Tzed250
Addicted to ArboristSite
Anything worse than zero runout (on a .0001 indicator) is gonna cost some power. The bearing quality, crank flex, ,etc. all play into it.
In just about any racing; engines run their best right before they go as they loosen up too much.
Just a little food for thought before you dismiss this statement.
I would also think that "break in" has as much to do with the bottom end as the top end.
I personally think that there is some trueth to this. I have rebuilt literally hundreds of low ends and have seen first hand that some are tighter than others. Now this could be, because of condition in the factory with tooling or even how it was put together, maybe because some one had a hang over. Just about every tech in here will tell you that some time there is a minute amount of bind on the crank shaft. This is no big deal and happens with all saws but as the saw breaks in, so do the bearings if they have any bind.
I have gone so far as to put a self alligning bearing in one side of the case to help.
In just about any racing; engines run their best right before they go as they loosen up too much.
Just a little food for thought before you dismiss this statement.
:hmm3grin2orange: :hmm3grin2orange: Not allways, but in this case, yes.......
Beings you been a builder for a while how do the 395's hold up to mods, IE, Woods Port and all out racing?????
In stock form I believe the Stihl out class them in all but the antivibe catagory.
Timber since your new found love with the chubby 395 ..
Could you post a couple picture of the 660 and the 395 top and side views sitting next to each other....
I'll give ya 50.00 each for all your Stihl's that way you can be happy ......I just dont want to pay to much for the lessor brand.
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I may have mentioned this before,but I also did a comparison inside of a comparison here.....I started the day with two full 2 and a half gallon jugs full of gas,and two full gallons of bar oil for each saw.....The 395 uses a helluva lot more gas than the 660...At the end of the day,the 660's jug was still half full....I blew through 3/4 of the jug with the 395..But each uses about the same amount of bar oil...And man,I'll be sore as hell in the morning...I haven't had to chunk wood like that by myself all day long in quite a while....I've been spoiled rotten by the grapple truck and the new holland.
I would have helped to run one of those saws in return
Great story!!! Real live feedback.
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