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  3. The "Group Buy" for the 1967-68 Deluxe Steering wheel recasting is now officially "Open". Now is the time to start sending in the wheels. The latest date that the wheels must be received by Kochs is 31 March 2025 The cost for each wheel is $750. The only "up front cost" is your shipping the wheel. If you send in more than one wheel, each additional wheel will cost $700. Shipping and insurance to Kochs and return shipping will be extra. You will be contacted by Teresa to make payment for the wheel(s) and return shipping and insurance when your wheel(s) is complete. The shipping will be factored on your delivery address and insurance. I will be sending the contact information all of you have sent me to Teresa at Kochs. Send in your wheels, horn pad and hardware and paint color sample if applicable. Please include: First and Last Name Shipping Address Phone number email address V8Buick "Member Name" Wheel Color (SEE THE BOTTOM FOR WHEEL COLOR) Pease read the "shipping to Kochs" below. There are two addresses. One for USPS Mailing One for FedEx and UPS shipping You can use USPS/Mail, UPS or FedEx to send in your core. Use the appropriate address depending on what service you use to ship. If you use USPS/Mail ship to: Koch's P.O. Box 959 Acton, CA 93510 Attn: Teresa If you use UPS or FedEx ship to: Koch's 7650 Soledad Canyon Road Acton CA 93510 Attn: Teresa Kochs Contact: Teresa (661) 268-1341 customerservice@kochs.com Wheel Color If you wheel is Black, you can list that in your information you send in with your wheel. For colored wheels, please contact Teresa about specifics for wheel color if you do not send in a color sample to match. Please contact me if you have any questions. Thank you to everyone for your participation in making this a reality. And "Thank You" Jim Weise, for allowing and facilitating this project! Michael .................... to remove this notice, click the X in the upper RH corner of this message box
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maybe dumb question, buts its bothering me

Discussion in 'Race 400/430/455' started by SkylarkSteve, Nov 30, 2004.

  1. SkylarkSteve

    SkylarkSteve Hello Michael

    Hey guys, I just saw a thread about blowby and it reminded me of something that I've been wondering about for a while. I know vacuum pumps are supposed to help seal rings better but if there is very high pressure above the ring and now because of the pump, there's negative pressure below the rings, then wouldn't the air have a stronger force pushing it past the rings? I'm not thinking of getting one but I'm one of those people that likes to know how things work and this is annoying me. Thanks for your input.
     
  2. Gary Bohannon

    Gary Bohannon Well-Known Member

    blowby

    For engine efficiency, a piston must have force pushing on the rod and crank with minimum resistance. Better yet, have pressure on top and vacuum on bottom and the piston will gain efficiency.
    Blowby builds up in the crankcase as pressure and contamination. At the same time oil gets above the rings and contaminates the combustion and the chamber. The oiled fuel mixture looses octaine and causes detonation. Carbon buildup adds more detonation....... an engine usually does not last long after blowby set in.
    Vacuum pumps can add horsepower to a real drag engine, but won't do much for a street/strip variety from what I hear.
     

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