Go Back  Offshoreonly.com > Technical > Restorations & Upgrades
Carbs vs EFI Comparison Question? >

Carbs vs EFI Comparison Question?

Like Tree1Likes
  • 1 Post By snapmorgan

Carbs vs EFI Comparison Question?

Reply

Old 09-15-2018, 07:12 AM
  #1
Registered
Thread Starter
 
Join Date: Mar 2016
Location: Mt Washington Ky
My Boat: 06' 35 Baja Outlaw
Posts: 46
Default Carbs vs EFI Comparison Question?

Asking for more help on my project. I would like to know some input on Carbs vs EFI. It seems that I can complete my project a bit cheaper with Carbs. Being told that the Carbs today are much better than those of the past. I will be boating in the Mid-East states, not sure if that helps. I read threads that talk about both and its hard to make a decision. Looking to get around 750 - 900Hp on 35' Outlaw, twin engine upgrade.
Hogheadsena is offline  
Reply With Quote
Old 09-15-2018, 10:04 AM
  #2
Platinum Member
Platinum Member
 
SecondWind's Avatar
 
Join Date: Dec 2013
Location: Bourbonnais, IL
My Boat: 2004 American Offshore NSX
Posts: 513
Default


Ive got carbs on a 800HP mill, they work great. Engine fires right up and will idle all day.
SecondWind is offline  
Reply With Quote
Old 09-16-2018, 03:11 PM
  #3
Registered
 
Join Date: Sep 2018
Location: Lake Murray
My Boat: 96 Formula 336
Posts: 25
Default

Im a carb guy buy the newer bolt on EFIs are easy to use and easy to dial in. Seem to run more efficient.
Disturbing Behavior is offline  
Reply With Quote
Old 09-16-2018, 11:34 PM
  #4
Platinum Member
Platinum Member
iTrader: (2)
 
snapmorgan's Avatar
 
Join Date: Aug 2010
Location: Evansville, IN
My Boat: 35 Nordic Flame/with 700's, Advantage 28' Sport Cat 850hp single
Posts: 1,434
Default

To make that power you are going to have to use some forced induction of some sort. If you are starting from scratch and don't have any parts laying around that you plan to use then the answer would be a simple one for me, Whipple superchargers with EFI.
Jim Diesel likes this.
snapmorgan is offline  
Reply With Quote
Old 09-17-2018, 05:37 PM
  #5
Registered
 
Join Date: May 2006
Location: Covington, LA
My Boat: 33' Powerplay / Previous - Formula 303 / 28 Eliminator Daytona / 28 Cigarette SS / 26 American Offshore / 24' P&D / Glastron CVX16
Posts: 278
Default

I'm interested in opinions on this subject as well. I'm the 700HP range (with marine headers) I don't think you'll get too much more than that N/A without a lot of cubic inches or RPM or both. For TBI applications the Holley stealth 4500 seems like a nice (simple) option however they tell me not to use it under 800HP. Their next offering maxes out at 600HP, they admit they don't have an offering in the 600-800 range but are working on it. New carburetors seem to run in the $1200 range, the Holley Stealth TBI is $1600 plus the fuel system. I'm inclined to lean towards the carburetor for simplicity if it will in fact give me the idle I'm looking for, I have a healthy camshaft and decent size props and am having issues idling in gear.
ezrizer is offline  
Reply With Quote

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


OSO Sponsor
OSO Advertiser
OSO Advertiser
OSO Advertiser