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06-02-2009, 09:05 PM
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#1 |
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Registered User
Join Date: Mar 2005
Location: usa
Posts: 142
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555 bbc
i got my 555 with 13to1 pistons ready i am running c16 at the track just wondering if i can run 93 octane with booster on the street if i back the timing off thanks
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06-03-2009, 01:44 AM
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#2 |
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Big Boys With Big Toys
Join Date: Nov 2008
Location: Seneca Illinois
Posts: 142
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Re: 555 bbc
I'd say no
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06-03-2009, 08:10 AM
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#3 |
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Registered User
Join Date: Feb 2001
Location: Wetumpka, Al, U.S.
Posts: 8,891
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Re: 555 bbc
a 13 to 1 piston doesn't mean you have 13 to 1 compression. Do you know deck height, head gasket, bore, stroke, head cc, dome cc, and so forth. If I was gonna drive it on the street I would run Av gas with 1 ounce of marvel mystery oil per gallon.
__________________
Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole! |
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06-03-2009, 09:37 PM
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#4 | |
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The Engine Whisperer
Join Date: Sep 2006
Location: Ohio
Posts: 770
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Re: 555 bbc
Quote:
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06-03-2009, 10:30 PM
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#5 |
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Registered User
Join Date: Mar 2005
Location: usa
Posts: 142
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Re: 555 bbc
i dont know i am thinking that av fuel bruns dry and the oil will gave you some lube
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06-03-2009, 10:31 PM
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#6 |
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Junior Member
Join Date: Oct 2004
Location: Gatesville texas
Posts: 180
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Re: 555 bbc
Its a Mystery LOL
Sorry couldnt resist...
__________________
68 GMC 565 BBC Abruzzi super pro glide 9.85@135.00 
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06-04-2009, 07:36 AM
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#7 | |
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Registered User
Join Date: Feb 2001
Location: Wetumpka, Al, U.S.
Posts: 8,891
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Re: 555 bbc
Quote:
Exactly!
__________________
Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole! |
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06-04-2009, 08:00 AM
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#8 |
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Registered User
 
Join Date: Jul 2007
Location: Ottawa Ontario Canada
Posts: 1,156
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Re: 555 bbc
Octane Booster is no good. with 13:1 back off the timming and see. it will idle and at light loads you MIGHT be OK but you're just looking for trouble. You could try water/meth injection or run good gas all the time.
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06-04-2009, 06:33 PM
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#9 |
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Registered User
Join Date: Nov 2008
Location: Ponder, Texas
Posts: 94
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Re: 555 bbc
No na NO NO NO
If you don't know true pressure it's a Big Gamble. 9:1 {pressure} is about it without some other factor IE: water |
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06-04-2009, 10:11 PM
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#10 |
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Registered User
Join Date: Feb 2001
Location: Wetumpka, Al, U.S.
Posts: 8,891
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Re: 555 bbc
A buddy of mine had a 13 to 1 440 in 70 duster back in the day and he ran av gas.
__________________
Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole! |
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06-07-2009, 12:28 AM
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#11 |
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driving is in my blood
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,691
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Re: 555 bbc
Theres 91 and 100 octane avgas. Don't use the wrong one.
__________________
-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me. |
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06-07-2009, 08:56 PM
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#12 |
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Registered User
Join Date: Mar 2005
Location: usa
Posts: 142
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Re: 555 bbc
i just pick up some 100 octane av i back the timing seems to run good just hve to play with jetting again
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06-23-2009, 05:21 PM
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#13 |
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Registered User
Join Date: Aug 2008
Location: Lantana, TX
Posts: 419
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Re: 555 bbc
Carb and size, fuel injection, computer, HEI, Aluminum heads or cast iron, etc. There are some details you left out. If you want a response based on a guess, I would say you can, but you will have to back the timing off so much it would run like crap.
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06-23-2009, 06:55 PM
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#14 |
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Registered User
Join Date: Feb 2009
Location: slurrey, bc.
Posts: 1,134
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Re: 555 bbc
do you have e85 where you live, be right at home in that motor.
__________________
-'73 c/10 - Low with Go - will be complete... probably never. -'90 2wd Blazer - well... soon enough anyways. -'84 SWB - the daily gas guzzler. |
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