Like Tree0Likes

Hooker headers on a boat?

Reply
Old 05-20-2012, 02:49 PM
  #1
Registered
Thread Starter
Trade Score: (2)
 
Join Date: Mar 2012
Location: Norman Oklahoma
My Boats: 1991 Scarab Viper 31
Posts: 169
Default Hooker headers on a boat?

Could you put a set of race car headers on a boat if you added water jackets?
benthompson292 is offline  
Reply With Quote
Old 05-20-2012, 03:03 PM
  #2
Registered
 
Join Date: Dec 2004
Location: Turku, Finland
My Boats: Something small blown and light
Posts: 1,810
Default

Hooker back in the day did just that...
MikeyFIN is offline  
Reply With Quote
Old 05-20-2012, 07:12 PM
  #3
Registered
 
Join Date: Feb 2012
Location: westville, NJ
My Boats: 1967 34 Hatteras summer house. 2000 Crownline 248ccr her boat. 79 Pantera 24 Sport.
Posts: 3,688
Default

since car headers are all mild steel, if you put them in water jackets, especially in salt, they would rot through in no time. if hooker made stainless headers, it might be worth considering. except for the shape. car headers are designed to fit DOWN between the frame rails and to clear the steering. boat exhaust have to go up and hook back over the engine with a specific angle and distance down to go through the transom. you wanna take off engine hatch and put them on upside-down hanging over the transom? i suggested this as a somewhat insulting joke to a guy and a buncha people tore me a new one cuz they thought i was serious. the exhaust is the biggest area where marine and automotive engine design are different from each other.
dereknkathy is offline  
Reply With Quote
Old 05-20-2012, 07:13 PM
  #4
Platinum Member
Platinum Member
Trade Score: (1)
 
articfriends's Avatar
 
Join Date: Jun 2004
Location: Frankenmuth
My Boats: EX 99 MPH 272 Baja owner, 1999 Scarab 33 AVS NOW
Posts: 6,062
Default

Quote:
Originally Posted by MikeyFIN View Post
Hooker back in the day did just that...
I don't think the Hooker boat headers were water jacket so much as water injected (ran dry at idle and got water injected into exhaust stream while under speed), Smitty
articfriends is offline  
Reply With Quote
Old 05-20-2012, 07:40 PM
  #5
Platinum Member
Platinum Member
Trade Score: (3)
 
mike tkach's Avatar
 
Join Date: Oct 2007
Location: yorkville,il
My Boats: 31 american offshore,38 fountain fever
Posts: 7,977
Default

Quote:
Originally Posted by articfriends View Post
I don't think the Hooker boat headers were water jacket so much as water injected (ran dry at idle and got water injected into exhaust stream while under speed), Smitty
i did not know hooker made a water injected header,but 2 companys that still make them are bassett and rewarder.rewarder also makes a water jacket header out of mild steel,and coat them inside and outside with a ceramic coating,they do not recomend useing them in salt water.
mike tkach is online now  
Reply With Quote
Old 05-20-2012, 07:53 PM
  #6
Registered
Trade Score: (2)
 
Join Date: Aug 2005
Location: Between A Womans Leggs in IL
My Boats: 77 donzi x18 92 formula 336 sr1
Posts: 6,320
Default Fixx

Quote:
Originally Posted by mike tkach View Post
i did not know hooker made a water injected header,but 2 companys that still make them are bassett and rewarder.rewarder also makes a water jacket header out of mild steel,and coat them inside and outside with a ceramic coating,they do not recomend useing them in salt water.
+1
ya beat me to it!

bassett is also making headers for I/o's also..

http://www.bassettracing.com/photos1.htm
FIXX is offline  
Reply With Quote
Old 05-20-2012, 07:54 PM
  #7
Registered
 
Join Date: Feb 2012
Location: westville, NJ
My Boats: 1967 34 Hatteras summer house. 2000 Crownline 248ccr her boat. 79 Pantera 24 Sport.
Posts: 3,688
Default

BUT, none of them are pass. car headers. they are all made to fit and work in a marine environment.
dereknkathy is offline  
Reply With Quote
Old 05-20-2012, 07:55 PM
  #8
Platinum Member
Platinum Member
Trade Score: (3)
 
MILD THUNDER's Avatar
 
Join Date: Jul 2004
Location: chicago
My Boats: 38 Fountain
Posts: 10,791
Default

Quote:
Originally Posted by benthompson292 View Post
Could you put a set of race car headers on a boat if you added water jackets?
To answer your question, in short, NO.

You will be money and time ahead to just buy a pair of jacketed marine headers, made of stainless.

I just happen to have a pair for sale, very reasonably priced.
MILD THUNDER is offline  
Reply With Quote
Old 05-20-2012, 10:09 PM
  #9
Registered
Thread Starter
Trade Score: (2)
 
Join Date: Mar 2012
Location: Norman Oklahoma
My Boats: 1991 Scarab Viper 31
Posts: 169
Default

What is the difference between water jackets and water injection?
benthompson292 is offline  
Reply With Quote
Old 05-20-2012, 10:18 PM
  #10
Platinum Member
Platinum Member
Trade Score: (3)
 
MILD THUNDER's Avatar
 
Join Date: Jul 2004
Location: chicago
My Boats: 38 Fountain
Posts: 10,791
Default

Water jacketed headers have a inside tube, that the exhaust gas goes thru. Then they add a outer tube. Between the inner and outer tubes, water flows. This keeps them cool.

Water injected, I believe have just one tube, and water gets injected to them at a certain rpm, because at idle, it would flood the engine with water. I think. I don't really know much about them. Mainly used on jet boats and what not with open/exposed engines.

In a typical I/O inboard, water jacketed is what you need. The headers stay cool, won't cause fires or melting things in a enclosed engine compartment.
MILD THUNDER is offline  
Reply With Quote
Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 09:38 PM.


Copyright 2011 OffShoreOnly. All rights reserved.