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-   -   Mugen JX21 (https://www.rctech.net/forum/offroad-nitro-engine-forum/231035-mugen-jx21.html)

tony montana 11-29-2009 06:06 AM

I would send tonyscrews a pm about the head button. He will get you straight

rcmike 11-30-2009 06:39 PM


Originally Posted by jpz_67 (Post 6653794)
Hello all. I finally have had the opportunity to run in my jx.21. I am using it in a mbx6 buggy with the 2042 pipe, L header, OS p3 plugs, and OD 30% fuel. I am very pleased with the power and fuel economy is getting better. I purchased an EB mods head button to try out, which is the original version 1 and have a few questions. I read on here somewhere to install the new button only using the supplied shims, is this correct? Should I change to a colder plug? I really like p3's but I will do what is necessary. Also has anyone found if any of the other ninja headers net any better mileage? I have all 3 and have been wanting to try the 2 C shaped headers . So far very happy with the L header but I think the bottom would be stronger with either of the C headers. Any input? Thanks.

.....................................

TonysScrews 12-01-2009 04:16 PM

If it's an original (version 1) EB Mod head button only use one 0.004" (0.1mm) copper shim with the head button. The P3 plugs will run fine 99% of the time. But if you notice any signs of detonation (read your plug) switch to a P4 plug.

Use the MBX6-80 C-Type header :)

Best regards,

jpz_67 12-05-2009 09:27 PM


Originally Posted by TonysScrews (Post 6664939)
If it's an original (version 1) EB Mod head button only use one 0.004" (0.1mm) copper shim with the head button. The P3 plugs will run fine 99% of the time. But if you notice any signs of detonation (read your plug) switch to a P4 plug.

Use the MBX6-80 C-Type header :)

Best regards,

Thanks for the info Tony. I cant believe how much difference that button made. Pulls harder through the entire power band. :nod:

jpalessi 12-05-2009 09:47 PM


Originally Posted by jpz_67 (Post 6682245)
Thanks for the info Tony. I cant believe how much difference that button made. Pulls harder through the entire power band. :nod:

Nice! Now if you switch to his fuel i bet money you'll say the same thing again. :nod:

Sam-E 12-05-2009 09:53 PM


Originally Posted by jpalessi (Post 6682293)
Nice! Now if you switch to his fuel i bet money you'll say the same thing again. :nod:

Sup JP my man, havn't seen you on da forums in a while, how is all going!!!

jpalessi 12-05-2009 09:55 PM


Originally Posted by Sam-E (Post 6682305)
Sup JP my man, havn't seen you on da forums in a while, how is all going!!!

im good! im on this forum almost everyday.. :lol:

jpalessi 12-05-2009 09:59 PM

Oh JPZ,, the mbx6-80 puts out the best numbers, and not to mention it fits the best on the mooogen.

jpz_67 12-06-2009 08:08 AM


Originally Posted by jpalessi (Post 6682325)
Oh JPZ,, the mbx6-80 puts out the best numbers, and not to mention it fits the best on the mooogen.

Thanks for the fyi. I am going to try it on my nest visit to the track. :nod:

Alan D. 12-23-2009 08:56 PM

Six gallons and it's a POS. Done with O.S.

CKmaxx 12-23-2009 09:08 PM


Originally Posted by Alan D. (Post 6758817)
Six gallons and it's a POS. Done with O.S.



What were you expecting, exactly?

Alan D. 12-23-2009 09:10 PM

For $350 I expected at least 9 gallons.

doubletap 12-23-2009 09:11 PM


Originally Posted by Alan D. (Post 6758817)
Six gallons and it's a POS. Done with O.S.

aren't you should be happy? how many gal. does it take to make kill it.

doubletap 12-23-2009 09:12 PM


Originally Posted by Alan D. (Post 6758876)
For $350 I expected at least 9 gallons.

oh ya at least, i think novarossi takes 10

Alan D. 12-23-2009 09:12 PM

:confused::confused:


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