Here is what I [think] I know about the P200e engine/transmission/wheel:
Circumference of tire 52" measured
Per published specifications:
Stated engine 12 hp @ 5700 rpm
Stated top speed 65 mph
Engine to clutch 23/65
First gear 12/57
Second gear 13/42
Third gear 17/38
Fourth gear 21/35
Published specs came from:
http://www.scooterhelp.com/scooters/VSX1T.p200.html
Have been trying without success to go from this known information to top mph in each gear. Except for measuring circumference of the tire I have excluded my calculations and - probably - mistakes.
So... How should I make these calculations? And is 5700rpm the engine redline or merely its point of highest horsepower?
Thanks!
Vespa P200e top mph in each gear...
-
- registered user
- Posts: 138
- Joined: Tue Oct 27, 2015 3:51 am
- Contact:
-
- registered user
- Posts: 1292
- Joined: Sun Dec 04, 2011 7:43 pm
- Main scooter: Li Avanti 225
- Location: York
- Contact:
You're close....... this link is from the same site, hope it helps:
http://www.scooterhelp.com/tuning/vespa.gear.calc.html
http://www.scooterhelp.com/tuning/vespa.gear.calc.html
-
- registered user
- Posts: 138
- Joined: Tue Oct 27, 2015 3:51 am
- Contact:
Thanks for the link!
It appears that my P200e is topping out about 4500 rpm.
It appears that my P200e is topping out about 4500 rpm.
-
- registered user
- Posts: 198
- Joined: Tue Nov 30, 2010 1:23 pm
- Main scooter: P200e
- Contact:
Do you know for sure that it has a standard gearbox?
If a previous owner fitted a t5 4th gear it would lower your top speed.
SF
If a previous owner fitted a t5 4th gear it would lower your top speed.
SF
-
- registered user
- Posts: 138
- Joined: Tue Oct 27, 2015 3:51 am
- Contact:
No, I don't know that the actual gears inside the case meet the published tooth counts. The scooter was running when I got it so no reason to split the case.
-
- registered user
- Posts: 138
- Joined: Tue Oct 27, 2015 3:51 am
- Contact:
What are the possible combinations with the clutch output gear and the Christmas tree input gear? The P200e default appears to be 23/65. I've seen clutches on eBay with as few as 20 teeth on the cog, with 21 and 22 more common. Have not seen any with more than 23.
To maintain the 23/65 mesh seemingly would require 68, 67, and 66 teeth on the larger gear. Don't recall having seen any of those.
To maintain the 23/65 mesh seemingly would require 68, 67, and 66 teeth on the larger gear. Don't recall having seen any of those.