bigredspeed

iTrader: (2)

Try it with the short header, but this motor is renowned to make run time, i have no troubles and none of the other Speed user at my club have run time trouble, and some of us are even using the 9mm restricter also. good luck with it.

bigredspeed

iTrader: (2)

this motor against the 21XZ-R has nothing...don't waste your money on the XXL9.. this motor is Xtra Xtra Largley over rated by 9times

ralphierace13

iTrader: (5)

hey big which one do u mean to try with the short header, the nova pipe or os pipe?

bigredspeed

iTrader: (2)

With the nova 2015 pipe try it with the short header

John Doucakis

iTrader: (1)

I friend was kind enough to give me his new MMM OS speed 21XZ-R for a day and I made a short photo report.

Click on the below link or on the photo to visit my blog.

JD RACING BLOG

mtt

Can anyone please post a good base setting for the LSN and the carb gab? I am having a hard time getting a stable idle tune. (+/- 1/4 of a turn).

Thanks.

-Markus

X4

iTrader: (3)

Try LSN 5 and 1/2 turn out from closed position.
HSN 2 and 3/4 turn out from closed position.

This should be very slightly rich on the both ends.

I'm runnin 5 and 1/4 LSN and 2 ans 1/2 on HSN. No idling issues... Engine runs great.

beebone

The factory setting is:
-LSN: bolt head 0.5mm beyond flush
-HSN: 3 turns out from full close
-idle: 0.5mm, venture tube remove

This is very rich on bottom end, but you can't lean much on LSN it will easily to have lean bog. Try the Massive Mod 7 sec pinch test at cold engine to set the LSN and idle first, then lean the HSN hour by hour. U will notice the bottom end power is too much and the wheel spins lot. This time, richen the LSN until u have smooth launch and raise the idle.

jensroland

Is the T-2080 pipe and manifolds EFRA approved? There is only printed FEMCA 2008 on it.

Kind regards; Jens

Michael_T

iTrader: (52)

These are the exact pipes Shimo and Hara used at the Worlds, so the answer is yes.

Ultraspeed84

iTrader: (45)

where is everyone buying these motors at in the US?

ralphierace13

iTrader: (5)

we get them from absolute hobbies, call ask for joe tell him ralph told u to call, i am sponsored by them. its alittle more then hong knog but when u add the shipping from hk it about the same....

BIGCAT TX

iTrader: (1)

rc-mushroom has them for 369? 24 shipping?

jv

Also on TopRC site you can find interesting prices.

You have to take away from the listed price the TAX (20%) for international shipping (shippings outside Europe) and the shipping costs are about 22$ to USA.

You get the O.S. SPEED Tuned 21XZ-R engine + shipping at about 380$. Then I don't know about the customs tax you guys pay in USA...

jv

I don't know for this year yet, but in 2011 it was 100% NOT EFRA homologated, because we had to use other pipes at the EC.