What grade of fuel? - Team Camaro Tech
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post #1 of 42 (permalink) Old Jul 21st, 15, 04:43 PM Thread Starter
Kyle
 
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What grade of fuel?

Probably a dumb question, but hey, I am still new at all of this...

What octane should I REALLY be using for my 69 with a 454 BB? Not what I can get away with, but what will have her running pretty and staying healthy? Thanks for the feedback.

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post #2 of 42 (permalink) Old Jul 21st, 15, 04:47 PM Thread Starter
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Re: Whaat grade of fuel?

And speaking of my engine... how do I know what liter she is... all the details of her? Yes, I refer to everything on my Camaro as she. My woman hates it, but that car is my sexy, big assed girl. And its a lot cheaper to drive and fix up than for me to step out and pay the doctor bills from my woman stabbing me in my sleep!

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post #3 of 42 (permalink) Old Jul 21st, 15, 05:13 PM
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Re: Whaat grade of fuel?

what does it matter how many liters it is? Its 454 cubic inches which is the proper measurement for a early Camaro. Find out how many cubic inches in a liter. There's formulas for it.

As far as what octane to run, depends on the cam, combustion chamber size, dynamic cranking pressure the combination of pistons/cam/heads, material heads are made of, how much timing you are running and when it comes in, etc. You need to find out what engine you have. Its not original to the car so you need to locate the part number of the block and you need to pull a valve cover to look at the head and get the part number of it. You'll need those two things before you can start finding out anything about the engine.
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post #4 of 42 (permalink) Old Jul 21st, 15, 05:59 PM
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Re: Whaat grade of fuel?

Did you purchase the Camaro with the 454 engine already in it? If you had the engine built or installed ask the builder or installer. We definitely need to know the static compression ratio to make any kind of recommendation for fuel. I would run the highest octane you can get from the pumps until you find out some information. When cruising around town and going up a hill slowly do you hear any pinging noise or like the valves rattling?
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post #5 of 42 (permalink) Old Jul 21st, 15, 06:00 PM
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Re: Whaat grade of fuel?

I run VP Racing that is sold here at the pump for my 69 Z/28, I can run pump but why do that?

VP is 110 Octane

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post #6 of 42 (permalink) Old Jul 21st, 15, 06:28 PM
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Re: What grade of fuel?

Quote:
Originally Posted by onefiness View Post
what does it matter how many liters it is? Its 454 cubic inches which is the proper measurement for a early Camaro. Find out how many cubic inches in a liter. There's formulas for it.
61.02 cubic inches to a liter, but who cares, we're not in some foreign country, even though sometimes it might feel like it. The two biggies are compression and cam specs and timing, but I think that adds up to three. So sue me.

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post #7 of 42 (permalink) Old Jul 21st, 15, 07:24 PM
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Re: Whaat grade of fuel?

Quote:
Originally Posted by camarodude67 View Post
I run VP Racing that is sold here at the pump for my 69 Z/28, I can run pump but why do that?

VP is 110 Octane

Wow. Running more octane than what your engine needs does nothing but waste money. Must be nice to have money to burn.
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post #8 of 42 (permalink) Old Jul 21st, 15, 07:40 PM
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Re: Whaat grade of fuel?

Quote:
Originally Posted by onefiness View Post
Wow. Running more octane than what your engine needs does nothing but waste money. Must be nice to have money to burn.
That was my thought as well, with the price of fuel I run what my engines need, any higher octane than what they need is just wasted $'s that can go towards something else, or more fuel

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post #9 of 42 (permalink) Old Jul 21st, 15, 07:47 PM
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Re: Whaat grade of fuel?

Quote:
Originally Posted by camarodude67 View Post
I run VP Racing that is sold here at the pump for my 69 Z/28, I can run pump but why do that?

VP is 110 Octane

Who in our neighborhood has this on a pump? I've been running the PB CAM2 stuff on pump on the Berlin Turnpike but its 10 bucks a gal. Think its 100.


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post #10 of 42 (permalink) Old Jul 21st, 15, 08:05 PM
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Re: Whaat grade of fuel?

I am interested in this. I have a stock L48 SS 350... heads have never been off. The specs are 10.25 compression. I have been using 102 octane pump gas from 76 with a lead additive.
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post #11 of 42 (permalink) Old Jul 21st, 15, 08:30 PM
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Re: Whaat grade of fuel?

Quote:
Originally Posted by 1st Generation RS/SS View Post
I am interested in this. I have a stock L48 SS 350... heads have never been off. The specs are 10.25 compression. I have been using 102 octane pump gas from 76 with a lead additive.
Unless you have a HUGE amount of carbon build up, or are running radically advanced timing, you don't need the high dollar gas in an L48. Should run fine on 91 or 92 octane.

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post #12 of 42 (permalink) Old Jul 21st, 15, 08:30 PM
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Re: Whaat grade of fuel?

It is on Berlin Turnpike it is pure VP racing fuel 110 Octane, 69 Z/28 with a raped 302 is not a waste of money, I don't drive the to work everyday..Common Guys.
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post #13 of 42 (permalink) Old Jul 21st, 15, 08:31 PM
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Re: Whaat grade of fuel?

Same place I get CAM 2 near rt 9?


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post #14 of 42 (permalink) Old Jul 22nd, 15, 11:06 AM
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Re: Whaat grade of fuel?

Quote:
Originally Posted by kbrandont View Post
Probably a dumb question, but hey, I am still new at all of this...

What octane should I REALLY be using for my 69 with a 454 BB? Not what I can get away with, but what will have her running pretty and staying healthy? Thanks for the feedback.
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post #15 of 42 (permalink) Old Jul 22nd, 15, 11:18 AM
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Re: Whaat grade of fuel?

Quote:
Originally Posted by 1st Generation RS/SS View Post
I am interested in this. I have a stock L48 SS 350... heads have never been off. The specs are 10.25 compression. I have been using 102 octane pump gas from 76 with a lead additive.
The valves and seats in that engine will be so coated you don't need the lead additive even without hardened seats. As already said your 350 will run fine on high test (91 in Calif) and probably even mid grade (89).

The key to performance is not to run the highest octane you can find, it's to run the lowest octane your engine will run without knocking and pinging under load, part and full throttle... Higher octane burns slower and is harder to ignite.

...Dennis

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