ordered my slant 80 head!

Discussion in 'Motorized Bicycle General Discussion' started by toker_ace, May 19, 2009.

  1. toker_ace

    toker_ace Member

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    ccmotobikes.com | Cruising by the sea! has the 80cc slant heads. $22.95 plus $5.00 shipping. He said in an email that the average top end gain on the test bikes was around 6 mph. also, he said that the gain on the bottom end was like pedaling to take off was almost not needed. We'll see.
     
  2. Pablo

    Pablo Master Bike Builder & Forum Sponsor

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    Zoom bikes was a little less, $21.45 total delivered.

    I have not taken mine up that high yet....but I doubt I will see 46 mph. They look like they are the same heads. Hmm....mine seems to be 100% bottom end gain (nice), but I suppose my bike was fairly well tuned before.
     
  3. toker_ace

    toker_ace Member

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    HEY PABLO, Did you use two head gaskets? also, this is what he sent in an email. he said I would need two gaskets.

    We suggest the NGK BP6HS 7331 spark plug

    This plug has a longer thread causing the compression chamber to decreases
    in volume. Just like the slant heads decrease the compression volume, this
    plug gives you a compression boost that equals more power and torque.
    Usually spark plugs do not gives performance boost spark wise in this case
    it's all about the compression ratio. It is a definite performance upgrade
    that is as essential as the slant head
     
    #3 toker_ace, May 19, 2009
    Last edited: May 19, 2009
  4. Pablo

    Pablo Master Bike Builder & Forum Sponsor

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    HEY TOKER! Who is "he"?

    TWO? No I didn't use two head gaskets. I guess that would a be (silly) option if contact was a problem. I'd worry about sealing.

    Interesting on the BP5HS plug. From our site:

     
  5. toker_ace

    toker_ace Member

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    "he" is the guy from ccmotobikes. So if I use BP5HS i can use just one head gasket?
     
  6. Pablo

    Pablo Master Bike Builder & Forum Sponsor

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    OK. IF the head is the same and IF your engine is the same as mine, no need for two gaskets. But I know some engines have "contact" issues.

    BP5HS and BP6HS protrude the same amount.
     
  7. edman2478411

    edman2478411 New Member

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    Yeah most of the new engines don't have contact problems so that's why some people with older engines opt out for double gaskets. Let us know what improvements you see toker_ace!
     
  8. toker_ace

    toker_ace Member

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    I hate to tear into my new grubee because it runs great and has lots of power, but more power is even better. What should i torque the head bolts too?
     
  9. Pablo

    Pablo Master Bike Builder & Forum Sponsor

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    15-16 ft. lbs. IF you have real nuts, not acorn nuts.
     
  10. toker_ace

    toker_ace Member

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    ACORN NUTS! LOL. I thought you were being smart at first. lol. I got real nuts.
     
  11. Pablo

    Pablo Master Bike Builder & Forum Sponsor

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    NOBODY should have acorn nuts.:-||.duh.dance1
     
  12. Ardilla_Loca

    Ardilla_Loca New Member

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    I've got a new GT4 grubee 66cc and my piston hit the slant head. I've got an extra gasket that came with the kit so I'll try 2 tomorrow.
     
  13. Forbisher

    Forbisher New Member

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    Oh man, you can kiss your 90 day warranty bye bye, buddy! :D
    First you redline a brand new engine, now this LOL

    Those Grubees are tough little motors......as they say, "once you go Grubee you will never go back"

    How are you centering that 8 mm stud head on the 6 mm head studs?

    give me a call please.......
    Thanks

    PS : check out my avatar, new 35 teeth sprockets ......
     
    #13 Forbisher, May 20, 2009
    Last edited: May 20, 2009
  14. Ardilla_Loca

    Ardilla_Loca New Member

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    LOL I know :) I should be a Grubee ad. If I can't break it it can't be broke :)

    The good thing is that it was not even close so it didn't even try. I checked it by leaving the spark plug out and trying to turn it over. Hit right away. I put the old head back on and it ran like a champ.

    I'll call about those sprockets. Look very cool!!!
     
    #14 Ardilla_Loca, May 20, 2009
    Last edited: May 20, 2009
  15. justthisguy1292

    justthisguy1292 New Member

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    has anyone tried the slant head on a 66cc with a shiftkit? I'm debating between a tuned pipe and a slant head. any thoughts? I've got money for both but i gotta go to college someday
     
  16. Pablo

    Pablo Master Bike Builder & Forum Sponsor

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    Go with the pipe first.
     
  17. toker_ace

    toker_ace Member

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    I agree with pablo. I put my slant head back on and can't really tell any difference than the old head.
     

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