I think my trx 3.3 lost compression, which of these two engines is better ?
I do not run on tracks...sometimes off-road bashing,sometimes asphalt
I need your support please
i like the os.21 tm its a really good engine and a few others here will agree with me on that i have never run a rb 523 so i cannot comment on it
same boat as villageidiot, can't comment on the rb because ive never had one, but ive just put an os.21 tm in my revo and its a brilliant motor.
I have the 523 I have a build on here look it up I broke a lot of parts getting that thing settled In but man is I sick look at my build I Love It it wheelies on demand Or if you lower the revo I just moves I love it no problems engine wise got about 2 and a half gallons in it now
drive it like you stole it
I will choose The Os 21 too,is a good motor with easy tuning...I already saw videos and discussions in other forums and all guys who have it are happy too, I think it will be the best!
Thank you all for your support
i wish u well with ur new engine u wont be dissapointed
Love my OS, but I'm biased. Have a bored stinger head riser n large intake. Its stays at 134°, wheelies on command and has enough grunt to pull abm backflip off a jump.
Modded to the Max
Drive it like its Hot
do u have a video or a post on how to make them mods on the os?
don't buy any RGB engine for the revo... you will have a left turn lean bog.. go for the OS
you know.. i never had a sig.. but i do now...
Yes ...I had already decided to choose OS
ohhh, I just got an RB 523.... waiting for it to arrive....
Ill deal with the lean if it should appear or sell it on.. never heard of this before but form what I have read now it seems like a pressure and large fuel tank issue so if I keep my stock tank and play with the fuel line and back pressure line Im hoping to work it out as others have.. fingers crossed..
Seems this discussion of aftermarket Non-Traxxas engines has completed it's course. Both can be used on Revo's and TMAXX's...
Founder of H.U.A.
I spent What??