I love my T5, it's great fun but lacks power up hills and in headwinds (the usual issues).
I'm considering getting a Malossi 172 kit as I've heard mostly great things about them (running it with a Sito Plus and standard carb). I don't want CRAZY top end, but a little more would help up top and more power down low.
My question is: can I run this kit with the original cylinder head without getting it modified – seeing as the Malossi fitting instructions say "The original head should be used as not to increase the compression ratio" ( http://www.scooterhelp.com/tuning/malossi.172.install.pdf ). It's one of the few kits that don't come with a head.
I know SIP sell a MMW head with higher compression to compliment this cylinder. Is this essential, or does it just offer better performance? It's quite expensive, so would rather fit one at a later date when I get the cash if it's only for optimal performance. However, I don't want the kit to go bang!!
Also, does anybody know the timing settings for the increased compression MMW head?
Any advice appreciated.