He said a 1/4 tank of 100oct. He didn't say the tank was full. It was more than likely empty except for the 100oct.

Yes, I tell people not to mess with race gas when stock, because they can't get the same gains out of it as if they had a tuning device and an MBC. With an S-AFC and MBC, I'm able to get the most out of race gas. This doesn't mean there is no potential gain from race gas while stock, just that it's not worth the price of the gas to bother. Even so, in this scenario, we don't know how much of it came from the race gas or not. It makes no sense that he even used 100oct if he doesn't consider it a "mod" or "helpful."

Oh, at the very beginning, Asta said this, "that prob gave it the litte extra nudge it needed into the 12's" in reference to the race gas.

 

Then you would say ... Stock cams and Turbo on race gas .. whats so hard in that ...

In jamaica the most we can squeese out of evos are high 13's we only get 90gas out here and also its hot like a mug

 

Huh? Irrelevant comment again...

 

Agreed .. never disputed that , all im saying is the correct term would be to Say stock car on race gas .. he does not have a modified evo

 

Nice driving. The EVO9 sounds pretty quick.

I think its funny that so many people make such a big deal out of drag racing time slips when in reality the EVO wasn't intended to be a drag car. Go put that ACD to work!

 

This was on a fresh tune, 11.2 AFR in 100 degree heat. The needle wasn't erratic, my plugs don't look like the car has been running lean either, actually they look pefect.

Was on fresh plugs too, come to think of it.

 

bump for the slip already

 

both of us have assumed the two extreme ends of the "amount of fuel in the tank" spectrum. i doubt he had no regular fuel in there. agreed it doesn't make sense but intentions does not justify what is stock and what is not. i would consider a guy with a bov only to be stock as there is no performance gain, regardless if the noob thought it was or for that matter stated that he thought his bov was the reason he ran a 12.XX. and i think you would be wise to put in race gas everytime you raced for safety and to prevent timing being pulled. running multiple times will get your car pretty hot and less efficient. race gas will help to reduce that.

i only used those who had the year of there evo in their avatar. unofficial count through 8 pages
05s who think race gas is the reason this 06 ran a 12.89: 11
05s who think it made no difference: 4

pre 05s who think race gas makes a difference: 3
pre 05's who don't: 13

coincedence, no. jealousy, yes.

Quote:

Originally Posted by 4TUN8

This was on a fresh tune, 11.2 AFR in 100 degree heat. The needle wasn't erratic, my plugs don't look like the car has been running lean either, actually they look pefect.

Was on fresh plugs too, come to think of it.

great, post your datalogs of your timing on and before those runs. since everyone needs physical proof on this site. i don't think plugs will show a little variance in timing?

why doesn't someone post what their "stock" 05 did on race gas. i don't even care if it was c16, even though that would be such a big difference apparently.

 

Not a huge drag racer either, but it's a good indicator of total AWP factored in with baseline pulls from a variety of dynos and vendors. Drag racing is to see what she can do, even if it was not intended for this purpose specifically, obviously with some technique involved.

Still no slip

Launch RPM? Limiter?

Now I would like to see if a dif. between 91 and 100 can be demonstrated on a dyno or at the track-interesting stuff. (on a car mapped for 91)

 

Good post. Drag racing is a good indicator of power.

 

I'm going to add my 2cents to this pile of dog poop.

octain = how resistant a fuel is to heat, the greater the number the more heat resistance present.

Running to high an octain you will actually lose HP because the higher the octain the SLOWER the burn. Slower burn means less fuel is burned which mean less heat is released and less heat = less power. Too much octain is a bad thing. That is why when you add more octain you have to lean out the A/F mixture (add less gas to make up for the slow burn) and/or turn the boost up.


Congrats on the sick times, can't wait to see what you or your friend run onces its modded

 

I agree. Its nice that this guy posted his finding. Who cares if it was race gas or not. Most of you yahoos run race gas at the track anyway.

Was the car stock? YEP
Did race gas make a difference? YEP
Do I care if race gas was used? NOPE
Do I care that he didn't lie about it? YEP
Is the EVO9 a 12 second car from the factory? YEP
Would I like an 06 instead of my 03? YEP
Am I willing to drop 10K to do it? NOPE

Lets congratulate and thank this guy for posting this info.

 

Thats not true. I had an 03 and now I have an 05 and both of them gained noticeable hp and torque when I switched from the 92 to 94. The owners manual even says that the Evo needs 94 but it will run on 91. I think it just retards the timing a lot on anything less than 94.

 

When are peeps finally gonna believe that Evos love high octane!!

 

That is correct, but since the car was stock (assuming) and he has no manual boost control, the boost was at stock levels.

No. If your car is NOT knocking what-so ever, your timing will be advancing, period, even on 91. By dumping in 93, it will be doing the same thing the 91 was. Its not going to advance your timing more... its either doing it.. or its not. However, if while running the 91 your getting 5-8 counts of knock and your timing is holding or retarding.... well then using that 93-94 will help because it will supress more knock and ALLOW the timing to advance (assuming the extra octane cures the knock).

Overall, given the cool weather, I highly doubt his car was knocking but we wont know for sure. It is possible the 100 octane helped? Sure. Likely? No.

To the guy whose time improved by using race gas... well that just means your car isnt tuned that well on pump, or it was a very hot day, or maybe you happen to have some bad gas.

Shortly after I got my car tuned, I dumped in 5 gallons of 112 leaded with 1-2 gallons of 93. Mix was probably around the 106 magin with leaded content.
My car did not feel the slightest bit faster, at all. Why? Because my car was tuned very well I was already getting no knock obviously. (I had the car tuned that month and was getting no knock even at 22psi)

Im willing to bet, take a bone stock EVO (any of them), throw in some race gas on a cool day, and it wont much.