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Briggs vs Kohler and the state of the market for modifications

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WonderousMountain

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Kohler's Command line runs a 2.64 stroke, while B & S made
The jump to 810cc with a 2.89 stroke at nearly identical bore.
Compared to the ductile iron one, the original has 88% the cc.
What I'd like to do, is go a little further than that, opening it up
900cc, to get the power without Revs, redrives and ornate fixes.
 

pictsidhe

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How much does that cost? Has anyone done long term testing, yet?

I can buy an EFI 810 vanguard with forged rods and crank for $1300. The carb version is $1100. Those are solid, tested core engines that are not too heavy.

In other news, I had a look at the sump capacity of an upright 810. About a quart and not deep, so would be overly sensitive to inclination. I will need an external sump of some sort.
 

WonderousMountain

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How much does that cost?

Your sump, and all the little extra bits to install it.
How do you figure the installation expenditures?
 
Last edited:

Vigilant1

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I can buy an EFI 810 vanguard with forged rods and crank for $1300. The carb version is $1100. Those are solid, tested core engines that are not too heavy.
Funny, I was just checking prices this morning. The street prices for the Vanguard 810s (EFI and carb versions) have dropped $200-$300 from where they were 6 months ago.
With carb $999 , (plus tax, S&H) 49R977-0012-B1 Briggs & Stratton Gas Engines, Vertical Vertical 1" Diameter Shafts 49R977-0012 - 26hp Vertical 1-1/8"x4-5/16" Shaft, 810 Vanguard, Solenoid Shift Electric Start, 16 Amp, Fuel Pump, Briggs & Stratton Engine
With EFI: $1169. ( Plus tax, S&H) http://www.smallenginewarehouse.com/49E877-0007.html

other news, I had a look at the sump capacity of an upright 810. About a quart and not deep, so would be overly sensitive to inclination. I will need an external sump of some sort.
Easiest way might be some sort adjacent buddy-sump near the (new) base of the engine? No need for additional pumps, just gravity flow to the engine. Flappers or check valves would help keep oil in the engine during short excursions from level flight.
 

pictsidhe

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Funny, I was just checking prices this morning. The street prices for the Vanguard 810s (EFI and carb versions) have dropped $200-$300 from where they were 6 months ago.
With carb $999 , (plus tax, S&H) 49R977-0012-B1 Briggs & Stratton Gas Engines, Vertical Vertical 1" Diameter Shafts 49R977-0012 - 26hp Vertical 1-1/8"x4-5/16" Shaft, 810 Vanguard, Solenoid Shift Electric Start, 16 Amp, Fuel Pump, Briggs & Stratton Engine
With EFI: $1169. ( Plus tax, S&H) http://www.smallenginewarehouse.com/49E877-0007.html


Easiest way might be some sort adjacent buddy-sump near the (new) base of the engine? No need for additional pumps, just gravity flow to the engine. Flappers or check valves would help keep oil in the engine during short excursions from level flight.
Yes, I'm seriously considering a external sump underneath, with ball valves to the main sump and a flop tube.
 

karmarepair

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Zach Kerber has a CNC breather plate. Problem solved.
That's a nice bit of kit. I could not figure out what the tapped holes in the top were for, till I looked at some pictures on their Facebook page. https://scontent-sjc3-1.xx.fbcdn.net/v/t1.0-9/93588973_3201767149853919_4507439860709064704_o.jpg?_nc_cat=102&_nc_sid=110474&_nc_ohc=4BltbUSO4HYAX_bBZsg&_nc_ht=scontent-sjc3-1.xx&oh=72746e87767deb641717c674199fc07f&oe=5FB0F639 one example of what they mount to those holes.
 

Vigilant1

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if you did not have the gear box or starter on the 277 would be fair amount lighter......part 103 is hard.
Keeping the starter on the 277 but taking it off the 810 might not be quite apples to apples.
It's not the same with the gearbox. The 4 stroke can turn a useful propeller without it. The 2-stroke would suffer a lot larger diminution of low speed thrust if the gearbox was eliminated and it was fitted with the (20"?) prop that can turn at that engine's max hp rpm.
 

proppastie

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starter is nice, so is the gearbox....somehow I thought the 277 was around 30 lb....which does not seem the case
 
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