Fellow UNIChippers,

Will it be ok to run 110 Octane Race Gas with the "B" Map on my UNIChip or is that to high of an Octane number?

Jason

 

Are you sure the 110 is not leaded? Be sure! 100 is the only "street legal" unleaded race fuel I know of.

 

Thanks,

I will check on that.

Jason

 

I'm having a problem finding any 100+ octane UNLEADED fuel anywhere in town. Is all high octane fuel LEADED fuel? Does anyone know of a place I can find 100+ octane fuel in Oregon?

Jason

 

What are you possibly trying to accomplish by running 100+ octane?

 

Kyle,

With the UNIChip there are two maps programmed into the module, A & B map. On the UNIChip the is a toggle switch for selecting one or the other map.

The "A" map is for premium grade fuel (91-93 octane) while the "B" map has seperate mapping for 100+ octane fuel. The "B" map has different fuel to air ratios, boost, and timing parameters for the higher grade fuel. In layman's terms, which is what I feel comfortable using, it will give more lb/ft's of torque and more bhp at the 3000-5000 rpm level than the standard "A" map.

With my car custom, dyno tuned UNIChip by Dastek North America in Beaverton, Oregon, the makers of the UNIChip software, we were able to achieve 220.4 bhp using the "A" map. I would like to feel how the car behaves on the "B" map with 100+ octane fuel! Tony, the tuner at Dastek in Beaverton, is from South Africa and did an amazing job with my car. He used to work for one of the premier racing teams in the world (Ferrari I think ) and helped his car and driver to win the 24 hours at Daytona hands down. The guy knows his stuff, and that is an understatement. It took three hours but when he was finished, oh yeah, what a ride!

Both Randy Webb and Tony said I had a very strong, well built motor in my car and that is why they were able to pull 220 bhp from only an Alta CAI, Scorpion exhaust, Atla 15% pulley and the UNIChip ECU unit. For Sh*t's & Giggles is about the only reason I want to try a tank of 100+ octane fuel, but I really want to see what little TINTIN can do.

Sorry for the long explaination but I wanted to answer the question thoroughly.

Jason

 

Thanks for the explanation... but I'm not buying it.

You say that the air/fuel ratios and boost are changed with the "B" map. Care to explain to me how a supercharger being driven by a belt is going to produce more boost simply by changing some 1s and 0s? Your boost will go unchanged.

Keeping this in mind, you're not going to be getting any more air into the engine. Changing the a/f ratios would only be achieved by increasing the amount of fuel you're putting into the cylinder, since the amount of air being pulled through your intake isn't controlled by a computer chip either.

I really don't see the 100+ octane doing anything if the engine is running OK on the 93 octane and the engine isn't having to control detonation anywhere. The reason a lot of turbocharged cars will run different software for 93 and 100 octane is they can control the amount of boost nearly instantly whereas with a supercharger you've got to swap out mechanical parts.

Sorry if I'm coming off as a jerk here, I don't mean to!

 

Someone is blowing smoke up somebody's place where the sun don't shine.......

 

It's the timing. (In laymen's terms like the original poster) Higher octane gas is harder to burn, so it doesn't "self-ignite" as easily, and the ECU can advance the ignition timing farther before the engine starts to ping.

If this makes a difference in performance, I can't say.