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Reply to "EFI conversion of my Spyder"

I just realized I never finished my parts list and costs.

I was at $810, but saved $60 by buying the CHT and IAT sensors from Ballenger Motorsports, so we're at $750.

I spent $210 on Amazon back in October for Gates Barricade EFI hose, clamps, fittings, adapters, some AN braided hose and fittings for the engine compartment, a fuel pump clamp, and even an adjustable aluminum AN wrench.

I spent another $40 at Advanced Auto getting some copper/steel fuel lines for feed and return through the tunnel.

I may have spent a few more dollars at Jegs or Summit buying a bulkhead fitting and teflon washers for the fuel return fitting in the tank.

I'm right around $1000, like I figured, except for the sweat. I've decided to go for idle speed control via  a stepper valve, so that valve and housing and vacuum hose will get added when I figure it out. I'll be using the built-in ports in the CB throttle bodies to add a "calibrated air leak" to control idle speed.

SpyderMike from the spyderclub.com most graciously(BIG THANK YOU!) sent me his CB vacuum reference kit. This installs a spacer under each throttle body with a small brass fitting to allow all 4 intakes to couple together. This hose gets routed to the ECU's onboard MAP(manifold air pressure) sensor. I'm hoping to hide the vacuum hose under the fan shroud.

vacuum kit

I spent some time today laying out the wiring on paper. I've got 28 wires to route to and from the ECU. Some are already there: power, ground, ignition, tach, three fused relays, and four wires to the fuel pump up front. For the fuel pump I'm stealing my trailer light harness that ran through the car when I flat-towed.

I've got to make a new coil mount for the Bosch "smart coil" to replace the "dumb" one from the Ford Escort(Megajolt).

I'm running new wires to the VR crank sensor, CHT, IAT, TPS, coil and injectors. That should keep me busy for a while...

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  • vacuum kit
Last edited by DannyP
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