046 big bore

[StihlEchoingHusky]

I got bored while waiting for new rings for the OEM piston so I ported a big bore cylinder here's the first run. 28 inch full comp square grind rakers next to non existent.

 

[Outdoors]

Looks good, nice job! What cylinder did you go with?

 

[StihlEchoingHusky]

Looks good, nice job! What cylinder did you go with?

It's just a hyway titanikel big bore and at that a free porting cylinder. Sure does rip though. It will be a OEM again here very soon right after I finish buttoning up my 365. Yes My 365 looks off color wise damn previous owner painted the engine cover and the clutch cover. It all says made in Sweden though haha (farmertec pro trigger idk why but I like them)

 

[Outdoors]

Is the titanikel hard to work with when porting?

 

[StihlEchoingHusky]

Is the titanikel hard to work with when porting?

Diamond burrs slow speeds. Foredom Vstones work aswell and foredom blue ceramics work really good for port chamfering. I honestly prefer the ceramics for chamfering vs diamond it comes out cleaner on any of the plating. Atlease that's what I've found

 

[Jake Dykstra]

That sounds good!
I went with a 66 piston in mine. Longer skirt allowed for chamber/base cut.
Runs pretty good but damn that thing drinks fuel like a nitro car.
Which is weird cuz my bb 390 sips fuel like a prius and makes more power. Guessing the port work i did is more efficient on the 390 is all i can figure.
I've had great luck with the titan nickel cylinders. That said I take way to long to port a cylinder.

 

[StihlEchoingHusky]

That sounds good!
I went with a 66 piston in mine. Longer skirt allowed for chamber/base cut.
Runs pretty good but damn that thing drinks fuel like a nitro car.
Which is weird cuz my bb 390 sips fuel like a prius and makes more power. Guessing the port work i did is more efficient on the 390 is all i can figure.
I've had great luck with the titan nickel cylinders. That said I take way to long to port a cylinder.

I've had one titanikel failure. Burr had broken teeth. Other than that I've had good luck

 

[StihlEchoingHusky]

That sounds good!
I went with a 66 piston in mine. Longer skirt allowed for chamber/base cut.
Runs pretty good but damn that thing drinks fuel like a nitro car.
Which is weird cuz my bb 390 sips fuel like a prius and makes more power. Guessing the port work i did is more efficient on the 390 is all i can figure.
I've had great luck with the titan nickel cylinders. That said I take way to long to port a cylinder.

I haven't broken it in yet to where I feel comfortable enough to put it in wood but here's a ms250 titanikel pre portwork . Got the saw for free with Burnt piston and cylinder. The titanikel was on sale. It's probably the cleanest aftermarket jug I've come across. a cross performance 372 xtorq was just a tad nicer. I definitely prefer OEM but I do like to play around and find what works and what doesnt