Honda Dio 2 Buildout Help - AF18E

[hippo008]

Hi there,

I'm building my first Honda motor coming from the Jog/Minarelli world. I'm planning out my build right now. I'm looking for something reliable that won't require any serious case machining for the crank webs. The current plan is a Polini Corsa Ministroker with the 43.4mm ScooterTuning crank, a Stage6 big valve intake and some combination of pipe and carb. This is where my experience fails me. Carb and pipe sizing have been a challenge for me. I asked around and here's what I heard.

The PG Short pipe is recommended. The Arrow Limited is also fairly good. Any recommendations?

Carbs are huge on Dio setups, people seem to like 26mm flatslides a lot. I'm not sure what to use. It's left me scratching my head.

As for the CVT setup I'll probably end up with the oversize ZX kit unless there's a better option out there.

Here's my scoot. Very excited for this JDM beauty. https://i.imgur.com/y9cLaAM.jpg

[Meatball]

Skip the mini and go with stock stroke. Much easier to tune and the gains with mini vs stock crank is minimal unless youre going for timeslips at the track.

24mm carb is plenty big for Corsa. No matter mini or stock crank. Anything bigger and youre just wasting fuel.

[hippo008]

Hi there,

I'll skip the mini stroker then. Carb sizing is a bit of an issue. Should I go down to a 21 then? I like the Dellorto PHGB carbs already.

As for the pipe I'm not sure what I want. The PG short and Arrow both seen good. Any suggestions?

[Meatball]

The Arrow is double the price of PG....and worth every d*** penny. However, the PG is a good pipe for a budget build. Depends on your bankroll. The Dellorto carbs are good quality but my heart is with Polini. You cant go wrong with either brand. I think 24mm is the sweet spot for the Corsa but you can get 21mm or 26mm to work fine...any bigger or smaller then that is no bueno. My mini-stroked, race ported Corsa build didnt like a 28mm Pwk but when I switched to the 24mm it tuned easily and rips. Same carb I use on a basic “bolt-on” Corsa build. The bore just likes the 24.

[ntonar]

I agree, skip the mini stroke crank. If you want to do a crank the Malossi is a great and d*** near Indestructible, I will run an arrow of the PG for performance. The only downside to the arrow is that it’s a bit loud compared to the PG.