FiTech on 1970 402

Discussion in 'High Tech Retrofits' started by giggity, Oct 12, 2020.

  1. giggity

    giggity Veteran Member

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    thought Id post about my experience of adding a used Fitech on my 70 camaro.

    about a year ago I bought this used FiTech setup from a fellow camaro guy locally.

    It came with command center which is if you run this after a stock fuel pump. , which I didn not use.

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  2. giggity

    giggity Veteran Member

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    I started with a 750 Demon Carburetor, mechanical secondaries. It wasnt adjusted correctly, and had a pretty significant bog. I was going to dig into this later until I came across this FiTech.

    I changed out my stock tank with a Tanks Inc setup, really nice setup. It uses a Walbro pump.

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    I went with the rubber fuel injection line setup from Tanks inc, all using Russell fittings, and used their filter setup. Pretty sure ill end up replacing the rubber line with metal lines sometime in the future, but this was a quicker route.

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  3. giggity

    giggity Veteran Member

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    because the pump was pushing around 65psi, I have the change the regulator to kick it down to 7psi for the carb for the mean time until got the Fitech on. The Holley billet regulator comes with 2 springs, 1 for low pressure, and the other for high pressure. Putting the FiTech system on, I changed the spring to the high pressure.

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  4. giggity

    giggity Veteran Member

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    I bought the Pypes midsection exhaust, and added the 02 bung

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  5. giggity

    giggity Veteran Member

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    I wired up the system, took me maybe 30 minutes to wire everything up.

    I used the Fitech power source for the fuel pump, so it controls the fuel pump.

    Bought a new temp sensor for the intake.

    I have not wired FiTech to control my fans or ignition yet, I wanted to get the system running first.

    Bought longer intake studs, and am using the plastic spacer. I read there are some heat issues if not used.

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    Right off the bat, it fired right up, and ran. I have not fiddled with settings yet, Im going to wait until Im able to drive the car to let it learn and start messing with tuning.

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  6. giggity

    giggity Veteran Member

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    Throttle response is excellent!! There is a high idle, but all the trims can be adjusted, I used a default one out of the setup. I will get more into this when I get car on road.

     
  7. John Wright

    John Wright Veteran Member Lifetime Gold Member

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    Keep us updated. Make sure you don't have any vacuum leaks that would be causing the high idle or it will chase it's tail trying to adjust.(14.7 for a target of 13.17)
     
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  8. giggity

    giggity Veteran Member

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    working on body now, so will be a few months before I get it on the road again.

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  9. ErikNORCAL

    ErikNORCAL Veteran Member

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    Looking good, Keep up the progress!
     
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