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tooslow 10-14-2024 10:14 AM

496 captains call installation questions
 
I'm installing captains call on a 454 with 496 exhaust manifolds . I have run the 496 manifolds for a couple seasons now . My main question is connecting to the y -pipe / width of the y-pipe . I've searched a lot and most of the info I see is that all v8 y pipes are the same . I read on a sea Ray forum that the 496 y pipe was 3" wider but no part numbers . I bought a y pipe from a 2004 Baja boss 302 with 496's. What confuses me is the y-pipe is about 3" narrower than the outlets of my exhaust risers /elbows. I know I can probably make up that 1.5" difference on each side but I'm surprised I should have to . Searching around OSO I see that is common to use 3.5" soft wall exhaust hose to connect the y pipe oval to the captains call oval . Or I see IMCO makes an oval connector longer than stock .I didn't actually pull the engine or install the Y pipe yet I'm trying to get everything prepped for doing it before winter . Does anybody have any insite on this y pipe width thing ? Or pictures of 496 captains call setups . Thank you

87MirageIntruder 10-14-2024 05:26 PM

https://cimg3.ibsrv.net/gimg/www.off...19728704c5.jpg

tooslow 10-14-2024 06:01 PM


Originally Posted by 87MirageIntruder (Post 4911520)

Thank you for the picture . It makes more sense now. It looks like your Y pipe isn't quite as wide as your exhaust elbow to elbow width either . That makes me feel better that's just the way it is . Very clean engine and bilge !

87MirageIntruder 10-15-2024 10:56 AM

That was taken earlier this year. It was a new build I did for a friend. Whipple 496 with forged internals in a 2001 Donzi 26ZX. Unfortunately it's back at my shop as the drive coupler blew during break in. So out with the engine. Again...

madflavors26 10-15-2024 11:27 AM

Where did that oil filter come from???

Markus 10-15-2024 11:45 AM

They used to be made by Wix.

87MirageIntruder 10-16-2024 10:20 AM

That Kmart filter is a vintage unit I found on Ebay. As you can see in the pic I set it up with a remote mounted oil filter on the transom, so the factory oil filter mount is no longer used. I thought why not put a conversation piece on the engine. We get lots of laughs with that kmart filter. People see a whipple supercharged engine and a kmart filter and shake their heads.

Brad Christy 10-16-2024 12:03 PM


Originally Posted by 87MirageIntruder (Post 4911656)
That Kmart filter is a vintage unit I found on Ebay. As you can see in the pic I set it up with a remote mounted oil filter on the transom, so the factory oil filter mount is no longer used. I thought why not put a conversation piece on the engine. We get lots of laughs with that kmart filter. People see a whipple supercharged engine and a kmart filter and shake their heads.

87Mirage,

Too funny. Reminds me...

Years ago, I broke a rod in one of my 3.5cc two stroke model boat engines, and it punched right through the side of the crank case. Instead of scrapping it, I milled the hole to cleanup and made up a blocking plate to match that was held in place with two screws and aluminum-filled epoxy. The engine ran great for several season after that. But, just for laughs, I also drilled and tapped a blind hole in it, put a brass nipple in it, and ran a length of fuel tubing back through a bulkhead. It wasn't connected to anything and didn't do squat. Any time anybody noticed it and asked, I'd go "SHHHHHH!", and look around, acting like we were in the middle of a drug deal. It's amazing what some people will believe if they think it's some kind of speed secret. :rolleyes:

Thanks. Brad.


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