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Thread: Firing up the Ramjet 502!

  1. #1
    Registered Member chevynut's Avatar
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    Firing up the Ramjet 502!

    Now that the stainless radiator hoses are installed I filled the radiator with coolant (water for now), filled the engine with oil (Mobil 1 5W30) and filled the T56 with ATF (Valvoline Dextron III). I also have almost completed the temporary wiring to get ready to fire the engine for the first time since I re-assembled it last fall.

    I filled the fuel tank with about 3 gallons of 91 octane and ran the fuel pump to pressurize the fuel system and check for leaks. Everything is okay . The starter cables are attached to the Optima Yellow Top battery and the Holley C950 is wired. I've done the minimal temporary wiring to crank and fire the engine as far as I can tell, using the stock ignition switch. I have a WBO2 and although I don't intend to do a lot of tuning right now, I still want to wire it up to see where I'm at as far as A-F ratio once the engine starts, so I still have to wire up the Holley WBO2 controller. Probably won't try to run it closed-loop for a while.

    Just before I try to fire it up I need to pull the distributor and prime the engine oil system. Then I need to install the distributor and set the base timing at 10 degrees advanced. My son is bringing me a laptop to load the EFI maps I got from Holley for the 502 since the software won't run on anything past Windows XP.. After buying a new battery and charger for my XP laptop the disc crashed!

    So hopefully before next weekend I should be able to fire the beast! I'll be videoing the startup!
    56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension


    Other vehicles:

    56 Chevy 2-door BelAir sedan
    56 Chevy 210 4-door sedan
    57 Chevy 210 4-door sedan
    1962 327/340HP Corvette
    1961 Willys CJ3B Jeep
    2001 Porsche Boxster S
    2003 Chevy Silverado 2500 HD Duramax
    2019 GMC Sierra Denali Duramax

  2. #2
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    I finally got to hear mine run a few months back. I've got to do additional tuning on down the road but everything was ok. It's a major milestone, congratulations!

  3. #3
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    That will be one hell of an exhilarating day, for sure! I hope all goes well for ya! Looking forward to the video!

  4. #4
    Registered Member BamaNomad's Avatar
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    We're all looking forward to hearing your engine start up and run in that beautiful chassis, CN!

  5. #5
    Registered Member chevynut's Avatar
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    Thanks guys, I'm not quite there yet but close. I just woke up this morning and realized I needed to deal with the power steering pump since I don't have a reservoir yet. It's about the only thing I didn't build for the car and I may just buy one already made. It should be pretty easy to deal with temporarily by making a loop. Can't wait to hear it fire. My wife says I should have a party with a bunch of people over, and I said.....what if it doesn't run? That would be a little embarrassing.
    56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension


    Other vehicles:

    56 Chevy 2-door BelAir sedan
    56 Chevy 210 4-door sedan
    57 Chevy 210 4-door sedan
    1962 327/340HP Corvette
    1961 Willys CJ3B Jeep
    2001 Porsche Boxster S
    2003 Chevy Silverado 2500 HD Duramax
    2019 GMC Sierra Denali Duramax

  6. #6
    Registered Member WagonCrazy's Avatar
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    Yeah...hold off on that party until you know it runs. Will keep the drama in your life minimized.
    Congrats on being close.
    Been a long time coming.
    I'm right behind you by about a few months on firing mine up too.
    1957 Nomad- LS1/T56 on C4 chassis
    1959 Fleetside Apache 1/2 ton, shortbed, big window, 327ci.

  7. #7
    Administrator 567chevys's Avatar
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    Cant Wait to see it run and hear it !

    Good Luck , Looks Killer

    Sid

    1955 2 DR Post
    1937 Chevy Coupe
    2023 Ford Super Duty F350 TREMOR
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    1955 Chevy Nomad
    1935 Ford 2dr Slant back I have 4

  8. #8
    Registered Member JT56's Avatar
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    Awesome Man!

  9. #9
    Registered Member chevynut's Avatar
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    I ran into a little problem today that I didn't notice in all these years. My PS pump is a "type 2" GM pump that I got from Street and Performance. I had to send one back because it had an integral reservoir, which I liked, but it wouldn't work with my brackets. I asked them to send me a pump with AN fittings on it.

    The pump I have has a hole in the top that is for an o-ring fitting adapter to AN6, which I think they sent me with the pump. The fitting coming out of the side of the pump is an AN10 adapter fitting! The fitting has always had a cover on it until now, so I didn't notice it was so big. I looked at some reservoirs and some have a -8 outlet and some have -10. It looks like this without the AN6 fitting....


    So now the question is how do I make a line from inlet to outlet, or address this in some other way? I have a serpentine system so I can't take the belt off of the pump. And I don't have any AN10 hose. Any ideas?

    The good news is that I checked my wiring by connecting the battery. When I turn the key on, the fuel pump runs under ECU control. The weird thing is it keeps running for a few seconds after I turn the key off....maybe that's programmable or something. It also means the injectors are still getting power after the key is off too, since the same relay controls power to them. Also, the starter solenoid engages in the "start" position. So everything seems to be wired right so far.
    56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension


    Other vehicles:

    56 Chevy 2-door BelAir sedan
    56 Chevy 210 4-door sedan
    57 Chevy 210 4-door sedan
    1962 327/340HP Corvette
    1961 Willys CJ3B Jeep
    2001 Porsche Boxster S
    2003 Chevy Silverado 2500 HD Duramax
    2019 GMC Sierra Denali Duramax

  10. #10
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    Quote Originally Posted by chevynut View Post
    I ran into a little problem today that I didn't notice in all these years. My PS pump is a "type 2" GM pump that I got from Street and Performance. I had to send one back because it had an integral reservoir, which I liked, but it wouldn't work with my brackets. I asked them to send me a pump with AN fittings on it.

    The pump I have has a hole in the top that is for an o-ring fitting adapter to AN6, which I think they sent me with the pump. The fitting coming out of the side of the pump is an AN10 adapter fitting! The fitting has always had a cover on it until now, so I didn't notice it was so big. I looked at some reservoirs and some have a -8 outlet and some have -10. It looks like this without the AN6 fitting....


    So now the question is how do I make a line from inlet to outlet, or address this in some other way? I have a serpentine system so I can't take the belt off of the pump. And I don't have any AN10 hose. Any ideas?

    The good news is that I checked my wiring by connecting the battery. When I turn the key on, the fuel pump runs under ECU control. The weird thing is it keeps running for a few seconds after I turn the key off....maybe that's programmable or something. It also means the injectors are still getting power after the key is off too, since the same relay controls power to them. Also, the starter solenoid engages in the "start" position. So everything seems to be wired right so far.
    I don't know how you are going to run oil through the pump with a loop and no reservoir. That would be a party stopper. Why not get one, and hook up the rack too?
    Last edited by 55 Rescue Dog; 09-25-2017 at 01:28 PM.

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