Hi Guys
If you want an honest opinion of the JX ninja just ask Wayne Walker Mugens Australian factory driver what he thinks, he will tell you there is no comparison between the GRP ninja and the JX ninja.
The JX is easier to tune, has better run time and has more power, he normally runs the c shaped manifold.

Barry.

Hi Guys
If you want an honest opinion of the JX ninja just ask Wayne Walker Mugens Australian factory driver what he thinks, he will tell you there is no comparison between the GRP ninja and the JX ninja.
The JX is easier to tune, has better run time and has more power, he normally runs the c shaped manifold.

Barry.

Anyone used the Mugen pipes?

p@dDy

I think you need to be more specific.

http://www.mugenseiki.com/ninja-spec...r-manifold.htm

Are they good? Bad? Too expensive?

p@dDy

If they are the JX14001 & JX14002 L and C manifolds, I would assume they are the same as the L header from the 2050 OS pipeset and the C shaped from the 2060 OS pipeset. They are very durable IMO if they are the same. Use L shape for more lowend torque and C shaped for smoother power delivery. Mugen only has the EFRA 2042 pipe listed (OS 2060 pipe)

My JX21 landed today and I have to say that the first impressions are superb, typical OS manufacturing quality and internally everything looks spot on! With abit of luck I'll get her fired up and running for a few tanks tomorrow, can't wait.

Has anyone used the OS plugs on this engine?

have used OS plugs identical just different packaging

Since it is an OS made motor I would think OS plugs would be the best choice.

Could be wrong though since I don't have one yet.

The OS plugs are the same. Ninja has P3 & P4 plugs listed, but from what I have been reading, it seems P3 or P6 are the plugs to use depending on conditions.

How does this engine compare with the expensive motors?

Yah right sir,with running time of 11mins 30,great engine!

[QUOTE=joydude630;4661446]Has anyone used the OS plugs on this engine?[/QUOTE
Ive tried p3/p4,p3 runs great!

Anyone