[Joshboody]

Took the E85 plunge… only 20 miles from my house, so don’t know why it took me so long.

Below are logs off meth and on meth… back to back runs.

I’m running 30% E85 and my goal was to pick tuning that would be very compatible with or without E85… in case I can’t find a station. Without it, the tuning would be a little aggressive, but not too bad. And trims look very good off corn juice also.

The setup is 1.12 scalar with ATR with slightly higher load (around 145 peak) then stock. Procede open loop table is custom and lowish settings of 60 and 50%.

I have a very conservative setup, as there was no timing reduction remotely in sight in 100deg weather. I’m going to keep it here for now, until I finally get around to replacing the clutch… colder weather will probably make this a necessity.

This is roughly a 390HP setup in 100deg weather. Pretty strong I think, but also conservative (which I like).

E85 is great!

[Ilma]

Yes...those fuel trims look great

Wish we had E85 up here in Toronto

Would love to see your OL tablle mapping.

[cn555ic]

Using E85, what is the increase in HP? What differences is it compared to Race Gas Sunoco GT 104???

[E90Company]

Originally Posted by cn555ic

Using E85, what is the increase in HP? What differences is it compared to Race Gas Sunoco GT 104???

There is no set increase in horsepower as it depends on your mix % and other factors. Most are seeing 40-60whp gains as a rough estimate, coming from pump 91-93. E85 by itself is 104 octane (I believe, feel free to correct me anyone) and when mixed with the pump it allows for more agressive timing/boost.

[Joshboody]

Originally Posted by Ilma

Yes...those fuel trims look great

Wish we had E85 up here in Toronto

Would love to see your OL tablle mapping.

I can post it later.

Originally Posted by cn555ic

Using E85, what is the increase in HP? What differences is it compared to Race Gas Sunoco GT 104???

Good question, don't know. Less expensive for sure. The cyl will be cooler with e85, which could potentially give more air mass. But in my opinion most of the cooling happens after the intake valve is closed. EGTs will be cooler also.

Ive read that e85 is not the supposed 105oct as claimed, but not sure if this is accurate info.

[Gugs]

E85 is no substitute for real race fuel.

E85 due to its cooling abilities Acts similar to 104-105 octane but is
Not the same.

E85 is great cause it's cheap and provides gains similar to
Race fuel. However you will always yield better results and power with the real deal.

[benzy89]

Race Gas + E85 FTW!




I actually have no idea how that'd work out, but worth experimenting

[cn555ic]

Originally Posted by benzy89

Race Gas + E85 FTW!




I actually have no idea how that'd work out, but worth experimenting

WOW SOmeone has to try this now! Race gas + E85= HOLY shit!

[rudypoochris]

E85 is around 96 octane, but behaves more like 100+ since the added volume cools the A/F mix and it burns colder.

You can max the stock turbos out on E85 50-50 mix alone.

[Gugs]

Originally Posted by cn555ic

WOW SOmeone has to try this now! Race gas + E85= HOLY shit!

I run it. It's jus 8.50 a gallon at the pump in wyndanch. :/
Shit is great. Power is insane and consistent.

IMO I recommend all of us running a tank through the system once.

[benzy89]

Originally Posted by Gugs

I run it. It's jus 8.50 a gallon at the pump in wyndanch. :/
Shit is great. Power is insane and consistent.

IMO I recommend all of us running a tank through the system once.

I'll wait for temps to come down into the 60-70s so the heat doesn't steal any HP & the car is less knock prone

[turb0mik3]

Originally Posted by cn555ic

WOW SOmeone has to try this now! Race gas + E85= HOLY shit!

Originally Posted by benzy89

Race Gas + E85 FTW!




I actually have no idea how that'd work out, but worth experimenting

I am actually running this setup now, lol.

[Gugs]

Originally Posted by benzy89

I'll wait for temps to come down into the 60-70s so the heat doesn't steal any HP & the car is less knock prone

The car is more knock prone without it regardless

[I3ossman]

Originally Posted by Gugs

The car is more knock prone without it regardless

im going to take a ride out and grab 8 gallons of e85. Would it be a bad idea to switch from cobb stage 2 agg to stage 2+ agg for this tank? Would be a 50/50 mix of 93 and e85. I have AR dp's, injen intake, bmw perf axle back, currently on stage 2 aggressive. I dont see any reason the car couldnt run perfectly fine on the +fmic map. With the cooling abilities e85 would add and the increased octane it should run beautifully

[benzy89]

Originally Posted by Gugs

The car is more knock prone without it regardless

Without wat? Heat?

[BMWsky]

Originally Posted by benzy89

Without wat? Heat?

No, octane.

[benzy89]

Originally Posted by BMWsky

No, octane.

When using E85, you're significantly less prone to knock/timing corrections then when using 93 octane. ESPECIALLY when the heat goes up.

I had my car ProTune'd yesterday in Maryland by Jake@PTF & had a Pump Gas Map Made (93 octane only) and an E85 Map (25%) & it was 95-100* degrees out while street tuning. The heat def limited us with the Pump Gas Map, but when we did the E85 Map we were able to push the car a little harder because of it's cooling affect & how much of an impact it has on raising the octane/eliminating timing corrections.

[BMWsky]

Originally Posted by benzy89

When using E85, you're significantly less prone to knock/timing corrections then when using 93 octane. ESPECIALLY when the heat goes up.

I had my car ProTune'd yesterday in Maryland by Jake@PTF & had a Pump Gas Map Made (93 octane only) and an E85 Map (25%) & it was 95-100* degrees out while street tuning. The heat def limited us with the Pump Gas Map, but when we did the E85 Map we were able to push the car a little harder because of it's cooling affect & how much of an impact it has on raising the octane/eliminating timing corrections.

No shit. E85 has more octane than 93.

[benzy89]

Originally Posted by BMWsky

No shit. E85 has more octane than 93.

So what was your point?

[BMWsky]

Originally Posted by benzy89

Without wat? Heat?

What was yours?

[benzy89]

Originally Posted by BMWsky

What was yours?

That I'll wait for temps to come down before I consider running Race Gas + E85, especially when Race Gas is nearly $9 a gallon.

[BMWsky]

Originally Posted by benzy89

That I'll wait for temps to come down before I consider running Race Gas + E85, especially when Race Gas is nearly $9 a gallon.

That wasn't the point, the point was that the car is more prone to knock without the octane regardless.