Originally Posted by pitpop (Post 8250742)

basically what ScottyM is saying is true, you want to turn down the epa when you put a smaller restrictor... if the slide opens all the way up when you have a smaller restrictor it causes the speed of the intake air to be elevated, causing all sorts of strange tuning and sometimes elevated temps... this also can cause turbulence and chaos as the mixture enters the crank... if you reduce the epa, it reduces the velocity of the air coming through the carb insert, reduces the turbulence and resulting ill mannered behavior, and should increase mileage...

you can also just reduce the epa, which should increase mileage and reduce power, but it might be less consistent than the restrictor method.

Originally Posted by LabRat99 (Post 8250839)

PitPop,

No question, I just wanted to congratulate you and Cody. Job well done! :nod::):nod:

Originally Posted by Matthijs (Post 8073916)

the new offroad pipe 2058 will be released next month, item ORI88240.

Originally Posted by debo179 (Post 8252767)

is this a good motor? i also have a werks 2013 pipe set would that be a better combo?
http://www.amainhobbies.com/product_...EFRA-2066-Pipe

Originally Posted by pitpop (Post 8261210)

Grease all the o-rings and just seal it up well (including the ones in the body). If you haven't done this, have an experienced engine guy do this for you. It makes a big difference.

Originally Posted by wgm (Post 8265016)

Hi Pitpop,

do you suggest additional sealing(which one?) for the newer carbs too or is it just right to grease all o-rings?

Many thanks
Wolf

Originally Posted by Kai Hofsten (Post 8362332)

Hi,

I was at my local hobby store yesterday and could not resist buying the Orion Alpha (Non ABI) engine that uses a standard glow plug.

The engine has an aluminium carburator.

This engine has the same piston and cylinder as the Alpha ABI 3.5 engine :)

The quality of the engine looks to be excellent and to a great price!

It will be interesting to compare it to the Alpha 3 port CRF.

Question 1: Is there a power gain to install the turbo burn room in the engine or should I just try it right from the box?

Question 2: I have 3 different pipes to choose from, Orion 2057, Orion CRF 2066 and Orion 2013. Which one will give best performance?

Best Regards
Kai

Originally Posted by Kai Hofsten (Post 8366079)

Thanks,

I will try the 2013 pipe and engine out of the box.

Best Regards
Kai

Originally Posted by j_blaze14 (Post 8369268)

do the orion's like a lean or fat bottom? 5 count or 10 count on the bog test?