nb50 stroker crank????

scooterwerx · Post by **scooterwerx** » Tue Dec 23, 2008 2:03 am

im jonesin for more power. are there any nb/se50 stroker cranks? is there any way to adapt an sa50 crank to nb crankcase? i know the nb/se and dio motor share many parts...the variator being one, so do they have a similar crank?

veedubh20 · Post by **veedubh20** » Tue Dec 23, 2008 2:23 am

you cant use sb50 kicker cover .

scooterwerx · Post by **scooterwerx** » Tue Dec 23, 2008 2:24 am

are the sa50 ones interchangeable?

timcat · Post by **timcat** » Tue Dec 23, 2008 2:29 am

i dont belive so thats not how u get more power explain to me what your trying to do exactly and maby i can help?\\

scooterwerx · Post by **scooterwerx** » Tue Dec 23, 2008 2:57 am

stroker crank=more displacement and bmep=more power

Post by **noiseguy** » Tue Dec 23, 2008 10:43 am

The '94 - 02 crank is not interchangable with the earlier Elite. You might try one of the EU / UK scooter part sites to see if the parts are available there. It will not be an easy upgrade path.

scooterwerx · Post by **scooterwerx** » Wed Dec 24, 2008 2:26 am

yeah, i know it wont be easy, just wondering if it would be minor machining or if it just wont work at all....

z50r-ghost · Post by **z50r-ghost** » Thu Jan 15, 2009 12:49 am

don't quote me on this... but quite a while back i did see a Phongeer "PG" stroker crank for the 86-87 NB50 / SE50.

overseas, the '85-'87 Aero 50 is called a "Vision."
i know that the 85-87 Aeros look identical to the Vision in Europe.

you will rarely see performance parts listed for the Aero 50, but if you see parts listed for the Vision, you have a 99% chance of the parts working on your Aero's bottom end. Malossi has quite a few parts listed for the Vision on their site.
keep in mind that the '85 Aero had a TOTALLY different engine than the '86-'87 Aero - so i would assume that the Vision did as well too.

anyone correct me if i'm wrong.

later, jc

scooterwerx · Post by **scooterwerx** » Thu Jan 15, 2009 1:50 am

haha, thats where ive found almost everything for my aero so far...no stroker on malossi, that i have yet found

SprEE*MP* · Post by SprEE*MP* » Thu Jan 15, 2009 7:40 pm

While were on the topic of strokers...To get things cleared up...theres NO stroker mods for a Spree right?....theres no PURCHASEABLE mods either right?

Kenny_McCormic · Post by **Kenny_McCormic** » Thu Jan 15, 2009 9:19 pm

There are NO spree specific aftermarket parts. An adjustable timing aftermarket DIO CDI is a plug in.

Carbs are carbs, you could (in theory) bolt a tilly straight to the reed block and do away with the manifold.

With some modding a SE50 bore kit is suposed to fit(it bolts on but the pop up is -5mm) probably enough meat on the deck/first fin to shave it.

Front pulley can be modded for taller gearing, with a macine shop at your disposal a variator is possible(although nobody has done it yet).

You can port any motor.

Tuned pipes can be made or modded to fit.

scooterwerx · Post by **scooterwerx** » Thu Jan 15, 2009 11:25 pm

hmmm so this means that sb50 shares the head stud pattern with nb/se50?