boost port windows in pistons?
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- paulpauly7
- CB900F

- Posts: 1684
- Joined: Tue Feb 21, 2012 6:57 pm
- Location: nz
boost port windows in pistons?
I have noticed the boost port windows in the dio bbk pistons.Is there any gains to be had in adding some of these to a piston that does not have them. IE the spree piston or the variated AF05E? Stock not bbk
86 Nifty Fifty (spree)
ZX disk brake
Kitico 120kmh speedo
AF18 ZX ported
Polini corsa
Malossi crank
CTmani
24mmOKO
40pilot118main
Scorpion pipe
8.44 to 1
Michelin s1
71.3mph
92 yz125, 94 crm250
ZX disk brake
Kitico 120kmh speedo
AF18 ZX ported
Polini corsa
Malossi crank
CTmani
24mmOKO
40pilot118main
Scorpion pipe
8.44 to 1
Michelin s1
71.3mph
92 yz125, 94 crm250
Re: boost port windows in pistons?
Only if the kit was designed to have one. That's why some bbk don't have them and some do.
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Thanks to my sponsors
Nos Energy Drinks,themopedcompany.com,nwautoevents.com,Cycle Gear
90 honda dio sp 72cc
87 elite 50 s with 86cc watercooled mini stroke
87 elite 50 race bike mhr 72cc
91 yamaha tzr 250r