New Mustang with 2.3L Ecoboost loses 11% in horsepower with 87 octane

[rooSTer]

Wonder if we lose about the same on 87 octane.

According to this document, the 2.3-liter EcoBoost makes 275 horsepower and 300 pound-feet of torque when running on lower octane fuel. That's a substantial reduction of about 11.3 percent compared to when the engine drinks 93 octane. Interestingly, according to Mustang 6G, that finding was a bit better than expected, because a Ford engineer reportedly said power would be down about 13 percent without altering peak torque.

http://www.autoblog.com/2015/01/05/2015-ford-mustang-ecoboost-loses-big-power-on-87-octane/

 

[ryst]

I've never seen a dyno run comparing stock 91/93 to stock 87. I'd be interested to see it.

If you look at the tuning tables in Accesstuner, when the car detects low octane fuel it's pretty aggressive how much timing it removes.

 

[rooSTer]

Me too.

I've never seen a dyno run comparing stock 91/93 to stock 87. I'd be interested to see it.

If you look at the tuning tables in Accesstuner, when the car detects low octane fuel it's pretty aggressive how much timing it removes.

 

[CanadianST]

Makes me wish i had somewhere to buy 93 in my province :/ never sees below 91 though. Maybe I'll just open up my own gas station

 

[re-rx7]

I ran a Ecoboost mustang last night with a tune in my fist. Pretty even till 100 then he walked me. Protune is coming on Sat.

 

[airjor13]

I ran a Ecoboost mustang last night with a tune in my fist. Pretty even till 100 then he walked me. Protune is coming on Sat.

Same here, ran a bone stock Ecoboost Stang auto. 30-100ish highway roll, dead even till about 85ish, then he pulled about half a car length on me before letting off. Ran him one more time down the road, pulled ahead on him from 75+ about half car length. Mutual thumbs up all around LOL! He was surprised and I was too! Talk to him a bit after we pulled off at a gas station.

 

[re-rx7]

Same here, ran a bone stock Ecoboost Stang auto. 30-100ish highway roll, dead even till about 85ish, then he pulled about half a car length on me before letting off. Ran him one more time down the road, pulled ahead on him from 75+ about half car length. Mutual thumbs up all around LOL! He was surprised and I was too! Talk to him a bit after we pulled off at a gas station.

Bigger turbo. lol Yea he was on a Stg 1 OTS.

 

[BoostBumps]

Thread cleaned to stay on topic...