What octane for 14:1cr

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What octane for 14:1cr

Post  tconnection on January 22nd 2013, 12:45 am

Which fuel or octane for 14:1cr?
Thanks

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Re: What octane for 14:1cr

Post  dfree383 on January 22nd 2013, 1:05 am

Here's some guidelines from VP, but alot depends on your application.

http://www.vpracingfuels.com/vp-drag-racing.html
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Re: What octane for 14:1cr

Post  2fox on January 22nd 2013, 2:03 am

VP C-16 117 octane .I would think? Subbing

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Re: What octane for 14:1cr

Post  bbf-falcon on January 22nd 2013, 5:54 am

112 always woeks good for me.

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Re: What octane for 14:1cr

Post  Bret Powell on January 22nd 2013, 9:59 am

Depends some on the form of racing and whether you have iron or aluminum heads. It is not quite as simple as compression.

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Re: What octane for 14:1cr

Post  rmcomprandy on January 22nd 2013, 10:57 am

Bret Powell wrote:Depends some on the form of racing and whether you have iron or aluminum heads. It is not quite as simple as compression.

Bret

X2 ... there are several fuel octanes which will work with that compression ratio. It is a matter of what YOU want from your fuel.

With 14/1 compression ratio...

C12 works well if it is not stale
C25 will make more power at almost twice the cost

I like "Late Model Plus" because it stores and travels well over long periods of time without changing.

Then there are the oxygenate fuels.
VP113 is probably the best bang for the buck but, again
Q16 will make more power at about twice the cost.

AND, then there are all the other brands of comparable quality.
I have one customer who swears by the "Powermist". Then Renegade and a bunch of other brands.

As said ... octane is NOT the only spec to look at.


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Re: What octane for 14:1cr

Post  tconnection on January 22nd 2013, 11:47 pm

Drag race only,aheaded 580ci. What you all run?
Thanks


Last edited by tconnection on January 23rd 2013, 12:36 am; edited 1 time in total

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Re: What octane for 14:1cr

Post  rmcomprandy on January 23rd 2013, 12:18 am

tconnection wrote:Drag race only,aheaded 580ci. What would run?
Thanks

How often you intend to buy fresh fuel will go a long way to determining what you run ... Personally, as said, I would use VP Late Model Plus.

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Re: What octane for 14:1cr

Post  tconnection on January 23rd 2013, 12:38 am

I ment to say, what you all run, but ok. Thanks for all the info.

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Re: What octane for 14:1cr

Post  2fox on January 23rd 2013, 1:08 am

Nitromethane?

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Re: What octane for 14:1cr

Post  dfree383 on January 23rd 2013, 4:09 am

Q16 is my choice fuel, but its expensive.
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Re: What octane for 14:1cr

Post  2fox on January 23rd 2013, 7:02 am

dfree383 wrote:Q16 is my choice fuel, but its expensive.
is that fuel.great for.nitrous too? Buddy?

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Re: What octane for 14:1cr

Post  dfree383 on January 23rd 2013, 7:12 am

2fox wrote:
dfree383 wrote:Q16 is my choice fuel, but its expensive.
is that fuel.great for.nitrous too? Buddy?

I haven't use it with it, Might get some answers from some of the NO2 guys here.
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Re: What octane for 14:1cr

Post  rmcomprandy on January 23rd 2013, 11:01 am

tconnection wrote:I ment to say, what you all run, but ok. Thanks for all the info.

I don't own a race car however, I buy fuel by the 55 gallon drum to be used on the dyno throughout the year and that drum lasts about 6 or 7 months.

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Re: What octane for 14:1cr

Post  rmcomprandy on January 23rd 2013, 11:07 am

tconnection wrote:Drag race only,aheaded 580ci. What you all run?
Thanks

Now your rules change to using nitrous so, to get a half way decent educated answer I think you should let it be known how you intend to use this gasoline, what you expect from it and the entire combination of what vehicle and engine it will be used in.

If you are after a specific answer, (instead of what will work), then you should ask the question specifically.

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Re: What octane for 14:1cr

Post  jbozzelle on January 23rd 2013, 11:30 am

Sunoco Supreme here. Mine and friends SBC deal all seemed to do OK on it. $9.50 - $10 bucks a gallon...

Just noticed there is a Shell race fuels dealer near where I work. Going to have to check out what they have.

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Re: What octane for 14:1cr

Post  richter69 on January 23rd 2013, 2:25 pm

2fox wrote:
dfree383 wrote:Q16 is my choice fuel, but its expensive.
is that fuel.great for.nitrous too? Buddy?


imo it works great if your running a jet restricted class, the t/u window is narrower, gotta be on your game if your spraying with it. Also if you have a very good combustion chamber you have to really pull a lot of timing out.
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Re: What octane for 14:1cr

Post  yellowhorse7 on January 23rd 2013, 11:12 pm

richter69 wrote:
2fox wrote:
dfree383 wrote:Q16 is my choice fuel, but its expensive.
is that fuel.great for.nitrous too? Buddy?


imo it works great if your running a jet restricted class, the t/u window is narrower, gotta be on your game if your spraying with it. Also if you have a very good combustion chamber you have to really pull a lot of timing out.

Narrower is an understatment. 3 SETS of HG's until I figured it out, lol. And my game was good!
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Re: What octane for 14:1cr

Post  tconnection on January 23rd 2013, 11:45 pm

No my rules remain the same, N/A. I don't like nos. To much like a bad woman. The vp late model plus sounds good.

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Re: What octane for 14:1cr

Post  2fox on January 24th 2013, 9:29 pm

dfree383 wrote:
2fox wrote:
dfree383 wrote:Q16 is my choice fuel, but its expensive.
is that fuel.great for.nitrous too? Buddy?

I haven't use it with it, Might get some answers from some of the NO2 guys here.
that's what I been running with nitrous. Cause I thought more octane was better.unless someone can. Give some ideas on what to run.but I got to many specs to list.

A lot of people.are going E 85 on llike 03/04 Cobras.they say it's better than C16 cause of the cooling effect?
I got a 2003 Cobra Vert.

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