UL Power 350iS Engine 

I was looking for a bit of ULP research and this answered my questions. Perfect.

Incredible amount of work. Being a disabled veteran with little use of my arm, I am impressed by people who have both the time and patience to spend a thousand hours on a project like this. They do save at least 50% I believe.

Hey there from Central Wyoming! I wanted to thank you so very much for providing an absolutely outstanding video in the how to category! I hope you do a complete series of these because quite frankly your presentation is the clearest, the most logical, and the most comprehensive, for someone who has not yet bit the bullet and delved into building a kit aircraft, or selecting an engine. Previous videos that I've seen, and I'm talkin several hundreds, have been nowhere is clear is your video is! Far too often the work seems so complex, and so convoluted, but it just makes me want to grab a fifth of dark rum pop the Cork and just start drinking! The two engine manufacturers that I have narrowed my search down to, is UL and Aero Momentum, the arrow momentum seems to be in the lead so far, because of initial cost and rebuild cost at TBO time! The Edge that your model engine has, is the fact that it is air-cooled; no pesky cooling jackets and conduits, no extra weight for radiator and all the coolant, and none of the extra sensors and wiring. aircraft model manufacturers the top three chip manufacturers are zenith, the PSA Merlin out of Florida, and the Chipper aircraft; however the last one is problematic because of a lengthy build time and a lack of aircraft in the air. Thank you again for your time and I wanted to let you know that I have subscribed and hit the little bell so that I get notifications of your new postings. Take Care and I look forward to seeing new videos

Very nice presentation.

This is a great introduction to powering the 750. Thanks !

If you have not done it already , save yourself a lot of grief later by pulling the exhaust pipe flange bolts on the cylinder head and put high temp anti seize compound on the bolt threads..........pull them out one at a time , lube them and retorque each one before going to the next bolt.........the bolts will seize themselves in good without anti seize on them..........the stainless braided lines in your fuel system , are Teflon tubing inside the braid...........I am pretty sure they need fire sleeve on them as well , but a phone call would clear that up..........nice tidy installation you have done.........looks great..

an absolute pleasure to watch such quality workmanship my friend.

That is one beautiful engine...and kudos to your cable management and organization. I had never considered a UL engine but after seeing this video, am considering it as opposed to Rotax. Well done!

Hi Mark, thanks for the tour. Just a word about the Ground, at the ECU top left vibration mount, firewall side. It could use its own isolated clean "bolt to firewall" connection. As it is now, it only has one good contact face, due to the rubber overcast on those isolators. Looking great, keep up the good work.

Mark; Your entire video was spot on what I was looking for. You have a very clean professional install. Thank you for posting it.

Looks like a nice, clean installation! Looking forward to a first start video!

Why you favored UL over Rotax? Thanks

Excellent video!

Hi, great video! What battery are you using for the ul350is ? Do you have video of your baffling set up? I just bought a newly finnished Zenith 750. It needs some tweaks still. I have the ul350is too. Mine has the mgl efis system....

It's great that we got some new engines on the ultralight scene, like UL Power and D.Motor. I would very much like to see an ultralight helicopter fitted with twin D-Motor LF26 engines. Guimbal Cabri G2 would be a killer with twin LF26...it would likely be one of the safest helicopters on this planet...big commercial turbine helicopters included.

This seems like such a better option compared to the rotax 912. I just like how UL power has put this package together, but I have yet to price one, so that might change my opinion on what I would eventually use.

With your oil pressure sensor, did you bleed the air out of the remote oil line?

Very nice video thanks for sharing.

an ammeter is probably very handy to have on an aircraft, mostly because even the most ambitious homebuilder probably doesn’t fly every single day and charging issues can crop up easily. The meter gives you a built-in diagnostics tool to figure out if you have a draw and also a quick reminder as you’re shutting everything down to check the gauge and if there’s more than whatever your minimum draw should be you know you have something still on that shouldn’t be.

what is your view on car engines and aircraft engines? What should be considered when going for car engines on a STOL plane?

Hey Mark. I've noticed UL Power installs on Zenith 750s, the engine mounts quite far forward away from the firewall. There is almost enough space there to install another engine :). I figured it was for CG, but your UL Power is about the same weight as a Rotax 912, and ~30lbs lighter than an O-200/235, which mount much closer to the firewall. Any idea why they sit the UL Power so far forward on the Zenith 750?

Great video, I. learned so much so quickly - great filming, narrative, technical vocabulary! A quick question: are you still quite pleased with the UAL 350 engine? Any issues? Thanks!

At 5:38 the power wire running from master switch to the relay looks like it is under strain.

There are actually FI systems which don't have return lines, they just use the pump to control the fuel pressure.

Mark, Do you use any type of "locktite" on the nuts and bolts that don't have a locking type nut? Like all the little nuts and bolts used to mount all the little hose/wire clamps you have in your engine compartment. Thanks

Is the plane flying yet?

That ferrell on the throttle cable should just thread off. The when reinstalling it you can give it a lite crimp.

That "Gears" called your Fly wheel that's what your starter engages to start you engine ..Nice job so far ..

I would put the zip tie on the oil pressure sensor NOT on the plastic connector part.

Mark, could someone with no experience install the 350iS engine with the use of the Homebuilt Help Video? I know it would be foolish doing an install and then flying without an approval from and AP, but could it be done?

I would like to do this but I lost 90% function of my right shoulder when it was replaced while I was on active duty. Doing anything hurts profoundly. So I must purchase a completed one. Anyone who has one exactly like yours please contact this old Army LTC. Marcus Russell.

Maybe I wrong but the ideea is to don't ground everything in one point. ( min 8.20).

Hello, I would like to have a chat with you about your experience with UL Power and Zenith. Is there a number I can reach you at? Also, who is "Ray" at UL. How can I reach him? Thanks.

Precio del motor

For that fitting for thr cable line just bore it out to fit those ferrels.

When will you complete this build

Beware with the oil cooler..... If you can push it up against the oil pan, it will make contact during flight. I have this problem and am currently figuring a solution. If anyone has a suggestion , I'm all ears.....

L am pleased to be a new sub

Beautiful! NASA "inspired"... :)

A water cooled inline 6 cylinder would be a much better engine. Too many wires and pipes going everywhere. This style of engine is out of date.