PVC y pipe gt40 muffler delete

Hollywood wrote: Ok, and then when I grab the drop down menu there is text on top of text. Garbage.

Then try this link. It seems to work better.

Link

Hollywood wrote: N3's parts section is STILL down and STILL sucks a big one.

Need to click on the N3 Board Shop link then use the drop down to get to the parts shop. Rather rinky-dink if you ask me. The Parts Shop link displays a page that tells you the Online Parts Shop is coming soon. Been this way for as long as I can remember. I'd probably order parts from them if their web site was easier to use. Unfortunately for N3, nautiqueparts.com is way easier to use and I get a similar 10% discount.

Here is a link to the hoses on N3's site.

Hoses

Did the hose come in 6ft sections? Do you remember how much you needed?

Tadpole wrote: I ordered the 3.5 into 4.0 Centek for my 93 ski nautique. It sounds perfect and seems to give me a little bit more power. I love it and would highly recommend it.

What about the exhaust down tubes? Did you get those from WML? Also what was the total cost so others with invertaflow SN will know for reference.

I ordered the 3.5 into 4.0 Centek for my 93 ski nautique. It sounds perfect and seems to give me a little bit more power. I love it and would highly recommend it.

http://www.marinepartssource.com/newdetails.asp?pnumber=VL1200415&mfg=Centek&mcat1=22&mcat2=0&mcat3=0&category=&mfgcategory=Standard%20Y-Fittings&mfgno=1200415

TRBenj wrote: Or just buy the 3.5x3.5x4 Y pipe instead of the 3x3x4?

I don't really need the Y pipe, but wouldn't mind having it in case the muffler blows again. For his asking price it was a deal. Don't they cost $250-ish for new?

Or just buy the 3.5x3.5x4 Y pipe instead of the 3x3x4?

TRBenj wrote: Starting in '92, all small block PCM's got 3.5" risers, not 3".

Damn

gun-driver wrote: Just find a local place that does custom exhaust and have them tig up a Y fitting out of stainless.

Yeah I already thought of that Paul but I live in a pretty small town up here by Kerr Lake and the muffler shops we have here are deff not gonna tig.. they only have brazing and mig setups which is not detailed enough when looking for water and air tight setups.. And by the time I found and paid someone for there time and materials I could by a Fiberglass y probably

turningpoint84 wrote: Anyone ever thought about "T" off a 1/4" water line from the Cold Water pick up after the RWP and shooting it directly into the PVC pipe a connection? Just extra insurance?

I don't see the problem being as much heat under normal circumstances, the issue is that when the engine experiences an overheat due to lack of water or water problems, you'll overheat the PVC.   If you were using the RWP as extra insurance, the problem doesn't go away, you are still relying on the RWP either through the engine or around it.    I actually think the bigger problem with PVC is that when you heat cycle it, it becomes brittle.   We see condenser water heating systems in our area that have used PVC piping.   Standard water temp is 85°-95°F and we have seen many failures due to the brittleness of the piping.   Yes, the pipes are 20 years old, but I think vibration, more heat, and exhaust gasses would increase to the degradation rate.   I think the OP has a point that getting it all correct as a trial is a fine Idea, but I'm glad to see that a Centek is on order.    

Starting in '92, all small block PCM's got 3.5" risers, not 3".

No. The Y-pipes replace the hull hugger muffler, not the invertaflows. You would need downtubes and then a Y pipe for the older boats.

Here's the one I need it's on sale for $128.http://www.discountmarinesupplies.com/Centek_Exhaust_System_3_Y_Fitting.html?gclid=CIDfp8OOtccCFY09gQod98cHLw

DayTony wrote: I have a y pipe that might work for you, what exactly are you looking for? I have this pipe which you could probably modify. http://www.ebay.com/itm/NOS-marine-muffler-XT-TPD-3504-Centek-Industries-1200442-surge-tube-3-/121693132400?hash=item1c5579d670&vxp=mtr

That's a great deal. If he's not interested, I might be if it will work on our '92