Does anybody know if there are any problems (or had any problems) during check-in of carry-on baggage with a 1/8 buggy KIT + engine+pipe combo?

A friend of mine is taking a mbx8 kit with an engine combo for me and we're wondering if security will not freak out looking at a bag of parts...
I watched a vid by Ty Tessmann where he goes through his packing method but he transports built cars not kits (easier to explain i guess).

Do you have any experience in that?