Referring to these cut outs

In 2007 Orion came out with the CRF .21 motor with this sort of crank machining. The B321, Wasp and the 7 port had these cuts as well. May have been a few more. The on-road motors had this as well.

The CRF RS, does not have these, but instead the rear of the crank has 4 additional ports drilled angled into the Crank Center.

Ok well one of the motors I have has it and one doesn’t there both from the d817 motor combo packs

You say two kits, is it buggy/truggy or two buggies? My buggy does not have the ribs, but my 7 port truck does.

Both buggy

IDK - you make have lucked out and got a Standard version and a factory version.

Hello guys, I am thinking about buying a Orion engine for my Tekno NB and was wondering if "TEAM ORION CRF 21 3 Ports Factory RS V3 WC Edition" would be a good choice? Also would the Reds 2104 pipe work or what would be recommended?

If you are in the US, no offense I would recommend to stay away from the Orion Motors. Parts and Support are almost nonexistent.

You want a motor, that people are familiar with and can help, and not be frustrated when you have to get service or parts from Switzerland!

Just looking out.

I completely disagree. I'm in the US and been running them for the last 4 years with no issues with parts or support.

I plan on getting one next... Unfortunately I just bought a reds r5r last month and then got interested in Orion after it shipped. So after I use the reds for a bit ill switch to Orion. I can get a way better deal on Orion than reds, so I plan on making the switch.

yeah... From where, is your support. Horizon???

... then the other question, do they sponsor you?

Horizon Yes. I've run the engines for 3 years before the sponsorship with Orion. I have also received lots of support from the factory and Team Manager in the US before I was sponsored.. They have been very helpful from simple question to parts. As a person that actually use the engines, I have nothing bad to say, even before the sponsorship.

Please let me know if you have any more questions.

What pipe/header combo is primarily used on buggy?

Im currently running Team Orion EFRA 2149. I was using the 2058

Has someone run the Team Orion CRF 21 RS WC Edition? Any experiences with it?