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Thread: compression and fuel
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03-08-2013, 10:07 PM #1
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compression and fuel
I'm wanting to run 12.5:1 compression in my 383 maro. Goals are mid 10 second 1/4 miles. What grade/style of fuel should I be looking at to make this work. Many people say E85 and others say vp1xx any help out here would be much appreciated.
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03-08-2013, 10:22 PM #2
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93 super.
John
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03-08-2013, 10:26 PM #3
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What is your cam specs? knowing what cam your running can give us the dynamic compression.
May i ask why such a high static comp? 10.5 1/4 is more then capable with a lower comp.94 Trans am. Built 383/T56(437/409) Wilwoods, tubular suspension, QA1/BMR, Watts Link. Stripped down and set to kill!
Twin Tubo build underway. !GOING AFTER LTX STANDING MILE RECORD!
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03-08-2013, 10:39 PM #4
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Well honestly I'm being pessimistic on e.t I usually act like that so not to truly dissapoint myself lol (I'm odd).
As for cam I cannot remember the specs off my head
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03-08-2013, 10:56 PM #5
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if you have access to 93 unleaded it might be all you need...I ran 12.2:1 on a 246/254 .613/.590 112lsa in my 396 for several years
1994 Formula, 396cid, AFR 227's, Single plane, and 2 of the big ones.
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03-08-2013, 11:00 PM #6
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Is 93 unleaded that uncommon for you guys? It's at every gas station I've ever seen here in TX o.O
96 Trans Am WS6 LT1 M6: 10/7/11 - current: 245.7 RWHP / 266.2 RWTQ - 14.462s @ 98.28 MPH
94 Corvette LT1 A4: 4/12/13 - current: No dyno #s yet - 9.547s @ 75.11 MPH (1/8 mile)
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03-08-2013, 11:05 PM #7
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its fairly uncommon here...i think the highest i have here is 91 unfortunately. I dont even see any E85, its very saddening to see.
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03-08-2013, 11:13 PM #8
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Wow...we have 93 and 94...like everywere.
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03-08-2013, 11:14 PM #9
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on 91 you could probably drop to 12:1 or so and not have any issues and still run the numbers you are looking for...but many other factors go into ET than just CR and fuel choice
1994 Formula, 396cid, AFR 227's, Single plane, and 2 of the big ones.
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03-08-2013, 11:15 PM #10
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Yea unfortunately Im in south dakota and we dont have the awesome fuel you guys do. We still carry #1 diesel though which is a rarity lol.
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