I personally have tried the 110 octane in my 8. There is no real difference in any performance. The reason that I used the 110 octane is because I was having detonation issues with running a 50 shot of nitrous. Once I upgraded my fuel to the 110 octane this eliminated all of my detonation issues. The 110 that I am using is Unleaded.

 

Dynamite also needs a blasting cap, it's made up of nitroglycerin (sp?!) and wood pulp to make it more stable.

 

Thats true, however in AZ it seems like 99% of the stations only provide 91 octane as their premium gas. If I can find 93 I will definitely use that but in the meantime I may have use 110 every now and then.

 

Just for the record, I have gotten my best times off 87 octane. I have only gone up to 101 though. There has been a lot said in here about rotaries lower octane. Scott from Mazsport tunes his Interceptor N/A for lower octane.

 

how much is that 110 oct. like 5 bucks a gal?

 

Running 110 octane gasoline in your car probably will not do much for anything (performance wise, it could lighten your pocketbook quite a bit though), and it may actually hurt your vehicle. People have already mentioned that it could be leaded (I'm sure you'll check but it's just a friendly reminder). Your car from the factory was tuned to run as it's "supposed to" off of premium grade gasoline. Running a higher octane fuel in a car that's tuned for premium is kind of ridiculous unless it's not driven on the street. It reminds me of those kids that fill their 1990 Civic Hatchbacks with premium (on a stock motor with an exhaust) because it's going to make their car "faster". There are a good many cases out there of "more expensive/higher numbers is not always better" and this is definitely one of them. A higher octane level will also not necessarily burn cleaner. As a matter of fact, IIRC leaded gasoline burns a lot "dirtier" than unleaded (this could be why they switched over, yes?) and that's why it's not street legal. The tree huggers don't like it...

Really, don't worry about what type of gas you're running. Let your engine breath easier (intake and exhaust system) and wait for more aftermarket mods to come out. Either that, or learn how to work on your car and start ripping it apart and fabbing up some "stuff". With all the computer systems on cars these days you can't really get all "grassroots" on it without a ton of work. I myself own a first gen and love it. It's carb'd and there's close to no computers. I do all of my work myself and I'm really thankful for that. I can't afford an RX-8 (someday, when they're a good bit older I will own one) but I have driven them and they are plenty quick in stock form. Feel happy that you have such a nice car and enjoy it while it lasts. Only crazies go out and buy a brand new car just to void it's warranty.

BTW, I came onto this forum because I'm really interested in the performance aspect of Mazda's newest rotary engined car. However, I have noticed that a lot of people on here are asking about what mods to perform after they got the most "important" aspects (visual???) of their project out of the way. I guess I'm trying to say... if anyone who has actually done their own work on their car (maybe some of those aforementioned "crazies"?) or even if you've taken it into a shop and had perhaps a turbo system or something of that sort installed, please PM me as I'm really interested in hearing the outcome.

Hi everyone!
Alexander Hipple

 

You need to get your car tuned. Its pretty understandable if you are running a 50 shot with no adjustment to your fueling... that you are detonating.

I think the 110 is just a bandaid to the real problem.

-hS

 

sorry to bring this thread back up but incase anyone is still wondering...

you need colder plugs to run higher octane. im running 116 oxygenated in my 16.5:1 mustang. with ngk plugs. the only reason to run a higher octane or premium with a booster is if its n/a and ported. most likely p port. im building a p port while im in korea. its gonna be a renesis with high comp rotors, p ports and a long tube header. and it will be efi with a standalone.

oh yeah... 110 is like 7 bucks a gal. my 116 is... cough cough.. 90+ for 5 gal depending on what livernois decides to sell it to me for.


planning on puting this ren in a 1st gen rx7. as it is the lightest and most retro for my liking