this may be a dumb question but, would it be safe to run 100 octane with my current setup?
g-force ecu
full exhaust (no cat)
intake
mild street-port
11.5 psi
would i need to adjust anything (boost, timing) before i try it out? how much HP would i be looking at roughly?

 

dumb question

 

sure, why not?

what is the gforce ECU tuned for? If it's tuned foryour mods then I don't see why not, especially with high octane gas

 

yes but if yoru not tuned for it, its a waste of money/gas.

you are not going to see any performance gain with just putting 100octane in to the tank, if anything you'll hurt your performance but gain increase in relibility

higher octane will allow you to run higher boost (well sorta, you have to tune for it...) which will give you the power your looking for

 

100 octane???? that is like.....race gas.... your car is almost like a BPU Mod.... so even just regular high octane pump gas is good enough.... like 91 - 93 octance.

 

Is all American pump gas that low an octane? We in Australia don't put low grade 94/95 octane regular unleaded into our cars, opting instead to pay the extra few cents for 98 octane.

Are there 2 different ratings?

 

Lol 91-93 is high octane in US??? I use 98 in my 650cc high compression 2 cyl Fiat 126 engine :P

 

high octane gas is used when you are boosting high and especially when you have a high CR engine... with the mods you have, and 11.5psi, you dont need 100 octane, 93 is just fine..

not to mention what all the other guys said..

 

Is this Avgas (Aviation Gasoline or some type of racing fuel? Avgas has lead in it and may not only harm your engine but is a Federal offense if used on-road. Race fuels like F & L Racing Fuel can still offer 101 octane without the lead and meet evn CARB regulations.

 

Hey Max13BREW and Swatkat, just curious how much 98 octane is in your parts of the woods?
Here in NY 100 octane is around $4.60 a gallon. In comparison 93 is currently $2.30 here. Just wondering if its only the US thats getting screwed over on our gas prices or if its a worldwide issue.

 

Yep.

U.S. octane ratings are calculated using the formula (R + M) / 2.

R is the Research Octane Number (RON), determined with a single-cylinder, variable-compression test engine running at 600 rpm. M is the Motor Octane Number (MON), determined with the test engine running at 900 rpm. In both cases, rpm is maintained and compression is increased until the onset of knocking.

We average the two numbers while Australia uses RON only, which is why you have higher octane ratings.