Just some more feedback from this past weekend State race @ Fort Myers
Tested out the CL-9 with a Novarossi 2015,5 fin header made the B main
I was able to shave almost 1/2 a second using the 2015 hitting a 12.5 in comparsion to my last outing at the same track

Hello,
I got this engine(AAC version) with a jp 2031 with special conical manifold 2nd hand.
What brand plug should fit without any problem?
Also which engine conrod will have direct fit?
Thanks in advance.

Huh, a CL9 AAC?
I think you have an older Capricorn engine made by Star motor (Sirio)

Hello Roelof,
I feel the need to thank you for all the help I got from your posts on engine port timing and mods.I do now test the singh grooves in a cheap buggy engine
As for my engine yes it AAC and the sleeve is exactly as the sleeve of the ABC version,if you do not believe me I will open it and post pics as soon as I reach the post limit number.
It is sirio based but I do not know which sirio conrod will have a direct fit and what brand glow plugs will do as I cannot find Sirio or Capricorn plugs.
Thanks in advance.

Hello Roelof,
Thanks for all your helpfull posts about engine porting timing and mods,I curently test the singh grooves.
About the engine it is AAC and the sleeve is exactly the same as the ABC(I can't post pics yet cause these are my first posts here.).
It is a Sirio based engine but I do not know which sirio conrod will have a direct fit.
As i can't find any Capricorn-Sirio Glow plug I need help on which brand plug should I use.
Thanks in advance Dsond.

Capricorn did switch over to Novarossi a long time ago. Engines currently made by the same manufacturer are Sirio, REDS, Werks and Orion (ABI) but I can not tell if a rod will fit.

http://www.micromotori.com/pdf/sirio.pdf
Here a Sirio partslist, all "faster" engines listed do share the same rod but still I can not tell if it will fit.

Should be a Sirio rod but can't say 100%.

Sirio/Werks/Orion plugs are awesome, stick with them.

Sirio and Capricorn plugs are the same or not?

Send Capricorn an email and they will be able to tell you which one to use, and maybe are able to order it for you.

Yes they are, and they are the best.

Thanks to all of you who responded and helped.

I'm in the market looking for a motor for my MRX4X and this one caught my eye. Having no luck finding any videos online of this motor. If anyone has some links, pls shoot them my way. Thanks for looking.

Anyone?

Because this was a top range engine it has competive to all other toplevel engines like the Picco Torque, Novarossi Flash and Keep-on, Sirio CL7 etc.

On a movie you will not see any difference.

Thanks Roelof for the insight. Much appreciated.

To give an example... one of them could be one....

http://www.youtube.com/watch?v=xV8m7duXK9g