The Arreche parts are easier for me to get. I have some detailed porting instructions on hand that will boost the hp output to approximately the same as a Polini Corsa, that I am also saving for a little winter project.Īs for the Arreche, I have used Dello's in the past, and really have not had a problem with either brand. It was a spare available to me, and like most scooter-crazed guys, I needed another toy to install on a rainy-day. That gives the T6 a nice 145-150 psi compression and still run on easy to get pump gas (90 octane or higher).
010" off the head is the max that can be obtained and still use the readily-available base gasket. Thanks for your straight-forward response. On a low to middle rpm setup i would use a c-16, on high rpm cilinders I would use a c-20, 21 or c30. So you see there is a lot of difference in rpm and the c-16 does well on many setups, the c-20 however should rev up much more, but this exhaust can not be put on every setup and run nice that easily.īut still, there is no saying of what exhaust doe best on what setup cause every setup is different.
On my minarelli with evo 70 (LC) I had a c-16 on it too and with this the max rpm was 13,800 rpm, but on another setup with manston replica the c-16 did only 12.000 rpm max. but this is a very low rpm scooter, so it also works nice on a low rpm scooter. I had a C16 on it and that was super, but with a c-20 it would have even worked better, so a c-16 can be used on a high rpm engine, this exhaust is now fitted on a simple setup on a Piaggio AC with simple Top Performances cast iron 70cc, 17,5mm etc. Hebo Manston replica with a 197 degrees exhaust duration If you have standard parts (not tuned) then I can only say of the exhaust should run nice on your engine ,not how it runs exactly.įor instance : with my NRG (piaggio LC) i had this setup : There is no real guideline, there are to many differt setups that can be created.
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