500 inch Wedge on E85

[heyoldguy]

Not knowing a thing about E85, other than I could supposedly use it on a high compression engine, and wanting to enter our 14.5:1 compression 500 wedge in a street engine dyno contest, I tried to force a 1090 cfm King Demon to work on E85.  Funny how the darn thing never did work right.

I wanted to run in the Dyno Max Power to the Wheels contest in the all motor class. I could get in the contest if I could get the '72 Demon "street legal" according to the rules. The lights, horn, interior carpet, fuel level gauge and all that other stuff was no problem, but the fuel for the contest was the sticker, 93 octane pump gas or E85. At 14.5:1, 93 octane was not gunna work. I was stuck with E85 if I could get it figured out.

We just took the carb and started drilling holes bigger and using smaller air bleeds. Hah, what goofballs!

1974 440 factory block
500" 440 Source stroker kit
4-bolt main kit
Ported Edelbrock Victor heads
Indy 3X intake
Harland Sharp 1.6:1 rockers
Erson solid roller 280/288 @ .050, .800"/.800" lift
14.5:1 compression
1090 King Demon

Figured we needed about 8:1 A/F ratio.

At 12:1 we made 680 HP. Drill some bigger holes! Exhaust gas temperatures at 800-900 degree range!
At 11:1 we made 760 HP. Smaller air bleeds and drill bigger holes over here! Exhaust gas temps to 1000 degrees.
At 10:1 we made 845 HP at 7200 rpm and 657 TQ at 6000 rpm. Exhaust gas temps to 1100 degrees and the intake manifold is icing!

Never got to 8:1 A/F ratio, we were out of dyno time and the air bleeds were so small I wasn't sure there was any emulsion air getting to the metering blocks!

Before the dyno contest, Quick Fuel Technologies helped us with metering blocks and told us what to order from Barry Grant for boosters, so we at least had a chance at the contest. Until.......the 572 ci and 654 ci Keith Black hemis showed up. Still, our 696 HP to the wheels was enough for 3rd place in the finals. 

[Budnicks]

  Is that you IQ52, I'm just curious...

[heyoldguy]

Budnicks, you found me!

[Budnicks]

Welcome to the forum buddy

[mauve66]

sounds like you dun good

[Budnicks]

Great combo, I can't wait to see new contest combo's results...

[200MPH]

Not knowing a thing about E85, other than I could supposedly use it on a high compression engine, and wanting to enter our 14.5:1 compression 500 wedge in a street engine dyno contest, I tried to force a 1090 cfm King Demon to work on E85.  Funny how the darn thing never did work right.

I wanted to run in the Dyno Max Power to the Wheels contest in the all motor class. I could get in the contest if I could get the '72 Demon "street legal" according to the rules. The lights, horn, interior carpet, fuel level gauge and all that other stuff was no problem, but the fuel for the contest was the sticker, 93 octane pump gas or E85. At 14.5:1, 93 octane was not gunna work. I was stuck with E85 if I could get it figured out.

We just took the carb and started drilling holes bigger and using smaller air bleeds. Hah, what goofballs!

1974 440 factory block
500" 440 Source stroker kit
4-bolt main kit
Ported Edelbrock Victor heads
Indy 3X intake
Harland Sharp 1.6:1 rockers
Erson solid roller 280/288 @ .050, .800"/.800" lift
14.5:1 compression
1090 King Demon

Figured we needed about 8:1 A/F ratio.

At 12:1 we made 680 HP. Drill some bigger holes! Exhaust gas temperatures at 800-900 degree range!
At 11:1 we made 760 HP. Smaller air bleeds and drill bigger holes over here! Exhaust gas temps to 1000 degrees.
At 10:1 we made 845 HP at 7200 rpm and 657 TQ at 6000 rpm. Exhaust gas temps to 1100 degrees and the intake manifold is icing!

Never got to 8:1 A/F ratio, we were out of dyno time and the air bleeds were so small I wasn't sure there was any emulsion air getting to the metering blocks!

Before the dyno contest, Quick Fuel Technologies helped us with metering blocks and told us what to order from Barry Grant for boosters, so we at least had a chance at the contest. Until.......the 572 ci and 654 ci Keith Black hemis showed up. Still, our 696 HP to the wheels was enough for 3rd place in the finals. 

WOW!

[Budnicks]

Those are still great #'s to the wheels with 500ci 845hp gross & 696hp net & even for 3rd place after a 572ci & 625ci Hemi engines

[200MPH]

exactly!