Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

Check out @rankinepreformances on insta, he made my bravos airbox. I know he makes a sweet metal one for the si that mounts to the frame. But also idk if you're keeping all the variables the same for both bikes, like same size/type carb, same intake and filter etc. And then just only making the engine be different. From what I understand, the simo cdi and the malossi cdi are made by the same company. Idk if thats 100% church, but someone smart told me that

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

Thank you! I was just given his name earlier today about an air box. He also makes extended PHBG float bowls that might be a nice touch. Appreciate you looking out for me!

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

Spent some time today mocking up the MHR pipe a little and replacing transmission gearing. Side play came out nice and is tight as everyone has told me with the overange kits. Shout out to cheetahchrome for the beautiful transmission rebuild tutorial.

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Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

Dirty30 Dillon /

> capo_dei_ bois wrote:

> -------------------------------------------------------

> Well it's good he shipped something to you, he refused to ship me a

> brake kit in spring of '21.

GPR has refused me before as well.

Got to mention DBR stealing $500+ from me after deciding he just wasn't going to ship me the two subs and rear var brace I ordered. Whack

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

Good lord! We are not worthy! This is gonna be epic.

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

Ordered an airbox from Fabio Forni and an extended cnc'd float bowl for a PHBG.

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Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

I am wondering what people have done for forks on their Si. I have a set of preload EBR's I could try but Si's are a weird 40mm ID head tube. I have seen Euro dudes with pit bike stuff (but don't know specifics on them). Has anyone done a fork swap on a Si? If so, any tips or what? Thanks.

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

> Gator San Juan wrote:

> -------------------------------------------------------

> Two bikes with all this stuff. I will never financially recover from

> this. 😅🚀

🤣🤣🤣🤣🤣🤣🔥

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

I’m not finished with my bike, but I swapped my Si forks for Grande forks! I basically lathed a spacer that slips over the triple tree post, and sits at the top. Then used Si headstock bearing assemblies, which actually spaced out perfectly. I tried a few ways and this looks the best IMO.

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Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

Hopefully that airbox doesn't take a month to show up like mine did. Does the si have the 25.5mm headtube?

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

Si was a 27mm tube!

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

No. This one has a 27mm tube. However, I think I have a solution for EBRs.

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

Turns out the EBR's were not the move. I checked with some friends in Italy and they told me most everyone runs pit bike forks. Joe suggested that too and I thought what the heck - let's see! I bought these:

https://www.amazon.com/dp/B077ZJHMDL/

and they for sure fit nicely!

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Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

And they match the bikes colors, even better

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

I’m interested to see what you think about those I’ve always wanted to try a set just never pulled trigger

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

What’s he wanting for those air boxes? I’m gonna snag one for my build as well. I like the idea of having quick controls on the airflow for rally runs

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

$150 for the box plus shipping?

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

Not bad at all considering the engineering! Thanks man

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

Yea 150 plus shipping. The one he 3d printed me is made of abs or something, it's pretty solid. But it actually works as well. Just twist the nob and you can notice the difference in richness choking some air out makes. I made a thread on here of all the boxes specs, I'll see if I can find a link

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

Wow - thanks for adding this.

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

Working on the engine. This cylinder might be the most insane I have ever seen. There is some serious swiss cheese happening here.

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Beautiful quliaty IMO.

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Gonna do the 27mm exhaust for the MHR pipe.

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Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

All the windows

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Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

I opened mine up like it was Christmas morning.. the quality and porting is unreal. I’m super stoked to get it built! My dumbass forgot to buy bearings so I’m waiting a minute to assemble 🙄

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

All together.

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Now for a leak-down test with Michael Buble machine. Years ago I made this leak-down tester out of a blood pressure cuff, some brass fittings, and a step-down hose. You can pick all the fittings etc off Amazon, including the digital readout. Best $20 I have ever spent building bikes.

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Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

Okay, that's awesome

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

That’s what I’m saying.. I’ll absolutely be making one! It’s genius

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

Does the gauge read vacuum? The cheap, used to be ubiquitous manifold vacuum gauges work well, just basic analog stuff.

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

It doesnt. Just basic pressure.

Re: Vespa Si / Malossi MP-One vs. Vespa Bravo / Simo

EH 📣FCC of the QCB /

This is bullshit! I did not get to hold it in my hands and admire the ports🤣🤌🏻

It looks unbelievable. Can’t wait to see this thing in action.

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