i wonder why they have a funny size rear bearing ....

where they getting 10 min run time with the od pipes ?

we have run it in a truggy over 11 minutes with a 2035 pipe ,now it depends what fuel you use ,how you tune it , gearing ,clutch ,the way you drive etc etc .everything matters when it comes to fuel economy.

we run Barmah 39 fuel made by nitro x for barmah r/c.
another thing is temp the lower the temp the more the run time the more the temp the less and that can be achived by different fuels used as we do have some fuels in OZ which are total garbage i wont mention any of them not my job to.

The better the fuel the leaner you can run without damage to the engine.

Go see Dave at ryper and he will lead you in the right direction with tune as no one is an expert and some know more than others

fair enough , i only run the fuel dave has anyway so thats no real issue as for tuning , i would like to think i have no problems , what i have now done is started to play with clutch set up , what i was thinking was the clutch was engaging to early and bogging the engine down . the weather is crap so unfortantly not what i wanted to happen is now i have to mess around with at the national titles as this is the engine i will be using ...

okey , im now very happy with this motor , changed pipe and clutch set up and now the truggy is awsome ... 2047 pipe is the ticket , bucket loads of power and lots of top end , after these changes i was really surprised with this engine ho much go it had been a 4 port powering the truggy along .....

has anyone tried the JP-1 pipe?? or a different cooling head?? the old werks heads fit right and just wondering if anyone has tried either of the two and the results.

thanks

I've tried a number of different pipes and the JP-1 is one of my favorites so far until I can get my hands on the Odonnell pipe ... But until then the JP-1 and the Associated 2035 are both good.

I've also put an aftermarket OD head on my SS 21.. I did lower the temps, probably because your getting a reading further away from the plug, but you have to open up all 5 holes on the aftermarket head a little. The 4 mounting holes are wider on the engine, and the center of the button where the plug goes in is also wider, but it works fine...

whats wrong with the head that comes with it ? hasnt it been lowered to geduce CG ?

anyway what is the exact rear bearing size i want to get ceramics

i didnt like the 2035 pipe is the rear bearing 14x25x6 ?

i foung the 2035 pipe just didnt want to scream top end and felt sluggish down low

the SS.21 head has no holes in it ahead of the plug
to cool it

Nothing is wrong with the head that comes with it... I like running a purple head to match my body that's all.. I gotta look good to run good style over substance..

LOL! I look good and still run bad!!

You and me both!!.....LOL

thats fair enough ....
i like the look of the black cooling head didnt at first but....
the head looks stealth in my truggy

thats why im asking because the werks head i have is orange and matches my paint scheme


thanks im going to try the jp-1 because as someone just mentioned the 2035 felt to me like the bottom was a little soft and wouldnt wind out on the top

Hong nor efra number 2047 pipe is the best to use same as the Jammin efra 2047 .Until the odonnell pipe comes around this is the best combination .

The head is the best the black head is low so low cg and it sits flush with the truggy bodies so on rolls you will never break the head no chance .