my new setup!

[TSiBER RYDER]

just installed some Cosworth M2's 780's and a walbro in my car last night. made some nasty power for 93 oct. still needs some fine tuning hopefully i'll hit 350 whp tonight.
got 338 whp and 371 tq on a mustang dyno. cant wait to get this sucker on the track! gotta beat my 12.38 @ 111 next month: FP Green, Spearco FMIC, water injection.
here's the links.
http://i73.photobucket.com/albums/i2...dynosheet2.jpg
http://i73.photobucket.com/albums/i2...dynosheet1.jpg

[BAMBAM]

Man I wish we got 93 here. Nice numbers

[Wicked E]

Our 91 gas is comparative to and acts like 93...

[BAMBAM]

huh?????????? I want to hear how that is? Please inlighten me on this subject. I come from the cali side of the world.

[Wicked E]

Calm down grass-hopper...

Less Air up here equals more fuel...

Ever notice we have 85 Octane here and you don't see that in places with lower elevation?

[BAMBAM]

Have you been some place with 93? because that is a huge jump. There use to be places that sold the 93 here in and that was awesome. I Just trying to understand what you are trying to say?

[Wicked E]

In the Rocky Mountain (high altitude) states, 85 octane is the minimum octane and 91 is the maximum octane available in fuel. The reason for this is that in higher-altitude areas, a typical combustion engine draws in less air per cycle due to the reduced density of the atmosphere. This directly translates to reduced absolute compression in the cylinder, therefore deterring knock. It is safe to fill up a car with a carburetor that normally takes 87 AKI fuel at sea level with 85 AKI fuel in the mountains, but at sea level the fuel may cause damage to the engine. In some east coast states, up to 94 AKI is available [5]. In British Columbia, 94 octane is readily accesable. In parts of the Midwest (primarily Minnesota, Illinois and Missouri) ethanol based E-85 fuel with 105 AKI is available [6].

sourced: Octane rating - Wikipedia, the free encyclopedia

[BAMBAM]

I know all of that You said our 91 is just like 93 oct. I do not see that?

[Wicked E]

Oh boy...

91 up here acts like 93's knock suppression at this elevation... I'm not sure how to explain it any further...

Try running your timing map you have here with nothing changed in San Diego and see if you get away with no knock like you do here...

When I had my Lightning, my tune was set for Arizona's climate, 91 octane and elevation. I drove it out here and the thing was sluggish. Come to find out, I could add more timing to it due to 91's octane having better knock resistance at this elevation.

I'm getting off the speaking podium... Maybe I could explain in better in person?

[BAMBAM]

Ok I c what you are saying now. My bad. I thought you meant something else.