What octane fuel to run?

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What octane fuel to run?

Post  whitefield on March 14th 2013, 10:50 pm

On a 13.5 :1 engine with cast Iron heads 466 cubic inch what octane fuel should be used ?
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Re: What octane fuel to run?

Post  FORDMUD on March 15th 2013, 9:23 am

I have an iron headed 528 at 13.7. I ran vp113 last season. It may have been fine but I'm going to Q16 this season.
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Re: What octane fuel to run?

Post  whitefield on March 15th 2013, 10:32 am

FORDMUD wrote:I have an iron headed 528 at 13.7. I ran vp113 last season. It may have been fine but I'm going to Q16 this season.

I wasn't for sure what to run as all of my other engines have been pump gas or no more than 11.5:1 motors . In those I always ran 93 110 or a mix of 93 and 110.

Thanks
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Re: What octane fuel to run?

Post  61coon on March 15th 2013, 10:37 am

Blake ran av gas in a iron headed 514 for 12 years. Should work fine for you.
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Re: What octane fuel to run?

Post  61coon on March 15th 2013, 10:39 am

Blake ran av gas in a iron headed 514 for 12 years. Should work fine for you.
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Re: What octane fuel to run?

Post  61coon on March 15th 2013, 10:43 am

Sorry about this double post.... Dang iPhone . Lol
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Re: What octane fuel to run?

Post  richter69 on March 15th 2013, 10:51 am

methanol for the win............
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Re: What octane fuel to run?

Post  61coon on March 15th 2013, 10:56 am

richter69 wrote:methanol for the win............

Thought you might say that. Lol
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Re: What octane fuel to run?

Post  whitefield on March 15th 2013, 11:18 am

Which one of these fuels would work the best? I am planning on buying a drum in the next month . Very Happy

http://www.vpracingfuels.com/vp-drag-racing.html
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Re: What octane fuel to run?

Post  richter69 on March 15th 2013, 11:19 am

use C12 or is you want a little more kick use the 113

if you can get it the Renegade 110+ is good stuff and a lot cheaper than VP. As soon as I burn all this VP NO2 I got I will switch over to the Renegade ............dang near 200 bucks cheaper per drum than VP


Last edited by richter69 on March 15th 2013, 11:21 am; edited 1 time in total
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Re: What octane fuel to run?

Post  whitefield on March 15th 2013, 11:20 am

61coon wrote:Sorry about this double post.... Dang iPhone . Lol


You guy's are to high tech for me ! Still running the distructable flip phone!
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Re: What octane fuel to run?

Post  69F100 on March 16th 2013, 11:47 pm

I ran the turbo blue 110 from the local Shell station at $7.35 gal before switching to alky
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Re: What octane fuel to run?

Post  richter69 on March 16th 2013, 11:52 pm

Dude i got an iphone 3g...........
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Re: What octane fuel to run?

Post  J.Toney on November 5th 2013, 1:19 pm

Corn fuel.....
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Re: What octane fuel to run?

Post  bronco911 on November 5th 2013, 8:47 pm

richter69 wrote:use C12 or is you want a little more kick use the 113

if you can get it the Renegade 110+ is good stuff and a lot cheaper than VP.  As soon as I burn all this VP NO2 I got I will switch over to the Renegade ............dang near 200 bucks cheaper per drum than VP
X2. The bang for the buck is the Renegade 110+
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Re: What octane fuel to run?

Post  IDT-572 on November 12th 2013, 4:04 pm

You need only run enough octane to keep the engine out of detonation. 110 should be enough for what your doing.

I have had several engines on the dyno that were 93 octane friendly and lost power with 110 or av gas. But 93 pump gas has more oxygen content.
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Re: What octane fuel to run?

Post  whitefield on July 7th 2016, 10:55 pm

I have the one engine back together and wound up going with 112 renegade . The engine seems to idle and throttle better on the 112 than it did on Sunoco 110. Cool
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Re: What octane fuel to run?

Post  IDT-572 on July 8th 2016, 9:00 am

I found that to be true also............. Wink
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Re: What octane fuel to run?

Post  whatbumper on July 8th 2016, 10:01 am

We sell a lot of what VP calls Roundtrack. It is basically all the fuel left in the hose when filling barrels that gets dumped into a large tank, blended, and guaranteed to be a minimum of 107 but most of the time they say it's well over that. It has all their fuels blended in it but we don't see any inconsistency in tuning.

I sell it for $425 a barrel or $8.50 per gallon to the local circle track boys.

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