150 Stella 2005
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P200E
Joined: 11 Jul 2017
Posts: 8
Location: U.S.A.
Thu Jul 11, 2019 6:12 pm quote
What, if anything is different about the 150 stella engine over the P200E engine? Other than Carburetor and piston displacement?

If the gearing is the same, I was thinking of getting a number of upgrades for the 150, like Malossi, SIP, whatever and tricking the engine out to a 225cc.

Thoughts?
Molto Verboso
Joined: 26 Oct 2015
Posts: 1463

Thu Jul 11, 2019 7:31 pm quote
The short answer is that most everything is different, and it can't be done. Most of the transmission parts do interchange, but the gearing is different between the two. You also shouldn't run a bunch of HP though a LML transmission. The metal isn't as durable as the Piaggio EFL parts.

Last edited by whodatschrome on Thu Jul 11, 2019 8:25 pm; edited 1 time in total
Hooked
05 PX, 80P200, 63Li150, to many others
Joined: 02 Dec 2008
Posts: 386
Location: New Orleans, LA
Sun Jul 14, 2019 11:22 am quote
Its all different. Your not going to be able to bolt up a 200 anything to a Stella case. Gearing is different. Some parts are interchangeable but not everything. Stella engines are not known for quality components or build quality either.
Ossessionato
05 Stella, '62 VBB, 76 Sprint V, 63 GL
Joined: 16 Jun 2011
Posts: 2079
Location: Chicago. Well, Evanston, but that's almost Chicago
Sun Jul 14, 2019 1:47 pm quote
If you want a 225, you'll need to start from P200 cases. Otherwise, you're just asking for pain because nothing will ever fit right.

That being said, you CAN run a lot of horsepower through a Stella, and if you want to get serious about it, the reed design of the case is a superior starting point.

HOWEVER, once you get finished, you won't have much left in the way of Stella parts left other than the cases. I have a 25HP motor which started life as a Stella. It's the one with the blown-up axle over in "Today, I..." I have replaced every part in the motor with high-performance parts except the gears, and I need to replace, at a minimum, 1st and 2nd of those.

So it's not that it can't be done, it's that you can't easily do it without going all-in.
Addicted
Stella 2T, P200, Rally 180 Euro
Joined: 06 Jan 2014
Posts: 569
Location: Camden, ME
Sun Jul 14, 2019 2:20 pm quote
JoeP wrote:
Its all different. You're not going to be able to bolt up a 200 anything to a Stella case. Gearing is different. Some parts are interchangeable but not everything. Stella engines are not known for quality components or build quality either.
I would say the opposite, I have beat on my Stella for years with 2up it's still going strong. Can't say the same for my P200 that sucked a clutch side crank seal in at 1,700 miles.

As for the original topic, the Stella can have some really good power for cheap money. Not something to stay away from just for the lure of a P200, especially when the Stella has front disk brakes, which is a vast improvement over drum.
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