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07graygt 09-03-2012 11:26 AM

93 octane in Denver?
Does anyone know where there is a station selling 93 octane. I'd like to run a 93 tune, but I haven't seen any stations that sell it.

Big OZz 09-03-2012 08:28 PM

Try these stations. You may wanna call n make sure they have it.

Station City Address Octane

AAI Speed Equipment Arvada 5985 Lamar 110, NOS (maybe)

Petro Stop Aurora 4301 South Parker Rd 93.5

The Kwik Korner Berthoud 437 N Hwy 287 93

Euro Sport Intl. Broomfield 510 Alter Street 108

Chief Petrolem Colorado Springs 301 South 10th St. Race Fuel

Farm Crest Colorado Springs 5050 Boardwalk Dr. 93

Philips 66 Denver Colfax & Josephine 101

TK Motorsports Denver 845 Wyandot St. VP Race Fuel Distributor

Vickery Motor Sports Denver 2231 S. Parker Rd. 108/114

Tech Center Sinclair Englewood 7699 E. Bellview Sunoco GT100

Redline Motorsports Fort Collins 1925 Timberline Rd. 104

Green Mtn Texaco Lakewood 12410 W. Alameda Prkwy 110 (leaded)

Goober's Inc. Littleton 9397 S Santa Fe Dr. Sunoco GT100

Bandimere Speedway Morrison S Rooney Rd. 100, 104, 110,116

Duggans Petroleum Sheridan 4495 S. Santa Fe Dr. 100, 105, 110, 114, 118
Big T High Performance Thornton 2577 E. 79th Ave VP Race Fuel Distributor

Amoco Wheatridge 32nd & Wadsworth 100

brent_G 09-05-2012 07:48 PM

you dont need 93 oct to run the 93 tune in this altitude.

07graygt 09-05-2012 07:59 PM

Really? How does that work? I was thinking about doing a 93 and using octane booster with 91.

brent_G 09-05-2012 08:03 PM

well ive been running 91 since i got the tune...Its just to help prevent against detonation...but being NA your chances are extremely slim. If you were forced induction id worry more about it. But its not that big of a difference. Just adds a little more aggressive timing. If you are that worried go for it. But I wouldn't.
If cars needed 93 here they would offer it. But they dont. At sea level its two points higher for each grade typically. 89 91 93. Ive even seen as high as 95 in michigan.

my buddy who had a fully build livernois stroker with a kenne bell mammoth and 700whp ran 91. So i think you'll be fine...

brent_G 09-05-2012 08:14 PM

The lower absolute pressure in the cylinder creates less heat when it's compressed, hence the lower octane rating works fine. Now, as with any car you can tune, the higher octane you can tune to, the better. I think most people use toluene for octane booster, though.

You can run a tank and listen for pinging...but I dont think you'll have have an issue. Basically higher octane has a greater ability to be compressed with out detonating before the spark which causes problems. In the altitude there is less compression due to the density of the air. If you were running 11:1 or boosted application id worry about it. But like i mentioned above if it give you peace of mind to run a booster go for it. But not this guy.

brent_G 09-05-2012 08:17 PM

If i make a trip to sea level ill make sure i have more octane before getting there. but that would be my only concern.

07graygt 09-05-2012 09:13 PM

So would going to the 93 tune make that much of a difference? My next time I have to get new tunes I will have them do 93.

brent_G 09-05-2012 09:19 PM

you wont notice alot. i noticed more midrange. but i datalogged and had a couple revised tunes that honed it in nice

miller89 09-06-2012 09:14 PM

I've never bought 93 octane but have been interested. How much does it run per gallon?

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