MOTOR ROCK "Hand Bend Exhaust Pipe" 手曲げエキゾーストパイプ

[@pagobuck]

is this filled with sand?

[@Shadobanned4life]

Impressive technique and results ! Bravo !

[@brahimmohri4193]

what kind of metal is this?

[@oficinacassiano8553]

Hello friend, I'm from Brazil. I'm trying to do this job but as much as I press the sand with cement into the tube it never makes the curve perfectly. Do you have any tips for him not to wrinkle?

[@Chalado-Schamane]

it's more about where he applies heat and pressure

[@dwalrus7219]

There is no sand in the pipes he has a mandrel inside the pipe

[@davidwhitacre534]

There is sand in the pipe....mandrels are not use when bending with heat. The screw at the end of the pipe allows the sand to be compressed by tightening the screw.

[@Peter-V_00]

Love it!!

[@Budi-ye7zr]

How mm?

[@MotorRockTube]

42.7mm. Thank you.

[@theday_]

can you bend 76mm titanium tube with sand?

[@Ramakteknik36]

Nice❤

[@00mike000]

What's the pipe material?

[@Dragonborn__]

I'm not 100% sure but I'd say stainless given the color.

[@MavericksExhaustSystem]

i guess its titanium due to the discoloration after heated, stainless way too hard lol

[@TheHatton7065]

Mavericks Garage late reply but I think t304 exhaust pipe goes goldish when it gets heated.

[@Jdmlsturbo]

Am I seeing a slight change in the diameter?

[@markkelsall5524]

Ffs does it matter id be well happy with the end result

[@gjaime44]

For the ones concerned it does have sand

[@WestWind]

how is the sand plugged tight?

[@MotorRockTube]

It is a company secret. Thank you!

[@wastelandman198]

@@WestWind Exhaust spreaders maybe, could just tac weld a plate on the end.

[@pauljs75]

@@WestWind It's likely capped in some way, and sand itself is oven dried. If you want some extra insurance, some EDM drilled millimeter or smaller holes in the end caps could allow any possible gas to vent too. Might not be too hard to hold caps on with an expanding rubber-block mandrel too where a bolt goes through to a crush plate. (Rubber expands out when clamped, and with the cap stuffed inside the pipe there's no need to tack weld the cap on then. That should hold.) Just keep in mind there still needs to be some path to outgas to the tiny breather holes.

[@Steele3929]

@west wind I've seen a cap with a center nut then a plunger that fits just inside the pipe welded to the bolt that goes through the nut. As you tighten it the plunger packs the sand. Do t know if thats whats used here or not looks like it could be as it looks like a bolt sticking out of the pipe

[@02powertube]

Hi What is in the pipe? Is it just plugged or filled with sand?

[@roldancatalonia93]

filled with sand.

[@02powertube]

Thanks :-)

[@ExploringCabinsandMines]

how? I tried this and it didn't work!

[@Camp_Dogs]

with or without sand?

[@ExploringCabinsandMines]

@@Camp_Dogs with sand

[@Camp_Dogs]

@@ExploringCabinsandMines what happend?

[@Camp_Dogs]

Im about to try it so im curious what went wrong lol

[@ExploringCabinsandMines]

@@Camp_Dogs it kinked