[Z06] Filled up today...
Thread Starter
Race Director
Joined: Mar 2006
Posts: 15,449
Likes: 1,716
From: Everywhere and Nowhere at all
Filled up today...
Have a Gas station about 15 min from my house.. 102 octane (race fuel) $6.99 per gallon.. Man, this makes my car run good! smooth... 28-34 mpg in 6th gear @ 75mph...
Anyone else..?
Anyone else..?
Drifting
Joined: Jun 2006
Posts: 1,302
Likes: 4
From: Palo Alto CA
Just a heads up that without a tune to take advantage of higher octane fuel, you are actually throwing your money away and are going to make LESS power. For the most performance, you want to run the lowest octane fuel possible without any knock. If you have a custom tune loaded to take advantage of higher octane fuel you can definitely see gains, but I suspect you are just feeling a placebo effect otherwise.
Burning Brakes
Joined: Jun 2009
Posts: 787
Likes: 1
From: New Baltimore Michigan
Unless you have a high compression motor your wasting your money higher octane will not make your car faster with stock comp. octane is the resistance to burn so the higher the octane the higher igition point. low octane gas in a high comp. motor causes pre- detination (spark knock) high octance lower comp. motor causes nothing its a placebo effect!! That is if your motor is stock
High octane gas is not liquid performance its fuel for high comp. motors
Steve
High octane gas is not liquid performance its fuel for high comp. motors
Steve
Last edited by machz800ps; Aug 24, 2011 at 08:29 PM.
Burning Brakes
Joined: Jun 2009
Posts: 787
Likes: 1
From: New Baltimore Michigan
Just a heads up that without a tune to take advantage of higher octane fuel, you are actually throwing your money away and are going to make LESS power. For the most performance, you want to run the lowest octane fuel possible without any knock. If you have a custom tune loaded to take advantage of higher octane fuel you can definitely see gains, but I suspect you are just feeling a placebo effect otherwise.
well said
Thread Starter
Race Director
Joined: Mar 2006
Posts: 15,449
Likes: 1,716
From: Everywhere and Nowhere at all
Hmmm... wonder if my milled 59cc heads,G5X2,Ported FAST 92, 42lb SVO's, custom tune count...?
Placebo effect? I think not... Thanks for your input though..
Placebo effect? I think not... Thanks for your input though..
Last edited by TXGS507; Aug 24, 2011 at 08:34 PM.
Burning Brakes
Joined: Jun 2009
Posts: 787
Likes: 1
From: New Baltimore Michigan
Drifting
Joined: Jun 2006
Posts: 1,302
Likes: 4
From: Palo Alto CA
And I don't think anyone was trying to be a jerk. We were trying to save you some money. I have met plenty of people who buy race fuel and think it makes their car run better without a tune. Most people don't know any better.
Last edited by Grimlock; Aug 24, 2011 at 08:42 PM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
Thread Starter
Race Director
Joined: Mar 2006
Posts: 15,449
Likes: 1,716
From: Everywhere and Nowhere at all
Grimmy... My car is tuned for 93-100+ octane fuel... You "assumed" i was some JA rice burning kid pumping in liquid HP.. It's laughable really. I have 3 cars and drive the C5Z for fun.. THANK YOU for the lesson though.. Perhaps you should have asked if my car was stock instead of giving me a lecture... just a thought. Not calling anyone a jerk... I posted up, good,bad, no worries here.. we all have opinions.. thank you again for your input... moving forward... back TTT
As I said, if you have a custom tune that you are uploading just for this fuel type you are going to see gains. If your custom tune is based on "normal" gas you won't. If you do have a custom tune for race gas, how are you swapping tunes? Are you using a handheld tuner? I have been thinking about getting a Diablo Predator so I could do this.
And I don't think anyone was trying to be a jerk. We were trying to save you some money. I have met plenty of people who buy race fuel and think it makes their car run better without a tune. Most people don't know any better.
And I don't think anyone was trying to be a jerk. We were trying to save you some money. I have met plenty of people who buy race fuel and think it makes their car run better without a tune. Most people don't know any better.
Tech Contributor
Joined: Jan 2004
Posts: 20,030
Likes: 289
From: Wylie TX --> Less is More, except under the hood !
Drifting
Joined: Jun 2006
Posts: 1,302
Likes: 4
From: Palo Alto CA
Grimmy... My car is tuned for 93-100+ octane fuel... You "assumed" i was some JA rice burning kid pumping in liquid HP.. It's laughable really. I have 3 cars and drive the C5Z for fun.. THANK YOU for the lesson though.. Perhaps you should have asked if my car was stock instead of giving me a lecture... just a thought. Not calling anyone a jerk... I posted up, good,bad, no worries here.. we all have opinions.. thank you again for your input... moving forward... back TTT
Thread Starter
Race Director
Joined: Mar 2006
Posts: 15,449
Likes: 1,716
From: Everywhere and Nowhere at all
Thread Starter
Race Director
Joined: Mar 2006
Posts: 15,449
Likes: 1,716
From: Everywhere and Nowhere at all
Boss,,, not being defensive... I normally run 93 octane.. i threw some 103 octane in today.. Car runs great... I don't run it all of the time.. I simply "Added" it to the existing fuel (93) to try it out... (1/2 tank)
Thread Starter
Race Director
Joined: Mar 2006
Posts: 15,449
Likes: 1,716
From: Everywhere and Nowhere at all
Thread Starter
Race Director
Joined: Mar 2006
Posts: 15,449
Likes: 1,716
From: Everywhere and Nowhere at all
My tuner (shop) actually tried to talk me into tuning for the E85 (alcohol based fuel)?? I am a bit skeptical... They explained it.. doesn't burn like GAS and there are actually several E85 gas stations close to me... Kicking it around, don't know enough about it..
Le Mans Master
Joined: Apr 2005
Posts: 8,077
Likes: 4
From: Scarborough ONTARIO
just give OP break, he is not filling this gas all the time, heck for no reason i put 94 octane in my nissan maxima one time, just for the heck of it, to my surprise car ran very smooth and got better gas mileage as well, higher octane burn slow.
Obviously you need to adjust the tune accordingly but who cares for one time filling this gas, it dont hurt for sure nonethless. on top of it, OP's car is not stock either io assumed he's got 11:1 comp atleast or higher and timing must be bumped up, milled heads takes more timing without detonation anyway so 102 octane will defenetly wont hurt.
01Z06: thanks for sharing buddy good to know.
Obviously you need to adjust the tune accordingly but who cares for one time filling this gas, it dont hurt for sure nonethless. on top of it, OP's car is not stock either io assumed he's got 11:1 comp atleast or higher and timing must be bumped up, milled heads takes more timing without detonation anyway so 102 octane will defenetly wont hurt.
01Z06: thanks for sharing buddy good to know.
Racer
Joined: Sep 1999
Posts: 314
Likes: 4
From: USA
Ethanol actually has less energy per unit than pure gasoline, BUT it has a very high natural octane around 105. So an engine fully tuned to run E85 (fuel maps and delivery) with high compression can make more power on E85 than gasoline.
Team Owner
Joined: Dec 2008
Posts: 35,874
Likes: 1,600
From: Honolulu HI