First look and comments BSV35

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Legal Eagle XL ORV with the Briggs and Stratton Vanguard 35 with 1.8 to 1 redrive. This video shows some of the first full power runs we made with this engine. This engine is completely stock with exception of removing all unnecessary engine sheet metal and the governor arm. Throttle goes directly to Carb operating arm and max rpm is set by adjusting the Wrap drive ground adjustable prop so engine is turning 3,600 rpm at wide open throttle. engine is smooth at higher RPMs but is a little rough at about 1400 rpm. Need to check prop balance and put some run time on it. Biggest complaint is the 35 is very heavy compared to the 1/2VW engine. The intent here is to check out what the larger 35 has to offer for the Legal Eagle XL. We want to keep everything simple and easy. To find out more go to legaleagleairplane.com or legaleagleflyingadventures.com.

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27 авг 2023

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Комментарии : 27

@vg23air 12 дней назад

EGT probes should be mounted one and a half to two inches below the cylinder port. This places the probes in the flame front which will give the most correct reading.

@houstonsheltonbees814 9 месяцев назад

Thanks for what you're doing for the legal eagle community. 👍 Good health and God bless

@regdor8187 9 месяцев назад

Ahhhhh, the satisfaction of unfettered investigation....

@nattybumpo7156 2 месяца назад

Thrse briggs conversions really need a radial mount. The thrust line is so high relative to the bed mounting that maturing or failure of one of those mounts would likely be very dangerous. A radial mount would also address some of that horrible vibration. The mounting system remains my major objection to these power plants.

@tomcoryell 8 месяцев назад

Thanks for doing the R&D Les! Much appreciated!

@OldCarsAreFun 8 месяцев назад

You have an awesome hobby!

@twistedpixel2558 3 месяца назад

Not only for icing, but most small engine factory carbs are built to garbage specs and are usually more inefficient and more conservative than a good aftermarket carb. You'll get more horsepower and more reliability with just a carb upgrade on almost every single small engine made. Best money spent on any small engine, hands down.

@JohnMartin-ze8cf 9 месяцев назад

Wow...,.now I know what I want for Christmas

@joelkoonce8559 9 месяцев назад

Les . You be da MAN !!!

@vg23air 16 дней назад

In this video at 3:30 you say the bs 23 is 51 lbs barebones no intake or exhaust or flywheel, did you mean flywheel or redrive ? thanks

@SR-gs8zo 6 месяцев назад

such vibrations were the reason i searched for a boxer for over 1 yr...and at the end boight a two stroke 4 cyl.opposed ...that,s extreme and deathens the fatigue life of your frame!

@tracnunya7165 9 месяцев назад

Starting, make sure the compression release is functioning properly or starter won't turn it and will burn up, improper valve adjustment disables compression release function. Valve adjust is CRITICAL on those with comp release, I burned up two starters

@laprepper 9 месяцев назад

Are you getting a bit heavy for 103a with that setup? Love these videos

@tracnunya7165 9 месяцев назад

Yep, unless it's a float plane with a brs

@Jack-ne8vm 9 месяцев назад

Run oil line up in copper tube around air intake for warmth? How about aluminum tube routing exhaust out behind you for additional quiet?

@tracnunya7165 9 месяцев назад

Use speeduino and convert to efi, no carb, no ice

@MartianLivesMatter 9 месяцев назад

Honda has a fairly new V-twin that might be a fun project. It's called the iGX800 and is EFI which would probably negate any icing issues you get with carbies.

@nattybumpo7156 2 месяца назад

Too many plastic internal parts to be considered for flight without a full rebuild with higher quality components.

@MartianLivesMatter 2 месяца назад

@@nattybumpo7156 what’s wrong with plastic in this case?

@tracnunya7165 9 месяцев назад

They have an efi version, use those and replace the ecu, no carb ice issues,, no carbs

@nattybumpo7156 2 месяца назад

I dont believe that to be true. There will always be a venturi effect at the throttle valve, which is the problem area. That area if relative low pressure will freeze moisture. For years in the certified airplane world this myth persisted, and we were wrong.

@seangfoster1974 9 месяцев назад

How much does it weigh?

@ryoungatlmidotnet 9 месяцев назад

Case alone is 81 lbs vs about 50 for the 23. Figure at least 30-35 lbs heavier than the 23 installations? Which is to say probably the same "delta" compared to a 1/2 VW. Stock 23 lists at 87# per Briggs. Stock 35 lists 125#.

@seangfoster1974 9 месяцев назад

Nice to know, but what would be even nicer is to see Les try a Yamaha YG2 on ORV. That would be spectacular! It's around 88lbs for the engine (123 lbs all up installed weight) and makes 80 HP! Granted it's an 11,000 monster, but it's a 4-stroke snow mobile engine that was based off of a very reliable dirt bike engine.

@tracnunya7165 9 месяцев назад

@@ryoungatlmidotnetyou are at 80 lbs with a prop on the 23 and 110 for the 35

@ryoungatlmidotnet 9 месяцев назад

@@seangfoster1974 Not a realistic engine for this airframe, in my view. You'd be a VNE just above idle.