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how many horses did your machine crank out ?


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just a question. how many horses have you squeezed out of stock jugs, stock carbs, and stock stroke crank. what was your list of mods? i love it when people do alot with very little in any situation in life. i have alot of respect for that. but this time id like to know what kind of power members here have achieved with stock looking cylinders, carburetors, and crank.

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Only obstruction is the 35mm Pwks i had on it, I put down 59.8 horses and 42.0 ft/lbs of torque. Other mods were vf1s, prodesign cool head with 17cc domes, k&n pods, +4 timing, Toomey T5s, and a trail/dune port. :biggrin:

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66.78hp at 8,750 rpm on a Dynomite Crank Dyno.

 

-Dynoport ported stock cylinders 188 degree exhaust duration

-Pro Design Coolhead with 18cc domes (185psi comp)

-Dyna Ignition with custom programmed curve

-Stock reed cages with carbon tech mid tension reeds

-Dual 28mm Mikuni TM flatslide carbs with K&N Pods

-Shaved flywheel

-Cascade Clutch kit with the roller bearing ball end adjuster

-Dyna coil with NGK Plug Caps

-Stock Crank

-Wiseco Pistons (stock bore), squish setup at .043"

-Pro Circuit pipes with the standard silencers (ceramic coated)

-BR8ES spark Plugs

-110 octane sunoco with castor 927 at 40:1

-Stock intakes and stock boost bottle

 

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66.78hp at 8,750 rpm on a Dynomite Crank Dyno.

 

-Dynoport ported stock cylinders 188 degree exhaust duration

-Pro Design Coolhead with 18cc domes (185psi comp)

-Dyna Ignition with custom programmed curve

-Stock reed cages with carbon tech mid tension reeds

-Dual 28mm Mikuni TM flatslide carbs with K&N Pods

-Shaved flywheel

-Cascade Clutch kit with the roller bearing ball end adjuster

-Dyna coil with NGK Plug Caps

-Stock Crank

-Wiseco Pistons (stock bore), squish setup at .043"

-Pro Circuit pipes with the standard silencers (ceramic coated)

-BR8ES spark Plugs

-110 octane sunoco with castor 927 at 40:1

-Stock intakes and stock boost bottle

impressive :notworthy: what kinda port work?

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66.78hp at 8,750 rpm on a Dynomite Crank Dyno.

 

-Dynoport ported stock cylinders 188 degree exhaust duration

-Pro Design Coolhead with 18cc domes (185psi comp)

-Dyna Ignition with custom programmed curve

-Stock reed cages with carbon tech mid tension reeds

-Dual 28mm Mikuni TM flatslide carbs with K&N Pods

-Shaved flywheel

-Cascade Clutch kit with the roller bearing ball end adjuster

-Dyna coil with NGK Plug Caps

-Stock Crank

-Wiseco Pistons (stock bore), squish setup at .043"

-Pro Circuit pipes with the standard silencers (ceramic coated)

-BR8ES spark Plugs

-110 octane sunoco with castor 927 at 40:1

-Stock intakes and stock boost bottle

 

For anyone who cares, the Dynomite dyno is made by Land & Sea. They are good dynos and should be labeled with this: dynomite.jpg

 

Land & Sea didn't take that idea from one of my engineers at a previous employer. :biggrin:

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The best I did was the following when I was still in skool.

 

*OEM welded crank balanced with entire rotation assembly.

*OEM remachined head.

*OEM carbs bored out to 30mm and bored for larger slides (not worth the time and effort).

*OEM cylinders with sleeves pressed out, casting and sleeves ported, then reassembled (done on a live 4 axis CNC mill). You could consider it a hot dune port by industry standards.

*OEM pistons machined to be equal weight.

*OEM rods machined to be equal weight.

*OOF handmade pipes.

*OEM reed cages, ported, with CF reeds (I made the reeds, which wasn't worth the effort).

*M100 fuel w Castor 927 oil.

*Dyna ignition w/ OEM coil.

*The radiator and cooling system in the test cell was used with an electric water pump and thermostat set at 190 degrees.

 

The engine ran for ~10 hours on a Super Flow water brake engine dyno (driven off of the crank). It failed a reused OEM crank bearing at about that time. Peak mean horsepower was 101hp and I can't remember the torque, but I can try and find my engine build book for the engine if anyone cares.

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The best I did was the following when I was still in skool.

 

*OEM welded crank balanced with entire rotation assembly.

*OEM remachined head.

*OEM carbs bored out to 30mm and bored for larger slides (not worth the time and effort).

*OEM cylinders with sleeves pressed out, casting and sleeves ported, then reassembled (done on a live 4 axis CNC mill). You could consider it a hot dune port by industry standards.

*OEM pistons machined to be equal weight.

*OEM rods machined to be equal weight.

*OOF handmade pipes.

*OEM reed cages, ported, with CF reeds (I made the reeds, which wasn't worth the effort).

*M100 fuel w Castor 927 oil.

*Dyna ignition w/ OEM coil.

*The radiator and cooling system in the test cell was used with an electric water pump and thermostat set at 190 degrees.

 

The engine ran for ~10 hours on a Super Flow water brake engine dyno (driven off of the crank). It failed a reused OEM crank bearing at about that time. Peak mean horsepower was 101hp and I can't remember the torque, but I can try and find my engine build book for the engine if anyone cares.

 

that is funkin crazy..

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51.55 hp and 31.3 torque with mods in my sig 60 mm stock bore and no real intake port work just casting flaws removed and the transfers smoothed I did take some material out of the exhaust side and polish it. I have played around with a few set of cylinders and a couple of books and cds on 2 stroke port work. no I am not a pro but it is good to know you did it yourself

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62.6 hp on the dyno @ Little Sahara Sand Dunes Oklahoma.

 

Mods on my 03 shee:

Toomy T5's

HJR agressive dune port

Weisco Pro-lite pistons

noss cool head 20cc domes

+6 timing

welded stock crank

stock stroke

stock carbs 330mains, stock needle 3rd clip, 27.5 pilots, air screws 1 turn out

k/n pods

lightened flywheel

Vforce 3 reeds

50/50mix C12 108octane and 93octane super unleaded

 

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66.70 hp and 42 lbs of torque on a dynomite dyno (and a burnt clutch)

 

stock carbs

stock stroke

stock cylinders with an HJR dune port

+5 timing

21cc domes (pump gas)

k&n pods

vf3's

wiseco pro-lites on first bore

 

everything else was stock

 

link to dyno sheets in my sig

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66.70 hp and 42 lbs of torque on a dynomite dyno (and a burnt clutch)

 

stock carbs

stock stroke

stock cylinders with an HJR dune port

+5 timing

21cc domes (pump gas)

k&n pods

vf3's

wiseco pro-lites on first bore

 

everything else was stock

 

link to dyno sheets in my sig

 

Was it a rear wheel or crank dyno?

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