⚠️ Last edited by splash_wave on UTC; edited 2 times
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Any places to get forged vintage vespa parts? I'm looking for forged piston, crank, case etc... I don't own a vintage Vespa yet but I'm looking for parts to put in a vintage largeframe or smallframe.
⚠️ Last edited by splash_wave on UTC; edited 2 times
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Addicted
PK50XL, PK100S, ET3, Matchless G80S, Honda CBR400RR, Ducati ST4S
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Addicted
PK50XL, PK100S, ET3, Matchless G80S, Honda CBR400RR, Ducati ST4S
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How old are you talking?
Theres loads of aftermarket stuff for all sorts of models so unless you are after stuff for a really early model then i would have thought a look at any of the online scooter shops would give you loads of options. |
Ossessionato
![]() BV400, Primavera 150, Yamaha Zuma 125
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Are you talking about forged vs. castings? I would doubt that anyone makes forged parts where a casting will work just as well, as in engine cases, for example. Are original cast parts ever replaced with forged parts for performance reasons?
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Ossessionato
1997 Italjet Formula 125, 2 matching N.Z. '69 VBC Super, 177cc Racer, VespaCross Bodge, Puch SRA150, Piaggio Zip 100! & others
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Ossessionato
![]() 1997 Italjet Formula 125, 2 matching N.Z. '69 VBC Super, 177cc Racer, VespaCross Bodge, Puch SRA150, Piaggio Zip 100! & others
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Just to open this question up again.. I feel like a forged crank, rod and piston would allow me to ride wide open throttle for a longtime without blowing a hole in my piston or break a rod. It looks like no one makes them unless you go custom like through wiseco or je?
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Sergeant at Arms
![]() Weird 80's Vespas & Cool Vintage Lambrettas
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splash_wave wrote: Just to open this question up again.. I feel like a forged crank, rod and piston would allow me to ride wide open throttle for a longtime without blowing a hole in my piston or break a rod. It looks like no one makes them unless you go custom like through wiseco or je? anyway, people have been riding bikes WFO without lunching the motor on stock components for ages. it just comes down to the tune. but since you asked, a lot of after kits already feature a forged piston and most rods are forged. selecting good quality components and operating them within their specified parameters with a keen eye toward set up and tuning will go a long way in building a strong, reliable motor that you can thump on. |
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I think stock engines were designed to run at full throttle for extended periods. I also have the impression that they were somewhat detuned to be able to run that way.
Positive
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2007 Stella 225
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orwell84 wrote: I think stock engines were designed to run at full throttle for extended periods. I also have the impression that they were somewhat detuned to be able to run that way. |
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Molto Verboso
71' Sprint Veloce , 05' Vespa PX150, 1978 P200E
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Molto Verboso
![]() 71' Sprint Veloce , 05' Vespa PX150, 1978 P200E
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If you are looking to beef up your engine start with a complete top tier kit. I can't say is bulletproof because I had a Pinasco kit that seized a half a dozen times on me and one time just cruising at 45 mph it crumbled like blue cheese and like dry crackers. The pinasco suppose to have the all mighty nikasil liner cylinder but it also got grooved.
I have been running Malossi ever since and I haven't had any issues with neither the cast iron nor the aluminum kits. What type of riding are you looking for to demand forged components? for the most part a Malossi or Polini kit will do the job. |
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Ok. My next engine will probably be a vr-one with malossi 210 kit. I don't think my riding demands forged parts but hey I'd drop $500 for a forged piston for more faith in something indestructible.
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Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 66 Lammy S3
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Lucky
![]() 76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 66 Lammy S3
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Pistons generally fail because they're overheated to the point that the aluminum loses cohesion or because the timing is too advanced that the spark eventually drills a hole through the top of it. Forged vs. Cast isn't going to help with that.
Now connecting rods...that's something we can talk about. But, as Greasy said above, so long as you pick parts that are within spec for your build, it'll all be fine.
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Sergeant at Arms
![]() Weird 80's Vespas & Cool Vintage Lambrettas
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forged parts aren't a crutch for poor tuning.
you can run the best stuff in the world and if it's not set up right it'll still fail. if you push it beyond the design envelope the center simply won't hold. when building "performance" you have to think of it as a system. choosing components that work together is only one part of that system. |
The Dude
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I know largeframes as I had one 12 years ago. Installed a Pinasco 177 on my current Vespa. I know the port timings are crucial to tuning along with mixture.
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