NEW OS 21 XZ-B and Speed XZ-B
#5161
Tech Adept
They are the same in distance.The spec 2 is just more knife edge, lightend.
#5162
Tech Adept
I have an OS Speed XZB (not the spec 2).....it was my last engine before I quit offroad....now I m thinking of getting back and upon checking the engine, everything are fine, only the compression is loose. So if I want to rebuilt the engine will the newer B2101 piston, liner & conrod assembly compatible with the Speed XZB? Or is there any other alternative choice that can be use? Thanks in advance for the info.
Last edited by kyosho28; 07-17-2015 at 03:08 AM.
#5164
In any case, the b2101 is awesome in truck. The spec 2 is a monster from bottom to top, and it can still be too much in truck for some tracks. The b2101 smooths things out just a touch. I use both motors in truck, and have raced a lot of others that love the b2101 in both buggy and truck.
#5165
pipe combination
I am about to break in my OS 21XZ-B VII motor, but before I do I wanted to get pipe recommendations. I have very limited knowledge when it comes to pairing engines and pipes. Previous to this OS I was running a Werks engine and pipe. I was considering reusing my werks pipe (2058) with this OS.
#5166
This p/s with fit your engine and are a good price. http://www.ebay.com/itm/Mugen-Ninja-...c#ht_288wt_929 or http://www.ebay.com/itm/Mugen-Ninja-...e#ht_288wt_929
#5167
I am about to break in my OS 21XZ-B VII motor, but before I do I wanted to get pipe recommendations. I have very limited knowledge when it comes to pairing engines and pipes. Previous to this OS I was running a Werks engine and pipe. I was considering reusing my werks pipe (2058) with this OS.
#5168
Thanks for the response
#5169
Tech Addict
iTrader: (1)
I am about to break in my OS 21XZ-B VII motor, but before I do I wanted to get pipe recommendations. I have very limited knowledge when it comes to pairing engines and pipes. Previous to this OS I was running a Werks engine and pipe. I was considering reusing my werks pipe (2058) with this OS.
#5172
Tech Initiate
hi there... i have a thought of buying the O.S. MAX 21XZ-B VER II...
do you recommend this engine ?
i am a racer.
what about the pipe? a friend of mine told me that my spare Novarossi 9901 super strong works fine with this motor.......
what do you think ?
do you recommend this engine ?
i am a racer.
what about the pipe? a friend of mine told me that my spare Novarossi 9901 super strong works fine with this motor.......
what do you think ?
#5174
Tech Initiate