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i am building a malossi case with malossi crank, i need to pick the kit and order it so that i can match the ports. which of these kits would you guys recommend? any other recommendations?
in the end, i think i’ll be using either a 20mm or 22mm mikuni carb and a simonini calibrata pipe.
i already have the malossi variator and malossi gearset in the rear wheel.
thanks guys!Hard to say both cilinders dont match the ports so well. The best is to get a 47mm DEPS malossi which does match the ports.
But i would go for a 46,5 then because people have problems with the athena cilinder!
RebelYou need to say problems with the 43mm Athena
You want the 46mmI think the Athena is more of a challenge because everybody is using the 80cc Malossi.
i advise you the 46mm from Pinasco, i think thats a very special cilinder.
and a fast Aluminium one;)
there are problems with athena with the 43mm, not yet found @ the 46mm but who knows…
and yeah, you should try to get a DEPS, it’s hard but then u have a very FAST and SPECIAL one:Dwhat is the deps?
is 46mm = 80cc? 43mm = 70cc?
and no matter what kit i run, it will be unique for the states. there are very few tuned vespas, even fewer ciaos, and EVERYONE here runs polini.
If you go by the real cc’s 43mm = 63ccm i just say them in measurements so a 43mm and a 47mm cilinder.
The deps is 47mm and uses a butterfly exhaust port ( deps = Dual Exhaust Port System ) and is made for the malossi crankcase. But there is 1 problem you cant buy them new anymore there out of production.
Only 1 site i know sells them for 300 euro’s which is a allot of money i think i should go for a malossi 46,5 or if you really want to go for a aluminium cilinder i should pick the 46mm pinasco
Deps=Dual exhaust port system, fancy name for a rather small exhaust port(split in half, in dutch we say ‘vlinderpoort/’butterfly port’ ).
The only shops that still sell them are http://www.polini.ch and another swiss shop, for a lousy 200 euros+ customs bonus and what not.
I think pinasco is the best option as well, because the little transfers probably match the crankcase’s quite well, and you have enough space both on the case as on the cylinder to make nice ‘boosters'(the top transfers are closed).
It’s a decent and fast cylinder(especially with the boosters opened).
is this the pinasco you speak of?
the port mapping doesn’t look all that impressive, not compared to some of the others. and the transfer ports look kind of small.it isnt “the bigger the ports the faster the cilider” 😉
and yes, that’s the one.i understand, i’m just worried about them matching up with the malossi case. if the ports in the case were smaller, no problem. i can port a case easy. the cast steel kit, on the other hand, is hard to match to the case. but, i have the tools to do it, so it’s not THAT big of a deal, haha.
what would be the best pipe to match with this kit? and what size carb? i’m mostly going for top speed.i dont know anything about side-inlet kits, sorry.
i think if u will tune a cilinder you can better buy the 46.5mm malossi.
cause its not from aluminium you can make a 27mm exhaust flange.
so it will work alot better with that.
the best exhaust is the Simonini Calibrata, and if ur making the 27mm flange you can get the 27mm version of it!:Dcorrect me if i’m wrong please 😉
A 19 will do, i think a 21 will do fine as well, bigger carbs won’t add much I guess because the transfers and exhaust port are too narrow.
Porting isn’t impressive, still it’s a good kit, and the main transfers of the malossi case are small too. Actually I still have to test mine, but I have good expectations:)
I too think a calibrata will be the best pipe for this setup, unless you can have one calculated and fabricated by a specialist with a dyno.
There is a 22 and a 30mm version available, any other size flange has to be home welded.
what is a side-inlet kit?
i can tune well, i can also tool the main transfers on the case to match what ever cylinder i use, as i can also tool the cylinder to match the case.
edjuh, the transfer ports being narrow are a reason i was doubting that kit, but i don’t have much experience with tuning vespas, so i’m looking for all of your guidance.so if i am looking for maximum fuel/air flow, the malossi 46mm is where i should look?
no, i think the pinasco.
this is a side-inlet:
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