Home
What's new
Latest activity
Authors
Store
Latest reviews
Search products
Forums
New posts
Search forums
What's new
New posts
New listings
New products
New profile posts
Latest activity
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
Cart
Cart
Loading…
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Search titles only
By:
Menu
Log in
Register
Navigation
Install the app
Install
More options
Change style
Contact us
Close Menu
Forums
SVTPerformance's Chain of Restaurants
The Distillery
Fuel system for e85!! Help!!
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="JeremyH" data-source="post: 14256183" data-attributes="member: 160292"><p>The problem with beefed up returnless setups and e85 is the volume, you are moving so much more fuel which makes pulsing the pumps more challenging. Your pcm is trying to maintain rail pressure not volume. This is where a mechanical regulator in a return setup will shine. Make it way easier to tune as well, no pressure drops or spikes to worry about from ramping the pumps up and down etc.</p><p></p><p>I was running dual 340lph pumps with dual fpdms, ugraded line,filter rails etc and I went return prior to tuning on corn. Had I been going for 750-800rwhp on pump gas I would have stayed returnless though. It has its pro's for a street car.</p><p></p><p>What I did to make by high volume e85 return setup street friendly is go to a staggered pump setup with a fore fc3 controller. At key on only one 340lph pump runs for idling/cruising and then my second 465lph pump comes on with a hobbs switch only when I need it in boost.</p><p></p><p>Those 2 pumps will outflow triple ford gt pumps. I also have bosch 1000cc injectors and maxed them out around 800rwhp on corn, im running a stock 40psi base pressure. So I backed boost down and settled for 766rwhp with a few more degrees of timing. Next time I change something up im going to up the base pressure to 50psi to get a tad more out of the injectors and hit 800rwhp safely.</p></blockquote><p></p>
[QUOTE="JeremyH, post: 14256183, member: 160292"] The problem with beefed up returnless setups and e85 is the volume, you are moving so much more fuel which makes pulsing the pumps more challenging. Your pcm is trying to maintain rail pressure not volume. This is where a mechanical regulator in a return setup will shine. Make it way easier to tune as well, no pressure drops or spikes to worry about from ramping the pumps up and down etc. I was running dual 340lph pumps with dual fpdms, ugraded line,filter rails etc and I went return prior to tuning on corn. Had I been going for 750-800rwhp on pump gas I would have stayed returnless though. It has its pro's for a street car. What I did to make by high volume e85 return setup street friendly is go to a staggered pump setup with a fore fc3 controller. At key on only one 340lph pump runs for idling/cruising and then my second 465lph pump comes on with a hobbs switch only when I need it in boost. Those 2 pumps will outflow triple ford gt pumps. I also have bosch 1000cc injectors and maxed them out around 800rwhp on corn, im running a stock 40psi base pressure. So I backed boost down and settled for 766rwhp with a few more degrees of timing. Next time I change something up im going to up the base pressure to 50psi to get a tad more out of the injectors and hit 800rwhp safely. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
SVTPerformance's Chain of Restaurants
The Distillery
Fuel system for e85!! Help!!
Top