Cut4fun
Redneck Chainsaw Repair
- Joined
- Nov 27, 2007
- Messages
- 2,635
Just one of the banned places. https://firewoodhoardersclub.com/forums/threads/ms462-review.27534/
Yah ... when you process firewood or are logging you aren’t making $ when the Saw isn’t cutting ... If a stock Saw gets 15 min of run time and produces “x” and builder 1 gets 1.3x but with an 8 min run time and builder 2 gets 1.3x with a 12 minute run time which Saw am I going to run ?I am curious, what does fuel usage have to do with it? Everything I’ve seen you accomplish the same amount of work with a modded saw vs a stock saw by the increase in engine output. You also need to increase fuel usage to cool the engine because of the increase in output. I can’t say I’ve ever heard a saw builder, or modded saw user, ever give a rip about fuel usage, just work that got done.
exact percentages ? As far as cutting speed I test the stock saw in a chunk of hardwood with a brand new off the roll chain and record times via video; then do the same with the muffler modded/gutted,tube exhaust deflector etc , then do the same with intake / filter mods (or bore carb if need be ) ... at this point I assess my gains ... I’m usually up 12-18% at this point depending on the model (Ive only done the STIHL Pro line but expect similar gains with other manufacturers saws) after I’m satisfied I’ve gotten all I can the mods/porting process begins and more testing , testing and finally more testing ... Fuel usage is quite simple to test actually ... a graduated beaker with a known qty of fuel is added to the chainsaw and a series of cuts are made , fuel is then removed from Saw and measured in beaker ... this difference is the amount of fuel used ... All things being equal I prefer porting/mods to give not only great gains but great mileage/ fuel economy as well ! Imho the limiting factor on chainsaws is AIR thru the engine ! More AIR more torque/power ! Your mileage may varyHow do you get the exact percentages? Are people recording and building a database on use and consumption?
is it too early for cold-ales lolToo early to math!
My point is all things being equal I prefer more power AND great mileage ! If you can get BOTH why not ?Again, dont GAS about runtime, how much production have I gained?
I get your newish, but Ive had a little practice at this myself. Do some digging, my user name is around, Ive actually built a Husky 350 that would outrun all but a piped 346xp. Ive owned one of the nastiest BB 046 builds youll come across. Actually sold it to a member here, but as I didnt build it, I cant take any credit.
But Ive also got a set of twin Dolmar 5100s, Yeah! You wanna play in the 50cc world, these things are nasty!
Again, no one gives a rip about fuel economy, either the saw increased production, or it didnt.
Im not picking sides and smelling armpits with you, Im just saying Ive heard BS and Ive run saws that back that BS up!
Yah ... when you process firewood or are logging you aren’t making $ when the Saw isn’t cutting ... If a stock Saw gets 15 min of run time and produces “x” and builder 1 gets 1.3x but with an 8 min run time and builder 2 gets 1.3x with a 12 minute run time which Saw am I going to run ?
I addressed your first question above regarding fuel , Feeding a Saw “lots of fuel” doesn’t necessarily make more power especially if said fuel goes straight out the exhaust port or cannot contribute to combustion ... As far as the “hows and whys” that info will stay behind the shop walls ... If you wish to learn this skill I suggest you read all available books on the topic ... it’s a learning curve that can be quite expensive (fried cylinders, pistons, lathes mills tooling welders etc ) ... That’s why a lot of guys just pay someone else and run the piss out of the saw , when it’s down on juice sell on eBay 1/2 price, rinse and repeat ... I think you’ll find the best porters are guys who actually USE the saws to earn a living ! These folk KNOW what works and more importantly what Doesn’t work as they use the saws regularly ...