288xp, 385xp or 390xp??

[Onan18]

I thought tyre 390 have the same crank as a 395, is that wrong?

385/390 crank is almost the same as the 372, late 181/281/288/394/395 same crank.

 

[Lightning Performance]

'LOL! Common thing for me too

I cut faster than I type.

Quote dat *s-word!
Joe has the "scoop" here. I'm going back to my corner now

 

[awol]

Here lately I have been able to get way more performance out of the 390 than a 385. Or a Jonsered 2188, same as a 390.

 

[Onan18]

Didn’t the earliest 385’s have issues with the bearings or something?

Not that I recall Mason but possibly? @Spike60

 

[awol]

385/390 crank is almost the same as the 372, late 181/281/288/394/395 same crank.

Yes, and with very little work a 390 crank will slip into a 372........

 

[Onan18]

I cut faster than I type.

Quote dat *s-word!
Joe has the "scoop" here. I'm going back to my corner now

I am just a mechanic.

 

[RIDE-RED 350r]

Yes, and with very little work a 390 crank will slip into a 372........

WOW!!

IDK 372 stroke off the top of my head, but I assume it's shorter because why would anyone work over a 385/90 crank to fit.. 372 stroker?? That's one pissed off 372 AWOL!

 

[huskyboy]

Nice “muffler” too

 

[awol]

WOW!!

IDK 372 stroke off the top of my head, but I assume it's shorter because why would anyone work over a 385/90 crank to fit.. 372 stroker?? That's one pissed off 372 AWOL!

36mm on 372, 37mm on 390.

That "372" also has a 390 cylinder.

 

[RIDE-RED 350r]

I'm guessing the smaller case capacity really gets things going in a hurry! (as evident in your vid)

 

[Lightning Performance]

I am just a mechanic.

Wrong. Your the wrench with knowledge you give away like popcorn to birds. That is worth far more than any bolt burner. Plus your a nice guy and people like doing business with you.

 

[Lightning Performance]

Yes, and with very little work a 390 crank will slip into a 372........

36mm on 372, 37mm on 390.

That "372" also has a 390 cylinder.

@awol stroked and poked, zweet.

 

[jacob j.]

Yes, that is incorrect. 288, 394 and 395 have 1mm more stroke. Seems like early 288 cranks were different, but later 288 and 394 cranks are drop in interchangeable if I recall correctly. If I am wrong on that, someone correct me and I will edit this post so as not to cause confusion.

Correct and the early 181 crank was a different animal entirely. If a guy could convert the 395 crank to inboard clutch and then drop it into a 385/390, then you'd have something.

 

[Marshy]

Yes, that is incorrect. 288, 394 and 395 have 1mm more stroke. Seems like early 288 cranks were different, but later 288 and 394 cranks are drop in interchangeable if I recall correctly. If I am wrong on that, someone correct me and I will edit this post so as not to cause confusion.

Why not build a stroked 385? Have you or anyone thought of that?

Edit: jusding by the post above mine it's because clutch differences. Never mind...

Unless you feel like press g a crank apart.

 

[RIDE-RED 350r]

And I don't think pressing the crank apart is the trickiest part, it's getting it back together properly trued that is the real trick. Not that getting one apart without damaging it wouldn't be tricky enough

 

[RIDE-RED 350r]

Alright, so other than Awol's evidence of a very strong 2188/390, I'm kinda leaning toward doing a 385, but by all means the more input and conversation the merrier. This subject is not remotely closed as of yet.

Honestly, this is something that probably won't get the full treatment right out of the gate. I'll likely just overhaul it and get it back going in stock or near stock config leaving heavier mods for a bit down the road. Kind of want to get a feel of it in stock config so gains from heavier mods can really be realized and appreciated.


So......385 vs 288???

Let the Hooray 288 posts commence! LOL!

Actually, I'm kind of shocked we are two pages in and not one "Hooray 288" comment yet!

Maybe the thread title is keeping it incognito to the 288 aficionados.

 

[RIDE-RED 350r]

OK, edited title... lets see how long it takes now... LOL!

 

[Onan18]

HOORAY 288!!!!!!!!!!! There, done did.

 

[RIDE-RED 350r]

Joe, I'd send you a free part of some kind as a door prize, but I don't think there is anything I could send that you probably don't already have in triplicate!

 

[Lightning Performance]

Correct and the early 181 crank was a different animal entirely. If a guy could convert the 395 crank to inboard clutch and then drop it into a 385/390, then you'd have something.

Somebody needs you on retainer advisement for next year. Now, what crank needs to be used in what case with which clutch in your humble mechanical opinion? Fire away Joe. How would your cross-breed come out? This just got real interesting.