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Thread: octane booster/update got her fired!!! video on page 3

  1. 03-30-2008, 10:38 AM #46
    tecat-z's Avatar
    tecat-z
    tecat-z is offline Power User Roostin Away
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    The chances of it detonating at such low rpm's, with no load on it and no advance in the ignition yet, it very very low. If this was happening at 3/4 throttle, pinned and 90 out i'd say maybe detonation. I think i hear it a bit at very low rpm's. I've heard clutch baskets rattle at very low r's, from bushings, bearings, or even from the rivets that hold it together become worn and allow the basket to float a bit on the gear. Ant this is always most detectable at very low rpm when the engine is most out of balance, and running sort of erratic. But there are many things that can make mechanical noise, and without being there or hearing it first hand we can only speculate from experience. But i'd rule out fuel being the cause at those low rpm's.
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  2. 03-30-2008, 10:46 AM #47
    Bryan Raffa's Avatar
    Bryan Raffa
    Bryan Raffa is offline Loves Corn. Catch me if you can
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    I agree ed..rule out the compression and go from there
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  3. 03-30-2008, 12:37 PM #48
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    steven 250sx
    steven 250sx is offline Just Too Addicted Arm chair racerJust too addicted
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    sorry to hijack but are the sprock heads really complicated i would like to purchase one but don't know anything about them and i did try searching info on it. PM me plz with info so i don't add more to the thread

    thxs steven

    p.s. sorry evand
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  4. 03-30-2008, 10:10 PM #49
    evand
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    well i talked to mosh, and we kinda came to the conclusion (sp? lol) that its just typical z noise, When i get my front tire in this week ill take her out for a blast and see if i can hear any spark knock....


    i have a CR tester like the link you posted raffa, but it dosnt have the nice changable end and the fitting on the end is to small i think i may buy that one you posted


    thanks guys
    Evan

    O and no worry man, the sprock heads look to be very simple, and VERY nicely built. talk to mosh and raffa for more details since i just got this head/motor from mosh.
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  5. 03-30-2008, 10:21 PM #50
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    OldSchoolin86
    OldSchoolin86 is offline Within Arms Reach Of The Master Arm chair racerLord of the trike
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    Evan, sounds like a Z to me. Is the idle set too low? Almost sounds like it was just starting to lug over too slow before you hit the throttle again. Get a higher octane mix ready and enjoy. Do you have any airports near you? The small town airports are good for getting 100 octane fuel from.
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  6. 03-30-2008, 10:29 PM #51
    evand
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    yeah it started to die out on me a bit in the vid, it was still kinda cold, once warm she pures like a kitten

    Thats exactly what i plan on oldschool, get her out and about, take her to local riding spot with about half a tank of pump gas and a few gallons of good stuff and see if it knocks, if no then all is well and im just dumb and paraniod, if she knocks, dump a few gallons of 100 in there and call it a day.
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  7. 03-31-2008, 12:22 AM #52
    McDerry
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    10% mix of Rubbing alcohol with 92 octane puts you at 94.5 octane


    If your gonna mix fuels, you might aswell do it cheaper.

    Common stuff int he painting section of your local hardware store is the common ingredients in octane boosters but it more concentrated forms. The more common of which is acetone which in pure form (the $3 1 gallon jug at homecheapo) is 150 octane.

    The most common setup you see in the 12 once bottles is toulene with some mineral spirits as a cleaning agent and some atf to lubricate and prevent corrosion.


    Mind you most octane ratings at the pumps are the average of the research octane (RON) and the motor octane (MON) hence the R+M/2 equation on the pumps


    If your not to environmentally friendly the good old lead additive for non highway engines will boost the octane quite well. 85 octane becomes 100 octane.


    FORMULA 1
    Toulene
    R+M/2...114
    Cost...$2.50/gal
    Mixtures with 92 Octane Premium
    10%...94.2 Octane
    20%...96.4 Octane
    30%...98.6 Octane
    Notes: Common ingredient in Octane Boosters in a can. 12-16 ounces will only raise octane 2-3 *points*, I.e. from 92 to 92.3. Often costs $3-5 for 12-16 ounces, when it can be purchased for less than $3/gal at chemical supply houses or paint stores.

    FORMULA 2
    Xylene
    R+M/2...117
    Cost...$2.75/gal
    Mixtures with 92 Octane Premium
    10%...94.5 Octane
    20%...97.0 Octane
    30%...99.5 Octane
    Notes: Similar to Toulene. 12-16 ounces will only raise octane 2-3 *points*, I.e. from 92 to 92.3. Usually mixed with Toulene and advertised as *race formula*.

    FORMULA 3
    Methyl-tertiary-butyl-ether (MTBE)
    R+M/2...118
    Cost...$3.50/gal
    Mixtures with 92 Octane Premium
    10%...94.6 Octane
    20%...97.2 Octane
    30%...99.8 Octane
    Notes: Oxygenate. Very common in octane booster products. Has lower BTU content than toulene or xylene, but oxygenate effect makes the gasoline burn better and produce more energy.

    FORMULA 4
    Methanol or Ethanol
    R+M/2...101
    Cost...$0.60 - $1.75/gal
    Mixtures with 92 Octane Premium
    10%...94.3 Octane (Methanol)
    10%...94.7 Octane (Ethanol)
    20%...Not Recommended
    Notes: Methanol is wood alcohol. Ethanol is grain alcohol and found in Gasohol in 10% ratios. Both alcohols are mildly corrosive and will eat gas tank linings, rubber and aluminum if used in excessive ratios. Main ingredient in "Gas Dryers", combines with water.

    FORMULA 5
    Isopropyl Alcohol and Tertiary Butyl Alcohol
    R+M/2...101
    Cost...$0.60-$1.50/gal
    Mixtures with 92 Octane Premium
    10%...94.5 Octane
    20%...Not Recommended
    30%...Not Recommended
    Notes: Similar to Methanol/Ethanol. Isopropyl Alcohol is simply rubbing alcohol.

    Lot more info here.
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