E85 and Holley EFI
 

OK - I am thinking on going to E85
What is the best CR for a 598 CI burning E85 - think I heard 14 to 1
Also I have Holley EFI - The FAST system uses a fuel sensor to sense what fuel is being run.
Can this same sensor be wired into the Holley EFI ?

Supercharged E85 works nice.

That was my other thought - Whipple and E85

With E85 do you still need to run an intercooler?

We do, 15 psi and E85 seems to work well.

we race a turbo LS on E85(last 6 years) no IC 25psi, 1500hp awesome stuff, we ck it at the pump before we buy, most of the time its about E87-89, and we dont buy in winter, they put more gas in to aid starting when cold. stuff does not want to start when cold, only neg I've seen

So IF I go natural aspirated what CR should I run?
They make a tool for testing the fuel.
What about the sensor that they use with the FAST system?

12-1

IF I was to go to a Whipple what size for a 598?
My engine was designed and built to install an M4 Procharger.
I know that that would be the best choice but they are BUTT UGLY
This same engine produced 1425 HP on Dave Wesseldyke's dyno with the M4.
I have enough room to install the intercooler under the engine and IF I could install the M4 as low as possible and run the pipe up the back of the engine that goes to the carb hat I might be able to do that.
I like the looks of the Whipple but I will be going sequential port EFI.

My other thought was to talk to Tom Airhart and go to a turbo charger system.

You can run the GM flex fuel sensor with the Holley system to compensate for different ethanol amounts

Do you know how it connects to the Holley ECU?

To me E85 loves boost, works well with about 12-1 or so, but great with boost

I love E85 for a hot rod fuel.....but availability on the water, reduction in range and possible fuel tank damage (although I have not encountered fuel system issues on my cars) have kept me away from it for my boats.

Ive only used it in turbocharged applications. Ive run up to 23 lbs of boost on a 100% stock long block SBC without issues (blowthrough carb, non-intercooled) in a street car toy that sees the track a few times a year.

My vote is you do it for a forced inducted engine...then if you have to run gas or change your mind you can just reduce boost to fit the fuel.....if you had a high compression engine converting back to gas would be much more work and $$$.

We've been running E85 in the boat for 6 years now without any tank issues. But we trailer the boat and just fill up along the way.

Another alternative that I have been thinking about is using a 100% staged system for a turbocharged application.

Small primary injectors for "cruising" on 87 oct...........then larger injectors upstream for boost that meter a higher octane fuel. (E85, methanol, Avgas, etc)......an "octane on demand" set up.

I believe the Holley Dominator ECU is capable of this....most of my research has centered around Megasquirt products and I know MS3 can support staged injection.

Sweet Bronco administrator on that page is showing !!
:)

twin 2.9 gen 3's will do 1300+hp on 572's.;)

Friend of mine did this in his car. He estimates that it makes 2200 hp. It made over 1700hp on a chasis dyno on E85 two years ago before the changes with less boost. Car runs something like 7.46 @ 198mph... He is running methanol under boost and 93 octane while cruising and it automatically stitches over from gas to the meth system. Car won Big Block Super Street Power Adder at Drag Week this year. He used to run E85 with a methanol injection system to cool the charge. He's using two injectors per cylinder for the meth system and a single injector per cylinder for gas. Haltech ECU.

^badass!!

I love meth!....lol

Most people wont run a 4.6 bore with heavy boost don't think the head gaskets stay in place too good. Just be carful.