Effective port lenght=tuned at?

[keifersracing 10+ year member]

how long is the port

 

[SQBubble 10+ year member]

17.5in

 

[keifersracing 10+ year member]

if the internal is 16.5 how can it be 17.5 it is 21x16.5x15.5 right iternal

 

[SQBubble 10+ year member]

its kinda like this

its 17.5 of effective port length...correct me if im wrong though

 

[SQBubble 10+ year member]

check post#4 for picture the red thing is 17.5

 

[keifersracing 10+ year member]

i come up with 53.12

 

[keifersracing 10+ year member]

i did not see that it had a back to it told port is 17.5

 

[pwnt by pat 10+ year member]

Are any of you guys calculating in wood thickness for the port?

 

[SQBubble 10+ year member]

wut do u mean?