372XP X-torq 75cc Conversion & Porting

[RIDE-RED 350r]

Sounds like she's gittin' some pretty good! Dub dub dubba-ya!

 

[XP_Slinger]

Sounds like she's gittin' some pretty good! Dub dub dubba-ya!

Sooooo you comin down this weekend to do some cutting with your dubya?

 

[bikemike]

Saw sounds great. Hope it's what you expected or better

 

[XP_Slinger]

Saw sounds great. Hope it's what you expected or better

Thanks man. So far it's what I was looking for. Which is satisfying in and of itself when you're talking about exploratory port work.

 

[RIDE-RED 350r]

Sooooo you comin down this weekend to do some cutting with your dubya?

Not sure what if any plans are in place for this weekend. I should really see about getting the steering box out of the plow truck so I can swap out the pitman arm pretty soon ...fun

 

[blsnelling]

Sounds good!

 

[huskyboy]

Sometimes you watch a video and your like holy *s-word that thing runs! This was one of them

 

[drf256]

Nice job on the build.

Did you advance the timing at all?

I also think the lower ring woulda been fine, but like Brad said, you pick up significant rpm without it.

Saws with larger ports 4 stroke at higher rpm, generally. When you lay the bar in wood, you may be very surprised which saw chews it up better. I'm betting your saw pulls a longer bar better.

 

[XP_Slinger]

Nice job on the build.

Did you advance the timing at all?

I also think the lower ring woulda been fine, but like Brad said, you pick up significant rpm without it.

Saws with larger ports 4 stroke at higher rpm, generally. When you lay the bar in wood, you may be very surprised which saw chews it up better. I'm betting your saw pulls a longer bar better.

Didn't advance the timing yet. I had too much timing before with the XT top end and this project began with resetting the flywheel and snow balled into porting and swapping the cylinders...lol. I will be giving it some advance before cutting again.

Thanks for the compliment on how it runs. I'm quite happy with it, pulls good rpm in the wood.

 

[XP_Slinger]

Sometimes you watch a video and your like holy *s-word that thing runs! This was one of them

Thanks man! Sooooo glad it runs good after my intake brain fart.

 

[XP_Slinger]

Sounds good!

Thanks Brad!

 

[RIDE-RED 350r]

That's the other thing you forgot to mention about mine that's a little different than yours, mine has the timing advanced a little bit. Exactly how much I don't know...bout that much

 

[XP_Slinger]

Advanced the timin a bit and made a few cookies. Tuned the saw near the edge at 14k and it held a slight 4 stroke between cuts but it was getting close to not enough fuel. That dang hard maple makes white ash feel like butter. Anyway, it was holding 12k in the cut with normal pressure and running pretty good. I don't think the saw really needed the timing advance so I have since put it back. I gotta hit my chain again, my raker height is a little too low for wood that hard, with a burl in it no less.

 

[RIDE-RED 350r]

Yeah you can hear the 4-stroking slowly fade away between cuts as she got heated up good... Feckin hard maple! LOL! Sounds damn good though!

 

[XP_Slinger]

That ain't no joke. That's some hard stuff! But the "W" chewed it up nicely in my opinion

 

[dustinwilt68]

Very nice thread, been enjoying it, now my email alerts are working again, so I can stay updated. Great build! 254xp coming soon, I hope!lol

 

[XP_Slinger]

Very nice thread, been enjoying it, now my email alerts are working again, so I can stay updated. Great build! 254xp coming soon, I hope!lol

Thanks Dustin, this build was particularly satisfying for me because I did everything at once and I didn't have to pull the top end 5 more times to get the performance I wanted. Probably won't be building another saw for a while since it's time to start working my saws, gotta get muh wood done. When I do get tinkering again that 254XP is my #1 pick for a build. It will still be there on the parts shelf. Your 254 really got me wanting another classic saw, looks very strong for its size.

 

[dustinwilt68]

Glad to hear, if you need some used parts from my build, I would happily donate them for shipping cost.

 

[XP_Slinger]

Glad to hear, if you need some used parts from my build, I would happily donate them for shipping cost.

That's very generous and I will definitely take you up on the offer. I'll be in touch

Side point; I'm really itching to port my 288, oh boy. Lol!

 

[dustinwilt68]

Yeah I am looking forward to mine going to Tennessee in July.