LT1-LT4 Modifications 1993-97 Gen II Small Block V8

gas? lt1

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Old 09-15-2006, 11:57 PM
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Default gas? lt1

can i run regular/mid grade in an lt1?
Old 09-16-2006, 12:08 AM
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no. the compression ratio is too high. just run premium.. its only like a couple bucks more per tank.
Old 09-16-2006, 02:19 PM
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It needs premium.

Also, Carlos Mencia does not suck.
Old 09-16-2006, 03:12 PM
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premium **** only.
Old 09-17-2006, 12:36 AM
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why would you want to run anything lesser grade? its only like 20-30 cents more per gallon.. im sure you have a couple dimes laying around for that.
Old 09-17-2006, 12:43 AM
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Originally Posted by coldkillinTA
why would you want to run anything lesser grade? its only like 20-30 cents more per gallon.. im sure you have a couple dimes laying around for that.
because im thinking of picking up an lt1 for dirt money with low miles on it for my second car... and quite frankley i dont give a **** about keeping performace with it
Old 09-17-2006, 01:03 AM
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should be able to run midgrade. might want to get a tune.. FYI stock tune for B-body LT1s were 87 octane. Then again we have around 10:1 compression, compared to your guys what? 10.3-10.5:1?
Old 09-17-2006, 01:56 AM
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premium...youll get better mileage toooo....!!!!!!
Old 09-17-2006, 03:24 AM
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ive ran 87 with a tune and it ran fine didnt pull timing either
Old 09-17-2006, 04:15 AM
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buffman...f-bodies were 10.5...impala were 11
Old 09-17-2006, 07:33 AM
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I put in 87 once, car ran like crap.

PS

Carlos Mencia does not suck but his CC show is unwatchable.
Old 09-17-2006, 08:45 AM
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Originally Posted by daniel6718
buffman...f-bodies were 10.5...impala were 11


The f-body was 10.4 the b-body was 10.0 but with iron heads and everyone knows aluminum allows higher compression.
For a retrofit application you will likely need reprogramming anyway so reprogram it for 87 octane and you will be fine.

If a heavy pig of a b-body is OK lugging the motor with 2.56s(wagons) and iron heads at 10:1 the aluminum head engine in a lighter car would be no problem whatsoever to make run on 87 octane.
Old 09-17-2006, 09:19 AM
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Is saving $1 every time you fill up really worth the added headaches? Dont be a baby and just use what it needs. You gotta pay to play.
Old 09-17-2006, 10:01 AM
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If this is a second car you're buying for good gas milage, you're buying the wrong car. You could try lower octane gas but watch for pinging when everything's hot. High octane like it says on the gas door is what you should be using.
Old 09-17-2006, 01:32 PM
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run 87, i promise you will have no problems, most people on here dont even know anything about octane ratings...
Old 09-17-2006, 02:53 PM
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Originally Posted by Formula96
run 87, i promise you will have no problems, most people on here dont even know anything about octane ratings...
You're an idiot. The car WILL ping badly under load with 87 octane in the car.
Old 09-17-2006, 03:47 PM
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Originally Posted by Freaklt1
You're an idiot. The car WILL ping badly under load with 87 octane in the car.
mine dont.
Old 09-17-2006, 03:52 PM
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Originally Posted by 00transamnh
because im thinking of picking up an lt1 for dirt money with low miles on it for my second car... and quite frankley i dont give a **** about keeping performace with it
o your one of those ls1 ********* with all due respect(ricky bobby) go f*** yourself
Old 09-17-2006, 03:59 PM
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I run Premium, Cam and real agressive Race Tune. Mine won't run on 87. It still gets 18 city/23 highway, and that's a point rich also..
Old 09-17-2006, 05:45 PM
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Originally Posted by Paul Bell
If this is a second car you're buying for good gas milage, you're buying the wrong car. You could try lower octane gas but watch for pinging when everything's hot. High octane like it says on the gas door is what you should be using.
im not buying it for good gas mileage, but if i can save 5 bucks on a fill up with no effect then whythe hell not


AND YES! I AM ONE OF THOSE LS1 DICKEADS


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