Ok, as posted in another thread I am planning on running over to Moroso Motor Speedway up here, to make 1 or 2(max) 1/4 mile runs with the Turbo and I have a quick question. Is my Stage 2 IA software set up for a specific fuel octane?? Is a it a good idea for me to fill up with higher octane (I think they have 103 or somthin..)?? Is there any harm to this, and better yet is there an upside??? This will most likly be my only trip to the strip since I don't want to abuse the Turbo so I want to do it right, and get the best run I can.
Thanks,
Evan
PS-Going tonight so any quick help would be great (I am in school and won't be able to check again till around 2pm, but TIA for the help gotta beat this Z06, he'll never let me live it down )

 

Hi. There should be absolutely no harm running a higher octane
fuel. Your chip is surely tuned to standard pump super, but as
long as you run a professionally delivered *UNLEADED* race
gas, you *might* gain a *little*, but wouldn't hurt anything.
If you run a leaded gas, you can damage your catalytic converters.
Joe

 

AMG-ETR,

You should have no problems per say running race gas on a street chip, however you may not want to purchase enough fuel to fill the tank up unless you plan on doing high speed driving to burn off the 100+ octane.
100+ octane is much more difficult to burn/ignite as opposed to 91-94 octane.

Also make sure you are purchasing unleaded.

Good Luck.

 

evan..pm me..i want to ask you a question about moroso....

 

Sorry for the lame question ...But when you say "100+ octane is much more difficult to burn/ignite as opposted to 91-94 octane"...what does that exactly mean? And, how does that hurt/harm the car?

Thanks in advance!

 

Not lame, was wondering the samething...
Evan
PS-Not going to track dad won't let me

 

Basically the way that fuel is used is that fuel is delivered into the chamber, spark plugs ignite fuel with the air... thus creating combustion.

100+ octane is not as flamable. Thus more difficult to burn/ignite. This is why you should not use 100 octane for normal street driving. You will actually feel the engine choking up driving at a moderate 35mph.

Hope this explanation helps.

 

Octane is as follows the higher octane level the more resistant the fuel is to "detonation" (pinging as it is sometimes called) This allows the timing to adjusted and power to be gained. If the timing is not adjusted accordingly then the engine does not have the ability to use the extra octane in the fuel (i.e. negating the power gain for high octane fuel). So high octane fuel or race gas will give you a cheap insurance policy when running your car hard at the track. The high octane race fuel will most likely not give you any noticeable performance gains.


Colin Miller
www.pes-tuning.com

 

You can always run a blend. Put half a tank of 93 or whatever octane you have available and half a tank of 100 octane race fuel. That will probably give you a perfect blend even for the street. I usually wait until I have a little more than half a tank of 93 and then add about 1/3 to 2/5 race fuel. I figure I run about 95-96 octane.

-Lou

 

don't use over 100octane on ur car...^_^
b/c they're leaded fuel....

i believe the highest ocatane avialble so far for unleaded is 100...
i don't think it's a harm to use higher rating^___^...I've been using 100 quite a serveral times...and the car do perform better with higher octane fuel...

 

luting_chen,

I think you have been misinformed.
You can use up to 104 octane unleaded.
Leaded fuel over 100 octane is available though.

 

Thanks guys, like I said I won't be running my car, but its good to know. Heh we have the whole PES tuning crew here .
Evan

 

Evan,
Um, do you need me to still answer that question. LOL???

Like the PES gang said, you can run it and unless the mapping is set for the use of higher octane then the system will not take advantage of it. It is always beneficial to run several points higher as this keeps the parameters to the top of the scale, however high octane will not add hp without added tuning.

 

Heh, thanks Stephen where ya been?? Its been all day without a post from you, is everything ok, are you sick j/k .
Like I said though, my dad won't let me run the car
Regards,
Evan

 

Pretty bad when you guys notice I am MIA..I have been doing a few computers and am building two motors at once. All in the middle of this I leave for German Fest tomorrow. I am beat! Don't freak on me...I will not be in full force until Monday.