C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

octane booster that really works please

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Old Aug 7, 2011 | 10:43 PM
  #21  
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Handy calculator for mixing fuel:


http://www.wallaceracing.com/octane-mix-calc.php
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Old Aug 7, 2011 | 10:44 PM
  #22  
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Do you have ultra high compression or something, is there a reason youre wanting very high octane?
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Old Aug 7, 2011 | 10:52 PM
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Originally Posted by 96 lt-4
Sounds like it would be beneficial to modify the engine as needed to run on pump gas.
Its in the process of being tuned. The AF ratio is a little high. I am getting a little spark knock. I want to run better gas etc until tuner resolves issues. You cant always here knock, and being a rock out in the middle of the ocean doesnt afford easy access to tuners etc. Takes time.
And the engine is modified, very modified, its the tune not the engine that needs a little refining.
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Old Aug 7, 2011 | 10:52 PM
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Originally Posted by cuisinartvette
Do you have ultra high compression or something, is there a reason youre wanting very high octane?
11.1 to 1 compression ratio, 396 cu in LT1. Its just in the process of being tuned. Thats all.
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Old Aug 7, 2011 | 11:00 PM
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Results will vary...........

Most of us running 9.0:1 to 12:1 static compression in our sbc powered C4's.

TORCO works nice 1 quart per 10 gallons of 93 octane.
Makes around 98 motor octane fuel from what I recall.

1 quart of Torco added to 5 gallons of 93 octane makes about 110 motor octane fuel.

1 quart of Torco added to 20 gallons of 93 octane pump gas makes 95 motor octane fuel.
The later I use in my 87 Vert.
Stops all pinging & WOT detonation.

Now if You have a SB-2 Headed small block chevy of 430 ci or more & have a static compression ratio of 18.0:1, Turn as high as 10,000RPM's, and pushing around 950 flywheel horsepower...

Fick No ...................the Torco will not work for You.

Go buy a 55 gallon drum of VP C16 Racing gas rated at 118 motor octane.
At around $15 per gallon or $825.00 you You true High Motor Octane Fuel.
Don't cut the CHIT with pump gas.
Run it straight.

Brian R.
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Old Aug 8, 2011 | 12:52 AM
  #26  
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I run a 60/40 mix of 93 pump/E85 in my Buick T Type and it works well.
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Old Aug 8, 2011 | 12:57 AM
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Originally Posted by ITSAV6
I run a 60/40 mix of 93 pump/E85 in my Buick T Type and it works well.
No E85 found for general use. Marine Corps Base has it though. Maybe it is at there Aloha gas station.
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Old Aug 8, 2011 | 02:38 AM
  #28  
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Originally Posted by ITSAV6
I run a 60/40 mix of 93 pump/E85 in my Buick T Type and it works well.
Are you tuned for that? How long have you been doing that?

Probably not SOP.
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Old Aug 8, 2011 | 08:04 AM
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Originally Posted by Charleston2012
11.1 to 1 compression ratio, 396 cu in LT1. Its just in the process of being tuned. Thats all.
mine is 11.6 to 1 and i am running pump 94 octane.
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Old Aug 8, 2011 | 09:37 AM
  #30  
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Originally Posted by GREGGPENN
Are you tuned for that? How long have you been doing that?

Probably not SOP.
I have herar about the Buick guys doing that for a number of years. mileage goes down but octane goes up.
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Old Aug 8, 2011 | 09:44 AM
  #31  
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Originally Posted by Charleston2012
Its in the process of being tuned. The AF ratio is a little high. I am getting a little spark knock. I want to run better gas etc until tuner resolves issues. You cant always here knock, and being a rock out in the middle of the ocean doesnt afford easy access to tuners etc. Takes time.
And the engine is modified, very modified, its the tune not the engine that needs a little refining.
If you can't wait until the motor is properly tuned, then go buy some 110 or higher and do some mixing. It is cheap insurance to protect your investment (Motor) until it is tuned. Pay now or later it your choice.
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Old Aug 8, 2011 | 12:30 PM
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Originally Posted by yedister
If you can't wait until the motor is properly tuned, then go buy some 110 or higher and do some mixing. It is cheap insurance to protect your investment (Motor) until it is tuned. Pay now or later it your choice.
Check
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Old Aug 8, 2011 | 05:12 PM
  #33  
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Originally Posted by GREGGPENN
Are you tuned for that? How long have you been doing that?

Probably not SOP.
SOP? Done it for 2 years or so. Tune it myself but it needs another chip for 100% E85 and larger than 55# inj. It does run 7.6 in the 1/8 on 93. My wifes Expedition runs it ok too using 87/E85
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Old Aug 8, 2011 | 05:24 PM
  #34  
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Originally Posted by JackDidley
I burn E85. 104 octane.
Be careful with this. Even cars that are supposed to run E85 are supposed to have a tank of regular gas every 3 fills. They provide ZERO lubrication to seals. Drop a gasket in rubbing alcohol once a day for an hour and see how long it takes to be completely dry. You'll do some serious damage with E85.


Anyways....


Octane booster?
Get better fuel. Most of that stuff is just injector cleaner with a fancy label.
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Old Aug 8, 2011 | 06:13 PM
  #35  
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Originally Posted by 96 lt-4
Sounds like it would be beneficial to modify the engine as needed to run on pump gas.
I have used "Octane Supreme 130" in my BBC boat engine. I consider it "for emergency use only". You might check it out. Other than that, the race track has various flavors in the pump.
Race gas can be shipped by the drum. If you don't have it in Hawaii, you can get it. Just a matter of how bad you want it. $$$$
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Old Aug 8, 2011 | 06:34 PM
  #36  
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Originally Posted by ITSAV6
SOP? Done it for 2 years or so. Tune it myself but it needs another chip for 100% E85 and larger than 55# inj. It does run 7.6 in the 1/8 on 93. My wifes Expedition runs it ok too using 87/E85
Yeah,,,if you run that mix often, a custom tune would be in preferable. Sounds like you would know stoimetric point would change because of it.
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Old Aug 9, 2011 | 02:17 AM
  #37  
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Local Store sells VP unleaded...29 dollars a gallon..
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Old Aug 9, 2011 | 09:55 AM
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Originally Posted by navy_vette
Be careful with this. Even cars that are supposed to run E85 are supposed to have a tank of regular gas every 3 fills. They provide ZERO lubrication to seals. Drop a gasket in rubbing alcohol once a day for an hour and see how long it takes to be completely dry. You'll do some serious damage with E85.

I left a piece of cheap old non FI fuel hose in a bowl of E85 for several months. No changes in the condition of the hose. Finally threw it out. Been about 13000 mile since the switch. So far, so good.
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Old Aug 9, 2011 | 11:25 AM
  #39  
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If ya'll find a way to go fast and is cheep let us all in on it,, after 40 years fast will cost big money..No bottle of anything going to make much power.. Can't go to high on OCT. motor has to be built for it will go boom , hole in piston something...
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