Affiliate Links to the best prices I could find:
Roller weights: https://goo.gl/L0aoIk
Hi Flow Filter: https://goo.gl/CrH6T1
Welcome back to another episode and thank you for all the subscriptions. Please don’t take these episodes as a how-to on making your bike go faster. They are not. Everyone has different needs and criteria on what they want out of their bikes. For me, I ride this bike primarily to work in stop & go traffic and in mostly ideal condition without rain, dust or snow. These videos serve as a documentary on how my 50cc Piaggio Typhoon 2-stroke scooter nearly doubled it’s acceleration and increased top speed from 30mph to ~60mph with just a few simple mods – most of them are free and only requires your time and knowledge.
With the Leo Vince 5.7g roller weights installed, let’s go for a test ride. A word of caution, however, is that the brand new roller weights will take some time and miles to break-in properly before optimal performance is achieved. We’ll do a first impression regardless, and and see if it improves or weakens the bikes performance. Aiming for Piaggio’s suggested maximum horsepower output of 9500RPM, we still have room to push the engine to work harder giving us more acceleration and top speed. Currently with the stock weights, the CVT tranmission operates at around 8300RPM after improvements made to the engine output. The lighter weights supplied by Leo Vince should help us move the engine to the RPM for which the two-stroke exhaust was designed for and also the peak HP for this specific engine. Never would I expect this bike running on 10 inch stubby tires to achieve nearly 60mph in close-to-stock form.
In this video, I also demonstrate that the rule you always read from scooter tuners regarding “lighter weight=acceleration, heavier weight=top speed” is far from the truth. While it indeed holds validity to some extent, this video shows you how going down to a lighter weight and in this case the more optimal roller weight setup for this engine, this environment, and this scenario will yield BOTH improved acceleration AND top speed. The common misconception that selection of rollers weights for one or the other is not entirely true.
Most manufacturer install stock roller weights that are far too heavy to optimize fuel economy and engine longevity with performance.. It turns out Piaggio uses 6.5g stock roller weights in this 2005 Piaggio Typhoon. Leo Vince supplies 5.8g weights so might as well give it a try before I purchase even lighter roller weights! Piaggio report this engine makes peak horsepower at 9500RPM. With that said however, Leo Vince never really supplied any information at which optimal RPM this expansion chamber exhaust pipe is designed for.
Hope you find this video helpful and please like & subscribe for further scooter tuning videos!
If you want your bike to bury the speedo needle like ours did in Episode 1, subscribe and stay tuned for future episodes. We will show you how we derestrict the bike from factory, install the Leo Vince ZXR exhaust, open up the intake, and modify the transmission. Come along with us as we transform this little 50cc scooter from a slow and boring bike to a fast and peppy machine that will do circles around traffic!
Other bikes that shares the same platform/engine includes Vespa, Piaggio, Aprilia, Peugot, Gilera, TPH, Typhoon, LT50, LX50, ET50, Scarabeo, Stalker, Zip, Fly, etc.