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Which ever has the biggest ID. I’m not picky on color.

Timbo, If Dave passes, I’ll take it.

Common sense? What’s that?

Any carb that bolts to a CMB Beta will bolt to the K-21. Speedmaster, KRE, Zoom, etc.

The BZM cylinders are Nikasil plated. Very nice stuff. They do a lot of pocket bike race motors so it’s nice to have the flow down to the RC engines. (They also use the GP exhaust builders for the RC tuned pipes!) DLC seems to be more suited for bearing surfaces. Also good stuff in the correct...

Thanks Ronnie!

I'm down to party in the bayou! Already have our house book.

The last batch of K-21 were sent out with standard head and optional turbo head. I'm looking for one of the turbo head buttons that someone will not be using. Thanks

Dang! I thought when it slipped a flat on the hex key was when it was to proper torque.

PayPal sent. PM has mailing address. Thanks

Roger, I'll take one of the .67 cowlings please.

L for me please

I give you $175 shipped to GA

Yikes!

I do use turbo plugs in my K-21’s (and in the K-45 engines as soon as we get the heads in from the Ukraine). But as Al pointed out, everything else has to be optimized to see any real performance gain. Do i think it’s worth it, yes. If there is an opportunity to gain performance then I will use...

Diamond-Like Carbon (DLC) coating.

John, Oil has nothing to do with glow plug development, only how it effects the glow plug.

So a post about glow plugs turns into a discussion of fuel/oil. Train..Wreck… 🤦🏻‍♂️

Sam, I will not be able to make it. Hope yall have a great time

Looks like it's live on RCRACINGEVENTS.