pipe length for .12 rigger

[nitrotwin]

I have a home built rigger need pipe length running a .12 picco side exhaust a upgraded carb from a .15 picco

(.5mm larger than stock) Macs muffled 2.5 pipe and a 215 prop s/b.Thinking about starting at 8" Thanks

 

[Russell Bear]

If you don't get any hard recommendations by others that have a similar setup, let's start at the 8" and see what it does. We can go from there. No facts, but I am guessing we will be around the 6 to 6 1/2" range when all done......

 

[nitrotwin]

Thanks Russ did a search and thought 8" would be plenty long .

 

[Saugling]

I don't have a .12 but maybe this is helpful:

I am between 6.5" and 6.75" with my .18 TZ & Andy's 21ST pipe.