Go Back  Offshoreonly.com > Technical > General Q & A
Carb to EFI swap on 525sc?? >

Carb to EFI swap on 525sc??

Notices

Carb to EFI swap on 525sc??

Thread Tools
 
Old 07-03-2018 | 10:43 AM
  #11  
Registered
10 Year Member
 
Joined: Oct 2013
Posts: 2,888
Likes: 148
From: SF Bay Area
Default

I hate carbs, but tuning a Quickfuel with a wideband has been quite tolerable, and wouldn’t want to run without a wideband again. I had plans of switching it to something like a Holley Sniper but I haven’t heard any case examples of it either way.
Baja Rooster is offline  
Reply
Old 07-03-2018 | 10:52 AM
  #12  
BBYSTWY's Avatar
VIP Member
5 Year Member
VIP Member
 
Joined: Jul 2017
Posts: 1,740
Likes: 298
From: Sodus MI
Default

https://www.holley.com/products/fuel.../parts/550-513

1500 bucks...done
BBYSTWY is offline  
Reply
Old 07-03-2018 | 11:09 AM
  #13  
Registered
10 Year Member
 
Joined: Oct 2013
Posts: 2,888
Likes: 148
From: SF Bay Area
Default

Originally Posted by BBYSTWY
Ive heard they work well on SC applications such as this. A little too restrictive for NA for anyone wanting to go that route.
Baja Rooster is offline  
Reply
Old 07-03-2018 | 11:46 AM
  #14  
SB
Registered
20 Year Member
 
Joined: Nov 2004
Posts: 14,103
Likes: 3,692
From: On A Dirt Floor
Default

Originally Posted by Baja Rooster


Ive heard they work well on SC applications such as this. A little too restrictive for NA for anyone wanting to go that route.
You have that mixed up. Draw thru is not like blow thru with various things.
SB is offline  
Reply
Old 07-03-2018 | 11:54 AM
  #15  
Registered
20 Year Member
 
Joined: Jan 2006
Posts: 3,865
Likes: 793
From: St. Pete Beach, FL
Default

Originally Posted by SB
You have that mixed up. Draw thru is not like blow thru with various things.
800cfm main body. It shouldn’t hurt a stock 525sc much or at all but if you turned it up you’d probably be giving up hp over a big dominator or big TB.
hogie roll is offline  
Reply
Old 07-03-2018 | 07:41 PM
  #16  
RollWithIt's Avatar
Thread Starter
Registered
 
Joined: Jun 2003
Posts: 6,130
Likes: 0
From: Pittsburgh
Default

That Holley setup looks nice. But at 1500 times 2... I'm sure the needed adjustments I'm looking at now would be cheaper. But, It is something to consider if or when I would need to replace the carbs...
RollWithIt is offline  
Reply
Old 07-03-2018 | 08:47 PM
  #17  
Griff's Avatar
Charter Member # 55
25 Year Member
Charter Member
Super Moderators
 
Joined: Oct 2000
Posts: 20,247
Likes: 2,495
From: Omaha/LOTO
Default

The 525SC supercharger also have 4500/Dominator carb bolt patterns.
Griff is offline  
Reply
Old 07-06-2018 | 05:51 AM
  #18  
Registered
 
Joined: Nov 2005
Posts: 4,554
Likes: 3
From: Fredericksburg, Va
Default

Originally Posted by RollWithIt
That Holley setup looks nice. But at 1500 times 2... I'm sure the needed adjustments I'm looking at now would be cheaper. But, It is something to consider if or when I would need to replace the carbs...
couple of things...EFI and cheap do not go well together, find a place to a get a 02 to live is another major feat(trust me on this one) and last they make it sound plug and play simple, sometimes it does turn out that way..sometimes far from it...
ezstriper is offline  
Reply
Old 07-06-2018 | 01:10 PM
  #19  
Registered
10 Year Member
 
Joined: Oct 2013
Posts: 2,888
Likes: 148
From: SF Bay Area
Default

Originally Posted by SB
You have that mixed up. Draw thru is not like blow thru with various things.
Thats just the beginning of my mix ups, lol.

FI is advancing pretty quickly these days. Add an O2 sensor with a wideband to sort out the carbs, and then if the sensor survives it’ll possibly be an easier upgrade to FI.
Baja Rooster is offline  
Reply
Old 07-06-2018 | 02:22 PM
  #20  
SB
Registered
20 Year Member
 
Joined: Nov 2004
Posts: 14,103
Likes: 3,692
From: On A Dirt Floor
Default

The more someone depends on the ECU to make the correct decisions when tuning, the more their chances of fking themselves up the azz at some point.

Accountants learn how to do accounting before using the computer to help do so.
SB is offline  
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



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.