6401BB Build up.

[MCW]

Well, I duno what happened. The vid is not there anymore? So I'm uploadng agan. But I'm going to bed. You'll have to check my youtube channel in a bit.

Good old Spewtube. It's done that to me before.

I'm about to upload a HD video of my other 7900 with BB kit vs. the pop upped new 660 in a really solid Casuarina log about 22" in diameter.

I now think the BB kitted 7900 is slow. Very slow in fact. I am now a Stihl fanboy and Huskys and Dolmars suck...



Not...

 

[parrisw]

Well here it is. Not much but its something.

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[wendell]

Looks good, Will!

 

[parrisw]

Looks good, Will!

Thanks. Now to see if it can cut wood!

 

[Metals406]

Sounds growly. :chainsawguy:

 

[Jacob J.]

Sounds good so far Will- did you do any work to the piston?

 

[parrisw]

Sounds good so far Will- did you do any work to the piston?

Yes, but not allot, smoothed out the windows, and opened them a little.

 

[parrisw]

Anybody know what these saws are limited to?

 

[Metals406]

Anybody know what these saws are limited to?

13,500???? Just a wild ass guess. . . Can you find out with a Google search?

 

[2stroked2smoke]

My 6400 coil limits out at about 13300.

 

[parrisw]

Thanks, guys, I guess I could find out with a tach.

 

[MCW]

The coils are limited to 13,500rpm Will.

Haven't checked your vid yet as on my phone and still got a 3 1/2 hour drive home

 

[parrisw]

The coils are limited to 13,500rpm Will.

Haven't checked your vid yet as on my phone and still got a 3 1/2 hour drive home

Cool, thanks.

The vid is nothing special. Sounds cool that's all. Can't wait to get it into some wood.

 

[parrisw]

Just checked compression and its at 175psi. Not too bad considering I raised the exhaust a fair amount, IMHO, that's perfect for a good work saw, don't think its really necessary to go beyond that, and it may come up a bit once its broken in.

 

[Andyshine77]

Compression will likely go up, with the stock P&C they often have 170 to 185psi.

 

[parrisw]

Compression will likely go up, with the stock P&C they often have 170 to 185psi.

What's exhaust timing stock? I raised a bit. This kit was at 105.5° its now at 99.5°

 

[mtngun]

What's exhaust timing stock? I raised a bit. This kit was at 105.5° its now at 99.5°

Ex 98, Tr 126, In 87, according to a respected member of a certain other forum (search thread titles for "port timing numbers"). Your mileage may vary.

 

[AUSSIE1]

Has anybody got a pic of the cases barrelless on these?

 

[parrisw]

Ex 98, Tr 126, In 87, according to a respected member of a certain other forum (search thread titles for "port timing numbers"). Your mileage may vary.

Really? I thought those were modded numbers. I find it hard to believe that it would be 98 on the ex stock.

Has anybody got a pic of the cases barrelless on these?

Ahh, had you asked a day ago I coulda snapped a pic.

 

[AUSSIE1]

Ahh, had you asked a day ago I coulda snapped a pic.

No probs Will, someone will have something