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Hot Rod Special - Sets Record With 2 Cylinders !

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  • #31
    I would NOT want to be working at Holley right now.

    "yes this is the holley tech line how may I help you."

    "Hello - my name is Keith Turk, I have one of your brand new carburetors here on the HOTROD camaro - you know - HOTROD MAGAZINE - yea - we're out here in Bonneville trying to run our car - and YOUR carburetor killed our engine by dropping it's bowl vent down the intake during a run.... may I speak to your manager please..."


    UNREAL - I thought Holley had cleaned up their act? Who checks the tightness of a bowl vent on a new carb - or ever - REALLY?
    where has quality control gone in this country?

    UGH.


    a 2 cylinder BBC - carbed ---- now THIS is going to get interesting!
    There's always something new to learn.

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    • #32
      Originally posted by Russell View Post
      Is there anyway to block off 6 unused intake runners? With the intake valves closed would the fuel puddle up in the head and intake, cause any problem?
      Probably wouldn't puddle much since those cylinders would not be sucking.

      Too bad they can't configure it to use the remaining cylinders to supercharge the two firing ones!
      Life is short. Be a do'er and not a shoulda done'er.
      1969 Galaxie 500 https://bangshift.com/forum/forum/ba...69-galaxie-500
      1998 Mustang GT https://bangshift.com/forum/forum/ba...ix-to-4sixzero
      1983 Mustang GT 545/552/302/Turbo302 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
      1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
      1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

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      • #33
        How about tightening the rocker adjustment - effectively hanging the valves open as long as possible - if the piston to valve clearance is sufficient - this would reduce the pumping losses in the unused cylinders as much as possible - giving the two running cylinders less to drag along for the ride.

        Which two cylinders are they going to run it on?
        first and middle in the firing order?
        two next to each other in the same bank?
        V2 configuration?
        by firing order to space them evenly in the crank rotation?
        There's always something new to learn.

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        • #34
          Originally posted by BBR View Post
          Probably wouldn't puddle much since those cylinders would not be sucking.

          Too bad they can't configure it to use the remaining cylinders to supercharge the two firing ones!
          Hanging the exhaust valves open by over adjusting them, then letting the intake valve function normally. Keeps vacuum pull from those cylinders at a minimum and keeps fuel from puddling in the intake.
          Escaped on a technicality.

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          • #35
            neat, hope it works. Have they got it running yet?
            My fabulous web page

            "If it don't go, chrome it!" --Stroker McGurk

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            • #36
              Chad said that they're close a little while ago when I talked to him.
              That which you manifest is before you.

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              • #37
                Ok there is lot more to this than meets the eye. for one they are only going to run it on 2 cylinders which means the air flow through the motor will drastically change, the carb will need to be leaned out big time..... I would take it that they are only going to be able to have sparkplug wires on two of the plugs or the idea of running on two cylinders could be disputed........Then the idea of adjusting the exhaust valves to stay open and allowing the intake to work as normal can cause excess fuel/fuel vapor to build up in the exhaust system, effectively creating a bomb situation........Remember your going to have 6 cylinders dumping raw fuel into the exhaust system, you get enough in there and bam!!!! Just think what Brian's muffler looked like........

                Saying that I hope they get it going and get a record, I just don't want anyone getting hurt........
                Last edited by TC; August 16, 2011, 12:02 PM.

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                • #38
                  Yup - it would be much easier with port EFI.

                  The intake reversion will be way weird.

                  If not for loosing oil pressure from shoving the lifters out of the bores - it would be better to keep the intakes closed, and hang the exhausts open. If the intakes stayed closed there would be no fuel / air pulled into the cylinders to be pushed out creating huge backfire potential in the exhaust, and thereby a fire hazard.

                  This will be fun to watch.
                  There's always something new to learn.

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                  • #39
                    Also wouldn't leaving the exhaust valve open allow the motor to pull from both the exhaust and intake on the intake stoke, thus creating a backfire potential??


                    I think the best thing would be to leave the spark plugs out, and leave the valves alone........

                    Also if the motor has a Rev Kit they could just pull the rockers on those cylinder and leave the plugs out......The Rev Kit will keep the lifters where they need to be........
                    Last edited by TC; August 16, 2011, 12:27 PM.

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                    • #40
                      Leaving the plugs out and the valves as normal pumps fuel / air out the plug holes onto the headers, engine compartment - etc - creating a fire hazard, but it would certainly prevent any compression from building up in those 6!
                      There's always something new to learn.

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                      • #41
                        EFI would be way easier. All the tabs except two were pulled off the distributor reluctor and only two wires are hooked up. The headers point downwards plus air flow at speed will help pull fuel out. And the carb shouldn't need much more than the secondaries disabled for air flow. It'll pull less fuel with pulling less air.
                        Escaped on a technicality.

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                        • #42
                          Originally posted by BBR View Post
                          Too bad they can't configure it to use the remaining cylinders to supercharge the two firing ones!
                          get the cam ground with 2 lobes making a 2 cycle so you dont have the waisted "compression and power strokes"
                          http://www.bangshift.com/forum/forum...-consolidation

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                          • #43
                            I"m sure someone out there has the ability to make a custom cam blank, and grind it, at night in their hotel room....there's a lot of ability out there on the salt this week!
                            My fabulous web page

                            "If it don't go, chrome it!" --Stroker McGurk

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                            • #44
                              With a file and a 1/2" craftsman drill!!!!
                              Life is short. Be a do'er and not a shoulda done'er.
                              1969 Galaxie 500 https://bangshift.com/forum/forum/ba...69-galaxie-500
                              1998 Mustang GT https://bangshift.com/forum/forum/ba...ix-to-4sixzero
                              1983 Mustang GT 545/552/302/Turbo302 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
                              1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
                              1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

                              Comment


                              • #45
                                they posted on fb that they're on the way to the starting line with the 2 cyl camaro
                                My fabulous web page

                                "If it don't go, chrome it!" --Stroker McGurk

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