Holt engine

[falaqdad15]

Awesome sound!

[mowrman100]

BEAUTIFUL!!!

[porkchopz28]

Sounds like it's ''cammed out'' nice.

[teeter1939]

@ttyyttss1 Where did you find the plans to build this engine? I'd love to build one for myself one day.

[teeter1939]

@Superspermo The real engine may max out at 1000 to 1200 rpm, but they have enough torque to move a mountain. Look for a video of a Holt tractor on here so you can see the full size deal lumbering along. In full scale they are absolutely massive engines.

[Yamahablaster27]

did you fabricate that yourself?

[trackhoe23]

It sounds just like my brother's 1930's Cat No 9 Auto Patrol grader at idle.

[TheLaurencekid]

because its a flywheel engine the fly wheel is much heavier than a normal flywheel and has more energy storage

[Superspemo]

why is it running so slow?Con someone explain that for me?

[trackhoe23]

It's meant to be a low-speed engine. Red line on the real engines is probably somewhere around 1000 rpm. That's the way they built them 80 years ago.

[jack9102]

hahahahah ya like, those engines idle around maybe 200-400rpm max

[BeboAltizer]

how much power?

[diymania]

I´d like to get one of these model holts, i like the sound. Looks nice too :)

[30GB]

sounds like a real car starting and runs like a tractor lol

[777worldliner]

is it for sale? cuz ill buy it!

[Scentlessapprentice9]

I'd like to see one of these running like the real one,SLOW . THUMP THUMP THUMP

[RattlingMurdock]

Read the description.

[rangerssteamtoys]

Nope, runs on your stupidity. No short supply of fuel.

[jack9102]

kinda sounds like my massey harris tractor

[farmerphil]

Very nice workmanship. Did you do the machining of the engine.  Phil

[douro20]

You need to bore the flywheel for pole start!