Development of a new Vespa exhaust system - the Vespa BigBox from Scooter Center
After we and Mark have brought the Lambretta BIG BOX so far that we can only wait for the manufacturer and, at most, issue reminders, we sent a few sets of PX exhaust shells to Doncaster.
Mark has all of his ideas regarding PX BIG BOX implemented directly after the Eurolambretta. On Monday morning the PX 200 BIG BOX was finally here in the store. A few minutes later the test bench computer started and the games could begin.
Vespa exhaust big box test
It was tested on:
- Malossi Silverfern known from the blog and a pleasant sports tourer
- Original cylinder tuning with 60 mm bgm shaft and SI26 carburetor
- POLINI 207cc cast
- POLINI 210 known from our blog and a torque miracle
- Malossi 210 first choice tuning
Vespa exhaust performance charts
Here is a small selection of diagrams. Uwe did a lot more runs that we will post over the next few days.