Freestyle B2 pump tunnel into a SJ? is it worth it...

[harris414]

I have a 2001 SH hull im using to build a plug and pull a mold from...
Since the B2 uses a 155mm pump, I was wondering if the B2 pump tunnel would be better for use with the bigger mag pumps?

If so I will cut a B2 pump tunnel out and place into my SJ plug...

Any help or knowledge on the B2 pump tunnel would be great as I dont have one to look at and
want to see if I should try and find one to buy.

Thanks

 

[snowxr]

What are you trying to accomplish by adding a 155mm or bigger pump? Lots of riders are flipping with much smaller pumps.

 

[harris414]

Not the pump, just the pump tunnel
I was thinking since the B2 uses a 155 pump that the tunnel may be wider/larger....
if so
Then wouldnt that larger pump tunnel work better with the larger mag pumps like 148mm and so on

Ive seen people widen the stock tunnel but thought about just using a B2 tunnel

 

[Nuklear6]

Not the pump, just the pump tunnel
I was thinking since the B2 uses a 155 pump that the tunnel may be wider/larger....
if so
Then wouldnt that larger pump tunnel work better with the larger mag pumps like 148mm and so on

Ive seen people widen the stock tunnel but thought about just using a B2 tunnel

Milan why not the pump?????? Just cuz guys are flipping on smaller doesnt mean bigger isnt better.... Mag pumps are great but cost 1200+. Stock 155 yami stuff can be found on forums and e bay for a few hundred. Its your brain child do what you think is best. But not sure making a bigger tunnel is actually needed if your keeping the stock sj pump shoe. As the stock pump tunnel def flows enough. I believe when people widen the tunnel or the opening its more for making of an easier transition to the shoe.

 

[sjetrider]

If the pump tunnel is wider, then so too is the center keel of the boat correct? This would effect the ride. Better or worse?