Like Tree0Likes

Carb Vs MPI procharger

Reply

Old 06-12-2002, 08:48 PM
  #1
meander77
Guest
 
Posts: n/a
Default Carb Vs MPI procharger

I built a Prochargered carbed 454 for my boat and now I have the oppurtunity to change over to a complete mercruiser EFI for basically free. Other then then the Dyno ( 615 hp) I have not run the engine in the boat. I was wondering who out there had experience and had any opinions whether the MPI would be better then the carb set up. I am a little worried about the fuel mixture and distribution of the carb set up and want to retain a reliable engine. I really can't afford too many bing explosions.... Also what shops should I talk to regarding this swap? Arizona speed and marine?

Chris
 
Reply With Quote
Old 06-12-2002, 08:59 PM
  #2
Registered
 
Join Date: Feb 2001
Posts: 1,486
Default

There have been many discussions on the board about the challenges of getting the jettting right on a blowthrough carb system. Carbs don't understand air density, so jetting is always a compromise, although Nickerson and Grimes are two tuners who have earned good reputations in this area.

With EFI and a special pressure sensor, it is possible to follow air density changes and theoretically the system should be better, but the programming of the ECM then becomes the issue and there have been many discussions on this board about that too.

People say that EFI is the way to go but the cost stops many of us. If you can get into EFI at no extra cost, more power to you.

If you do this will you have an extra carb box to sell? I am still looking for one to conduct medical research on my improved intercooler configuration.
tomcat is offline  
Reply With Quote
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Full Force
Swap Shop
0
09-13-2008 11:20 PM
slaquer5
General Q & A
5
08-13-2004 10:18 AM
MIKEHTMSR24
General Q & A
4
05-17-2002 06:55 AM
MIKEHTMSR24
General Boating Discussion
1
05-14-2002 09:31 PM
gene
General Q & A
7
03-03-2002 10:53 PM

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


Quick Reply: Carb Vs MPI procharger


OSO Sponsor
OSO Advertiser
OSO Advertiser
OSO Advertiser