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09-10-2011, 06:55 PM
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CC Member
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Join Date: Jun 2006
Cobra Make, Engine:
Posts: 58
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Not Ranked
octane boost
what is the best octane boost that we can still buy now that the EPA pulled all the good stuff off the shelves
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Advertising
09-10-2011, 10:42 PM
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CC Member
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Join Date: Jan 2008
Location: Nashville,
TN
Cobra Make, Engine: Backdraft, SBF 351w (463 CI)
Posts: 272
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Not Ranked
My vote is for Lucas.
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09-10-2011, 11:00 PM
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CC Member
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Join Date: Nov 2000
Location: Flower Mound, TX,
tx
Cobra Make, Engine: Lonestar LS 427, Keith Craft 501,Toploader
Posts: 883
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Not Ranked
I like Lucas too...
__________________
" It ain't no big deal" 
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09-11-2011, 06:23 AM
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CC Member
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Join Date: Jul 2009
Location: Westerly,
RI
Cobra Make, Engine: Fordstroker 408w custom solid roller-Craft ported Brodix 17*heads-CFM ported Vic Jr. intake-1 3/4 primaries- 575hp-TKO-600RR Liberty upgrade- -Moser 8.8 trutrac-McLeod Street Extreme--QA-1-Wilwood brakes, Classic Chambered 3" Cobrapacks, Avon's
Posts: 645
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Not Ranked
NOS Race formula, the price has crept up a little off the shelf. Lucas is my second choice.
__________________
Lou
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09-11-2011, 06:34 AM
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CC Member
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Join Date: Jul 2005
Location: Virginia Beach, Va & Port Charlotte, Fl.,
Posts: 2,284
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Not Ranked
sorry, IMO... octane boost = snake oil.
I rememeber several years ago they did a test on the popular octane boosters. the best ones made a difference of a couple points, that's a 0.1 or 0.2 octane increase, not a 1 or 2.
__________________
Too many toys?? never!
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09-11-2011, 07:16 AM
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CC Member
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Join Date: Jul 2009
Location: Westerly,
RI
Cobra Make, Engine: Fordstroker 408w custom solid roller-Craft ported Brodix 17*heads-CFM ported Vic Jr. intake-1 3/4 primaries- 575hp-TKO-600RR Liberty upgrade- -Moser 8.8 trutrac-McLeod Street Extreme--QA-1-Wilwood brakes, Classic Chambered 3" Cobrapacks, Avon's
Posts: 645
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Not Ranked
Read up on NOS Race formula, its points not fractions, but it costs$$ also. I know its not the complete answer to everything but test prove it helps, plus it lubricates the valves and seats. It is NOT a replacement for leaded race for sure, it Helps,and it smells good out the exhaust 
here is one link
Octane Boosters Testing - Tech Review - European Car Magazine
__________________
Lou
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09-11-2011, 07:21 AM
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CC Member
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Join Date: Mar 2001
Location: Cinnaminson,
NJ
Cobra Make, Engine: Cobra Fibercraft Bodies 427 S/C, 351W disguised as a 427.
Posts: 391
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Not Ranked
Although Lucas Octane Boost seems to be the common choice, ask yourself if booster is really necessary. You say nothing about your compression ratio in the motor. Octane boost isn't going to give any power increase that you will ever recognize and, if not really needed, will only serve to lighten your wallet. If you never have any evidence of detonation (pinging) which you shouldn't in such a light car, you really don't need octane boost. Standard 93Octane Premium should work well with any compression ratio up to close to 11-1 in such a light car unless you are in the habit of flooring it in 4th gear while climbing a hill. LOL My 351W in my roadster has 10.75/1 ratio and I have used 91 octane fuel for 8 years and never once heard a ping even with distributor initial advance running at 12 degrees. Unless you really need the booster, save your money.
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Political correctness is a doctrine, fostered by a delusional, illogical minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."
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09-11-2011, 08:40 AM
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Senior Club Cobra Member
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Join Date: Jul 2000
Location: Las Vegas,
NV
Cobra Make, Engine: ERA 427 SO
Posts: 1,126
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Not Ranked
And if you do have pinging or detonation, use Xylene...117 octane
Homebrew Octane Boosters
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Ken
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09-11-2011, 10:23 AM
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CC Member
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Join Date: Aug 2007
Location: NE Oklahoma,
OK
Cobra Make, Engine: Fords
Posts: 544
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Not Ranked
Quote:
Originally Posted by mr0077
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just take care in mixing these formulas. Use the best respirator you can buy. The fumes are highly toxic carcinogens. Protect your skin as well as these solvents are equally toxic when absorbed thru the skin.
I've had good results with the race formula NOS octane booster. It does however leave a nasty reddish-orange residue in the carb.
Z.
__________________
'65 K code Mustang
'66 Galaxie 500
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09-12-2011, 06:51 AM
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CC Member
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Join Date: Feb 2006
Cobra Make, Engine: Hurricane HM1073 Keith Craft Genesis 427FE/482 CI
Posts: 390
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Not Ranked
Klotz here. And it smells pretty good coming out of the pipes....
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09-19-2011, 11:56 AM
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Stolen Avitar
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Join Date: Oct 2004
Location: Brunswick,
GA
Cobra Make, Engine: BDR 1311 428PI
Posts: 3,044
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Not Ranked
A gallon or so of 118 octane leaded race gas with each tank.  |
09-19-2011, 06:47 PM
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CC Member
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Join Date: Apr 2009
Location: Little Rock area,
AR
Cobra Make, Engine: ERA Street Roadster #782 with 459 cu in FE KC engine, toploader, 3.31
Posts: 4,519
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Not Ranked
Not cheap but Kemco is the premium stuff. Have to mail order it by the case. Has real old-fashioned lead in it so it's not technically legal for the road and would be instant death for cat. converters. Here is one source.
Octane Supreme 130, 12-32oz. |
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