Psorcery

Anybody here try it yet? If you want the map just connect the accessport to your computer and open the app. It will auto update.

I've got a custom tune on 93 octane.. Wonder how the 100 octane OTS map performs.

SeeForce

Oof. 1 more reason to tune the car!! I've got a station within a mile of my house with 100.

(i know the second i tune it i will blow something up and own a 6 figure paper weight)

drcollie

You guys are really drinking the Kool-Aid, yes?

There is no software "Tune" that can give you big power by going from 93 to 100 octane. To actually require that would mean you would have to alter the compression ratio of the engine by changing pistons. Higher Octane fuel actually has a lower burn, and is used to offset higher compression.

If you have a 991.2 and value your warranty in the least, you will avoid this sort of thing.

Psorcery

I disagree as things have changed in modern day tuning and turbo cars.. 100 octane will not only net your more hp/tq all across the rev range, but it's also safer than 93.

Big power? Probably not but there's an increase.

He's very knowledgeable in yesterdays cars/track racing.. I don't mean that in a demeaning way. I've read other posts by him in which he was spot on.

Have you gotten your big turbos yet? Interested to see your improved 60-130 times

Moderator's note: I edited out the above personal attack post quoted in this post.

Bigs

spdracerut

I think you're forgetting the 991.2 is turbocharged. There are massive power gains to be had going to 100oct on a turbo engine through a combination of increased boost and timing. On my old evo with a 2.0l engine, just going to 93 octane from 91 was worth 25whp due to the ability to run more timing at the same boost level.

rosenbergendo

100 octane allows for much better cooling and better combustion especially in higher temp regions like South Fl.

flsupraguy

Sounds like a typical doctor...

erko1905

Where are you guys finding reasonably priced 100 octane?

Ttz06vette

100 octane enables more power through more aggressive tuning without detonation. Our engines have a conservative tune to take into account low octane and a multitude of driving conditions and styles. Factory sets limits on tables built into stock tune to preserve the engine over life of vehicle and warranty. The 100 octane tune basically allows for more timing without retard due to knock retard.(I’m sure they do more with torque tables and such as well). The other limiting factor is usually Input Air Temperature. Heat soak will also cause problems with knock retard so usually these tunes work better with improved airflow in intake, larger intercoolers, and more free flowing exhaust.

///M3THOD

Anyone try the 100oct map yet?

Psorcery

About 8 bucks a gallon. Only two stations in town have it.

I want to try it but I'd have to somehow run my tank dry to fill it up with 100.. Even then we're looking at $120 for a full tank.. Worth a try but don't want to run anything under 100 octane.

///M3THOD

Yeah, I'm going to try it also, just want the tank basically empty. I live in Atlanta and I can't even find any in the metro area. Nearest station that has it at the pump that I am aware of is 30-45 mins one way.

wareaglescott

Are there curvy roads on the way?

Ttz06vette

Racetrack will have it if you are close

///M3THOD

I wish.. straight interstate and ATL traffic