Forced Induction Superchargers | Turbochargers | Intercoolers

E85, do I need to change anything in my set up?

Thread Tools
 
Search this Thread
 
Old Jun 27, 2014 | 08:01 AM
  #1  
BALBI's Avatar
Thread Starter
On The Tree
20 Year Member
Photogenic
 
Joined: Apr 2005
Posts: 141
Likes: 1
From: Michigan
Default E85, do I need to change anything in my set up?

Please educate me. I have done some reading and decided I want to run E85 daily. I have plenty of pumps near me, seems like a win win all around.

The car is a 99 Camaro Z28, I have a D1-SC Procharger with a forged 383 running 60lbs injectors and an upgraded fuel pump. Injectors are at 85% capacity and I am running only 8psi.

My tuner tells me I need approximately 30% more fuel injector and pump capacity to equal the same power as I do with pump gas. (560whp)

Do I really need to change anything? I was under the impression I could just tune and move on.

Thoughts?
Reply
Old Jun 27, 2014 | 08:20 AM
  #2  
JoeNova's Avatar
Restricted User
 
Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
Default

So your injectors are 85%, and you know you need 30% more fuel, but don't think you need to change them?

Also what fuel pump are you using.
Reply
Old Jun 27, 2014 | 08:48 AM
  #3  
willizm's Avatar
9 Second Club
iTrader: (10)
 
Joined: Apr 2009
Posts: 1,230
Likes: 3
From: Joliet,IL and Las Vegas 50/50
Default

x2 on fuel pump. If you aren't going to push too high you could probably go 95lb injectors and dual 255 pumps. I ran that on e85 without a problem. Made 750whp at 15psi
Reply
Old Jun 27, 2014 | 09:00 AM
  #4  
SM105K's Avatar
11 Second Club
iTrader: (3)
 
Joined: Jun 2011
Posts: 344
Likes: 0
From: Scottsdale, AZ
Default

You need more fuel pump, and more injector.
Reply
Old Jun 27, 2014 | 09:22 AM
  #5  
BALBI's Avatar
Thread Starter
On The Tree
20 Year Member
Photogenic
 
Joined: Apr 2005
Posts: 141
Likes: 1
From: Michigan
Default

Originally Posted by JoeNova
So your injectors are 85%, and you know you need 30% more fuel, but don't think you need to change them?

Also what fuel pump are you using.
My math teachers asked the same thing for years

Using Racetronix 255
Reply
Old Jun 27, 2014 | 11:50 AM
  #6  
JoeNova's Avatar
Restricted User
 
Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
Default

You're going to need more injector and fuel pump. Your pump is already topping out on gas now. Your injectors, judging by the duty cycle, aren't going to cut it.

AEM sells a nice 320 LPH made just for E85. They're $120 from scoggin dickey, and a pair of them is good for however much power you'll ever decide to make on that blower. Racetronix doesn't recommend using their pumps with E85 because of rapidly reducing shelf life when exposed to E85.

I would get at least 80 lb injectors. No point in overspending on them, though. 80 lb deka injectors are 320-340 on ebay and work great.
Reply
Old Jun 27, 2014 | 11:53 AM
  #7  
greenvortec97's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Jul 2010
Posts: 554
Likes: 0
From: CroSSby, TexaSS
Default

So would -8 and -6 return be good enough for E85? assuming you have the proper injectors and pumps? not meaning to thread jack
Reply
Old Jun 27, 2014 | 11:57 AM
  #8  
JoeNova's Avatar
Restricted User
 
Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
Default

Yes, -8 feed is more than enough for most feeds and will support well over 1000whp on E85
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
Old Jun 27, 2014 | 01:15 PM
  #9  
Forcefed86's Avatar
8 Second Club
15 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: May 2011
Posts: 8,485
Likes: 1,032
From: Wichita, KS
Default

Originally Posted by BALBI
Please educate me. I have done some reading and decided I want to run E85 daily. I have plenty of pumps near me, seems like a win win all around.

The car is a 99 Camaro Z28, I have a D1-SC Procharger with a forged 383 running 60lbs injectors and an upgraded fuel pump. Injectors are at 85% capacity and I am running only 8psi.

My tuner tells me I need approximately 30% more fuel injector and pump capacity to equal the same power as I do with pump gas. (560whp)

Do I really need to change anything? I was under the impression I could just tune and move on.

Thoughts?
What is your base fuel pressure at now?

For 560 WHP there's no need to change the fuel lines. Get 2 intank walbro 450's pumps. ($134 shipped each) I think that and a retune is all you'll need. At only 8lbs of boost, you should be able to make up the difference with additional fuel pressure and get by with 60lb injectors.
Reply




All times are GMT -5. The time now is 08:05 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE