fuel requirements

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fuel requirements

Post  GIJoe on July 19th 2012, 7:46 pm

I just finished an A460 build...now 598. A460 heads and intake. Also A 460 block. Cam spec is 279-292 duration @.050 L/S is 112 lift is .852/.814
I'm an old mod motor guy for the last 15 years so I have lots to learn here but I'd like to know what you all think will be the minimum octane for this setup. I have some ideas but will share after I hear other input. If you need more info let me know. The C/R is suppose to be 12.5:1 but I believe it actually turned out more like 12:1. Made 968 on the engine dyno at 30 degrees
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Re: fuel requirements

Post  Barney on July 19th 2012, 8:25 pm

If its truly 12/1 you can get by on 110[i]
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Re: fuel requirements

Post  Lem Evans on July 19th 2012, 8:37 pm

VP113 may be the bang for the buck.

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Re: fuel requirements

Post  bruno on July 19th 2012, 9:35 pm

GI welcome to the site , what part of alabama are you from ?
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Re: fuel requirements

Post  GIJoe on July 19th 2012, 9:45 pm

bruno wrote:GI welcome to the site , what part of alabama are you from ?
uummm about twice as far from the Montgomery track as you...LOL Prattville
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Re: fuel requirements

Post  dirt_worker on July 19th 2012, 10:33 pm

flattop piston?
whats the cranking compression?
I just dynoed my 11.7 comp A460 headed 557 and it made 906 on 91 octane pumpgas..



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Re: fuel requirements

Post  GIJoe on July 19th 2012, 10:58 pm

I'll find out and let you know tomorrow. I dont remember..
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Re: fuel requirements

Post  bruno on July 20th 2012, 12:52 pm

GIJoe wrote:
bruno wrote:GI welcome to the site , what part of alabama are you from ?
uummm about twice as far from the Montgomery track as you...LOL Prattville

just wondering if your the guy i spoke to several months ago in my store ?
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