Your On-Line Port'o'Call
Page 1 of 2 1 2 >
Topic Options
Rate This Topic
#391064 - 03/23/08 10:05 PM "CAT" Exhaust Header
seabuddy Offline
Admiral

Registered: 12/15/02
Posts: 28862



Top
#391070 - 03/23/08 11:22 PM Re: "CAT" Exhaust Header [Re: seabuddy]
Frantically Relaxing Offline
Never get out of the boat
Admiral

Registered: 02/07/03
Posts: 6542
I see a water jacket in the cat, but what keeps the header tubes cool? And I'd love to see how/where the missing tube(s) goes...

It looks like with not a lot of modification, the cat-half could be mounted to a standard riser...?
_________________________
Yes, YOU are unique.
Just like everyone else.



. . . . . . . 1988 Skipperliner Custom 53x14 . . . . . . . . . .2007 Bayliner 175BR . . . .

Top
#391071 - 03/23/08 11:33 PM Re: "CAT" Exhaust Header [Re: Frantically Relaxing]
D-Rod Offline
Admiral

Registered: 06/25/05
Posts: 7542
 Originally Posted By: Frantically Relaxing
I see a water jacket in the cat, but what keeps the header tubes cool? And I'd love to see how/where the missing tube(s) goes...

It looks like with not a lot of modification, the cat-half could be mounted to a standard riser...?


I'd worry about heat without a new ECM running a closed loop system....

Top
#391080 - 03/24/08 12:39 AM Re: "CAT" Exhaust Header [Re: D-Rod]
Gdburch Offline
Vice Admiral

Registered: 03/06/04
Posts: 223
Loc: Spokane, Washington
Looks fairly restrictive to me for an exhaust header. Especially the area just ahead of the cat core. It doesn't flow into the core the way it flows out of the core. Seems like they should have design the inlet side with smooth flowing transition instead of 90 deg joints and a small gap between the end plate and core.
_________________________
1989 Stingray 19' open bow
14' aluminum w/ 25hp merc.
96 Dodge 2500 4x4 ext cab V10
2003 Subaru Outback

Top
#391090 - 03/24/08 03:49 AM Re: "CAT" Exhaust Header [Re: Gdburch]
seabuddy Offline
Admiral

Registered: 12/15/02
Posts: 28862
This cut-away was shown on a sorta stock looking GM block 6.0L.

Top
#391119 - 03/24/08 06:13 AM Re: "CAT" Exhaust Header [Re: seabuddy]
D-Rod Offline
Admiral

Registered: 06/25/05
Posts: 7542
Well...the two O2 sensors should be easy to change if needed.

Interesting design.

Top
#391524 - 03/24/08 11:44 PM Re: "CAT" Exhaust Header [Re: D-Rod]
seabuddy Offline
Admiral

Registered: 12/15/02
Posts: 28862
It was not in their catalog the last time I checked, either.

Top
#392178 - 03/26/08 07:32 PM Re: "CAT" Exhaust Header [Re: Frantically Relaxing]
Lowrider78 Offline
Admiral

Registered: 01/31/04
Posts: 796
Loc: Newton Ks
 Originally Posted By: Frantically Relaxing
I see a water jacket in the cat, but what keeps the header tubes cool? And I'd love to see how/where the missing tube(s) goes...

I can't swear to it by the pic, but in my case, the entire header tube is water jacketed, from the mounting flange on out. These would be the same.
_________________________
That red streak that howled by? That was me. Did ya like the roostertail? Big Blocks and Jets Forever
78 Taylor SS
454 Chevy 500+HP
NOS Sniper 100-150HP system
Berkley 12J / Dominator Bowl / Agressor "B" Impeller / HTP Snoot / Place nozzle diverter

Top
#392280 - 03/27/08 07:21 AM Re: "CAT" Exhaust Header [Re: Lowrider78]
seabuddy Offline
Admiral

Registered: 12/15/02
Posts: 28862
Good question.

Top
#396816 - 04/13/08 11:10 AM Re: "CAT" Exhaust Header [Re: seabuddy]
seabuddy Offline
Admiral

Registered: 12/15/02
Posts: 28862
Any answer?

Top
#396821 - 04/13/08 11:20 AM Re: "CAT" Exhaust Header [Re: D-Rod]
Lou C Offline
Admiral

Registered: 01/20/03
Posts: 978
Loc: Long Island NY
Originally Posted By: D-Rod
Well...the two O2 sensors should be easy to change if needed.

Interesting design.


Let's hope they use REALLY good rust resistant metals, I am thinking of us in salt water....OMC/Bomb triple guard grease goes on most of my bolts, but on those, only thing you can use is antisieze which can cause trouble in salt air...
_________________________
88 Four Winns 200 Horizon 4.3 OMC
98 Jeep Grand Cherokee

Top
#396830 - 04/13/08 11:58 AM Re: "CAT" Exhaust Header [Re: seabuddy]
Lowrider78 Offline
Admiral

Registered: 01/31/04
Posts: 796
Loc: Newton Ks
What brand CAT header is that?
_________________________
That red streak that howled by? That was me. Did ya like the roostertail? Big Blocks and Jets Forever
78 Taylor SS
454 Chevy 500+HP
NOS Sniper 100-150HP system
Berkley 12J / Dominator Bowl / Agressor "B" Impeller / HTP Snoot / Place nozzle diverter

Top
#398917 - 04/21/08 10:27 AM Re: "CAT" Exhaust Header [Re: Lowrider78]
seabuddy Offline
Admiral

Registered: 12/15/02
Posts: 28862
I took as a prototype from Custom Marine.

Top
#398935 - 04/21/08 11:03 AM Re: "CAT" Exhaust Header [Re: Lou C]
D-Rod Offline
Admiral

Registered: 06/25/05
Posts: 7542
Originally Posted By: Lou C
Originally Posted By: D-Rod
Well...the two O2 sensors should be easy to change if needed.

Interesting design.


Let's hope they use REALLY good rust resistant metals, I am thinking of us in salt water....OMC/Bomb triple guard grease goes on most of my bolts, but on those, only thing you can use is antisieze which can cause trouble in salt air...


The O2's should not get wet?

Top
#398944 - 04/21/08 11:25 AM Re: "CAT" Exhaust Header [Re: D-Rod]
etyppo Offline
Vice Admiral

Registered: 06/25/07
Posts: 480
Loc: CA
Originally Posted By: D-Rod
Originally Posted By: Lou C
Originally Posted By: D-Rod
Well...the two O2 sensors should be easy to change if needed.

Interesting design.


Let's hope they use REALLY good rust resistant metals, I am thinking of us in salt water....OMC/Bomb triple guard grease goes on most of my bolts, but on those, only thing you can use is antisieze which can cause trouble in salt air...


The O2's should not get wet?


Anti freeze kills them. I'm not sure about water.
_________________________
2006 Cobalt 263 Mercruiser 8.1
1999 Larson 206 SEi Volvo 5.0Gi (for sale)

Top
Page 1 of 2 1 2 >


Moderator:  Admin, Finger Lakes Boater, Opus 
Google Search
 
Who's Online
6 registered (3boyzz, bekosh, Bowline, LostBoyinVA, vyborny1, 1 invisible), 8 Guests and 5 Spiders online.
Key: Admin, Global Mod, Mod
Newest Members
JUSTICEFURALL, brianford30, Doubles, bostonchris, PrecisionMarine
4103 Registered Users
January
Su M Tu W Th F Sa
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
New Topics
apples new software
by rollofire
Today at 10:33 AM
ENOUGH!!
by Andyk2
Yesterday at 09:12 PM
After many years, finally a boat name!
by casualboater
Yesterday at 09:01 PM
Tenn - Tom waterway
by Andyk2
Yesterday at 06:58 PM
Bass boat ?
by Rocnat4
Yesterday at 01:30 PM
No sleep in our house tonight
by GoFirstClass
01/06/09 09:43 PM
Hello All. Questions) about First Boat
by Doubles
01/06/09 07:58 PM
Christmas fishin' trip
by Semper Fi 75
01/06/09 05:41 PM
Electric wheelchair
by Philr
01/06/09 05:41 PM
Cape Cod Boating
by bostonchris
01/06/09 02:32 PM
Forum Stats
4104 Members
26 Forums
29913 Topics
448683 Posts

Max Online: 162 @ 04/30/07 11:57 AM