Freestyle Power factor pipe, old/new model - spot weld? problems with non spot welded pipes?

Christian_83

Christian_83

Xscream
Location
Denmark
Hi guys, stumbled over a thread were a guys asked if the PFP was new model with spot weld. Talked to Tim on here, who send me a picture of his PFP chamber with the spot weld, to keep inner and out liner from breaking.
I think my chamber is the one without, but cannot see as i still got 1 week at work.
But has this been a probem, pipe breaking (W/O spot weld) and or has anyone got this mod done, to a pipe?
 
Proformance1

Proformance1

Liquid Insanity
Location
New York Crew
Marks out for a bit, he will respond. I asked same before, if you support it properly it wont be an issue. If you think it is just pressure test the outer jacket with your pop off gauge :)
 
raytherace

raytherace

Canadian Brapp Dealer
Location
St-Ray Beach, QC
I asked the question to Mark today and his answer was what I expected: " The weld spots are to hold the inner chamber to the outer chamber for increased reliability. Could call it support for the inner chamber. "
 
Christian_83

Christian_83

Xscream
Location
Denmark
OKai, i havent got any reply from Mark since i wrote him an email. 8th september. 2013.
Did he say anything about the pipe who havent got this new mod?
Is it nessescary to do the mod and possible?
 
Byeai

Byeai

"Cheetos-Man"
Location
Melbourne FL
Was at marks yesterday picking up a pfp and he is going overseas I think (he wont be back till dec 3) today

Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
 
sjetrider

sjetrider

615 Freeriders are addicted to T1 madness.
Location
in the 615 (Nashville)
Another test is to completely tighten your flow control valve (FCV) ride 5 mins and see if waterbox sizzles, if it does your pipe aint broke if it dont you may have an isse.
There were many issues in the begining with these pipes. They seem to be resolved now though and the issue was addressed over a year ago I beleive so if you have an issue with an older pipe you may not have warranty to discuss. The fix is not easy and few will attampt it especially on used pipes as getting good welds is a chore with the cleaning and all.

The water boxes themselves are not too reliable in my experience either, one in water backfire and I been patch welding seems and parent metal every since.
 
xXx Octane xXx

xXx Octane xXx

X
Location
Minnesota
I seem to remember being told by a reputable source that back when KHI was pouring big money into their factory race skis, they were using dry pipes that had the outer water jacket stampings welded to the expansion chambers along the entire weld seam, thus created two separate water jackets, one one each side of the weld seam. I know the water routing to the pipe becomes more involved, but with expansion chamber constrained to the water jacket(s) along the entire weld seam, rather than just at the coupler and stinger ends of the pipe (like most dry pipes are), the exhaust system becomes a lot stronger.
Maybe I'm wrong and by no means am I a watercraft exhaust system manufacturer, but this seems like a lot better "fix" than adding a spot weld (Factory Pipe SX-R Dry Pipe, Power Factor, etc.) or dimpling the water jacket so it makes contact with the expansion chamber (Factory Pipe Type-4, Riva Freeride, etc.). Thoughts, opinions?

Eric.
 
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raytherace

raytherace

Canadian Brapp Dealer
Location
St-Ray Beach, QC
Christian_83 said:
OKai, i havent got any reply from Mark since i wrote him an email. 8th september. 2013.
Did he say anything about the pipe who havent got this new mod?
Is it nessescary to do the mod and possible?
Click to expand...

I sent him an email and he answered me the next day. I did not ask about the pipe who has not this weld spot, I guess the one w/o it are maybe easier to crack if the pipe is not well supported.

I think the key here is to perfectly align your pipe and support it as it is recommended in the install manuel.
 
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