====best for freestyle and racing ===

[Matt_E]

If there was one perfect combination wouldn't we all have the same boat?!

Nope....the power of the Internet bandwagon is stronger than the perfect combination. :biggrin:

 

[iptamenos]

Depends on who ports it.

i have seen riva porting and tlr porting was the same only the exhaust hole was different

 

[Matt_E]

How do you know it was the same?
Did you measure everything with a degree wheel to confirm the porting (other than the exhaust) was 100% the same?
How did you measure the port angles?
Was the head setup the same? Same domes, same squish?
How about the ignition?

Besides, you say the exhaust was different. That tells me the porting wasn't the same.

There is more to engine setup than porting. Carbs, intake, pipe, waterbox, cooling setup, compression, pump, and ignition all play together to form a package.

 

[Polish jet pilot]

Amen

 

[iptamenos]

i was anwser to your post

"who make the porting"

i didn't say anything about pipe ,carb,head

in the machine shop who makes the porting and the boring
he was the pro-x wiseco and L.A sleeves distributor
he measure everything

 

[Matt_E]

Identically ported cylinders can perform drastically different - there is more to performance than just cylinder porting.