power factor coupler size

[superhondaz50]

Ok , this is a ridiculous question, but I want to order some extra silicone couplers on ebay for my PFP but I'm not at home and can't measure them. I think the manifold one is 3.5", stinger is 2", and water box outlet is 2.5". Can anyone verify this? Thanks

 

[Byeai]

4 inch

 

[superhondaz50]

Oh dang, its that big?

 

[superhondaz50]

Is that OD or ID?

 

[Byeai]

Id it's the same as a bpipe coupler

 

[Aquaholic]

It's amazing how much misinformation is available on this site. That's a 3.5" (manifold to chamber) ID coupler.

 

[Byeai]

Yea that right my bad just measured my extra in the car sorry for the misinformation pumpkin

 

[superhondaz50]

Thanks! Can you confirm the other two coupler sizes?

It's amazing how much misinformation is available on this site. That's a 3.5" (manifold to chamber) ID coupler.

 

[Aquaholic]

Thanks! Can you confirm the other two coupler sizes?

You had it all correct in your original post.

 

[superhondaz50]

Sweet, thanks.

 

[superhondaz50]

How often do you guys blow couplers?

 

[Philip Clemmons]

I get over a season, but always have one with me. They surprise you.


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[Lumpy]

How exactly do these couplers blow out?

 

[SpaceCowboy]

Just order a beefed up one from Jetmaniac


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[yamanube]

I've started using this for my dry pipe, it is considerably stronger than any silicon coupler I have used.

http://www.keperf.com/p-46-3-12-marine-grade-soft-wall-exhaust-hose.aspx

 

[RyanO]

We use an RRP pipe style coupler that has a bulge in the middle, it allows more flex instead of tearing.. we used to get 2-3 hours out of a standard blue/red silicone.. been running the RRP style for over 10 now.

http://rickroy.com/rrp-parts/exhaust/3-1-2-hump-exhaust-coupler.html

 

[Freakrider]

I've started using this for my dry pipe, it is considerably stronger than any silicon coupler I have used.

http://www.keperf.com/p-46-3-12-marine-grade-soft-wall-exhaust-hose.aspx

I just bought this type from Amazon hose for my PFP, how has it worked out since you posted this ? This hose is much more rugged and holds chamber firm. It's made from Hi-temp resistant rubber and not Silicone based.

 

[yamanube]

I just bought this type from Amazon hose for my PFP, how has it worked out since you posted this ? This hose is much more rugged and holds chamber firm. It's made from Hi-temp resistant rubber and not Silicone based.

Going strong all season, even had a clamp that I didn't fully tighten and my chamber started to push away from the manifold. I caught it right before the coupler worked off completely but even with that gap between manifold and chamber it didn't split or leak.
Silicone is honestly not anywhere near the most desirable material for this application.