Fuel system for On3 kit and e85? - Ford Mustang Forums : Corral.net Mustang Forum
 1Likes
  • 1 Post By KEVIN$
 
LinkBack Thread Tools Display Modes
post #1 of 8 Old 05-11-2017, 10:46 AM Thread Starter
Registered User
 
Trader Feedback: (0)
Join Date: Dec 2015
Posts: 6
Fuel system for On3 kit and e85?

Okay guys I'm planning on buying an on3 kit to throw on my 91 gt. I need some info on what you guys are running mainly fuel pump wise.

Current setup:
Built 347
10.5:1 CR
Performer RPM heads with valve job
Vic Jr. Intake modded for fuel injection
EFI Spyder elbow
Etc.

Current fuel system:
Aftermarket pump hanger with 3/8" feed and return tubes and proper AN fittings at the hookups
-8an feed line
-6an return lines
Billet rails
36lb injectors
Aeromotive regulator
Aeromotive Stealth 340 IN TANK pump.

I'm almost positive I'll have to go e85 if I put any boost to this motor due to my compression ratio being a little on the high side. My main concern is fueling at that point. I know I'll have to probably go with 80# injectors possibly even bigger. But what I'm most curious about is if my current Stealth 340 pump would be enough to support 500-550 RWHP on e85. I really would like to stay with an in-tank pump so I don't have to redo everything. Would a Boost A Pump give it the extra grunt it may need to fuel this thing? Or any other pump options for in tank? Must be a single pump though as my tank is only set up for a single.

Please chime in with your opinions guys.


Sent from my iPhone using Tapatalk

Suzukikevin95 is offline  
Sponsored Links
Advertisement
 
post #2 of 8 Old 05-11-2017, 11:39 AM
Registered User
 
Trader Feedback: (4)
Join Date: Dec 2010
Location: Dallas/Houston
Posts: 1,755
Is this a stock block? If so, all you need is siemens deka 60lb injectors to make block splitting power on e85 (over 600 crank) using your existing pump (if its rated for e85). If you have an aftermarket block, you can make about 850 on Siemens deka 80's with a walbro 450 in-tank. If you want more, you're looking at big external pumps and big injectors (120's or 160') in order to make anywhere from 1000-1500+.

To be on the safe side, or if your current pump isn't rated for e85, I'd go with a set of 80s and the walbro 450 pump now. That way you have plenty of fuel and room to grow if you want an aftermarket block. The pump is only like 100-120 bucks and the 80's can be had for the same price as the 60's.

I use the 450 and 80's in my car on e85 and it's been fine.

5.0thunder is offline  
post #3 of 8 Old 05-11-2017, 11:47 AM Thread Starter
Registered User
 
Trader Feedback: (0)
Join Date: Dec 2015
Posts: 6
Quote:
Originally Posted by 5.0thunder View Post
Is this a stock block? If so, all you need is siemens deka 60lb injectors to make block splitting power on e85 (over 600 crank) using your existing pump (if its rated for e85). If you have an aftermarket block, you can make about 850 on Siemens deka 80's with a walbro 450 in-tank. If you want more, you're looking at big external pumps and big injectors (120's or 160') in order to make anywhere from 1000-1500+.



To be on the safe side, or if your current pump isn't rated for e85, I'd go with a set of 80s and the walbro 450 pump now. That way you have plenty of fuel and room to grow if you want an aftermarket block. The pump is only like 100-120 bucks and the 80's can be had for the same price as the 60's.



I use the 450 and 80's in my car on e85 and it's been fine.


Yeah it's a stock block. Just want to push it to the limit and then back it off just a hair and be safe lol. The Stealth pump has been revised and is now good for e85 so with that being said all I'm looking at is an injector upgrade? I doubt I'll ever be in a spot to go with a crazy setup so I'm not too worried about having headroom on the pump and whatnot.


Sent from my iPhone using Tapatalk
Suzukikevin95 is offline  
Sponsored Links
Advertisement
 
post #4 of 8 Old 05-11-2017, 12:45 PM
Registered User
 
Trader Feedback: (4)
Join Date: Dec 2010
Location: Dallas/Houston
Posts: 1,755
Then yeah, basically a set of 60's will let you blow the block apart. lol
5.0thunder is offline  
post #5 of 8 Old 05-11-2017, 01:15 PM Thread Starter
Registered User
 
Trader Feedback: (0)
Join Date: Dec 2015
Posts: 6
Quote:
Originally Posted by 5.0thunder View Post
Then yeah, basically a set of 60's will let you blow the block apart. lol


Haha sounds good to me! I don't wanna scatter it but I definitely wanna get 500 wheel out of it. Mainly so I can say I did it, have a story for future son lol, bragging rights over a couple buddies etc. car currently runs 7.60 in the 1/8th on street tires and leaving at idle through a t5 and i would like to see 6s


Sent from my iPhone using Tapatalk
Suzukikevin95 is offline  
post #6 of 8 Old 05-13-2017, 10:48 AM
Registered User
 
Trader Feedback: (21)
Join Date: Sep 2015
Location: Midwestern Illinois
Posts: 1,328
I would​ be more concerned about the line sizing more than the injectors or pump. There are some calculators out there to help you.

For everything that is worthwhile, there is a counterfeit.
boostup89 is offline  
post #7 of 8 Old 05-14-2017, 04:06 PM Thread Starter
Registered User
 
Trader Feedback: (0)
Join Date: Dec 2015
Posts: 6
Quote:
Originally Posted by boostup89 View Post
I would​ be more concerned about the line sizing more than the injectors or pump. There are some calculators out there to help you.


I've got -8AN feed lines and -6AN return to an aftermarket hanger with the larger sized return tube as well. I would think that would be plenty


Sent from my iPhone using Tapatalk
Suzukikevin95 is offline  
post #8 of 8 Old 05-14-2017, 04:45 PM
Registered User
 
KEVIN$'s Avatar
 
Trader Feedback: (8)
Join Date: Nov 2001
Location: Lincoln NE
Posts: 3,892
-8 feed will be fine.

ks
Suzukikevin95 likes this.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Kevin Slaby
2002 GT 2V 902hp/820tq through the muffs.
http://baselinesuspensions.com/Projects/balrog.htm
KEVIN$ is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Mustang Forums : Corral.net Mustang Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale Complete Turbo/Supercharger Fuel System MavStang Fuel System & Related 4 06-22-2015 11:40 AM
For Sale e85 return fuel system 1000cc bosch injector dbmustanggt Fuel System & Related 1 10-24-2014 01:06 AM
For Sale Fore Innovations Fuel system E85 nosnation.com Fuel System & Related 5 03-12-2014 11:22 PM
E85 - modifying carbs and fuel system hkopp 5.0/5.8 Engine Tech 3 01-13-2014 10:30 AM
E85 Fuel System Questions slo284 GT & SOHC 5 02-17-2011 09:15 AM

Posting Rules  
You may post new threads
You may 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

 
For the best viewing experience please update your browser to Google Chrome