Oil mixture changes??

Quesiti tecnici riguardanti l'Ape anni '50, '60 e '70 (telai A, B, C, D, E, MP) / Technical questions about Ape in the fifties, sixties and seventies (A, B, C, D, E, MP chassis).
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Raffspeed
Apista aspirante
Messaggi: 9
Iscritto il: 22 dicembre 2013, 17:31
Ape owned: APC1

Oil mixture changes??

Messaggio da Raffspeed »

I have been reading a little on the history of the Ape.

Apparently at some point the oil mixture changed from 5% to 2%?? What were the changes that made this possible?

Also, I am planning to tune my C model a little, perhaps fitting a 7 spring PX clutch as well as either a ported standard type cylinder or maybe a pinasco faro basso one. Is there a possible simple crankshaft upgrade I can do?? I am also thinking of fitting electronic ignition so a later crank would be great if possible? Are there any other cylinder upgrades that have been done to the C? I may even make a simple expansion chamber to help increase the power, has anyone done this on an AC2 or AC3?
DavidRaeder
Apista aspirante
Messaggi: 8
Iscritto il: 23 maggio 2017, 5:12
Ape owned: AC3
Località: Curitiba, Brazil

Re: Oil mixture changes??

Messaggio da DavidRaeder »

Hi Raffspeed! I intend to do this also on my AC3, Pinasco 160 is a good choice.
The piston ported engines are 5%. The rotary valve emgines are 2% with some excetions.
Ape AC3 1961 - Vespa VB1 1960 - Vespa PX200 Elestart 1988 - Vespa Super 150 1979 - Vespa GS160 (replica)
*brazilian versions
%(^
Miami
Apista apprendista
Apista apprendista
Messaggi: 51
Iscritto il: 9 aprile 2012, 21:57

Re: Oil mixture changes??

Messaggio da Miami »

Raffspeed ha scritto:I have been reading a little on the history of the Ape.

Apparently at some point the oil mixture changed from 5% to 2%?? What were the changes that made this possible?

Also, I am planning to tune my C model a little, perhaps fitting a 7 spring PX clutch as well as either a ported standard type cylinder or maybe a pinasco faro basso one. Is there a possible simple crankshaft upgrade I can do?? I am also thinking of fitting electronic ignition so a later crank would be great if possible? Are there any other cylinder upgrades that have been done to the C? I may even make a simple expansion chamber to help increase the power, has anyone done this on an AC2 or AC3?
There is an electronic kit available for the AC, although it's more of a reliability rather than performance upgrade. On that note, I've been running the same points, condenser and coil in my AC1 for almost 8 years without any issues I don't think it's worth the 300 euro expense. Also, with the new synthetic pre-mix oils you can run it at 3% and be ok.

Regarding all the performance mods, they're all useless unless you can change the gearing, which you can't. You'll end up spending a lot of time and money to kill the reliability without any gain in speed.

If you want a fast ape get an ape50 pull start model, I have a pull-start TL4 with a malossi 130 kit, crank, taller gearing, large carb, malossi reeds, expansion chamber, etc... it's super-fast (for an ape) and they're easy to work on, easy to get parts for and cheap to begin with.... and if that's not enough you can always stick a Honda cbr600 engine in it.

alex
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