t clutch bell would make a stock T-Maxx pull wheelies. I purchased a 16t for this reason, but it did not work. I have the spur gear tightend all the way, and I even turned the back tires around so they would grip better. Still no wheelie. A note of caution to anyone who tries this. This set up with the spur gear tightened all the way WILL easily strip the spur gear and TRANSMISSION GEARS. BE CAREFUL!!!
SPEEEED PAUL. You mentioned that getting a clutch that engages earlier will help. Traxxas offers this clutch. It is the same Part# as the stock T-maxx clutch,but without an 'x' on the end. I'm not sure but I think it is 4146. Anyway I have tried that too, and it makes it harder to do wheelies. I assume it's because the clutch engages before the engine has enough RPM's to pull the wheels off the ground. This clutch makes for really bad low end compared to the stock one. If anyone has any suggestions for a different set up I will be more than willing to try it since I already have most of the equipment that has been discussed.
posted
Sean, RB Concepts can answer the question better than I about the power difference between the C12 with a slide or rotary carb. What's your opinion, RB?
I've never ran the C12 with the rotary carb so I don't have a direct comparison. One thing I know is the slide has a much larger inlet opening allowing the use of a larger air filter. I run a Mugen air filter that is typically used on .21 engines. This large inlet gradually tapers down to the venturi at the slide. The slide provides a much smoother flow path throughout the throttle range compared to a rotary.
Oh, and as for wheelies, this thing will flip on the lid if you are not careful. I do run 30% Byron fuel and keep her a tad rich.
posted
My truck is getting the #103 with the slide carb and I cannot wait to get it so I can see if it is as good as I hear. I will keep you all posted. Please let me know some more of your experiences. Thanks.
IP: Logged
UBBFriend: Email this page to someone!
Anyway all RB engines are very powerful and offer lots more speeeed and good torque but if you have the money get a big .15 engine they will offer much more torque and speed although I am not sure about linkage. For a .12 the C.12 is a great engine.
hopefully it will work. If it doesn't,I'm not to worried because I will be putting the c.12 in soon. Someone please tell me if it is true what I was reading on the old forum where someone said they had put a c.12 in and a trx.15 could outrun it in the long haul 
. My local hobby shop garrentees me this will not happen. Please let me know what you know. THANKS 
. I just hope that my tranny and the rest of the drive train will hold up. I think it will given the thing is tough as nails. My buddy hit a street sign at full throttle and all it did was take a little piece out of the bulkhead. I was afraid to look when I heard it hit. Whan I did I was even more surprised to find one bent shock and a little piece taken out of bulkhead. Pretty tough hugh 
.I have since upgraded to assoiciated shocks and let me tell you they are the best upgrade I have made!!
