list of free dollar mods

Discussion in 'Performance Mods' started by mew905, Jun 21, 2012.

  1. mew905

    mew905 New Member

    As can be seen in my introduction thread, im new to the forums as well as engines, however i have read alot of jaguar's site and some of the threads here and its hard to keep track of everything. My grubee 66cc motor seems to lack any power above 42kph, four stroking in the high RPM range. So I wanted to not only see, but compile a relatively complete list of free (this includes buying specialized tools or metal, common tools and materials less than a dollar/mod only)mods to ease power and ride comfort. So, help me compile this list? I dont need long technical details on why you should do it, thats what makes things confusing. So far, i have done the following:

    Ground down clutch actuator to elliptical shape to alleviate clutch pressure (yes, this helps A LOT)
    Adjusted carb needle C-clip (away from pointed end for leaner mixture)

    I vaguely recall:
    Shave piston skirt on intake side to draw more air
    Widen exhaust port
    Jb weld transfer ports to 'form an arrow' pointing toward the intake.
     
    Last edited: Jun 21, 2012

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  2. Al.Fisherman

    Al.Fisherman Active Member

    Less then a $1.00..... Good luck, as JB Wield, a file, and a Dremel tool cost more then a $1.00 each. Most people don't have a file and Dremel tool.
     
  3. mew905

    mew905 New Member

    I imagine some sandpaper and a lot of time could replace both a file and a dremel (depending if the mod requires a cutting wheel) there is always a way around things, for example grinding down the clutch actuator took 2 minutes on a table grinder, but i imagine its doable with sandpaper and say, a solid 30 minutes
     
  4. Nate888

    Nate888 Member

    pardon restarting an old thread, but I really like this question and there's a few I can think of

    • if your air filter is restrictive, you can build a filter box out of an empty smoothie or soda bottle, with the filter box and or carb wrapped in nylon stockings from the dollar store. engine breathes better ==> go faster (especially if you take time to find optimal tuned shape)
    • lube. sometimes auto parts stores, truck stops, and other random stores have heavy Molly grease in little packets almost like ketchup near the checkout. grease the bearings so you don't waste your energy making unwanted heat and vibration
    • pencil lube? easy to get pencils cheap or free. a little rod of graphite is great for cleaning and lubricating the chain at the same time. just run it over bearing surfaces, push the dirt and old grease out and leaving a residue of graphite micro powder lubricant. great for chains, except it won't hold up against moisture unless you use a secondary lubricant like bar and chain oil or 10W/40 or heavier motor oil (not wd40, is too thin) or even use candle wax along with the graphite to provide weather resistance
    • air's free or under a dollar at least. if you pump up your tires to 5 psi over their Max recommended level, you can go a little faster. be warned, this lets you know if there's anything sub par about your tire and tube installation by giving you a blowout. if they're real low, still lot of improvement to be had while staying in spec too
    • dollar store sandpaper could conceivably be used to smooth and polish exhaust port or even use it on a pane of glass to plane the head gasket mating surfaces (jaguar's method - note that you do need a new aluminum gasket afterwards. they're really hard but possible to hand fabricate/duplicate if you have some aluminum in the correct thickness, but I'd recommend buying one, since 4 hours of your time is probably worth more than a dollar or two spent on a gasket)
     
  5. CrazyDan

    CrazyDan Active Member

    Can't forget teflon tape as replacement gasket material.
     
  6. jaguar

    jaguar Well-Known Member

    most important: plane the cylinder head even (since it comes warped from the factory) and make your own head gasket from hi temp gasket material.

    also: add solder to the carbs needle as is outlined at my site (click on my signature link) to improve the air/fuel ratio
     
  7. Street Ryderz

    Street Ryderz Well-Known Member

    Guys you cant use just any plate glass for resurfacing the head or cylinder, Regular plate glass is not perfectly level architectural glass or the glass used to make fish tanks is what you want!
     
  8. jaguar

    jaguar Well-Known Member

    It doesn't have to be perfect because the gasket makes up for the remaining small irregularities
     
  9. gary55

    gary55 Well-Known Member

    Granite if you can get it
     
  10. Street Ryderz

    Street Ryderz Well-Known Member

    I would love to have one of those machinist stones I forget what its called but expensive!
     
  11. zippinaround

    zippinaround Active Member

    That's what I use a 3/4" thick square of granite the highly polished kind mainly used for fireplace hearth's (got for free at a fireplace shop) , works a treat and no fear of smashing glass everywhere
     
    CrazyDan likes this.
  12. CrazyDan

    CrazyDan Active Member

    Genius.
     
  13. gary55

    gary55 Well-Known Member

    Not sure but I think the aluminum would load up a abrasive stone. I have a medium and fine arkansas stone I might try out. Probably best to just use granite with sand paper.
     
  14. Nate888

    Nate888 Member

    if you're worried about surface irregularities of the glass, sand it down in the normal figure 8 motion, but every so often rotate it (ie. you could do rotations of 135deg. every ten or twenty figures of 8)

    jaguar, is the hi temp gasket material you recommend metallic, or is it some kind of synthetic, composite, etc.?
     
    Steve Best likes this.
  15. Street Ryderz

    Street Ryderz Well-Known Member

    I didn't mean an abrasive stone its a stone maybe it's granite idk but its absolutely flat was used to check that mated surfaces are true.
     
  16. gary55

    gary55 Well-Known Member

    Got ya. I just checked it out. Starrett uses a product called tru stone made of granite that is accurate to .000025" in 6" for metrology. They also use it for foundations of machinery that must be mounted on a absolutely flat surface.
     
  17. Street Ryderz

    Street Ryderz Well-Known Member

    Yeah something like that would be awesome!I was told they are pricey though!
     
  18. gary55

    gary55 Well-Known Member

    Check them out on ebay under granite surface plate . they have one that is 18"x24"x3" accurate to .00015 for 140.00 shipped. Get this it weighs 154 lbs. They have smaller ones too. Less than a dollar a pound, way cheaper than hamburger.
     
  19. Street Ryderz

    Street Ryderz Well-Known Member

    Yeah thats not bad! Thanks man!
     
  20. gary55

    gary55 Well-Known Member

    No problemo. The Starrett web site had some interesting stuff, so I learned something. It amazes me that modern precise instrumentation is trued by a stone formed 1000,000 years ago.
     
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