How much horsepower? And Torque?

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Al Smith

Al Smith

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Kenskip1 said:
Al Smith,
I have a 041, manafactured in about 1974. Last fall I put a tack on it and it spun well past 10,700.This saw is a screamer.155 pounds of compression. Using Amsoil 80-1, Ken
The Hp and torque ratings were taken at a specific rpm,not necessary the max rpm,when tested.An example ,not related to saws,is a John Deere 70 gas.The governed rpm is 975 but max torque is at 805 rpm.All internal combustion engines have a power/torque curve,a power band,if you prefer.Depending on the engines design,this could be high,low ,or perhaps ,mid range on the rpm scale.As an example of design,the 038 also 61cc,is rated at 4 hp at 9000 rpm and 3.7 Newton meters at 6500 rpm.Max rpm ,given is 12,000.Once again the reference was Stihl.
 
raybow1

raybow1

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041 ave super

This is what it sais about the 041 ave super

MANUFACTURED BY: STIHL ANDREAS MASCHINENFABRIK
STUTTGART, GERMANY
SERIES OR ASSEMBLY NUMBER: 1110
YEAR INTRODUCED: 1977
YEAR DISCONTINUED:
ENGINE DISPLACEMENT: 72 ccm (4.4 cu. in.)
NUMBER OF CYLINDERS: 1
CYLINDER BORE: 48 mm (1.89 in.)
PISTON STROKE: 40 mm (1.57 in.)
CYLINDER TYPE: Aluminum with chrome plated bore
INTAKE METHOD: Piston ported
MANUFACTURER ADVERTISED H.P.:
WEIGHT : 8.1 kg with 33 cm bar & chain
OPERATOR CONFIGURATION: One Man operation
HANDLEBAR SYSTEM: Anti-vibration
CHAIN BRAKE: Optional
CLUTCH: Centrifugal
DRIVE TYPE: Direct
CONSTRUCTION: Die cast magnesium
MAGNETO TYPE: Thyristor electronic system
CARBURETOR: Tillotson HS-138B series
MAJOR REPAIR KIT: RK-21HS
MINOR REPAIR KIT: DG-3HS
AIR FILTER SYSTEM: Flocked wire mesh flat element
STARTER TYPE: Stihl automatic rewind
OIL PUMP: Automatic
OPERATING RPM:
IGNITION TIMING: 2.5 mm (0.099 in.) before TDC
BREAKER POINT SETTING: none
FLYWHEEL/COIL AIR GAP: 0.2 to 0.3 mm (0.008 to 0.012 in.)
SPARK PLUG TYPE: Bosch WSR6F, Champion RCJ7Y
SPARK PLUG GAP: 0.51 mm (0.020 in.)
CRANKSHAFT MAIN BEARINGS: Ball
FUEL TANK CAPACITY: 620 ml (21 fl. oz.)
FUEL OIL RATIO: 40:1
RECOMMENDED FUEL OCTANE: Regular
MIX OIL SPECIFICATION: Stihl two-cycle chain saw mix oil
CHAIN PITCH: 3/8 (9.32 mm)
CHAIN TYPE: Stihl
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED: 33 cm (13 in.)
LONGEST GUIDE BAR SUPPLIED: 71cm (28 in.)
COLOUR SCHEME: Grey with Red top
 
Last edited:
Al Smith

Al Smith

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That looks like it came from Mikes site.Some of the hp,torque and rpm ranges are hard to find.I have a collection of McCulloch,Stihl And Homelite literature,but not all the ratings are listed.
 
Mange

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I think it is only fair to give credit when copying information. This is from Chainsaw Collectors Corner, no doubt.
Post a link instead, it is more fair.
raybow1 said:
This is what it sais about the 041 ave super

MANUFACTURED BY: STIHL ANDREAS MASCHINENFABRIK
STUTTGART, GERMANY
SERIES OR ASSEMBLY NUMBER: 1110
YEAR INTRODUCED: 1977
YEAR DISCONTINUED:
ENGINE DISPLACEMENT: 72 ccm (4.4 cu. in.)
NUMBER OF CYLINDERS: 1
CYLINDER BORE: 48 mm (1.89 in.)
PISTON STROKE: 40 mm (1.57 in.)
CYLINDER TYPE: Aluminum with chrome plated bore
INTAKE METHOD: Piston ported
MANUFACTURER ADVERTISED H.P.:
WEIGHT : 8.1 kg with 33 cm bar & chain
OPERATOR CONFIGURATION: One Man operation
HANDLEBAR SYSTEM: Anti-vibration
CHAIN BRAKE: Optional
CLUTCH: Centrifugal
DRIVE TYPE: Direct
CONSTRUCTION: Die cast magnesium
MAGNETO TYPE: Thyristor electronic system
CARBURETOR: Tillotson HS-138B series
MAJOR REPAIR KIT: RK-21HS
MINOR REPAIR KIT: DG-3HS
AIR FILTER SYSTEM: Flocked wire mesh flat element
STARTER TYPE: Stihl automatic rewind
OIL PUMP: Automatic
OPERATING RPM:
IGNITION TIMING: 2.5 mm (0.099 in.) before TDC
BREAKER POINT SETTING: none
FLYWHEEL/COIL AIR GAP: 0.2 to 0.3 mm (0.008 to 0.012 in.)
SPARK PLUG TYPE: Bosch WSR6F, Champion RCJ7Y
SPARK PLUG GAP: 0.51 mm (0.020 in.)
CRANKSHAFT MAIN BEARINGS: Ball
FUEL TANK CAPACITY: 620 ml (21 fl. oz.)
FUEL OIL RATIO: 40:1
RECOMMENDED FUEL OCTANE: Regular
MIX OIL SPECIFICATION: Stihl two-cycle chain saw mix oil
CHAIN PITCH: 3/8 (9.32 mm)
CHAIN TYPE: Stihl
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED: 33 cm (13 in.)
LONGEST GUIDE BAR SUPPLIED: 71cm (28 in.)
COLOUR SCHEME: Grey with Red top
 
spacemule

spacemule

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Stihl 041 super said:
same mine runs same compression, and I run amsoil saber 80:1 mix in it still smokes.
all ecept mine is an super. almost the same as yours kenskip.
What a coincidence--same as I run my Stihl 041 at and same oil. Except my Stihl 041 is a Husky, and my oil is Stihl 50:1. It's the same otherwise though. :cool:
 
raybow1

raybow1

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Mange said:
I think it is only fair to give credit when copying information. This is from Chainsaw Collectors Corner, no doubt.
Post a link instead, it is more fair.
Don't take it so personal. I was just trying to offer some helpful info. Talk about not fair; Why don't you just cry over it. Get a life and quit being so miserable. Is that info not for the general public to refer to? :cry:
 
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