Running ~30% Ethanol w/93 octane in LAP3USA ECU tune (Stage 1.5+)... - Hyundai Forums : Hyundai Forum
 
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post #1 of 4 (permalink) Old 04-26-2019, 09:54 PM Thread Starter
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williamhood
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Running ~30% Ethanol w/93 octane in LAP3USA ECU tune (Stage 1.5+)...

So as you can see from my signature, I run the LAP3USA ECU tune (Stage 1.5+) with lots of bolt on performance parts. I normally always run 93 octane (E10) Costco/Exxon gas (Top Tier only) and love the way my car runs.

Since LAP3USA now has a Stage 2 tune that requires running a E30 mix (or a water/meth injection system), I decided to "experiment".

On a nearly empty tank (~50 miles range left which means I had a ~2-3 gallons left), I put 10.725 gallons of Costco 93 octane (E10) gas and drove to a nearby station that sell E-85 or more specifically "FFV Gas" which is E51% min (and can be up to 83% Ethanol for summer months) and put 5.055 gallons in which it topped off the 18.5 gallon tank.

By my figures, that should be basically E30. I began my 20 mile drive home (~78F ambient) and after a few miles noticed a bit more "pep in her step"! I didn't do the gradually change-over, I just went straight for the ~E30 mix. I'll report back what I find. I did hit peak boost at ~20.5psi on one WOT run to the barn. So far so good!



What have others done and experienced with running more Ethanol?

2012 Optima SX w/Premium Touring Pkg, "Spicy Red" | 80K miles (New engine at 76K)
Purchased 7/2012, built 3/13/2012 at GA plant.
Mods: LAP3 UncleBoost tune (Stage 1.5+), Injen SRI w/hydro-shield, 3/8" Magnefine Trans filter, PIAA Sports Horns, Fumoto Qwik-Valve, Saikou Michi OCCs (PCV&Intake), HKS M40XL Plugs, Ultra Racing FSTB, Nameless MM, 3"MP, CP w/Synapse SB V2 BOV, Theta2 TBS, CP-E 3" CBE, UR Crank Pulley, Eibach Pro-Kit w/TruHart, Advanti Kudos rims, Conti PureContact tires, 38% tint.
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post #2 of 4 (permalink) Old 05-01-2019, 10:43 PM
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dvan is an unknown quantity at this point
Im running stage 2.5 with meth. Simply adding E85 with the 1.5 tune doesn't add more power. Its HIGHLY suggested you mix some 104 octane E85 (5 gallons per tank is recommend, 2.0 and above tunes) because it will help prevent engine knock. There inst any meaningful additional power and anything you feel is most likely just in your head.
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post #3 of 4 (permalink) Old 05-02-2019, 08:01 AM Thread Starter
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williamhood
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Quote:
Originally Posted by dvan View Post
Im running stage 2.5 with meth. Simply adding E85 with the 1.5 tune doesn't add more power. Its HIGHLY suggested you mix some 104 octane E85 (5 gallons per tank is recommend, 2.0 and above tunes) because it will help prevent engine knock. There inst any meaningful additional power and anything you feel is most likely just in your head.

That's possible but with the ~E30 mix, it might not have to pull timing as much as it might with just 93 octane and create more power. I ran 21.5psi boost (79F ambient) on one WOT run the other day and I like what I feel!

2012 Optima SX w/Premium Touring Pkg, "Spicy Red" | 80K miles (New engine at 76K)
Purchased 7/2012, built 3/13/2012 at GA plant.
Mods: LAP3 UncleBoost tune (Stage 1.5+), Injen SRI w/hydro-shield, 3/8" Magnefine Trans filter, PIAA Sports Horns, Fumoto Qwik-Valve, Saikou Michi OCCs (PCV&Intake), HKS M40XL Plugs, Ultra Racing FSTB, Nameless MM, 3"MP, CP w/Synapse SB V2 BOV, Theta2 TBS, CP-E 3" CBE, UR Crank Pulley, Eibach Pro-Kit w/TruHart, Advanti Kudos rims, Conti PureContact tires, 38% tint.
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post #4 of 4 (permalink) Old 05-07-2019, 11:10 AM Thread Starter
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williamhood
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Update: So I've run a tank full now and to me I feel like the car has more pep and response running it. It seems the LAP3USA ECU Stage 1.5+ tune adapts well to it and I have NO issues to date. I just refilled with ~E25 mix and I think I might add a small amount of Lucas Fuel Treatment or MMO (like a maintenance dose) to help provide a bit more lubrication to the fuel pump and injectors. YMMV. Doing this mix also helps reduce the cost of my fill-ups just a bit with Costco 93 octane at $2.85/gal and Speedway E85/FFV at $2.05/gal (I did 12 gal of 93, 4 gal of FFV).


http://www.georgebelton.com/E85Calculator.php

2012 Optima SX w/Premium Touring Pkg, "Spicy Red" | 80K miles (New engine at 76K)
Purchased 7/2012, built 3/13/2012 at GA plant.
Mods: LAP3 UncleBoost tune (Stage 1.5+), Injen SRI w/hydro-shield, 3/8" Magnefine Trans filter, PIAA Sports Horns, Fumoto Qwik-Valve, Saikou Michi OCCs (PCV&Intake), HKS M40XL Plugs, Ultra Racing FSTB, Nameless MM, 3"MP, CP w/Synapse SB V2 BOV, Theta2 TBS, CP-E 3" CBE, UR Crank Pulley, Eibach Pro-Kit w/TruHart, Advanti Kudos rims, Conti PureContact tires, 38% tint.

Last edited by williamhood; 05-07-2019 at 11:30 AM. Reason: grammar
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