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1973 F-250 - Turbo BBF - It's alive!

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  • Beagle
    replied
    vroom?

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  • BBR
    replied
    With the exception of the wideband input, the MS is completely wired up.

    I loaded TunerStudio onto an old Presario 700 running winXP. Because of the age of the laptop, I was concerned that I might have connectivity issues with the USB to serial adapter. But, it worked perfectly. It connected to the MS and loaded a new base tune in without any fuss.

    This MS is the one I built years ago for the original big block Ranger project. I ran it for a short time in that truck and later sold it to a friend when that truck was finally going away. He kept it, but never used it and I ended up getting it back from him when I was looking to use a MS to control the ignition in the Mustang. It worked GREAT for that. This will be the first time I have tried to control fuel AND ignition so it should be fun.

    Next up is rerouting fuel lines, installing the rails, checking for leaks and installing the ignition coils in place of the distributor.

    Edit: that password was left from a previous user. lol

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  • BBR
    replied
    I drilled and tapped the intake elbow for the intake air temperature sensor. I goofed up and drilled the original hole a little too large to tap 3/8" npt. So I had to drill it on out more, tap to 1/2" npt and use a reducer bushing that I loctited in place.

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  • BBR
    replied
    The 3" to 4" fits perfect. I need to drill and tap the TB elbow for the IAT sensor and finish wiring stuff. I did get the Camaro throttle cable mated to the Ford gas pedal. That was a much easier option than making the Ford cable work with the LS style TB.

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  • BBR
    replied
    Deka 80's and my transition arrived today!! Whoo hoo!! Getting closer to a running truck again!

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  • BBR
    replied
    Messed with wiring a bit and then chased a squirrel with the cold side tubing. It was easy and really seems to be turning out nice.

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  • Teddyzee
    replied
    That's looking great.
    I'm getting antsy to start my next project, but I need to build a garage first, which is it's own huge adventure.

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  • BBR
    replied
    Pulled the power distribution box and tied into the relays and fuses I need for the Megasquirt. There were only 3 wires I needed to add, but I really wanted to have everything running through that box.

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  • BBR
    replied
    Started wiring stuff up yesterday. I quickly realized that I should have done this back when the front clip was off. I need longer arms because it's hard to reach back in there! I am going to pull the Ford fuse/relay box back out so I can splice into it for ECU power, fuel pump power and injector power. It is a mess right now, but should look nice once loomed.

    In case you are wondering, the HEI distributor and 24lb injectors are not going to stay!

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  • BBR
    replied
    Drilled holes in the firewall (as if this truck needed more) an fed the MSPiggy and MAP sensor hose through. Does not sound like much, but it was harder than it probably should have been due to hole placement. lol

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  • Teddyzee
    replied
    Looking good. Great lighting in the engine bay, and I love the fan.

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  • BBR
    replied
    The harness is pretty much done. This megasquirt will be batch fire so this harness is pretty simple. I just need to test fit it, shorten the leads that are too long and splice it into the MSPiggy harness.

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  • BBR
    replied
    Yep. The same 552 shortblock with a mild turbo friendly cam and iron heads that lower the compression ratio to 9.5:1.

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  • Russell
    replied
    Originally posted by Deaf Bob View Post
    I'm lost... I thought this was a different motor than what was in the Stang
    Same short block new milder top end

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  • Deaf Bob
    replied
    Originally posted by BBR View Post
    It likely will make 450-500 on motor so my guess is that on 10psi it will make roughly the same amount of power as it did n/a in the Mustang. Benefit being at a lower rpm with a flatter torque curve and a camshaft that is power brake friendly. All good things for a vehicle this size and weight.

    I'm lost... I thought this was a different motor than what was in the Stang

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