anyone using premium gas ? - Page 28 - Ford Focus Forum, Ford Focus ST Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum > Ford Focus Third Generation > DURATEC Ti-VCT Performance (2012-Current)

DURATEC Ti-VCT Performance (2012-Current) The place to chat about any Duratec 2.0L Ti-VCT engine performance, tuning and exhaust related upgrades.

Search This Forum | Image Search | Advanced Search    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 05-22-2012, 08:42 PM   #271
eweisbard
Focus Jr. Enthusiast
 
Join Date: May 2012
Fan#: 99164
Location: Louisville, KY
What I Drive: 2001 white Focus se

Posts: 35
FF Reputation: 1 eweisbard Good Standing Member
Buy-Sell-Trade Rating: (0)
By the way it is you being super negative, name calling, and unfriendly. Not showing behavior worthy of a discussion group.
I have not done anything but state opinion.
eweisbard is offline  
    Reply With Quote
Sponsored Links
Advertisement
 
Old 05-22-2012, 08:45 PM   #272
Power Surge
Focus Enthusiast
 
Join Date: May 2008
Fan#: 55878
Location: Palm Coast, FL, FL
What I Drive: 2012 Race Red SE 5-door

Posts: 333
FF Reputation: 1 Power Surge Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by dyn085 View Post
It is merely frustrating when someone hasn't tried it in their vehicle (three tanks, that's all I ask), and show up preaching how it doesn't work.

I didn't believe it until I saw it personally. I just didn't jump on a forum and start criticizing everyone without first-hand knowledge. The SEL I owned for 1100 miles never saw a drop of premium.

Only after seeing the increase have I gone to bat for it. I'm hoping you see the same increase as many of us have. You won't save thousands of dollars in the first two years, but I'm sure you'll be pleased knowing that you are getting that few extra ponies, your injectors will be seeing a miniscule amount of less carbon (which adds up over time and may be a real concern in the future), and are saving a penny or more per mile driven to boot.

There should be a high-five emoticon, I think.
Well, you know, a few pages back I sounded like "that guy" too, lol.

I DO stand by my original statement - you will not gain anything strictly from the gas being a higher octane.

Obviously Ford has finally come up with a decent knock strategy, after 20+ years of garbage knock technology. I actually spent over a year developing a "performance" knock strategy for the Gen2 Lightning that limited spark knock without sacrificing performance. Ford just gave up on that one and turned the damn knock sensor off in the Lightning, lol. GM has been using insanely awesome knock programs for many years. Theirs are so good, that some real HACK tuners will just make the entire spark tables like 40 degrees and let the computer pull timing back to max spark with no knock.

Our setup works similar, the PCM senses knock, and retards accordingly. If you run 87, there will be some inaudible spark knock and the PCM will pull timing. If you run 93, you'll have less spark knock and the PCM will add timing. If your car doesn't spark knock on 87, then you'd already have good timing and those are probably the guys NOT seeing an improvement from the 93.
__________________
Sal
2012 Race Red 5-door SE, 18" Ti wheels, Ti headlights/fog bezels, 20% tint, debadged trunk
2002 Sonic Blue SVT - supercharged (sold)
2008 Vista Blue SE (gone)
Power Surge is offline  
    Reply With Quote
Old 05-22-2012, 08:50 PM   #273
dyn085
That Guy
 
dyn085's Avatar
 
Join Date: Apr 2012
Fan#: 98047
Location: Fayetteville, NC
What I Drive: 2014 FiST/FoST

Posts: 12,199
Points 23,746, Level 94
Points: 23,746, Level: 94 Points: 23,746, Level: 94 Points: 23,746, Level: 94
Level Up 40% Completed
Level up: 40% Level up: 40% Level up: 40%
Forum Activity 12%
Activity: 12% Activity: 12% Activity: 12%
FF Reputation: 49 dyn085 Great Standing Member
Buy-Sell-Trade Rating: (5)
Quote:
Originally Posted by eweisbard View Post
By the way it is you being super negative, name calling, and unfriendly. Not showing behavior worthy of a discussion group.
I have not done anything but state opinion.
I understand, hence, my apology. It's the best I can offer.
dyn085 is online now  
    Reply With Quote
Old 05-22-2012, 08:58 PM   #274
eweisbard
Focus Jr. Enthusiast
 
Join Date: May 2012
Fan#: 99164
Location: Louisville, KY
What I Drive: 2001 white Focus se

Posts: 35
FF Reputation: 1 eweisbard Good Standing Member
Buy-Sell-Trade Rating: (0)
Its all cool.
eweisbard is offline  
    Reply With Quote
Old 05-22-2012, 09:11 PM   #275
raptor1956
Focus Addict
 
Join Date: Apr 2012
Fan#: 97725
Location: Taylorsville, UT
What I Drive: 2012, Sonic Blue, Focus Titanium

Posts: 1,220
Points 3,967, Level 40
Points: 3,967, Level: 40 Points: 3,967, Level: 40 Points: 3,967, Level: 40
Level Up 9% Completed
Level up: 9% Level up: 9% Level up: 9%
Forum Activity 3%
Activity: 3% Activity: 3% Activity: 3%
FF Reputation: 1 raptor1956 Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by eweisbard View Post
I guess the schools I went to by engine manufacturers were all wrong.
In the training schools you went to what octane would they say you need for an engine with 12:1 compression ratio?


Brian
raptor1956 is online now  
    Reply With Quote
Old 05-22-2012, 09:26 PM   #276
r1derbike
Focus Addict
 
r1derbike's Avatar
 
Join Date: Feb 2009
Fan#: 62667
Location: Bella Vista, AR
What I Drive: '12 SE Sport Hatch - Sterling Grey

Posts: 832
FF Reputation: 4 r1derbike Good Standing Member
Buy-Sell-Trade Rating: (0)
All I know is, by the looks of my tailpipe, all the soot/carbon/whatever resides in its opening. I suppose it's better there than in my engine...
__________________
2012 Focus; Maybe 3rd Time's the Charm?
r1derbike is offline  
    Reply With Quote
Old 05-22-2012, 09:40 PM   #277
mustang0
Focus Enthusiast
 
mustang0's Avatar
 
Join Date: Mar 2012
Fan#: 96079
Location: racine, WI
What I Drive: 2012 Blue Candy SE HB Sport Package

Posts: 406
Points 686, Level 13
Points: 686, Level: 13 Points: 686, Level: 13 Points: 686, Level: 13
Level Up 72% Completed
Level up: 72% Level up: 72% Level up: 72%
Forum Activity 1%
Activity: 1% Activity: 1% Activity: 1%
FF Reputation: 1 mustang0 Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by eweisbard View Post
Octane is for antiknock, if its not knocking whay do you need more. Here is something else that I learned a a training school. Ocatne makes fuel more stable to prevent autoignition, meaning ignition from a source other than the spark plug like a hot piece of carbon. Too much octane can actually cause an adverse effect by making fuel harder to ignite reducing performance. I have tried it with absolutly no effect in my 2.0 zetec. Dont assume what people know or have tried.
People need to read the whole post this has been beat to death. The 2.0 Duratec computer advances timing till it sees knock. When you can advance timing you will see a performance gain. Obviously you need a motor with more compression to utilize the higher octane and this car has a 12to1 motor. If it were a 9to1 motor probably wouldn't see much gain. I don't know what zetec's had for compession but am betting alot less than 12to1 or if they had the avanced cam controls these motors have, that also makes a difference.
__________________
65 Racestang 96 Mustang 2012 Focus SE HB Sport Pac 5 speed man. NewMission Cold Air, lunchbox Delete,Custom 3" Magnaflow exhaust, Steeda Rear Sway Bar, Steeda STS,Axis wheels, Blox shift knob,Focus elecrtic RMM, Injected 93 Tune V1 176HP 152Torque
mustang0 is offline  
    Reply With Quote
Old 05-22-2012, 09:41 PM   #278
AZfocus2012
Focus Addict
 
AZfocus2012's Avatar
 
Join Date: Dec 2011
Fan#: 92484
Location: Apache Junction, AZ
What I Drive: 2012 White Platinum SEL 303A Focus

Posts: 658
FF Reputation: 2 AZfocus2012 Good Standing Member
Buy-Sell-Trade Rating: (0)
The contrarian drives a 2001. Did that car have TI-VCT? It may not help in his car.
AZfocus2012 is offline  
    Reply With Quote
Old 05-22-2012, 09:49 PM   #279
eweisbard
Focus Jr. Enthusiast
 
Join Date: May 2012
Fan#: 99164
Location: Louisville, KY
What I Drive: 2001 white Focus se

Posts: 35
FF Reputation: 1 eweisbard Good Standing Member
Buy-Sell-Trade Rating: (0)
The main discussion here is an 87 octane engine being run on higher octane, and if ther would be an advantage. Like I said in my previous post, you cant trust 87 octane to be 87 octane. It could be 65. Known for a fact to be true at times. If you run poor quality fuel and switch to 93 you would probably notice a difference. They did not talk about at school the requirments of specific engines, just that if they are not knocking they dont need more octane. One thing that concerns me about this discussion is that everyone says that efi can adjust for knock from low octane, but at what cost. If timing must suffer for no knock then performance should too. But this is not even what the whole discussion has been about, it is extra octane, is there a benefit.
eweisbard is offline  
    Reply With Quote
Old 05-22-2012, 10:05 PM   #280
Kabigon
Focus Fanatic
 
Join Date: Jul 2011
Fan#: 88299
Location: Torrance, CA
What I Drive: 2012 sterling gray Titanium

Posts: 3,067
Points 3,768, Level 38
Points: 3,768, Level: 38 Points: 3,768, Level: 38 Points: 3,768, Level: 38
Level Up 79% Completed
Level up: 79% Level up: 79% Level up: 79%
Forum Activity 8%
Activity: 8% Activity: 8% Activity: 8%
FF Reputation: 11 Kabigon Great Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by Power Surge View Post
And how do you think the PCM knows what octane fuel is being used?

By the amount of spark knock it picks up.
Yes, but what is your point?
Kabigon is offline  
    Reply With Quote
Reply

Bookmarks & Social Networks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 03:16 PM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Terms of Use : Privacy Policy : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Acura TLX or Fiesta ST. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area.