Super Jet what screws to turn?

[fast superjet chase]

What screws do i need to turn and how much on my factory b pipe for the most low end out of my ski? Thanks

 

[fast superjet chase]

No one knows?

 

[j'ray]

I'm pretty sure factory pipe has the tuning specs listed on their site
http://factorypipe.com/t_pipetuning.php

but most run the middle screw closed, bottom screw closed - 1/4 turn, top screw is what you play with. like 3/4 turn or something to start.

 

[fast superjet chase]

i have them all closed except the top is 3/4 out. ive been told to open it more and run more water throw it to get more bottom end. Im not sure if thats right i thought that it is supposed to be dryer for more bottom end. Was i told wrong? Just looking for some one with more knowledge on it.

 

[eeerieski]

more water = slower pressure waves, the slower pressure waves correlate with the lower engine rpms. longer pipe generally means more power at lower rpms too, hence the mod b is shorter. it's all about the time it takes the pressure wave to get back to the exhaust port

 

[fast superjet chase]

thanks