Need ideas on a flexible fuel system
Thread Starter
Joined: Nov 2009
Posts: 1,621
Likes: 31
From: THORNTON, PA (NEAR PHILLY)
Need ideas on a flexible fuel system Hey guys, going to try and run this 5.3/s475 on e85 as there is a station up the street (just one station here and nobody else even close by!) so I'd like to try it based on all the positives I hear. I'm shooting for ~600 rwhp for now, and probably alot more in the future. I currently have a Holley Dom twin pump, going to order -10 and -6 lines, use a Holley Dom FRP, and a set of fuel rails.
Should I bother doing this as there's only one e85 station, or full steam ahead on the e85 idea? If I stick with 93, I can go with smaller lines and injectors. I will use a meth sys either way I think.
Seems like a need a completely different (larger) system for e85. I'd like to find something in the middle if possible that will work all around, cost effectively of course. Thanks!
Should I bother doing this as there's only one e85 station, or full steam ahead on the e85 idea? If I stick with 93, I can go with smaller lines and injectors. I will use a meth sys either way I think.
Seems like a need a completely different (larger) system for e85. I'd like to find something in the middle if possible that will work all around, cost effectively of course. Thanks!
It all will come down to how much you drive it. Bear in mind e85 has a much higher fuel consumption rate. I will not lend my opinions on it since the e85 lynch mob will come after me again. But I am in basically the same situation as you, and I chose to stick with pump/meth. I hope you find the solution that best suit your application
Thread Starter
Joined: Nov 2009
Posts: 1,621
Likes: 31
From: THORNTON, PA (NEAR PHILLY)
The car is just a toy really, not DD at all. But I'd like to turn the wick up at some point.
Is there a point in terms of HP were e85 becomes more appropriate??
Is there a point in terms of HP were e85 becomes more appropriate??
9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
Such a grey area really, as it depends on the build, cam, compression, boost, intercooling etc.
In very general terms
Up to 600, pointless.
600 - 800 worth it if readily available and you can afford it, but not needed ( meth recommended )
800 - 1000, E85 recommended, not essential ( but needing meth )
1000+ if E85 is available, you'd be a fool not to use it.
In very general terms
Up to 600, pointless.
600 - 800 worth it if readily available and you can afford it, but not needed ( meth recommended )
800 - 1000, E85 recommended, not essential ( but needing meth )
1000+ if E85 is available, you'd be a fool not to use it.
Staging Lane
Joined: Oct 2002
Posts: 96
Likes: 0
From: Hot Houston Tejas
"If" You're using one of the newer PCMs E40/E38/E67) you could take advantage of the GM Flex Fuel Sensor tuning.
All the info is HERE
I'm reading up on it for future reference. My car has just came off jack stand status about a week ago. So it's still a good way off for me to actually have a need to delve into it much further than "knowing its an option."
All the info is HERE
I'm reading up on it for future reference. My car has just came off jack stand status about a week ago. So it's still a good way off for me to actually have a need to delve into it much further than "knowing its an option."
Trending Topics
Thread Starter
Joined: Nov 2009
Posts: 1,621
Likes: 31
From: THORNTON, PA (NEAR PHILLY)
Such a grey area really, as it depends on the build, cam, compression, boost, intercooling etc.
In very general terms
Up to 600, pointless.
600 - 800 worth it if readily available and you can afford it, but not needed ( meth recommended )
800 - 1000, E85 recommended, not essential ( but needing meth )
1000+ if E85 is available, you'd be a fool not to use it.
In very general terms
Up to 600, pointless.
600 - 800 worth it if readily available and you can afford it, but not needed ( meth recommended )
800 - 1000, E85 recommended, not essential ( but needing meth )
1000+ if E85 is available, you'd be a fool not to use it.
When you say "afford it", are you referring to the fact that more has to be used than gasoline??? If your #'s are RWHP, my goals are in 600-800 range, which is in the "worth it" segment.
Also be running the Holley HP, so no flex fuel sensor as far as I know. A/A I/c, meth if needed, stock 5.3 LM7, and I'm guessing in 14-18 psi range.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo 9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
I'm referring to the fact the fuel system in every respect will need upgraded, plus the extra cost of the fuel. ( again this will depend on actual price in your area and how much you will use, so again is entirely up to the individual )
Can 800 be made on pump+meth ? Of course it can.
Will it be easier and safer on E85 ? Of course it will.
As I said, the above was a very very general guide and only my own opinion.
I would love to even have the option of E85...but it simply isnt available here.
Can 800 be made on pump+meth ? Of course it can.
Will it be easier and safer on E85 ? Of course it will.
As I said, the above was a very very general guide and only my own opinion.
I would love to even have the option of E85...but it simply isnt available here.