Go Back   TeamTalk > Maintenance Tips, How-tos and Refurbishing Topics > Engine / Drive Train

Reply
 
Thread Tools Display Modes
  #31  
Old 08-19-2011, 08:03 PM
JimN's Avatar
JimN JimN is offline
MC Master Poster
 
Join Date: Jul 2004
Posts: 11,455
Quote:
Originally Posted by JDK View Post
....except for the damn fuel pump (the engine mounted one with the internal by-pass). I've looked and looked and looked for a 'generic replacement'.
Any ideas as to what other applications this pump may have been used in???
The first in-tank pumps were Carter, off the shelf.
Reply With Quote
  #32  
Old 08-19-2011, 08:05 PM
JimN's Avatar
JimN JimN is offline
MC Master Poster
 
Join Date: Jul 2004
Posts: 11,455
Quote:
Originally Posted by Credo View Post
The only question that I have with using a car multiport injection system ona boat would be the 02 sensor. I know that Ford ECU's take their main readings from the MAF and O2 sensor wouldn't a wet exhaust system corrupt the reading from the 02 sensor? And make the engine think its running rich?
The newer boats (since about '05) have catalytic and O2 sensor and the people who used to do a lot of development for MC and Indmar were working on making it work when I was going to tech training, in 1999 and 2000.
Reply With Quote
  #33  
Old 08-19-2011, 08:47 PM
east tx skier's Avatar
east tx skier east tx skier is offline
MC Hero
 
Join Date: Jul 2004
Boat: 1998 Ski Nautique
Location: End of my rope.
Posts: 25,200
In think the cat showed up on the MCX around 06.
__________________
Previous: 1993 Prostar 205

Red 1998 Closed Bow Ski Boat, Ford 351, 310 hp, Acme 4 blade, Perfect Pass SG.

FAQ


Tyler Ski Club


To me, this forum is about love of inboard boats. It is about the sharing of information and, on a good day, some humor. It is not about post count, brand of boat, or any other superfluous labels that lend themselves to a false sense of superiority. Please, respect one another, try to pass on accurate information, and keep your eye on the ball.

Last edited by east tx skier; 08-21-2011 at 05:55 PM.
Reply With Quote
  #34  
Old 08-20-2011, 11:43 PM
j.mccreight@hotmail.com's Avatar
j.mccreight@hotmail.com j.mccreight@hotmail.com is offline
MC Maniac
 
Join Date: May 2010
Boat: 1989 MasterCraft TriStar 190 SE
Location: Houston, TX
Posts: 3,114
No o2 required

http://www.edelbrock.com/automotive_...pf_intro.shtml
__________________
James

1989 MasterCraft TriStar 190 SE
Reply With Quote
  #35  
Old 08-21-2011, 08:13 AM
CantRepeat's Avatar
CantRepeat CantRepeat is online now
 
Join Date: Jul 2008
Boat: 06 X30
Location: Roll Tide!!
Posts: 8,097
Quote:
Originally Posted by j.mccreight@hotmail.com View Post
Then why does it come with one?

A narrow band O2 sensor is included and is also wide-band 02 compatible (wide band O2 not included).
__________________
Tim
Gone, surfing.
Reply With Quote
  #36  
Old 08-21-2011, 09:27 AM
CruisinGA's Avatar
CruisinGA CruisinGA is offline
MC Devotee
 
Join Date: Jun 2009
Boat: '01 X9 330HP
Location: Georgia
Posts: 1,393
As far as the fuel pump problem...

A relatively common practice in my "other" motorsport, rock crawling, is to use the mechanical engine mounted fuel pump to pull fuel from the tank and then have it fill a vertically oriented ~.25 gallon tank which the high pressure electric fuel injection pump draws from the bottom of.

This accomplishes several things- avoids having to run an in-tank fuel pump, uses the mechanical diaphragm pump which is better at "pulling" fuel than electric ones to bring the fuel from the tank, eases load on your expensive high pressure electric pump, and gives you a .25 gallon fuel supply that is available at almost any angle. The angle part is important in rock crawling, but not so much in boats.
__________________
Bailey
'02 X-9
Lake Blue Ridge
Reply With Quote
  #37  
Old 08-21-2011, 09:44 AM
j.mccreight@hotmail.com's Avatar
j.mccreight@hotmail.com j.mccreight@hotmail.com is offline
MC Maniac
 
Join Date: May 2010
Boat: 1989 MasterCraft TriStar 190 SE
Location: Houston, TX
Posts: 3,114
^ sorry didnt read the discription just looked at the pretty ford picture
Attached Images
 
__________________
James

1989 MasterCraft TriStar 190 SE
Reply With Quote
  #38  
Old 12-27-2011, 02:15 AM
Credo Credo is offline
TT Newbie
 
Join Date: Aug 2010
Boat: 1994 Prostar 190 Stars and Stripes
Location: Southwest
Posts: 12
Ok so I have been doing alot of research on the "megasquirt II" system. Well I think it could be done with a Ford 2 bbl carb intake a $40 adapter plate from trans-dapt. And any GM TBI with a built in regulator, TPS, and injector set up. To take control of the ignition advance use a TFI Distributor and now they make marine wideband o2 sensors I think a junkyard TBI is like $100 and the TFI is $60 a boost-a-pump is like $100, Megasquirt II is $250 to $450 and you just need to figure out the tank situation. and you can swap that carb out for a GM TBI. I think you could do it all for about $1k Now the question is the cost benefit analysis. The million dollar question is it worth it?

Last edited by Credo; 12-27-2011 at 02:20 AM.
Reply With Quote
  #39  
Old 12-27-2011, 07:27 AM
CantRepeat's Avatar
CantRepeat CantRepeat is online now
 
Join Date: Jul 2008
Boat: 06 X30
Location: Roll Tide!!
Posts: 8,097
The wideband o2 you linked to is not a marine o2. I'm running that setup in my Suburban. I do not think there is an o2 sensor made that will work when wet. All of the MC motors use a dry exhaust system that doesn't introduce water until after the o2 sensor.

I'm pretty convinced the only way to convert an older 351 to efi is going to be a well tuned open loop system. Either that or making some sort of new exhaust system.
__________________
Tim
Gone, surfing.
Reply With Quote
  #40  
Old 12-27-2011, 09:24 AM
1redTA's Avatar
1redTA 1redTA is offline
MC Devotee
 
Join Date: Aug 2009
Boat: 1981 MasterCraft Limited 351W slot
Location: Pace, FL
Posts: 1,026
holy thread resurrection! In my opinion! a TBI is not worth the hassle of retrofitting on to a boat that has a GOOD 4160 carb. the tbi is really nothing more than a 2V carb that keeps a wet manifold on the other hand, a multi port fuel injection even a TPI with its long runners and torque would be a worthwhile attempt.


I cant wait to get a 205 with a LT-1
__________________
1981 MasterCraft
19' Skier 351W PowerSlot Deluxe
Long gone is the Trans AM waiting for another
Reply With Quote
Reply

Thread Tools
Display Modes

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


All times are GMT -4. The time now is 02:53 AM.